---
_id: '2168'
abstract:
- lang: eng
text: Many species have an essentially continuous distribution in space, in which
there are no natural divisions between randomly mating subpopulations. Yet, the
standard approach to modelling these populations is to impose an arbitrary grid
of demes, adjusting deme sizes and migration rates in an attempt to capture the
important features of the population. Such indirect methods are required because
of the failure of the classical models of isolation by distance, which have been
shown to have major technical flaws. A recently introduced model of extinction
and recolonisation in two dimensions solves these technical problems, and provides
a rigorous technical foundation for the study of populations evolving in a spatial
continuum. The coalescent process for this model is simply stated, but direct
simulation is very inefficient for large neighbourhood sizes. We present efficient
and exact algorithms to simulate this coalescent process for arbitrary sample
sizes and numbers of loci, and analyse these algorithms in detail.
article_processing_charge: No
author:
- first_name: Jerome
full_name: Kelleher, Jerome
last_name: Kelleher
- first_name: Alison
full_name: Etheridge, Alison
last_name: Etheridge
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Kelleher J, Etheridge A, Barton NH. Coalescent simulation in continuous space:
Algorithms for large neighbourhood size. Theoretical Population Biology.
2014;95:13-23. doi:10.1016/j.tpb.2014.05.001'
apa: 'Kelleher, J., Etheridge, A., & Barton, N. H. (2014). Coalescent simulation
in continuous space: Algorithms for large neighbourhood size. Theoretical Population
Biology. Academic Press. https://doi.org/10.1016/j.tpb.2014.05.001'
chicago: 'Kelleher, Jerome, Alison Etheridge, and Nicholas H Barton. “Coalescent
Simulation in Continuous Space: Algorithms for Large Neighbourhood Size.” Theoretical
Population Biology. Academic Press, 2014. https://doi.org/10.1016/j.tpb.2014.05.001.'
ieee: 'J. Kelleher, A. Etheridge, and N. H. Barton, “Coalescent simulation in continuous
space: Algorithms for large neighbourhood size,” Theoretical Population Biology,
vol. 95. Academic Press, pp. 13–23, 2014.'
ista: 'Kelleher J, Etheridge A, Barton NH. 2014. Coalescent simulation in continuous
space: Algorithms for large neighbourhood size. Theoretical Population Biology.
95, 13–23.'
mla: 'Kelleher, Jerome, et al. “Coalescent Simulation in Continuous Space: Algorithms
for Large Neighbourhood Size.” Theoretical Population Biology, vol. 95,
Academic Press, 2014, pp. 13–23, doi:10.1016/j.tpb.2014.05.001.'
short: J. Kelleher, A. Etheridge, N.H. Barton, Theoretical Population Biology 95
(2014) 13–23.
date_created: 2018-12-11T11:56:06Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2025-09-29T11:39:51Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1016/j.tpb.2014.05.001
ec_funded: 1
external_id:
isi:
- '000339460300002'
file:
- access_level: open_access
checksum: 979d7a8034e9df198f068f0d251f31bd
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:49Z
date_updated: 2020-07-14T12:45:31Z
file_id: '4839'
file_name: IST-2015-391-v1+1_1-s2.0-S0040580914000355-main.pdf
file_size: 569005
relation: main_file
file_date_updated: 2020-07-14T12:45:31Z
has_accepted_license: '1'
intvolume: ' 95'
isi: 1
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 13 - 23
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Theoretical Population Biology
publication_status: published
publisher: Academic Press
publist_id: '4816'
pubrep_id: '391'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Coalescent simulation in continuous space: Algorithms for large neighbourhood
size'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 95
year: '2014'
...
---
_id: '2169'
article_processing_charge: No
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Sebastian
full_name: Novak, Sebastian
id: 461468AE-F248-11E8-B48F-1D18A9856A87
last_name: Novak
orcid: 0000-0002-2519-824X
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
citation:
ama: Barton NH, Novak S, Paixao T. Diverse forms of selection in evolution and computer
science. PNAS. 2014;111(29):10398-10399. doi:10.1073/pnas.1410107111
apa: Barton, N. H., Novak, S., & Paixao, T. (2014). Diverse forms of selection
in evolution and computer science. PNAS. National Academy of Sciences.
https://doi.org/10.1073/pnas.1410107111
chicago: Barton, Nicholas H, Sebastian Novak, and Tiago Paixao. “Diverse Forms of
Selection in Evolution and Computer Science.” PNAS. National Academy of
Sciences, 2014. https://doi.org/10.1073/pnas.1410107111.
ieee: N. H. Barton, S. Novak, and T. Paixao, “Diverse forms of selection in evolution
and computer science,” PNAS, vol. 111, no. 29. National Academy of Sciences,
pp. 10398–10399, 2014.
ista: Barton NH, Novak S, Paixao T. 2014. Diverse forms of selection in evolution
and computer science. PNAS. 111(29), 10398–10399.
mla: Barton, Nicholas H., et al. “Diverse Forms of Selection in Evolution and Computer
Science.” PNAS, vol. 111, no. 29, National Academy of Sciences, 2014, pp.
10398–99, doi:10.1073/pnas.1410107111.
short: N.H. Barton, S. Novak, T. Paixao, PNAS 111 (2014) 10398–10399.
corr_author: '1'
date_created: 2018-12-11T11:56:07Z
date_published: 2014-07-22T00:00:00Z
date_updated: 2025-09-29T11:39:19Z
day: '22'
department:
- _id: NiBa
doi: 10.1073/pnas.1410107111
external_id:
isi:
- '000339310700017'
intvolume: ' 111'
isi: 1
issue: '29'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115508/
month: '07'
oa: 1
oa_version: Submitted Version
page: 10398 - 10399
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '4815'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Diverse forms of selection in evolution and computer science
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 111
year: '2014'
...
---
_id: '2170'
abstract:
- lang: eng
text: ' Short-read sequencing technologies have in principle made it feasible to
draw detailed inferences about the recent history of any organism. In practice,
however, this remains challenging due to the difficulty of genome assembly in
most organisms and the lack of statistical methods powerful enough to discriminate
between recent, nonequilibrium histories. We address both the assembly and inference
challenges. We develop a bioinformatic pipeline for generating outgroup-rooted
alignments of orthologous sequence blocks from de novo low-coverage short-read
data for a small number of genomes, and show how such sequence blocks can be used
to fit explicit models of population divergence and admixture in a likelihood
framework. To illustrate our approach, we reconstruct the Pleistocene history
of an oak-feeding insect (the oak gallwasp Biorhiza pallida), which, in common
with many other taxa, was restricted during Pleistocene ice ages to a longitudinal
series of southern refugia spanning the Western Palaearctic. Our analysis of sequence
blocks sampled from a single genome from each of three major glacial refugia reveals
support for an unexpected history dominated by recent admixture. Despite the fact
that 80% of the genome is affected by admixture during the last glacial cycle,
we are able to infer the deeper divergence history of these populations. These
inferences are robust to variation in block length, mutation model and the sampling
location of individual genomes within refugia. This combination of de novo assembly
and numerical likelihood calculation provides a powerful framework for estimating
recent population history that can be applied to any organism without the need
for prior genetic resources.'
acknowledgement: This work was funded by NERC grants to G Stone, J Nicholls, K Lohse
and N Barton (NE/J010499, NBAF375, NE/E014453/1 and NER/B/S2003/00856).
article_processing_charge: No
author:
- first_name: Jack
full_name: Hearn, Jack
last_name: Hearn
- first_name: Graham
full_name: Stone, Graham
last_name: Stone
- first_name: Lynsey
full_name: Bunnefeld, Lynsey
last_name: Bunnefeld
- first_name: James
full_name: Nicholls, James
last_name: Nicholls
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Konrad
full_name: Lohse, Konrad
last_name: Lohse
citation:
ama: Hearn J, Stone G, Bunnefeld L, Nicholls J, Barton NH, Lohse K. Likelihood-based
inference of population history from low-coverage de novo genome assemblies. Molecular
Ecology. 2014;23(1):198-211. doi:10.1111/mec.12578
apa: Hearn, J., Stone, G., Bunnefeld, L., Nicholls, J., Barton, N. H., & Lohse,
K. (2014). Likelihood-based inference of population history from low-coverage
de novo genome assemblies. Molecular Ecology. Wiley-Blackwell. https://doi.org/10.1111/mec.12578
chicago: Hearn, Jack, Graham Stone, Lynsey Bunnefeld, James Nicholls, Nicholas H
Barton, and Konrad Lohse. “Likelihood-Based Inference of Population History from
Low-Coverage de Novo Genome Assemblies.” Molecular Ecology. Wiley-Blackwell,
2014. https://doi.org/10.1111/mec.12578.
ieee: J. Hearn, G. Stone, L. Bunnefeld, J. Nicholls, N. H. Barton, and K. Lohse,
“Likelihood-based inference of population history from low-coverage de novo genome
assemblies,” Molecular Ecology, vol. 23, no. 1. Wiley-Blackwell, pp. 198–211,
2014.
ista: Hearn J, Stone G, Bunnefeld L, Nicholls J, Barton NH, Lohse K. 2014. Likelihood-based
inference of population history from low-coverage de novo genome assemblies. Molecular
Ecology. 23(1), 198–211.
mla: Hearn, Jack, et al. “Likelihood-Based Inference of Population History from
Low-Coverage de Novo Genome Assemblies.” Molecular Ecology, vol. 23, no.
1, Wiley-Blackwell, 2014, pp. 198–211, doi:10.1111/mec.12578.
short: J. Hearn, G. Stone, L. Bunnefeld, J. Nicholls, N.H. Barton, K. Lohse, Molecular
Ecology 23 (2014) 198–211.
date_created: 2018-12-11T11:56:07Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2025-09-29T11:38:51Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/mec.12578
external_id:
isi:
- '000330950900017'
file:
- access_level: open_access
checksum: 4de1ab255976a8ae77eb0e55ad62ecc9
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:07:52Z
date_updated: 2020-07-14T12:45:31Z
file_id: '4651'
file_name: IST-2016-559-v1+1_Hearn_et_al.pdf
file_size: 807444
relation: main_file
- access_level: open_access
checksum: 01a8073e071c088500425f910b0f1f71
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:07:53Z
date_updated: 2020-07-14T12:45:31Z
file_id: '4652'
file_name: IST-2016-559-v1+2_Hearn_et_al_Suppl.pdf
file_size: 1518088
relation: main_file
file_date_updated: 2020-07-14T12:45:31Z
has_accepted_license: '1'
intvolume: ' 23'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 198 - 211
publication: Molecular Ecology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '4814'
pubrep_id: '559'
quality_controlled: '1'
related_material:
record:
- id: '9754'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Likelihood-based inference of population history from low-coverage de novo
genome assemblies
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 23
year: '2014'
...
---
_id: '2174'
abstract:
- lang: eng
text: 'When polygenic traits are under stabilizing selection, many different combinations
of alleles allow close adaptation to the optimum. If alleles have equal effects,
all combinations that result in the same deviation from the optimum are equivalent.
Furthermore, the genetic variance that is maintained by mutation-selection balance
is 2μ/S per locus, where μ is the mutation rate and S the strength of stabilizing
selection. In reality, alleles vary in their effects, making the fitness landscape
asymmetric and complicating analysis of the equilibria. We show that that the
resulting genetic variance depends on the fraction of alleles near fixation, which
contribute by 2μ/S, and on the total mutational effects of alleles that are at
intermediate frequency. The inpplayfi between stabilizing selection and mutation
leads to a sharp transition: alleles with effects smaller than a threshold value
of 2 remain polymorphic, whereas those with larger effects are fixed. The genetic
load in equilibrium is less than for traits of equal effects, and the fitness
equilibria are more similar. We find p the optimum is displaced, alleles with
effects close to the threshold value sweep first, and their rate of increase is
bounded by Long-term response leads in general to well-adapted traits, unlike
the case of equal effects that often end up at a suboptimal fitness peak. However,
the particular peaks to which the populations converge are extremely sensitive
to the initial states and to the speed of the shift of the optimum trait value.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Harold
full_name: De Vladar, Harold
last_name: De Vladar
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: De Vladar H, Barton NH. Stability and response of polygenic traits to stabilizing
selection and mutation. Genetics. 2014;197(2):749-767. doi:10.1534/genetics.113.159111
apa: De Vladar, H., & Barton, N. H. (2014). Stability and response of polygenic
traits to stabilizing selection and mutation. Genetics. Genetics Society
of America. https://doi.org/10.1534/genetics.113.159111
chicago: De Vladar, Harold, and Nicholas H Barton. “Stability and Response of Polygenic
Traits to Stabilizing Selection and Mutation.” Genetics. Genetics Society
of America, 2014. https://doi.org/10.1534/genetics.113.159111.
ieee: H. De Vladar and N. H. Barton, “Stability and response of polygenic traits
to stabilizing selection and mutation,” Genetics, vol. 197, no. 2. Genetics
Society of America, pp. 749–767, 2014.
ista: De Vladar H, Barton NH. 2014. Stability and response of polygenic traits to
stabilizing selection and mutation. Genetics. 197(2), 749–767.
mla: De Vladar, Harold, and Nicholas H. Barton. “Stability and Response of Polygenic
Traits to Stabilizing Selection and Mutation.” Genetics, vol. 197, no.
2, Genetics Society of America, 2014, pp. 749–67, doi:10.1534/genetics.113.159111.
short: H. De Vladar, N.H. Barton, Genetics 197 (2014) 749–767.
corr_author: '1'
date_created: 2018-12-11T11:56:08Z
date_published: 2014-06-01T00:00:00Z
date_updated: 2025-09-29T11:37:14Z
day: '01'
department:
- _id: NiBa
doi: 10.1534/genetics.113.159111
ec_funded: 1
external_id:
arxiv:
- '1404.1017'
isi:
- '000338697000027'
intvolume: ' 197'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1404.1017
month: '06'
oa: 1
oa_version: Submitted Version
page: 749 - 767
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '4809'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Stability and response of polygenic traits to stabilizing selection and mutation
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 197
year: '2014'
...
---
_id: '1908'
abstract:
- lang: eng
text: In large populations, multiple beneficial mutations may be simultaneously
spreading. In asexual populations, these mutations must either arise on the same
background or compete against each other. In sexual populations, recombination
can bring together beneficial alleles from different backgrounds, but tightly
linked alleles may still greatly interfere with each other. We show for well-mixed
populations that when this interference is strong, the genome can be seen as consisting
of many effectively asexual stretches linked together. The rate at which beneficial
alleles fix is thus roughly proportional to the rate of recombination and depends
only logarithmically on the mutation supply and the strength of selection. Our
scaling arguments also allow us to predict, with reasonable accuracy, the fitness
distribution of fixed mutations when the mutational effect sizes are broad. We
focus on the regime in which crossovers occur more frequently than beneficial
mutations, as is likely to be the case for many natural populations.
article_processing_charge: No
arxiv: 1
author:
- first_name: Daniel
full_name: Weissman, Daniel
id: 2D0CE020-F248-11E8-B48F-1D18A9856A87
last_name: Weissman
- first_name: Oskar
full_name: Hallatschek, Oskar
last_name: Hallatschek
citation:
ama: Weissman D, Hallatschek O. The rate of adaptation in large sexual populations
with linear chromosomes. Genetics. 2014;196(4):1167-1183. doi:10.1534/genetics.113.160705
apa: Weissman, D., & Hallatschek, O. (2014). The rate of adaptation in large
sexual populations with linear chromosomes. Genetics. Genetics Society
of America. https://doi.org/10.1534/genetics.113.160705
chicago: Weissman, Daniel, and Oskar Hallatschek. “The Rate of Adaptation in Large
Sexual Populations with Linear Chromosomes.” Genetics. Genetics Society
of America, 2014. https://doi.org/10.1534/genetics.113.160705.
ieee: D. Weissman and O. Hallatschek, “The rate of adaptation in large sexual populations
with linear chromosomes,” Genetics, vol. 196, no. 4. Genetics Society of
America, pp. 1167–1183, 2014.
ista: Weissman D, Hallatschek O. 2014. The rate of adaptation in large sexual populations
with linear chromosomes. Genetics. 196(4), 1167–1183.
mla: Weissman, Daniel, and Oskar Hallatschek. “The Rate of Adaptation in Large Sexual
Populations with Linear Chromosomes.” Genetics, vol. 196, no. 4, Genetics
Society of America, 2014, pp. 1167–83, doi:10.1534/genetics.113.160705.
short: D. Weissman, O. Hallatschek, Genetics 196 (2014) 1167–1183.
corr_author: '1'
date_created: 2018-12-11T11:54:39Z
date_published: 2014-04-01T00:00:00Z
date_updated: 2025-09-29T12:27:03Z
day: '01'
department:
- _id: NiBa
doi: 10.1534/genetics.113.160705
ec_funded: 1
external_id:
arxiv:
- '1307.0737'
isi:
- '000334179300022'
intvolume: ' 196'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1307.0737
month: '04'
oa: 1
oa_version: Submitted Version
page: 1167 - 1183
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '5187'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The rate of adaptation in large sexual populations with linear chromosomes
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 196
year: '2014'
...
---
_id: '1909'
abstract:
- lang: eng
text: 'Summary: Phenotypes are often environmentally dependent, which requires organisms
to track environmental change. The challenge for organisms is to construct phenotypes
using the most accurate environmental cue. Here, we use a quantitative genetic
model of adaptation by additive genetic variance, within- and transgenerational
plasticity via linear reaction norms and indirect genetic effects respectively.
We show how the relative influence on the eventual phenotype of these components
depends on the predictability of environmental change (fast or slow, sinusoidal
or stochastic) and the developmental lag τ between when the environment is perceived
and when selection acts. We then decompose expected mean fitness into three components
(variance load, adaptation and fluctuation load) to study the fitness costs of
within- and transgenerational plasticity. A strongly negative maternal effect
coefficient m minimizes the variance load, but a strongly positive m minimises
the fluctuation load. The adaptation term is maximized closer to zero, with positive
or negative m preferred under different environmental scenarios. Phenotypic plasticity
is higher when τ is shorter and when the environment changes frequently between
seasonal extremes. Expected mean population fitness is highest away from highest
observed levels of phenotypic plasticity. Within- and transgenerational plasticity
act in concert to deliver well-adapted phenotypes, which emphasizes the need to
study both simultaneously when investigating phenotypic evolution.'
acknowledgement: 'Engineering and Physical Sciences Research Council. Grant Number:
EP/H031928/1'
article_processing_charge: No
author:
- first_name: Thomas
full_name: Ezard, Thomas
last_name: Ezard
- first_name: Roshan
full_name: Prizak, Roshan
id: 4456104E-F248-11E8-B48F-1D18A9856A87
last_name: Prizak
- first_name: Rebecca
full_name: Hoyle, Rebecca
last_name: Hoyle
citation:
ama: Ezard T, Prizak R, Hoyle R. The fitness costs of adaptation via phenotypic
plasticity and maternal effects. Functional Ecology. 2014;28(3):693-701.
doi:10.1111/1365-2435.12207
apa: Ezard, T., Prizak, R., & Hoyle, R. (2014). The fitness costs of adaptation
via phenotypic plasticity and maternal effects. Functional Ecology. Wiley-Blackwell.
https://doi.org/10.1111/1365-2435.12207
chicago: Ezard, Thomas, Roshan Prizak, and Rebecca Hoyle. “The Fitness Costs of
Adaptation via Phenotypic Plasticity and Maternal Effects.” Functional Ecology.
Wiley-Blackwell, 2014. https://doi.org/10.1111/1365-2435.12207.
ieee: T. Ezard, R. Prizak, and R. Hoyle, “The fitness costs of adaptation via phenotypic
plasticity and maternal effects,” Functional Ecology, vol. 28, no. 3. Wiley-Blackwell,
pp. 693–701, 2014.
ista: Ezard T, Prizak R, Hoyle R. 2014. The fitness costs of adaptation via phenotypic
plasticity and maternal effects. Functional Ecology. 28(3), 693–701.
mla: Ezard, Thomas, et al. “The Fitness Costs of Adaptation via Phenotypic Plasticity
and Maternal Effects.” Functional Ecology, vol. 28, no. 3, Wiley-Blackwell,
2014, pp. 693–701, doi:10.1111/1365-2435.12207.
short: T. Ezard, R. Prizak, R. Hoyle, Functional Ecology 28 (2014) 693–701.
date_created: 2018-12-11T11:54:40Z
date_published: 2014-06-01T00:00:00Z
date_updated: 2025-09-29T12:26:34Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1111/1365-2435.12207
external_id:
isi:
- '000335954900016'
file:
- access_level: open_access
checksum: 3cbe8623174709a8ceec2103246f8fe0
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:45Z
date_updated: 2020-07-14T12:45:20Z
file_id: '5167'
file_name: IST-2016-419-v1+1_Ezard_et_al-2014-Functional_Ecology.pdf
file_size: 536154
relation: main_file
file_date_updated: 2020-07-14T12:45:20Z
has_accepted_license: '1'
intvolume: ' 28'
isi: 1
issue: '3'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 693 - 701
publication: Functional Ecology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5186'
pubrep_id: '419'
scopus_import: '1'
status: public
title: The fitness costs of adaptation via phenotypic plasticity and maternal effects
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 28
year: '2014'
...
---
_id: '1932'
abstract:
- lang: eng
text: The existence of complex (multiple-step) genetic adaptations that are "irreducible"
(i.e., all partial combinations are less fit than the original genotype) is one
of the longest standing problems in evolutionary biology. In standard genetics
parlance, these adaptations require the crossing of a wide adaptive valley of
deleterious intermediate stages. Here, we demonstrate, using a simple model, that
evolution can cross wide valleys to produce "irreducibly complex" adaptations
by making use of previously cryptic mutations. When revealed by an evolutionary
capacitor, previously cryptic mutants have higher initial frequencies than do
new mutations, bringing them closer to a valley-crossing saddle in allele frequency
space. Moreover, simple combinatorics implies an enormous number of candidate
combinations exist within available cryptic genetic variation. We model the dynamics
of crossing of a wide adaptive valley after a capacitance event using both numerical
simulations and analytical approximations. Although individual valley crossing
events become less likely as valleys widen, by taking the combinatorics of genotype
space into account, we see that revealing cryptic variation can cause the frequent
evolution of complex adaptations.
acknowledgement: "Funded by National Institutes of Health. Grant Numbers: R01GM076041,
R01GM104040 \r\n\r\nSimons Foundation\r\n\r\n"
article_processing_charge: No
arxiv: 1
author:
- first_name: Meredith
full_name: Trotter, Meredith
last_name: Trotter
- first_name: Daniel
full_name: Weissman, Daniel
id: 2D0CE020-F248-11E8-B48F-1D18A9856A87
last_name: Weissman
- first_name: Grant
full_name: Peterson, Grant
last_name: Peterson
- first_name: Kayla
full_name: Peck, Kayla
last_name: Peck
- first_name: Joanna
full_name: Masel, Joanna
last_name: Masel
citation:
ama: Trotter M, Weissman D, Peterson G, Peck K, Masel J. Cryptic genetic variation
can make "irreducible complexity" a common mode of adaptation
in sexual populations. Evolution. 2014;68(12):3357-3367. doi:10.1111/evo.12517
apa: Trotter, M., Weissman, D., Peterson, G., Peck, K., & Masel, J. (2014).
Cryptic genetic variation can make "irreducible complexity"
a common mode of adaptation in sexual populations. Evolution. Wiley-Blackwell.
https://doi.org/10.1111/evo.12517
chicago: Trotter, Meredith, Daniel Weissman, Grant Peterson, Kayla Peck, and Joanna
Masel. “Cryptic Genetic Variation Can Make "Irreducible Complexity"
a Common Mode of Adaptation in Sexual Populations.” Evolution. Wiley-Blackwell,
2014. https://doi.org/10.1111/evo.12517.
ieee: M. Trotter, D. Weissman, G. Peterson, K. Peck, and J. Masel, “Cryptic genetic
variation can make "irreducible complexity" a common mode of
adaptation in sexual populations,” Evolution, vol. 68, no. 12. Wiley-Blackwell,
pp. 3357–3367, 2014.
ista: Trotter M, Weissman D, Peterson G, Peck K, Masel J. 2014. Cryptic genetic
variation can make "irreducible complexity" a common mode of
adaptation in sexual populations. Evolution. 68(12), 3357–3367.
mla: Trotter, Meredith, et al. “Cryptic Genetic Variation Can Make "Irreducible
Complexity" a Common Mode of Adaptation in Sexual Populations.” Evolution,
vol. 68, no. 12, Wiley-Blackwell, 2014, pp. 3357–67, doi:10.1111/evo.12517.
short: M. Trotter, D. Weissman, G. Peterson, K. Peck, J. Masel, Evolution 68 (2014)
3357–3367.
date_created: 2018-12-11T11:54:47Z
date_published: 2014-12-01T00:00:00Z
date_updated: 2025-09-29T12:10:43Z
day: '01'
department:
- _id: NiBa
doi: 10.1111/evo.12517
ec_funded: 1
external_id:
arxiv:
- '1310.6077'
isi:
- '000346075600001'
intvolume: ' 68'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1310.6077
month: '12'
oa: 1
oa_version: Submitted Version
page: 3357 - 3367
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Evolution
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5162'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cryptic genetic variation can make "irreducible complexity" a common
mode of adaptation in sexual populations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 68
year: '2014'
...
---
_id: '1936'
abstract:
- lang: eng
text: 'The social intelligence hypothesis states that the need to cope with complexities
of social life has driven the evolution of advanced cognitive abilities. It is
usually invoked in the context of challenges arising from complex intragroup structures,
hierarchies, and alliances. However, a fundamental aspect of group living remains
largely unexplored as a driving force in cognitive evolution: the competition
between individuals searching for resources (producers) and conspecifics that
parasitize their findings (scroungers). In populations of social foragers, abilities
that enable scroungers to steal by outsmarting producers, and those allowing producers
to prevent theft by outsmarting scroungers, are likely to be beneficial and may
fuel a cognitive arms race. Using analytical theory and agent-based simulations,
we present a general model for such a race that is driven by the producer-scrounger
game and show that the race''s plausibility is dramatically affected by the nature
of the evolving abilities. If scrounging and scrounging avoidance rely on separate,
strategy-specific cognitive abilities, arms races are short-lived and have a limited
effect on cognition. However, general cognitive abilities that facilitate both
scrounging and scrounging avoidance undergo stable, long-lasting arms races. Thus,
ubiquitous foraging interactions may lead to the evolution of general cognitive
abilities in social animals, without the requirement of complex intragroup structures.'
article_processing_charge: No
author:
- first_name: Michal
full_name: Arbilly, Michal
last_name: Arbilly
- first_name: Daniel
full_name: Weissman, Daniel
id: 2D0CE020-F248-11E8-B48F-1D18A9856A87
last_name: Weissman
- first_name: Marcus
full_name: Feldman, Marcus
last_name: Feldman
- first_name: Uri
full_name: Grodzinski, Uri
last_name: Grodzinski
citation:
ama: Arbilly M, Weissman D, Feldman M, Grodzinski U. An arms race between producers
and scroungers can drive the evolution of social cognition. Behavioral Ecology.
2014;25(3):487-495. doi:10.1093/beheco/aru002
apa: Arbilly, M., Weissman, D., Feldman, M., & Grodzinski, U. (2014). An arms
race between producers and scroungers can drive the evolution of social cognition.
Behavioral Ecology. Oxford University Press. https://doi.org/10.1093/beheco/aru002
chicago: Arbilly, Michal, Daniel Weissman, Marcus Feldman, and Uri Grodzinski. “An
Arms Race between Producers and Scroungers Can Drive the Evolution of Social Cognition.”
Behavioral Ecology. Oxford University Press, 2014. https://doi.org/10.1093/beheco/aru002.
ieee: M. Arbilly, D. Weissman, M. Feldman, and U. Grodzinski, “An arms race between
producers and scroungers can drive the evolution of social cognition,” Behavioral
Ecology, vol. 25, no. 3. Oxford University Press, pp. 487–495, 2014.
ista: Arbilly M, Weissman D, Feldman M, Grodzinski U. 2014. An arms race between
producers and scroungers can drive the evolution of social cognition. Behavioral
Ecology. 25(3), 487–495.
mla: Arbilly, Michal, et al. “An Arms Race between Producers and Scroungers Can
Drive the Evolution of Social Cognition.” Behavioral Ecology, vol. 25,
no. 3, Oxford University Press, 2014, pp. 487–95, doi:10.1093/beheco/aru002.
short: M. Arbilly, D. Weissman, M. Feldman, U. Grodzinski, Behavioral Ecology 25
(2014) 487–495.
date_created: 2018-12-11T11:54:48Z
date_published: 2014-02-13T00:00:00Z
date_updated: 2025-09-29T12:07:50Z
day: '13'
department:
- _id: NiBa
doi: 10.1093/beheco/aru002
ec_funded: 1
external_id:
isi:
- '000336486100012'
intvolume: ' 25'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4014306/
month: '02'
oa: 1
oa_version: Submitted Version
page: 487 - 495
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Behavioral Ecology
publication_status: published
publisher: Oxford University Press
publist_id: '5157'
quality_controlled: '1'
scopus_import: '1'
status: public
title: An arms race between producers and scroungers can drive the evolution of social
cognition
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 25
year: '2014'
...
---
_id: '537'
abstract:
- lang: eng
text: Transgenerational effects are broader than only parental relationships. Despite
mounting evidence that multigenerational effects alter phenotypic and life-history
traits, our understanding of how they combine to determine fitness is not well
developed because of the added complexity necessary to study them. Here, we derive
a quantitative genetic model of adaptation to an extraordinary new environment
by an additive genetic component, phenotypic plasticity, maternal and grandmaternal
effects. We show how, at equilibrium, negative maternal and negative grandmaternal
effects maximize expected population mean fitness. We define negative transgenerational
effects as those that have a negative effect on trait expression in the subsequent
generation, that is, they slow, or potentially reverse, the expected evolutionary
dynamic. When maternal effects are positive, negative grandmaternal effects are
preferred. As expected under Mendelian inheritance, the grandmaternal effects
have a lower impact on fitness than the maternal effects, but this dual inheritance
model predicts a more complex relationship between maternal and grandmaternal
effects to constrain phenotypic variance and so maximize expected population mean
fitness in the offspring.
article_processing_charge: No
author:
- first_name: Roshan
full_name: Prizak, Roshan
id: 4456104E-F248-11E8-B48F-1D18A9856A87
last_name: Prizak
- first_name: Thomas
full_name: Ezard, Thomas
last_name: Ezard
- first_name: Rebecca
full_name: Hoyle, Rebecca
last_name: Hoyle
citation:
ama: Prizak R, Ezard T, Hoyle R. Fitness consequences of maternal and grandmaternal
effects. Ecology and Evolution. 2014;4(15):3139-3145. doi:10.1002/ece3.1150
apa: Prizak, R., Ezard, T., & Hoyle, R. (2014). Fitness consequences of maternal
and grandmaternal effects. Ecology and Evolution. Wiley-Blackwell. https://doi.org/10.1002/ece3.1150
chicago: Prizak, Roshan, Thomas Ezard, and Rebecca Hoyle. “Fitness Consequences
of Maternal and Grandmaternal Effects.” Ecology and Evolution. Wiley-Blackwell,
2014. https://doi.org/10.1002/ece3.1150.
ieee: R. Prizak, T. Ezard, and R. Hoyle, “Fitness consequences of maternal and grandmaternal
effects,” Ecology and Evolution, vol. 4, no. 15. Wiley-Blackwell, pp. 3139–3145,
2014.
ista: Prizak R, Ezard T, Hoyle R. 2014. Fitness consequences of maternal and grandmaternal
effects. Ecology and Evolution. 4(15), 3139–3145.
mla: Prizak, Roshan, et al. “Fitness Consequences of Maternal and Grandmaternal
Effects.” Ecology and Evolution, vol. 4, no. 15, Wiley-Blackwell, 2014,
pp. 3139–45, doi:10.1002/ece3.1150.
short: R. Prizak, T. Ezard, R. Hoyle, Ecology and Evolution 4 (2014) 3139–3145.
date_created: 2018-12-11T11:47:02Z
date_published: 2014-07-19T00:00:00Z
date_updated: 2025-09-29T13:17:53Z
day: '19'
ddc:
- '530'
- '571'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1002/ece3.1150
external_id:
isi:
- '000340575000015'
file:
- access_level: open_access
checksum: e32abf75a248e7a11811fd7f60858769
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:11:31Z
date_updated: 2020-07-14T12:46:38Z
file_id: '4886'
file_name: IST-2018-934-v1+1_Prizak_et_al-2014-Ecology_and_Evolution.pdf
file_size: 621582
relation: main_file
file_date_updated: 2020-07-14T12:46:38Z
has_accepted_license: '1'
intvolume: ' 4'
isi: 1
issue: '15'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 3139 - 3145
publication: Ecology and Evolution
publication_status: published
publisher: Wiley-Blackwell
publist_id: '7280'
pubrep_id: '934'
scopus_import: '1'
status: public
title: Fitness consequences of maternal and grandmaternal effects
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 4
year: '2014'
...
---
_id: '2023'
abstract:
- lang: eng
text: 'Understanding the evolution of dispersal is essential for understanding and
predicting the dynamics of natural populations. Two main factors are known to
influence dispersal evolution: spatio-temporal variation in the environment and
relatedness between individuals. However, the relation between these factors is
still poorly understood, and they are usually treated separately. In this article,
I present a theoretical framework that contains and connects effects of both environmental
variation and relatedness, and reproduces and extends their known features. Spatial
habitat variation selects for balanced dispersal strategies, whereby the population
is kept at an ideal free distribution. Within this class of dispersal strategies,
I explain how increased dispersal is promoted by perturbations to the dispersal
type frequencies. An explicit formula shows the magnitude of the selective advantage
of increased dispersal in terms of the spatial variability in the frequencies
of the different dispersal strategies present. These variances are capable of
capturing various sources of stochasticity and hence establish a common scale
for their effects on the evolution of dispersal. The results furthermore indicate
an alternative approach to identifying effects of relatedness on dispersal evolution.'
article_processing_charge: No
author:
- first_name: Sebastian
full_name: Novak, Sebastian
id: 461468AE-F248-11E8-B48F-1D18A9856A87
last_name: Novak
orcid: 0000-0002-2519-824X
citation:
ama: Novak S. Habitat heterogeneities versus spatial type frequency variances as
driving forces of dispersal evolution. Ecology and Evolution. 2014;4(24):4589-4597.
doi:10.1002/ece3.1289
apa: Novak, S. (2014). Habitat heterogeneities versus spatial type frequency variances
as driving forces of dispersal evolution. Ecology and Evolution. Wiley-Blackwell.
https://doi.org/10.1002/ece3.1289
chicago: Novak, Sebastian. “Habitat Heterogeneities versus Spatial Type Frequency
Variances as Driving Forces of Dispersal Evolution.” Ecology and Evolution.
Wiley-Blackwell, 2014. https://doi.org/10.1002/ece3.1289.
ieee: S. Novak, “Habitat heterogeneities versus spatial type frequency variances
as driving forces of dispersal evolution,” Ecology and Evolution, vol.
4, no. 24. Wiley-Blackwell, pp. 4589–4597, 2014.
ista: Novak S. 2014. Habitat heterogeneities versus spatial type frequency variances
as driving forces of dispersal evolution. Ecology and Evolution. 4(24), 4589–4597.
mla: Novak, Sebastian. “Habitat Heterogeneities versus Spatial Type Frequency Variances
as Driving Forces of Dispersal Evolution.” Ecology and Evolution, vol.
4, no. 24, Wiley-Blackwell, 2014, pp. 4589–97, doi:10.1002/ece3.1289.
short: S. Novak, Ecology and Evolution 4 (2014) 4589–4597.
corr_author: '1'
date_created: 2018-12-11T11:55:16Z
date_published: 2014-11-27T00:00:00Z
date_updated: 2026-07-29T11:27:43Z
day: '27'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1002/ece3.1289
ec_funded: 1
external_id:
isi:
- '000346736200003'
file:
- access_level: open_access
checksum: 9ab43db1b0fede7bfe560ed77e177b76
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:28Z
date_updated: 2020-07-14T12:45:25Z
file_id: '4946'
file_name: IST-2016-462-v1+1_Novak-2014-Ecology_and_Evolution.pdf
file_size: 118813
relation: main_file
file_date_updated: 2020-07-14T12:45:25Z
has_accepted_license: '1'
intvolume: ' 4'
isi: 1
issue: '24'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 4589 - 4597
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Ecology and Evolution
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5049'
pubrep_id: '462'
quality_controlled: '1'
related_material:
record:
- id: '1125'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Habitat heterogeneities versus spatial type frequency variances as driving
forces of dispersal evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 4
year: '2014'
...
---
_id: '1896'
abstract:
- lang: eng
text: 'Biopolymer length regulation is a complex process that involves a large number
of biological, chemical, and physical subprocesses acting simultaneously across
multiple spatial and temporal scales. An illustrative example important for genomic
stability is the length regulation of telomeres - nucleoprotein structures at
the ends of linear chromosomes consisting of tandemly repeated DNA sequences and
a specialized set of proteins. Maintenance of telomeres is often facilitated by
the enzyme telomerase but, particularly in telomerase-free systems, the maintenance
of chromosomal termini depends on alternative lengthening of telomeres (ALT) mechanisms
mediated by recombination. Various linear and circular DNA structures were identified
to participate in ALT, however, dynamics of the whole process is still poorly
understood. We propose a chemical kinetics model of ALT with kinetic rates systematically
derived from the biophysics of DNA diffusion and looping. The reaction system
is reduced to a coagulation-fragmentation system by quasi-steady-state approximation.
The detailed treatment of kinetic rates yields explicit formulas for expected
size distributions of telomeres that demonstrate the key role played by the J
factor, a quantitative measure of bending of polymers. The results are in agreement
with experimental data and point out interesting phenomena: an appearance of very
long telomeric circles if the total telomere density exceeds a critical value
(excess mass) and a nonlinear response of the telomere size distributions to the
amount of telomeric DNA in the system. The results can be of general importance
for understanding dynamics of telomeres in telomerase-independent systems as this
mode of telomere maintenance is similar to the situation in tumor cells lacking
telomerase activity. Furthermore, due to its universality, the model may also
serve as a prototype of an interaction between linear and circular DNA structures
in various settings.'
acknowledgement: The work was supported by the VEGA Grant No. 1/0459/13 (R.K. and
K.B.).
article_number: '032701'
article_processing_charge: No
arxiv: 1
author:
- first_name: Richard
full_name: Kollár, Richard
last_name: Kollár
- first_name: Katarína
full_name: Bod'ová, Katarína
id: 2BA24EA0-F248-11E8-B48F-1D18A9856A87
last_name: Bod'ová
orcid: 0000-0002-7214-0171
- first_name: Jozef
full_name: Nosek, Jozef
last_name: Nosek
- first_name: Ľubomír
full_name: Tomáška, Ľubomír
last_name: Tomáška
citation:
ama: Kollár R, Bodova K, Nosek J, Tomáška Ľ. Mathematical model of alternative mechanism
of telomere length maintenance. Physical Review E. 2014;89(3). doi:10.1103/PhysRevE.89.032701
apa: Kollár, R., Bodova, K., Nosek, J., & Tomáška, Ľ. (2014). Mathematical model
of alternative mechanism of telomere length maintenance. Physical Review E.
American Physical Society. https://doi.org/10.1103/PhysRevE.89.032701
chicago: Kollár, Richard, Katarina Bodova, Jozef Nosek, and Ľubomír Tomáška. “Mathematical
Model of Alternative Mechanism of Telomere Length Maintenance.” Physical Review
E. American Physical Society, 2014. https://doi.org/10.1103/PhysRevE.89.032701.
ieee: R. Kollár, K. Bodova, J. Nosek, and Ľ. Tomáška, “Mathematical model of alternative
mechanism of telomere length maintenance,” Physical Review E, vol. 89,
no. 3. American Physical Society, 2014.
ista: Kollár R, Bodova K, Nosek J, Tomáška Ľ. 2014. Mathematical model of alternative
mechanism of telomere length maintenance. Physical Review E. 89(3), 032701.
mla: Kollár, Richard, et al. “Mathematical Model of Alternative Mechanism of Telomere
Length Maintenance.” Physical Review E, vol. 89, no. 3, 032701, American
Physical Society, 2014, doi:10.1103/PhysRevE.89.032701.
short: R. Kollár, K. Bodova, J. Nosek, Ľ. Tomáška, Physical Review E 89 (2014).
date_created: 2018-12-11T11:54:35Z
date_published: 2014-03-04T00:00:00Z
date_updated: 2026-08-12T14:27:46Z
day: '04'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1103/PhysRevE.89.032701
external_id:
arxiv:
- '1402.0430'
isi:
- '000332274100002'
intvolume: ' 89'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1402.0430
month: '03'
oa: 1
oa_version: Submitted Version
publication: Physical Review E
publication_status: published
publisher: American Physical Society
publist_id: '5198'
scopus_import: '1'
status: public
title: Mathematical model of alternative mechanism of telomere length maintenance
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 89
year: '2014'
...
---
_id: '10899'
article_processing_charge: No
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Barton NH. Differentiation. In: Encyclopedia of Biodiversity. 2nd ed.
Elsevier; 2013:508-515. doi:10.1016/b978-0-12-384719-5.00031-9'
apa: Barton, N. H. (2013). Differentiation. In Encyclopedia of Biodiversity
(2nd ed., pp. 508–515). Elsevier. https://doi.org/10.1016/b978-0-12-384719-5.00031-9
chicago: Barton, Nicholas H. “Differentiation.” In Encyclopedia of Biodiversity,
2nd ed., 508–15. Elsevier, 2013. https://doi.org/10.1016/b978-0-12-384719-5.00031-9.
ieee: N. H. Barton, “Differentiation,” in Encyclopedia of Biodiversity, 2nd
ed., Elsevier, 2013, pp. 508–515.
ista: 'Barton NH. 2013.Differentiation. In: Encyclopedia of Biodiversity. , 508–515.'
mla: Barton, Nicholas H. “Differentiation.” Encyclopedia of Biodiversity,
2nd ed., Elsevier, 2013, pp. 508–15, doi:10.1016/b978-0-12-384719-5.00031-9.
short: N.H. Barton, in:, Encyclopedia of Biodiversity, 2nd ed., Elsevier, 2013,
pp. 508–515.
corr_author: '1'
date_created: 2022-03-21T07:46:22Z
date_published: 2013-01-01T00:00:00Z
date_updated: 2024-10-09T21:02:37Z
day: '01'
department:
- _id: NiBa
doi: 10.1016/b978-0-12-384719-5.00031-9
edition: '2'
keyword:
- Adaptive landscape
- Cline
- Coalescent process
- Gene flow
- Hybrid zone
- Local adaptation
- Natural selection
- Neutral theory
- Population structure
- Speciation
language:
- iso: eng
month: '01'
oa_version: None
page: 508-515
publication: Encyclopedia of Biodiversity
publication_identifier:
isbn:
- 978-0-12-384720-1
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Differentiation
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '2287'
abstract:
- lang: eng
text: Negative frequency-dependent selection should result in equal sex ratios in
large populations of dioecious flowering plants, but deviations from equality
are commonly reported. A variety of ecological and genetic factors can explain
biased sex ratios, although the mechanisms involved are not well understood. Most
dioecious species are long-lived and/or clonal complicating efforts to identify
stages during the life cycle when biases develop. We investigated the demographic
correlates of sex-ratio variation in two chromosome races of Rumex hastatulus,
an annual, wind-pollinated colonizer of open habitats from the southern USA. We
examined sex ratios in 46 populations and evaluated the hypothesis that the proximity
of males in the local mating environment, through its influence on gametophytic
selection, is the primary cause of female-biased sex ratios. Female-biased sex
ratios characterized most populations of R. hastatulus (mean sex ratio = 0.62),
with significant female bias in 89% of populations. Large, high-density populations
had the highest proportion of females, whereas smaller, low-density populations
had sex ratios closer to equality. Progeny sex ratios were more female biased
when males were in closer proximity to females, a result consistent with the gametophytic
selection hypothesis. Our results suggest that interactions between demographic
and genetic factors are probably the main cause of female-biased sex ratios in
R. hastatulus. The annual life cycle of this species may limit the scope for selection
against males and may account for the weaker degree of bias in comparison with
perennial Rumex species.
article_processing_charge: No
author:
- first_name: Melinda
full_name: Pickup, Melinda
id: 2C78037E-F248-11E8-B48F-1D18A9856A87
last_name: Pickup
orcid: 0000-0001-6118-0541
- first_name: Spencer
full_name: Barrett, Spencer
last_name: Barrett
citation:
ama: Pickup M, Barrett S. The influence of demography and local mating environment
on sex ratios in a wind-pollinated dioecious plant. Ecology and Evolution.
2013;3(3):629-639. doi:10.1002/ece3.465
apa: Pickup, M., & Barrett, S. (2013). The influence of demography and local
mating environment on sex ratios in a wind-pollinated dioecious plant. Ecology
and Evolution. Wiley-Blackwell. https://doi.org/10.1002/ece3.465
chicago: Pickup, Melinda, and Spencer Barrett. “The Influence of Demography and
Local Mating Environment on Sex Ratios in a Wind-Pollinated Dioecious Plant.”
Ecology and Evolution. Wiley-Blackwell, 2013. https://doi.org/10.1002/ece3.465.
ieee: M. Pickup and S. Barrett, “The influence of demography and local mating environment
on sex ratios in a wind-pollinated dioecious plant,” Ecology and Evolution,
vol. 3, no. 3. Wiley-Blackwell, pp. 629–639, 2013.
ista: Pickup M, Barrett S. 2013. The influence of demography and local mating environment
on sex ratios in a wind-pollinated dioecious plant. Ecology and Evolution. 3(3),
629–639.
mla: Pickup, Melinda, and Spencer Barrett. “The Influence of Demography and Local
Mating Environment on Sex Ratios in a Wind-Pollinated Dioecious Plant.” Ecology
and Evolution, vol. 3, no. 3, Wiley-Blackwell, 2013, pp. 629–39, doi:10.1002/ece3.465.
short: M. Pickup, S. Barrett, Ecology and Evolution 3 (2013) 629–639.
corr_author: '1'
date_created: 2018-12-11T11:56:47Z
date_published: 2013-03-01T00:00:00Z
date_updated: 2025-09-29T14:23:14Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1002/ece3.465
external_id:
isi:
- '000316124100015'
file:
- access_level: open_access
checksum: b5531bab4c0dec396bf5c8497fe178bf
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:35Z
date_updated: 2020-07-14T12:45:37Z
file_id: '5290'
file_name: IST-2016-416-v1+1_Pickup_et_al-2013-Ecology_and_Evolution.pdf
file_size: 626949
relation: main_file
file_date_updated: 2020-07-14T12:45:37Z
has_accepted_license: '1'
intvolume: ' 3'
isi: 1
issue: '3'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 629 - 639
publication: Ecology and Evolution
publication_status: published
publisher: Wiley-Blackwell
publist_id: '4644'
pubrep_id: '416'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The influence of demography and local mating environment on sex ratios in a
wind-pollinated dioecious plant
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 3
year: '2013'
...
---
_id: '2473'
abstract:
- lang: eng
text: 'When a mutation with selective advantage s spreads through a panmictic population,
it may cause two lineages at a linked locus to coalesce; the probability of coalescence
is exp(−2rT), where T∼log(2Ns)/s is the time to fixation, N is the number of haploid
individuals, and r is the recombination rate. Population structure delays fixation,
and so weakens the effect of a selective sweep. However, favourable alleles spread
through a spatially continuous population behind a narrow wavefront; ancestral
lineages are confined at the tip of this front, and so coalesce rapidly. In extremely
dense populations, coalescence is dominated by rare fluctuations ahead of the
front. However, we show that for moderate densities, a simple quasi-deterministic
approximation applies: the rate of coalescence within the front is λ∼2g(η)/(ρℓ),
where ρ is the population density and is the characteristic scale of the wavefront;
g(η) depends only on the strength of random drift, . The net effect of a sweep
on coalescence also depends crucially on whether two lineages are ever both within
the wavefront at the same time: even in the extreme case when coalescence within
the front is instantaneous, the net rate of coalescence may be lower than in a
single panmictic population. Sweeps can also have a substantial impact on the
rate of gene flow. A single lineage will jump to a new location when it is hit
by a sweep, with mean square displacement ; this can be substantial if the species’
range, L, is large, even if the species-wide rate of sweeps per map length, Λ/R,
is small. This effect is half as strong in two dimensions. In contrast, the rate
of coalescence between lineages, at random locations in space and on the genetic
map, is proportional to (c/L)(Λ/R), where c is the wavespeed: thus, on average,
one-dimensional structure is likely to reduce coalescence due to sweeps, relative
to panmixis. In two dimensions, genes must move along the front before they can
coalesce; this process is rapid, being dominated by rare fluctuations. This leads
to a dramatically higher rate of coalescence within the wavefront than if lineages
simply diffused along the front. Nevertheless, the net rate of coalescence due
to a sweep through a two-dimensional population is likely to be lower than it
would be with panmixis.'
article_processing_charge: No
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Alison
full_name: Etheridge, Alison
last_name: Etheridge
- first_name: Jerome
full_name: Kelleher, Jerome
last_name: Kelleher
- first_name: Amandine
full_name: Véber, Amandine
last_name: Véber
citation:
ama: Barton NH, Etheridge A, Kelleher J, Véber A. Genetic hitch-hiking in spatially
extended populations. Theoretical Population Biology. 2013;87(8):75-89.
doi:10.1016/j.tpb.2012.12.001
apa: Barton, N. H., Etheridge, A., Kelleher, J., & Véber, A. (2013). Genetic
hitch-hiking in spatially extended populations. Theoretical Population Biology.
Elsevier. https://doi.org/10.1016/j.tpb.2012.12.001
chicago: Barton, Nicholas H, Alison Etheridge, Jerome Kelleher, and Amandine Véber.
“Genetic Hitch-Hiking in Spatially Extended Populations.” Theoretical Population
Biology. Elsevier, 2013. https://doi.org/10.1016/j.tpb.2012.12.001.
ieee: N. H. Barton, A. Etheridge, J. Kelleher, and A. Véber, “Genetic hitch-hiking
in spatially extended populations,” Theoretical Population Biology, vol.
87, no. 8. Elsevier, pp. 75–89, 2013.
ista: Barton NH, Etheridge A, Kelleher J, Véber A. 2013. Genetic hitch-hiking in
spatially extended populations. Theoretical Population Biology. 87(8), 75–89.
mla: Barton, Nicholas H., et al. “Genetic Hitch-Hiking in Spatially Extended Populations.”
Theoretical Population Biology, vol. 87, no. 8, Elsevier, 2013, pp. 75–89,
doi:10.1016/j.tpb.2012.12.001.
short: N.H. Barton, A. Etheridge, J. Kelleher, A. Véber, Theoretical Population
Biology 87 (2013) 75–89.
corr_author: '1'
date_created: 2018-12-11T11:57:52Z
date_published: 2013-01-03T00:00:00Z
date_updated: 2025-09-29T14:10:28Z
day: '03'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1016/j.tpb.2012.12.001
ec_funded: 1
external_id:
isi:
- '000322688800008'
file:
- access_level: open_access
checksum: 4274ec1f433b838a7d5b941cc9684ca7
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:18:54Z
date_updated: 2020-07-14T12:45:41Z
file_id: '5376'
file_name: IST-2013-118-v1+1_bartonetalRevision.pdf
file_size: 1706282
relation: main_file
file_date_updated: 2020-07-14T12:45:41Z
has_accepted_license: '1'
intvolume: ' 87'
isi: 1
issue: '8'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 75 - 89
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Theoretical Population Biology
publication_status: published
publisher: Elsevier
publist_id: '4428'
pubrep_id: '118'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Genetic hitch-hiking in spatially extended populations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 87
year: '2013'
...
---
_id: '2718'
abstract:
- lang: eng
text: Even though both population and quantitative genetics, and evolutionary computation,
deal with the same questions, they have developed largely independently of each
other. I review key results from each field, emphasising those that apply independently
of the (usually unknown) relation between genotype and phenotype. The infinitesimal
model provides a simple framework for predicting the response of complex traits
to selection, which in biology has proved remarkably successful. This allows one
to choose the schedule of population sizes and selection intensities that will
maximise the response to selection, given that the total number of individuals
realised, C = ∑t Nt, is constrained. This argument shows that for an additive
trait (i.e., determined by the sum of effects of the genes), the optimum population
size and the maximum possible response (i.e., the total change in trait mean)
are both proportional to √C.
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
citation:
ama: 'Barton NH, Paixao T. Can quantitative and population genetics help us understand
evolutionary computation? In: Proceedings of the 15th Annual Conference on
Genetic and Evolutionary Computation. ACM; 2013:1573-1580. doi:10.1145/2463372.2463568'
apa: 'Barton, N. H., & Paixao, T. (2013). Can quantitative and population genetics
help us understand evolutionary computation? In Proceedings of the 15th annual
conference on Genetic and evolutionary computation (pp. 1573–1580). Amsterdam,
Netherlands: ACM. https://doi.org/10.1145/2463372.2463568'
chicago: Barton, Nicholas H, and Tiago Paixao. “Can Quantitative and Population
Genetics Help Us Understand Evolutionary Computation?” In Proceedings of the
15th Annual Conference on Genetic and Evolutionary Computation, 1573–80. ACM,
2013. https://doi.org/10.1145/2463372.2463568.
ieee: N. H. Barton and T. Paixao, “Can quantitative and population genetics help
us understand evolutionary computation?,” in Proceedings of the 15th annual
conference on Genetic and evolutionary computation, Amsterdam, Netherlands,
2013, pp. 1573–1580.
ista: 'Barton NH, Paixao T. 2013. Can quantitative and population genetics help
us understand evolutionary computation? Proceedings of the 15th annual conference
on Genetic and evolutionary computation. GECCO: Genetic and evolutionary computation
conference, 1573–1580.'
mla: Barton, Nicholas H., and Tiago Paixao. “Can Quantitative and Population Genetics
Help Us Understand Evolutionary Computation?” Proceedings of the 15th Annual
Conference on Genetic and Evolutionary Computation, ACM, 2013, pp. 1573–80,
doi:10.1145/2463372.2463568.
short: N.H. Barton, T. Paixao, in:, Proceedings of the 15th Annual Conference on
Genetic and Evolutionary Computation, ACM, 2013, pp. 1573–1580.
conference:
end_date: 2013-07-10
location: Amsterdam, Netherlands
name: 'GECCO: Genetic and evolutionary computation conference'
start_date: 2013-07-06
corr_author: '1'
date_created: 2018-12-11T11:59:14Z
date_published: 2013-07-01T00:00:00Z
date_updated: 2024-10-09T20:55:12Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
- _id: CaGu
doi: 10.1145/2463372.2463568
ec_funded: 1
file:
- access_level: open_access
checksum: 9d9be9090ce5c20766e0eb076ace5b98
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:38Z
date_updated: 2020-07-14T12:45:45Z
file_id: '5159'
file_name: IST-2016-564-v1+1_NickGECCO_2013_1_-1.pdf
file_size: 475844
relation: main_file
file_date_updated: 2020-07-14T12:45:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 1573 - 1580
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Proceedings of the 15th annual conference on Genetic and evolutionary
computation
publication_status: published
publisher: ACM
publist_id: '4174'
pubrep_id: '564'
quality_controlled: '1'
scopus_import: 1
status: public
title: Can quantitative and population genetics help us understand evolutionary computation?
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '2719'
abstract:
- lang: eng
text: Prediction of the evolutionary process is a long standing problem both in
the theory of evolutionary biology and evolutionary computation (EC). It has long
been realized that heritable variation is crucial to both the response to selection
and the success of genetic algorithms. However, not all variation contributes
in the same way to the response. Quantitative genetics has developed a large body
of work trying to estimate and understand how different components of the variance
in fitness in the population contribute to the response to selection. We illustrate
how to apply some concepts of quantitative genetics to the analysis of genetic
algorithms. In particular, we derive estimates for the short term prediction of
the response to selection and we use variance decomposition to gain insight on
local aspects of the landscape. Finally, we propose a new population based genetic
algorithm that uses these methods to improve its operation.
author:
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Paixao T, Barton NH. A variance decomposition approach to the analysis of
genetic algorithms. In: Proceedings of the 15th Annual Conference on Genetic
and Evolutionary Computation. ACM; 2013:845-852. doi:10.1145/2463372.2463470'
apa: 'Paixao, T., & Barton, N. H. (2013). A variance decomposition approach
to the analysis of genetic algorithms. In Proceedings of the 15th annual conference
on Genetic and evolutionary computation (pp. 845–852). Amsterdam, Netherlands:
ACM. https://doi.org/10.1145/2463372.2463470'
chicago: Paixao, Tiago, and Nicholas H Barton. “A Variance Decomposition Approach
to the Analysis of Genetic Algorithms.” In Proceedings of the 15th Annual Conference
on Genetic and Evolutionary Computation, 845–52. ACM, 2013. https://doi.org/10.1145/2463372.2463470.
ieee: T. Paixao and N. H. Barton, “A variance decomposition approach to the analysis
of genetic algorithms,” in Proceedings of the 15th annual conference on Genetic
and evolutionary computation, Amsterdam, Netherlands, 2013, pp. 845–852.
ista: 'Paixao T, Barton NH. 2013. A variance decomposition approach to the analysis
of genetic algorithms. Proceedings of the 15th annual conference on Genetic and
evolutionary computation. GECCO: Genetic and evolutionary computation conference,
845–852.'
mla: Paixao, Tiago, and Nicholas H. Barton. “A Variance Decomposition Approach to
the Analysis of Genetic Algorithms.” Proceedings of the 15th Annual Conference
on Genetic and Evolutionary Computation, ACM, 2013, pp. 845–52, doi:10.1145/2463372.2463470.
short: T. Paixao, N.H. Barton, in:, Proceedings of the 15th Annual Conference on
Genetic and Evolutionary Computation, ACM, 2013, pp. 845–852.
conference:
end_date: 2013-07-10
location: Amsterdam, Netherlands
name: 'GECCO: Genetic and evolutionary computation conference'
start_date: 2013-07-06
corr_author: '1'
date_created: 2018-12-11T11:59:15Z
date_published: 2013-07-01T00:00:00Z
date_updated: 2024-10-09T20:55:12Z
day: '01'
department:
- _id: NiBa
- _id: CaGu
doi: 10.1145/2463372.2463470
ec_funded: 1
language:
- iso: eng
month: '07'
oa_version: None
page: 845 - 852
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Proceedings of the 15th annual conference on Genetic and evolutionary
computation
publication_status: published
publisher: ACM
publist_id: '4173'
quality_controlled: '1'
scopus_import: 1
status: public
title: A variance decomposition approach to the analysis of genetic algorithms
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '2720'
abstract:
- lang: eng
text: 'Knowledge of the rate and fitness effects of mutations is essential for understanding
the process of evolution. Mutations are inherently difficult to study because
they are rare and are frequently eliminated by natural selection. In the ciliate
Tetrahymena thermophila, mutations can accumulate in the germline genome without
being exposed to selection. We have conducted a mutation accumulation (MA) experiment
in this species. Assuming that all mutations are deleterious and have the same
effect, we estimate that the deleterious mutation rate per haploid germline genome
per generation is U = 0.0047 (95% credible interval: 0.0015, 0.0125), and that
germline mutations decrease fitness by s = 11% when expressed in a homozygous
state (95% CI: 4.4%, 27%). We also estimate that deleterious mutations are partially
recessive on average (h = 0.26; 95% CI: –0.022, 0.62) and that the rate of lethal
mutations is <10% of the deleterious mutation rate. Comparisons between the
observed evolutionary responses in the germline and somatic genomes and the results
from individual-based simulations of MA suggest that the two genomes have similar
mutational parameters. These are the first estimates of the deleterious mutation
rate and fitness effects from the eukaryotic supergroup Chromalveolata and are
within the range of those of other eukaryotes.'
article_processing_charge: No
author:
- first_name: Hongan
full_name: Long, Hongan
last_name: Long
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
- first_name: Ricardo
full_name: Azevedo, Ricardo
last_name: Azevedo
- first_name: Rebecca
full_name: Zufall, Rebecca
last_name: Zufall
citation:
ama: Long H, Paixao T, Azevedo R, Zufall R. Accumulation of spontaneous mutations
in the ciliate Tetrahymena thermophila. Genetics. 2013;195(2):527-540.
doi:10.1534/genetics.113.153536
apa: Long, H., Paixao, T., Azevedo, R., & Zufall, R. (2013). Accumulation of
spontaneous mutations in the ciliate Tetrahymena thermophila. Genetics.
Genetics Society of America. https://doi.org/10.1534/genetics.113.153536
chicago: Long, Hongan, Tiago Paixao, Ricardo Azevedo, and Rebecca Zufall. “Accumulation
of Spontaneous Mutations in the Ciliate Tetrahymena Thermophila.” Genetics.
Genetics Society of America, 2013. https://doi.org/10.1534/genetics.113.153536.
ieee: H. Long, T. Paixao, R. Azevedo, and R. Zufall, “Accumulation of spontaneous
mutations in the ciliate Tetrahymena thermophila,” Genetics, vol. 195,
no. 2. Genetics Society of America, pp. 527–540, 2013.
ista: Long H, Paixao T, Azevedo R, Zufall R. 2013. Accumulation of spontaneous mutations
in the ciliate Tetrahymena thermophila. Genetics. 195(2), 527–540.
mla: Long, Hongan, et al. “Accumulation of Spontaneous Mutations in the Ciliate
Tetrahymena Thermophila.” Genetics, vol. 195, no. 2, Genetics Society of
America, 2013, pp. 527–40, doi:10.1534/genetics.113.153536.
short: H. Long, T. Paixao, R. Azevedo, R. Zufall, Genetics 195 (2013) 527–540.
date_created: 2018-12-11T11:59:15Z
date_published: 2013-10-01T00:00:00Z
date_updated: 2025-09-29T14:08:19Z
day: '01'
department:
- _id: NiBa
- _id: CaGu
doi: 10.1534/genetics.113.153536
ec_funded: 1
external_id:
isi:
- '000325286200020'
pmid:
- '23934880'
intvolume: ' 195'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3781978/
month: '10'
oa: 1
oa_version: Submitted Version
page: 527-540
pmid: 1
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '4172'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Accumulation of spontaneous mutations in the ciliate Tetrahymena thermophila
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 195
year: '2013'
...
---
_id: '2817'
abstract:
- lang: eng
text: The basic idea of evolutionary game theory is that payoff determines reproductive
rate. Successful individuals have a higher payoff and produce more offspring.
But in evolutionary and ecological situations there is not only reproductive rate
but also carrying capacity. Individuals may differ in their exposure to density
limiting effects. Here we explore an alternative approach to evolutionary game
theory by assuming that the payoff from the game determines the carrying capacity
of individual phenotypes. Successful strategies are less affected by density limitation
(crowding) and reach higher equilibrium abundance. We demonstrate similarities
and differences between our framework and the standard replicator equation. Our
equation is defined on the positive orthant, instead of the simplex, but has the
same equilibrium points as the replicator equation. Linear stability analysis
produces the classical conditions for asymptotic stability of pure strategies,
but the stability properties of internal equilibria can differ in the two frameworks.
For example, in a two-strategy game with an internal equilibrium that is always
stable under the replicator equation, the corresponding equilibrium can be unstable
in the new framework resulting in a limit cycle.
article_processing_charge: No
author:
- first_name: Sebastian
full_name: Novak, Sebastian
id: 461468AE-F248-11E8-B48F-1D18A9856A87
last_name: Novak
orcid: 0000-0002-2519-824X
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: Novak S, Chatterjee K, Nowak M. Density games. Journal of Theoretical Biology.
2013;334:26-34. doi:10.1016/j.jtbi.2013.05.029
apa: Novak, S., Chatterjee, K., & Nowak, M. (2013). Density games. Journal
of Theoretical Biology. Elsevier. https://doi.org/10.1016/j.jtbi.2013.05.029
chicago: Novak, Sebastian, Krishnendu Chatterjee, and Martin Nowak. “Density Games.”
Journal of Theoretical Biology. Elsevier, 2013. https://doi.org/10.1016/j.jtbi.2013.05.029.
ieee: S. Novak, K. Chatterjee, and M. Nowak, “Density games,” Journal of Theoretical
Biology, vol. 334. Elsevier, pp. 26–34, 2013.
ista: Novak S, Chatterjee K, Nowak M. 2013. Density games. Journal of Theoretical
Biology. 334, 26–34.
mla: Novak, Sebastian, et al. “Density Games.” Journal of Theoretical Biology,
vol. 334, Elsevier, 2013, pp. 26–34, doi:10.1016/j.jtbi.2013.05.029.
short: S. Novak, K. Chatterjee, M. Nowak, Journal of Theoretical Biology 334 (2013)
26–34.
corr_author: '1'
date_created: 2018-12-11T11:59:45Z
date_published: 2013-10-07T00:00:00Z
date_updated: 2025-09-29T13:59:11Z
day: '07'
ddc:
- '000'
department:
- _id: NiBa
- _id: KrCh
doi: 10.1016/j.jtbi.2013.05.029
ec_funded: 1
external_id:
isi:
- '000323629500003'
file:
- access_level: open_access
checksum: 3c29059ab03a4b8f97a07646b817ddbb
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:54Z
date_updated: 2020-07-14T12:45:49Z
file_id: '5110'
file_name: IST-2016-400-v1+1_1-s2.0-S0022519313002609-main.pdf
file_size: 834604
relation: main_file
file_date_updated: 2020-07-14T12:45:49Z
has_accepted_license: '1'
intvolume: ' 334'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 26 - 34
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication: Journal of Theoretical Biology
publication_status: published
publisher: Elsevier
publist_id: '3984'
pubrep_id: '400'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Density games
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 334
year: '2013'
...
---
_id: '2823'
abstract:
- lang: eng
text: The primary goal of restoration is to create self-sustaining ecological communities
that are resilient to periodic disturbance. Currently, little is known about how
restored communities respond to disturbance events such as fire and how this response
compares to remnant vegetation. Following the 2003 fires in south-eastern Australia
we examined the post-fire response of revegetation plantings and compared this
to remnant vegetation. Ten burnt and 10 unburnt (control) sites were assessed
for each of three types of vegetation (direct seeding revegetation, revegetation
using nursery seedlings (tubestock) and remnant woodland). Sixty sampling sites
were surveyed 6months after fire to quantify the initial survival of mid- and
overstorey plant species in each type of vegetation. Three and 5years after fire
all sites were resurveyed to assess vegetation structure, species diversity and
vigour, as well as indicators of soil function. Overall, revegetation showed high
(>60%) post-fire survival, but this varied among species depending on regeneration
strategy (obligate seeder or resprouter). The native ground cover, mid- and overstorey
in both types of plantings showed rapid recovery of vegetation structure and cover
within 3years of fire. This recovery was similar to the burnt remnant woodlands.
Non-native (exotic) ground cover initially increased after fire, but was no different
in burnt and unburnt sites 5years after fire. Fire had no effect on species richness,
but burnt direct seeding sites had reduced species diversity (Simpson's Diversity
Index) while diversity was higher in burnt remnant woodlands. Indices of soil
function in all types of vegetation had recovered to levels found in unburnt sites
5years after fire. These results indicate that even young revegetation (stands
<10years old) showed substantial recovery from disturbance by fire. This suggests
that revegetation can provide an important basis for restoring woodland communities
in the fire-prone Australian environment.
article_processing_charge: No
author:
- first_name: Melinda
full_name: Pickup, Melinda
id: 2C78037E-F248-11E8-B48F-1D18A9856A87
last_name: Pickup
orcid: 0000-0001-6118-0541
- first_name: Susie
full_name: Wilson, Susie
last_name: Wilson
- first_name: David
full_name: Freudenberger, David
last_name: Freudenberger
- first_name: Nick
full_name: Nicholls, Nick
last_name: Nicholls
- first_name: Lori
full_name: Gould, Lori
last_name: Gould
- first_name: Sarah
full_name: Hnatiuk, Sarah
last_name: Hnatiuk
- first_name: Jeni
full_name: Delandre, Jeni
last_name: Delandre
citation:
ama: Pickup M, Wilson S, Freudenberger D, et al. Post-fire recovery of revegetated
woodland communities in south-eastern Australia. Austral Ecology. 2013;38(3):300-312.
doi:10.1111/j.1442-9993.2012.02404.x
apa: Pickup, M., Wilson, S., Freudenberger, D., Nicholls, N., Gould, L., Hnatiuk,
S., & Delandre, J. (2013). Post-fire recovery of revegetated woodland communities
in south-eastern Australia. Austral Ecology. Wiley-Blackwell. https://doi.org/10.1111/j.1442-9993.2012.02404.x
chicago: Pickup, Melinda, Susie Wilson, David Freudenberger, Nick Nicholls, Lori
Gould, Sarah Hnatiuk, and Jeni Delandre. “Post-Fire Recovery of Revegetated Woodland
Communities in South-Eastern Australia.” Austral Ecology. Wiley-Blackwell,
2013. https://doi.org/10.1111/j.1442-9993.2012.02404.x.
ieee: M. Pickup et al., “Post-fire recovery of revegetated woodland communities
in south-eastern Australia,” Austral Ecology, vol. 38, no. 3. Wiley-Blackwell,
pp. 300–312, 2013.
ista: Pickup M, Wilson S, Freudenberger D, Nicholls N, Gould L, Hnatiuk S, Delandre
J. 2013. Post-fire recovery of revegetated woodland communities in south-eastern
Australia. Austral Ecology. 38(3), 300–312.
mla: Pickup, Melinda, et al. “Post-Fire Recovery of Revegetated Woodland Communities
in South-Eastern Australia.” Austral Ecology, vol. 38, no. 3, Wiley-Blackwell,
2013, pp. 300–12, doi:10.1111/j.1442-9993.2012.02404.x.
short: M. Pickup, S. Wilson, D. Freudenberger, N. Nicholls, L. Gould, S. Hnatiuk,
J. Delandre, Austral Ecology 38 (2013) 300–312.
date_created: 2018-12-11T11:59:47Z
date_published: 2013-05-01T00:00:00Z
date_updated: 2025-09-29T13:56:47Z
day: '01'
department:
- _id: NiBa
doi: 10.1111/j.1442-9993.2012.02404.x
external_id:
isi:
- '000318188200007'
intvolume: ' 38'
isi: 1
issue: '3'
language:
- iso: eng
month: '05'
oa_version: None
page: 300 - 312
publication: Austral Ecology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3978'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Post-fire recovery of revegetated woodland communities in south-eastern Australia
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 38
year: '2013'
...
---
_id: '2842'
abstract:
- lang: eng
text: 'We outline two approaches to inference of neighbourhood size, N, and dispersal
rate, σ2, based on either allele frequencies or on the lengths of sequence blocks
that are shared between genomes. Over intermediate timescales (10-100 generations,
say), populations that live in two dimensions approach a quasi-equilibrium that
is independent of both their local structure and their deeper history. Over such
scales, the standardised covariance of allele frequencies (i.e. pairwise FS T)
falls with the logarithm of distance, and depends only on neighbourhood size,
N, and a ''local scale'', κ; the rate of gene flow, σ2, cannot be inferred. We
show how spatial correlations can be accounted for, assuming a Gaussian distribution
of allele frequencies, giving maximum likelihood estimates of N and κ. Alternatively,
inferences can be based on the distribution of the lengths of sequence that are
identical between blocks of genomes: long blocks (>0.1 cM, say) tell us about
intermediate timescales, over which we assume a quasi-equilibrium. For large neighbourhood
size, the distribution of long blocks is given directly by the classical Wright-Malécot
formula; this relationship can be used to infer both N and σ2. With small neighbourhood
size, there is an appreciable chance that recombinant lineages will coalesce back
before escaping into the distant past. For this case, we show that if genomes
are sampled from some distance apart, then the distribution of lengths of blocks
that are identical in state is geometric, with a mean that depends on N and σ2.'
article_processing_charge: No
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Alison
full_name: Etheridge, Alison
last_name: Etheridge
- first_name: Jerome
full_name: Kelleher, Jerome
last_name: Kelleher
- first_name: Amandine
full_name: Véber, Amandine
last_name: Véber
citation:
ama: 'Barton NH, Etheridge A, Kelleher J, Véber A. Inference in two dimensions:
Allele frequencies versus lengths of shared sequence blocks. Theoretical Population
Biology. 2013;87(1):105-119. doi:10.1016/j.tpb.2013.03.001'
apa: 'Barton, N. H., Etheridge, A., Kelleher, J., & Véber, A. (2013). Inference
in two dimensions: Allele frequencies versus lengths of shared sequence blocks.
Theoretical Population Biology. Elsevier. https://doi.org/10.1016/j.tpb.2013.03.001'
chicago: 'Barton, Nicholas H, Alison Etheridge, Jerome Kelleher, and Amandine Véber.
“Inference in Two Dimensions: Allele Frequencies versus Lengths of Shared Sequence
Blocks.” Theoretical Population Biology. Elsevier, 2013. https://doi.org/10.1016/j.tpb.2013.03.001.'
ieee: 'N. H. Barton, A. Etheridge, J. Kelleher, and A. Véber, “Inference in two
dimensions: Allele frequencies versus lengths of shared sequence blocks,” Theoretical
Population Biology, vol. 87, no. 1. Elsevier, pp. 105–119, 2013.'
ista: 'Barton NH, Etheridge A, Kelleher J, Véber A. 2013. Inference in two dimensions:
Allele frequencies versus lengths of shared sequence blocks. Theoretical Population
Biology. 87(1), 105–119.'
mla: 'Barton, Nicholas H., et al. “Inference in Two Dimensions: Allele Frequencies
versus Lengths of Shared Sequence Blocks.” Theoretical Population Biology,
vol. 87, no. 1, Elsevier, 2013, pp. 105–19, doi:10.1016/j.tpb.2013.03.001.'
short: N.H. Barton, A. Etheridge, J. Kelleher, A. Véber, Theoretical Population
Biology 87 (2013) 105–119.
date_created: 2018-12-11T11:59:53Z
date_published: 2013-08-01T00:00:00Z
date_updated: 2025-09-29T13:44:19Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1016/j.tpb.2013.03.001
ec_funded: 1
external_id:
isi:
- '000322688800010'
file:
- access_level: open_access
checksum: 9bf9d9a6fd03dd9df50906891f393bf8
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:33Z
date_updated: 2020-07-14T12:45:50Z
file_id: '5288'
file_name: IST-2016-558-v1+1_inference_revised3101NB.pdf
file_size: 1554712
relation: main_file
- access_level: open_access
checksum: 2bceddb76edacd0cd5fad73051e2a928
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:34Z
date_updated: 2020-07-14T12:45:50Z
file_id: '5289'
file_name: IST-2016-558-v1+2_inference_revised3101NBApp.pdf
file_size: 822964
relation: main_file
file_date_updated: 2020-07-14T12:45:50Z
has_accepted_license: '1'
intvolume: ' 87'
isi: 1
issue: '1'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
page: 105 - 119
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Theoretical Population Biology
publication_status: published
publisher: Elsevier
publist_id: '3953'
pubrep_id: '558'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Inference in two dimensions: Allele frequencies versus lengths of shared sequence
blocks'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 87
year: '2013'
...