---
_id: '17207'
acknowledgement: "This research was funded by the Austrian Science Fund (FWF), project
  doi: 10.55776/P32896, Institutional Identifier: 501100002428, grant number: P32896
  and L.F. acknowledges the support of the NOMIS-ISTA Fellowship Program.\r\nWe would
  like to thank Nick Barton, Roger Butlin, Stuart Baird, Patrik Nosil, and Jason Sexton
  for their insightful comments on the earlier drafts, and to John Carchrae for his
  valuable contribution in refining phrasing and enhancing clarity. For open access
  purposes, the author has applied a CC BY public copyright license to any author-accepted
  manuscript version arising from this submission."
article_processing_charge: No
article_type: letter_note
author:
- first_name: Louise
  full_name: Fouqueau, Louise
  id: 1676e173-8143-11ed-8927-fe165216a93f
  last_name: Fouqueau
  orcid: 0000-0003-0371-9339
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: 'Fouqueau L, Polechova J. Eco-evolutionary dynamics in changing environments:
    Integrating theory with data. <i>Journal of evolutionary biology</i>. 2024;37(6):579-587.
    doi:<a href="https://doi.org/10.1093/jeb/voae067">10.1093/jeb/voae067</a>'
  apa: 'Fouqueau, L., &#38; Polechova, J. (2024). Eco-evolutionary dynamics in changing
    environments: Integrating theory with data. <i>Journal of Evolutionary Biology</i>.
    Oxford University Press. <a href="https://doi.org/10.1093/jeb/voae067">https://doi.org/10.1093/jeb/voae067</a>'
  chicago: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
    Environments: Integrating Theory with Data.” <i>Journal of Evolutionary Biology</i>.
    Oxford University Press, 2024. <a href="https://doi.org/10.1093/jeb/voae067">https://doi.org/10.1093/jeb/voae067</a>.'
  ieee: 'L. Fouqueau and J. Polechova, “Eco-evolutionary dynamics in changing environments:
    Integrating theory with data,” <i>Journal of evolutionary biology</i>, vol. 37,
    no. 6. Oxford University Press, pp. 579–587, 2024.'
  ista: 'Fouqueau L, Polechova J. 2024. Eco-evolutionary dynamics in changing environments:
    Integrating theory with data. Journal of evolutionary biology. 37(6), 579–587.'
  mla: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
    Environments: Integrating Theory with Data.” <i>Journal of Evolutionary Biology</i>,
    vol. 37, no. 6, Oxford University Press, 2024, pp. 579–87, doi:<a href="https://doi.org/10.1093/jeb/voae067">10.1093/jeb/voae067</a>.'
  short: L. Fouqueau, J. Polechova, Journal of Evolutionary Biology 37 (2024) 579–587.
date_created: 2024-07-07T22:01:04Z
date_published: 2024-06-28T00:00:00Z
date_updated: 2025-09-08T08:08:00Z
day: '28'
department:
- _id: NiBa
doi: 10.1093/jeb/voae067
external_id:
  isi:
  - '001258359900001'
  pmid:
  - '38941551'
intvolume: '        37'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1093/jeb/voae067
month: '06'
oa: 1
oa_version: Published Version
page: 579-587
pmid: 1
project:
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
  grant_number: P32896
  name: Causes and consequences of population fragmentation
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
  name: NOMIS Fellowship Program
publication: Journal of evolutionary biology
publication_identifier:
  eissn:
  - 1420-9101
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Eco-evolutionary dynamics in changing environments: Integrating theory with
  data'
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: 37
year: '2024'
...
---
_id: '9816'
abstract:
- lang: eng
  text: "Aims: Mass antigen testing programs have been challenged because of an alleged
    insufficient specificity, leading to a large number of false positives. The objective
    of this study is to derive a lower bound of the specificity of the SD Biosensor
    Standard Q Ag-Test in large scale practical use.\r\nMethods: Based on county data
    from the nationwide tests for SARS-CoV-2 in Slovakia between 31.10.–1.11. 2020
    we calculate a lower confidence bound for the specificity. As positive test results
    were not systematically verified by PCR tests, we base the lower bound on a worst
    case assumption, assuming all positives to be false positives.\r\nResults: 3,625,332
    persons from 79 counties were tested. The lowest positivity rate was observed
    in the county of Rožňava where 100 out of 34307 (0.29%) tests were positive. This
    implies a test specificity of at least 99.6% (97.5% one-sided lower confidence
    bound, adjusted for multiplicity).\r\nConclusion: The obtained lower bound suggests
    a higher specificity compared to earlier studies in spite of the underlying worst
    case assumption and the application in a mass testing setting. The actual specificity
    is expected to exceed 99.6% if the prevalence in the respective regions was non-negligible
    at the time of testing. To our knowledge, this estimate constitutes the first
    bound obtained from large scale practical use of an antigen test."
acknowledgement: We would like to thank Alfred Uhl, Richard Kollár and Katarína Bod’ová
  for very helpful comments. We also thank Matej Mišík for discussion and information
  regarding the Slovak testing data and Ag-Test used.
article_number: e0255267
article_processing_charge: Yes
article_type: original
author:
- first_name: Michal
  full_name: Hledik, Michal
  id: 4171253A-F248-11E8-B48F-1D18A9856A87
  last_name: Hledik
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: Mathias
  full_name: Beiglböck, Mathias
  last_name: Beiglböck
- first_name: Anna Nele
  full_name: Herdina, Anna Nele
  last_name: Herdina
- first_name: Robert
  full_name: Strassl, Robert
  last_name: Strassl
- first_name: Martin
  full_name: Posch, Martin
  last_name: Posch
citation:
  ama: Hledik M, Polechova J, Beiglböck M, Herdina AN, Strassl R, Posch M. Analysis
    of the specificity of a COVID-19 antigen test in the Slovak mass testing program.
    <i>PLoS ONE</i>. 2021;16(7). doi:<a href="https://doi.org/10.1371/journal.pone.0255267">10.1371/journal.pone.0255267</a>
  apa: Hledik, M., Polechova, J., Beiglböck, M., Herdina, A. N., Strassl, R., &#38;
    Posch, M. (2021). Analysis of the specificity of a COVID-19 antigen test in the
    Slovak mass testing program. <i>PLoS ONE</i>. Public Library of Science. <a href="https://doi.org/10.1371/journal.pone.0255267">https://doi.org/10.1371/journal.pone.0255267</a>
  chicago: Hledik, Michal, Jitka Polechova, Mathias Beiglböck, Anna Nele Herdina,
    Robert Strassl, and Martin Posch. “Analysis of the Specificity of a COVID-19 Antigen
    Test in the Slovak Mass Testing Program.” <i>PLoS ONE</i>. Public Library of Science,
    2021. <a href="https://doi.org/10.1371/journal.pone.0255267">https://doi.org/10.1371/journal.pone.0255267</a>.
  ieee: M. Hledik, J. Polechova, M. Beiglböck, A. N. Herdina, R. Strassl, and M. Posch,
    “Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
    program,” <i>PLoS ONE</i>, vol. 16, no. 7. Public Library of Science, 2021.
  ista: Hledik M, Polechova J, Beiglböck M, Herdina AN, Strassl R, Posch M. 2021.
    Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
    program. PLoS ONE. 16(7), e0255267.
  mla: Hledik, Michal, et al. “Analysis of the Specificity of a COVID-19 Antigen Test
    in the Slovak Mass Testing Program.” <i>PLoS ONE</i>, vol. 16, no. 7, e0255267,
    Public Library of Science, 2021, doi:<a href="https://doi.org/10.1371/journal.pone.0255267">10.1371/journal.pone.0255267</a>.
  short: M. Hledik, J. Polechova, M. Beiglböck, A.N. Herdina, R. Strassl, M. Posch,
    PLoS ONE 16 (2021).
date_created: 2021-08-08T22:01:26Z
date_published: 2021-07-29T00:00:00Z
date_updated: 2023-08-10T14:26:32Z
day: '29'
ddc:
- '610'
department:
- _id: NiBa
doi: 10.1371/journal.pone.0255267
external_id:
  isi:
  - '000685248200095'
  pmid:
  - '34324553'
file:
- access_level: open_access
  checksum: ae4df60eb62f4491278588548d0c1f93
  content_type: application/pdf
  creator: asandaue
  date_created: 2021-08-09T11:52:14Z
  date_updated: 2021-08-09T11:52:14Z
  file_id: '9835'
  file_name: 2021_PLoSONE_Hledík.pdf
  file_size: 773921
  relation: main_file
  success: 1
file_date_updated: 2021-08-09T11:52:14Z
has_accepted_license: '1'
intvolume: '        16'
isi: 1
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS ONE
publication_identifier:
  eissn:
  - 1932-6203
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
  program
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 16
year: '2021'
...
---
_id: '9839'
abstract:
- lang: eng
  text: 'More than 100 years after Grigg’s influential analysis of species’ borders,
    the causes of limits to species’ ranges still represent a puzzle that has never
    been understood with clarity. The topic has become especially important recently
    as many scientists have become interested in the potential for species’ ranges
    to shift in response to climate change—and yet nearly all of those studies fail
    to recognise or incorporate evolutionary genetics in a way that relates to theoretical
    developments. I show that range margins can be understood based on just two measurable
    parameters: (i) the fitness cost of dispersal—a measure of environmental heterogeneity—and
    (ii) the strength of genetic drift, which reduces genetic diversity. Together,
    these two parameters define an ‘expansion threshold’: adaptation fails when genetic
    drift reduces genetic diversity below that required for adaptation to a heterogeneous
    environment. When the key parameters drop below this expansion threshold locally,
    a sharp range margin forms. When they drop below this threshold throughout the
    species’ range, adaptation collapses everywhere, resulting in either extinction
    or formation of a fragmented metapopulation. Because the effects of dispersal
    differ fundamentally with dimension, the second parameter—the strength of genetic
    drift—is qualitatively different compared to a linear habitat. In two-dimensional
    habitats, genetic drift becomes effectively independent of selection. It decreases
    with ‘neighbourhood size’—the number of individuals accessible by dispersal within
    one generation. Moreover, in contrast to earlier predictions, which neglected
    evolution of genetic variance and/or stochasticity in two dimensions, dispersal
    into small marginal populations aids adaptation. This is because the reduction
    of both genetic and demographic stochasticity has a stronger effect than the cost
    of dispersal through increased maladaptation. The expansion threshold thus provides
    a novel, theoretically justified, and testable prediction for formation of the
    range margin and collapse of the species’ range.'
article_processing_charge: No
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: 'Polechova J. Data from: Is the sky the limit? On the expansion threshold of
    a species’ range. 2019. doi:<a href="https://doi.org/10.5061/dryad.5vv37">10.5061/dryad.5vv37</a>'
  apa: 'Polechova, J. (2019). Data from: Is the sky the limit? On the expansion threshold
    of a species’ range. Dryad. <a href="https://doi.org/10.5061/dryad.5vv37">https://doi.org/10.5061/dryad.5vv37</a>'
  chicago: 'Polechova, Jitka. “Data from: Is the Sky the Limit? On the Expansion Threshold
    of a Species’ Range.” Dryad, 2019. <a href="https://doi.org/10.5061/dryad.5vv37">https://doi.org/10.5061/dryad.5vv37</a>.'
  ieee: 'J. Polechova, “Data from: Is the sky the limit? On the expansion threshold
    of a species’ range.” Dryad, 2019.'
  ista: 'Polechova J. 2019. Data from: Is the sky the limit? On the expansion threshold
    of a species’ range, Dryad, <a href="https://doi.org/10.5061/dryad.5vv37">10.5061/dryad.5vv37</a>.'
  mla: 'Polechova, Jitka. <i>Data from: Is the Sky the Limit? On the Expansion Threshold
    of a Species’ Range</i>. Dryad, 2019, doi:<a href="https://doi.org/10.5061/dryad.5vv37">10.5061/dryad.5vv37</a>.'
  short: J. Polechova, (2019).
date_created: 2021-08-09T13:07:28Z
date_published: 2019-06-22T00:00:00Z
date_updated: 2025-07-10T11:52:26Z
day: '22'
department:
- _id: NiBa
doi: 10.5061/dryad.5vv37
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5061/dryad.5vv37
month: '06'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
  record:
  - id: '315'
    relation: used_in_publication
    status: public
status: public
title: 'Data from: Is the sky the limit? On the expansion threshold of a species''
  range'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2019'
...
---
_id: '315'
abstract:
- lang: eng
  text: 'More than 100 years after Grigg’s influential analysis of species’ borders,
    the causes of limits to species’ ranges still represent a puzzle that has never
    been understood with clarity. The topic has become especially important recently
    as many scientists have become interested in the potential for species’ ranges
    to shift in response to climate change—and yet nearly all of those studies fail
    to recognise or incorporate evolutionary genetics in a way that relates to theoretical
    developments. I show that range margins can be understood based on just two measurable
    parameters: (i) the fitness cost of dispersal—a measure of environmental heterogeneity—and
    (ii) the strength of genetic drift, which reduces genetic diversity. Together,
    these two parameters define an ‘expansion threshold’: adaptation fails when genetic
    drift reduces genetic diversity below that required for adaptation to a heterogeneous
    environment. When the key parameters drop below this expansion threshold locally,
    a sharp range margin forms. When they drop below this threshold throughout the
    species’ range, adaptation collapses everywhere, resulting in either extinction
    or formation of a fragmented metapopulation. Because the effects of dispersal
    differ fundamentally with dimension, the second parameter—the strength of genetic
    drift—is qualitatively different compared to a linear habitat. In two-dimensional
    habitats, genetic drift becomes effectively independent of selection. It decreases
    with ‘neighbourhood size’—the number of individuals accessible by dispersal within
    one generation. Moreover, in contrast to earlier predictions, which neglected
    evolution of genetic variance and/or stochasticity in two dimensions, dispersal
    into small marginal populations aids adaptation. This is because the reduction
    of both genetic and demographic stochasticity has a stronger effect than the cost
    of dispersal through increased maladaptation. The expansion threshold thus provides
    a novel, theoretically justified, and testable prediction for formation of the
    range margin and collapse of the species’ range.'
article_number: e2005372
article_processing_charge: No
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: Polechova J. Is the sky the limit? On the expansion threshold of a species’
    range. <i>PLoS Biology</i>. 2018;16(6). doi:<a href="https://doi.org/10.1371/journal.pbio.2005372">10.1371/journal.pbio.2005372</a>
  apa: Polechova, J. (2018). Is the sky the limit? On the expansion threshold of a
    species’ range. <i>PLoS Biology</i>. Public Library of Science. <a href="https://doi.org/10.1371/journal.pbio.2005372">https://doi.org/10.1371/journal.pbio.2005372</a>
  chicago: Polechova, Jitka. “Is the Sky the Limit? On the Expansion Threshold of
    a Species’ Range.” <i>PLoS Biology</i>. Public Library of Science, 2018. <a href="https://doi.org/10.1371/journal.pbio.2005372">https://doi.org/10.1371/journal.pbio.2005372</a>.
  ieee: J. Polechova, “Is the sky the limit? On the expansion threshold of a species’
    range,” <i>PLoS Biology</i>, vol. 16, no. 6. Public Library of Science, 2018.
  ista: Polechova J. 2018. Is the sky the limit? On the expansion threshold of a species’
    range. PLoS Biology. 16(6), e2005372.
  mla: Polechova, Jitka. “Is the Sky the Limit? On the Expansion Threshold of a Species’
    Range.” <i>PLoS Biology</i>, vol. 16, no. 6, e2005372, Public Library of Science,
    2018, doi:<a href="https://doi.org/10.1371/journal.pbio.2005372">10.1371/journal.pbio.2005372</a>.
  short: J. Polechova, PLoS Biology 16 (2018).
date_created: 2018-12-11T11:45:46Z
date_published: 2018-06-15T00:00:00Z
date_updated: 2025-07-10T11:52:27Z
day: '15'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1371/journal.pbio.2005372
file:
- access_level: open_access
  checksum: 908c52751bba30c55ed36789e5e4c84d
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  creator: dernst
  date_created: 2019-01-22T08:30:03Z
  date_updated: 2020-07-14T12:46:01Z
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  file_name: 2017_PLOS_Polechova.pdf
  file_size: 6968201
  relation: main_file
file_date_updated: 2020-07-14T12:46:01Z
has_accepted_license: '1'
intvolume: '        16'
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: PLoS Biology
publication_identifier:
  issn:
  - 1544-9173
publication_status: published
publisher: Public Library of Science
publist_id: '7550'
quality_controlled: '1'
related_material:
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  - id: '9839'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Is the sky the limit? On the expansion threshold of a species’ range
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2018'
...
---
_id: '1818'
abstract:
- lang: eng
  text: 'Why do species not adapt to ever-wider ranges of conditions, gradually expanding
    their ecological niche and geographic range? Gene flow across environments has
    two conflicting effects: although it increases genetic variation, which is a prerequisite
    for adaptation, gene flow may swamp adaptation to local conditions. In 1956, Haldane
    proposed that, when the environment varies across space, &quot;swamping&quot;
    by gene flow creates a positive feedback between low population size and maladaptation,
    leading to a sharp range margin. However, current deterministic theory shows that,
    when variance can evolve, there is no such limit. Using simple analytical tools
    and simulations, we show that genetic drift can generate a sharp margin to a species''
    range, by reducing genetic variance below the level needed for adaptation to spatially
    variable conditions. Aided by separation of ecological and evolutionary timescales,
    the identified effective dimensionless parameters reveal a simple threshold that
    predicts when adaptation at the range margin fails. Two observable parameters
    determine the threshold: (i) the effective environmental gradient, which can be
    measured by the loss of fitness due to dispersal to a different environment; and
    (ii) the efficacy of selection relative to genetic drift. The theory predicts
    sharp range margins even in the absence of abrupt changes in the environment.
    Furthermore, it implies that gradual worsening of conditions across a species''
    habitat may lead to a sudden range fragmentation, when adaptation to a wide span
    of conditions within a single species becomes impossible.'
article_processing_charge: No
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- 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: Polechova J, Barton NH. Limits to adaptation along environmental gradients.
    <i>PNAS</i>. 2015;112(20):6401-6406. doi:<a href="https://doi.org/10.1073/pnas.1421515112">10.1073/pnas.1421515112</a>
  apa: Polechova, J., &#38; Barton, N. H. (2015). Limits to adaptation along environmental
    gradients. <i>PNAS</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.1421515112">https://doi.org/10.1073/pnas.1421515112</a>
  chicago: Polechova, Jitka, and Nicholas H Barton. “Limits to Adaptation along Environmental
    Gradients.” <i>PNAS</i>. National Academy of Sciences, 2015. <a href="https://doi.org/10.1073/pnas.1421515112">https://doi.org/10.1073/pnas.1421515112</a>.
  ieee: J. Polechova and N. H. Barton, “Limits to adaptation along environmental gradients,”
    <i>PNAS</i>, vol. 112, no. 20. National Academy of Sciences, pp. 6401–6406, 2015.
  ista: Polechova J, Barton NH. 2015. Limits to adaptation along environmental gradients.
    PNAS. 112(20), 6401–6406.
  mla: Polechova, Jitka, and Nicholas H. Barton. “Limits to Adaptation along Environmental
    Gradients.” <i>PNAS</i>, vol. 112, no. 20, National Academy of Sciences, 2015,
    pp. 6401–06, doi:<a href="https://doi.org/10.1073/pnas.1421515112">10.1073/pnas.1421515112</a>.
  short: J. Polechova, N.H. Barton, PNAS 112 (2015) 6401–6406.
corr_author: '1'
date_created: 2018-12-11T11:54:11Z
date_published: 2015-05-19T00:00:00Z
date_updated: 2025-09-23T09:27:16Z
day: '19'
department:
- _id: NiBa
doi: 10.1073/pnas.1421515112
ec_funded: 1
external_id:
  isi:
  - '000354729500058'
  pmid:
  - '25941385'
intvolume: '       112'
isi: 1
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4443383/
month: '05'
oa: 1
oa_version: Submitted Version
page: 6401 - 6406
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: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '5288'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Limits to adaptation along environmental gradients
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 112
year: '2015'
...
---
_id: '3394'
abstract:
- lang: eng
  text: 'Random genetic drift shifts clines in space, alters their width, and distorts
    their shape. Such random fluctuations complicate inferences from cline width and
    position. Notably, the effect of genetic drift on the expected shape of the cline
    is opposite to the naive (but quite common) misinterpretation of classic results
    on the expected cline. While random drift on average broadens the overall cline
    in expected allele frequency, it narrows the width of any particular cline. The
    opposing effects arise because locally, drift drives alleles to fixation—but fluctuations
    in position widen the expected cline. The effect of genetic drift can be predicted
    from standardized variance in allele frequencies, averaged across the habitat:
    〈F〉. A cline maintained by spatially varying selection (step change) is expected
    to be narrower by a factor of  relative to the cline in the absence of drift.
    The expected cline is broader by the inverse of this factor. In a tension zone
    maintained by underdominance, the expected cline width is narrower by about 1
    – 〈F〉relative to the width in the absence of drift. Individual clines can differ
    substantially from the expectation, and we give quantitative predictions for the
    variance in cline position and width. The predictions apply to clines in almost
    one-dimensional circumstances such as hybrid zones in rivers, deep valleys, or
    along a coast line and give a guide to what patterns to expect in two dimensions.'
article_processing_charge: No
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- 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: Polechova J, Barton NH. Genetic drift widens the expected cline but narrows
    the expected cline width. <i>Genetics</i>. 2011;189(1):227-235. doi:<a href="https://doi.org/10.1534/genetics.111.129817">10.1534/genetics.111.129817</a>
  apa: Polechova, J., &#38; Barton, N. H. (2011). Genetic drift widens the expected
    cline but narrows the expected cline width. <i>Genetics</i>. Genetics Society
    of America. <a href="https://doi.org/10.1534/genetics.111.129817">https://doi.org/10.1534/genetics.111.129817</a>
  chicago: Polechova, Jitka, and Nicholas H Barton. “Genetic Drift Widens the Expected
    Cline but Narrows the Expected Cline Width.” <i>Genetics</i>. Genetics Society
    of America, 2011. <a href="https://doi.org/10.1534/genetics.111.129817">https://doi.org/10.1534/genetics.111.129817</a>.
  ieee: J. Polechova and N. H. Barton, “Genetic drift widens the expected cline but
    narrows the expected cline width,” <i>Genetics</i>, vol. 189, no. 1. Genetics
    Society of America, pp. 227–235, 2011.
  ista: Polechova J, Barton NH. 2011. Genetic drift widens the expected cline but
    narrows the expected cline width. Genetics. 189(1), 227–235.
  mla: Polechova, Jitka, and Nicholas H. Barton. “Genetic Drift Widens the Expected
    Cline but Narrows the Expected Cline Width.” <i>Genetics</i>, vol. 189, no. 1,
    Genetics Society of America, 2011, pp. 227–35, doi:<a href="https://doi.org/10.1534/genetics.111.129817">10.1534/genetics.111.129817</a>.
  short: J. Polechova, N.H. Barton, Genetics 189 (2011) 227–235.
corr_author: '1'
date_created: 2018-12-11T12:03:05Z
date_published: 2011-09-01T00:00:00Z
date_updated: 2025-09-30T08:42:59Z
day: '01'
department:
- _id: NiBa
doi: 10.1534/genetics.111.129817
ec_funded: 1
external_id:
  isi:
  - '000294721600018'
intvolume: '       189'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3176109/
month: '09'
oa: 1
oa_version: Submitted Version
page: 227 - 235
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: '3213'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Genetic drift widens the expected cline but narrows the expected cline width
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 189
year: '2011'
...
---
_id: '4134'
abstract:
- lang: eng
  text: 'All species are restricted in their distribution. Currently, ecological models
    can only explain such limits if patches vary in quality, leading to asymmetrical
    dispersal, or if genetic variation is too low at the margins for adaptation. However,
    population genetic models suggest that the increase in genetic variance resulting
    from dispersal should allow adaptation to almost any ecological gradient. Clearly
    therefore, these models miss something that prevents evolution in natural populations.
    We developed an individual-based simulation to explore stochastic effects in these
    models. At high carrying capacities, our simulations largely agree with deterministic
    predictions. However, when carrying capacity is low, the population fails to establish
    for a wide range of parameter values where adaptation was expected from previous
    models. Stochastic or transient effects appear critical around the boundaries
    in parameter space between simulation behaviours. Dispersal, gradient steepness,
    and population density emerge as key factors determining adaptation on an ecological
    gradient. '
acknowledgement: We are very grateful to Nick Barton.
article_processing_charge: No
author:
- first_name: Jon
  full_name: Bridle, Jon
  last_name: Bridle
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: Masakado
  full_name: Kawata, Masakado
  last_name: Kawata
- first_name: Roger
  full_name: Butlin, Roger
  last_name: Butlin
citation:
  ama: Bridle J, Polechova J, Kawata M, Butlin R. Why is adaptation prevented at ecological
    margins? New insights from individual-based simulations. <i>Ecology Letters</i>.
    2010;13(4):485-494. doi:<a href="https://doi.org/10.1111/j.1461-0248.2010.01442.x">10.1111/j.1461-0248.2010.01442.x</a>
  apa: Bridle, J., Polechova, J., Kawata, M., &#38; Butlin, R. (2010). Why is adaptation
    prevented at ecological margins? New insights from individual-based simulations.
    <i>Ecology Letters</i>. Wiley-Blackwell. <a href="https://doi.org/10.1111/j.1461-0248.2010.01442.x">https://doi.org/10.1111/j.1461-0248.2010.01442.x</a>
  chicago: Bridle, Jon, Jitka Polechova, Masakado Kawata, and Roger Butlin. “Why Is
    Adaptation Prevented at Ecological Margins? New Insights from Individual-Based
    Simulations.” <i>Ecology Letters</i>. Wiley-Blackwell, 2010. <a href="https://doi.org/10.1111/j.1461-0248.2010.01442.x">https://doi.org/10.1111/j.1461-0248.2010.01442.x</a>.
  ieee: J. Bridle, J. Polechova, M. Kawata, and R. Butlin, “Why is adaptation prevented
    at ecological margins? New insights from individual-based simulations,” <i>Ecology
    Letters</i>, vol. 13, no. 4. Wiley-Blackwell, pp. 485–494, 2010.
  ista: Bridle J, Polechova J, Kawata M, Butlin R. 2010. Why is adaptation prevented
    at ecological margins? New insights from individual-based simulations. Ecology
    Letters. 13(4), 485–494.
  mla: Bridle, Jon, et al. “Why Is Adaptation Prevented at Ecological Margins? New
    Insights from Individual-Based Simulations.” <i>Ecology Letters</i>, vol. 13,
    no. 4, Wiley-Blackwell, 2010, pp. 485–94, doi:<a href="https://doi.org/10.1111/j.1461-0248.2010.01442.x">10.1111/j.1461-0248.2010.01442.x</a>.
  short: J. Bridle, J. Polechova, M. Kawata, R. Butlin, Ecology Letters 13 (2010)
    485–494.
date_created: 2018-12-11T12:07:08Z
date_published: 2010-03-15T00:00:00Z
date_updated: 2025-09-30T09:29:55Z
day: '15'
department:
- _id: NiBa
doi: 10.1111/j.1461-0248.2010.01442.x
ec_funded: 1
external_id:
  isi:
  - '000275635400008'
intvolume: '        13'
isi: 1
issue: '4'
language:
- iso: eng
month: '03'
oa_version: None
page: 485 - 494
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication: Ecology Letters
publication_status: published
publisher: Wiley-Blackwell
publist_id: '1987'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Why is adaptation prevented at ecological margins? New insights from individual-based
  simulations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 13
year: '2010'
...
---
_id: '4136'
abstract:
- lang: eng
  text: 'Populations living in a spatially and temporally changing environment can
    adapt to the changing optimum and/or migrate toward favorable habitats. Here we
    extend previous analyses with a static optimum to allow the environment to vary
    in time as well as in space. The model follows both population dynamics and the
    trait mean under stabilizing selection, and the outcomes can be understood by
    comparing the loads due to genetic variance, dispersal, and temporal change. With
    fixed genetic variance, we obtain two regimes: (1) adaptation that is uniform
    along the environmental gradient and that responds to the moving optimum as expected
    for panmictic populations and when the spatial gradient is sufficiently steep,
    and (2) a population with limited range that adapts more slowly than the environmental
    optimum changes in both time and space; the population therefore becomes locally
    extinct and migrates toward suitable habitat. We also use a population‐genetic
    model with many loci to allow genetic variance to evolve, and we show that the
    only solution now has uniform adaptation.'
article_processing_charge: No
article_type: original
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- 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: Glenn
  full_name: Marion, Glenn
  last_name: Marion
citation:
  ama: 'Polechova J, Barton NH, Marion G. Species’ range: Adaptation in space and
    time. <i>American Naturalist</i>. 2009;174(5):E186-E204. doi:<a href="https://doi.org/10.1086/605958">10.1086/605958</a>'
  apa: 'Polechova, J., Barton, N. H., &#38; Marion, G. (2009). Species’ range: Adaptation
    in space and time. <i>American Naturalist</i>. University of Chicago Press. <a
    href="https://doi.org/10.1086/605958">https://doi.org/10.1086/605958</a>'
  chicago: 'Polechova, Jitka, Nicholas H Barton, and Glenn Marion. “Species’ Range:
    Adaptation in Space and Time.” <i>American Naturalist</i>. University of Chicago
    Press, 2009. <a href="https://doi.org/10.1086/605958">https://doi.org/10.1086/605958</a>.'
  ieee: 'J. Polechova, N. H. Barton, and G. Marion, “Species’ range: Adaptation in
    space and time,” <i>American Naturalist</i>, vol. 174, no. 5. University of Chicago
    Press, pp. E186–E204, 2009.'
  ista: 'Polechova J, Barton NH, Marion G. 2009. Species’ range: Adaptation in space
    and time. American Naturalist. 174(5), E186–E204.'
  mla: 'Polechova, Jitka, et al. “Species’ Range: Adaptation in Space and Time.” <i>American
    Naturalist</i>, vol. 174, no. 5, University of Chicago Press, 2009, pp. E186–204,
    doi:<a href="https://doi.org/10.1086/605958">10.1086/605958</a>.'
  short: J. Polechova, N.H. Barton, G. Marion, American Naturalist 174 (2009) E186–E204.
corr_author: '1'
date_created: 2018-12-11T12:07:09Z
date_published: 2009-11-05T00:00:00Z
date_updated: 2025-09-30T09:53:09Z
day: '05'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1086/605958
external_id:
  isi:
  - '000271021900002'
  pmid:
  - ' 19788353'
intvolume: '       174'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.doi.org/10.1086/605958
month: '11'
oa: 1
oa_version: Published Version
page: E186 - E204
pmid: 1
publication: American Naturalist
publication_status: published
publisher: University of Chicago Press
publist_id: '1986'
pubrep_id: '552'
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1086/659642
scopus_import: '1'
status: public
title: 'Species'' range: Adaptation in space and time'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 174
year: '2009'
...
---
OA_type: closed access
_id: '4137'
abstract:
- lang: eng
  text: "Why do species have finite ranges in space and time?\r\n\r\nAll species have
    limited ecological distributions, and all species eventually become extinct. At
    the heart of these distributional limits is the idea of trade-offs: a single population
    or species cannot maximize its fitness in all environments (Woodward and Kelly
    2003). Each species therefore occupies a limited range of ecological conditions,
    or a particular period in history, and interacts in complex ways in ecosystems
    consisting of many co-existing species. These interactions may in turn generate
    more specialization (Nosil & Harmon, this volume; Schemske, this volume). However,
    from an evolutionary biology perspective this explanation is incomplete. Populations
    clearly adapt to novel environments in some circumstances, otherwise there would
    be no life on land, no mammals in the ocean, and only a few species on oceanic
    islands such as Hawaii (Wagner & Funk 1995). What processes, therefore, act to
    constrain adaptation to changing environments and continually prevent the expansion
    of species into new habitats at the edge of their range?\r\n\r\nUnderstanding
    the factors that limit the temporal or spatial persistence of species is of key
    practical importance, given ongoing changes in global climate (Root et al. 2003),
    coupled with rapid habitat loss and alteration by the introduction of exotic species
    of parasites, predators and competitors."
alternative_title:
- ' Ecological Reviews'
article_processing_charge: No
author:
- first_name: Jon
  full_name: Bridle, Jon
  last_name: Bridle
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: Timothy
  full_name: Vines, Timothy
  last_name: Vines
citation:
  ama: 'Bridle J, Polechova J, Vines T. Limits to adaptation and patterns of biodiversity.
    In: R. K. Butlin JR, Bridle J, Schluter D, eds. <i>Speciation and Patterns of
    Diversity</i>. Cambridge University Press; 2009:77-101. doi:<a href="https://doi.org/10.1017/CBO9780511815683.007">10.1017/CBO9780511815683.007</a>'
  apa: Bridle, J., Polechova, J., &#38; Vines, T. (2009). Limits to adaptation and
    patterns of biodiversity. In J. R. R. K. Butlin, J. Bridle, &#38; D. Schluter
    (Eds.), <i>Speciation and Patterns of Diversity</i> (pp. 77–101). Cambridge University
    Press. <a href="https://doi.org/10.1017/CBO9780511815683.007">https://doi.org/10.1017/CBO9780511815683.007</a>
  chicago: Bridle, Jon, Jitka Polechova, and Timothy Vines. “Limits to Adaptation
    and Patterns of Biodiversity.” In <i>Speciation and Patterns of Diversity</i>,
    edited by J.R. R. K. Butlin, Jon Bridle, and D. Schluter, 77–101. Cambridge University
    Press, 2009. <a href="https://doi.org/10.1017/CBO9780511815683.007">https://doi.org/10.1017/CBO9780511815683.007</a>.
  ieee: J. Bridle, J. Polechova, and T. Vines, “Limits to adaptation and patterns
    of biodiversity,” in <i>Speciation and Patterns of Diversity</i>, J. R. R. K.
    Butlin, J. Bridle, and D. Schluter, Eds. Cambridge University Press, 2009, pp.
    77–101.
  ista: 'Bridle J, Polechova J, Vines T. 2009.Limits to adaptation and patterns of
    biodiversity. In: Speciation and Patterns of Diversity.  Ecological Reviews, ,
    77–101.'
  mla: Bridle, Jon, et al. “Limits to Adaptation and Patterns of Biodiversity.” <i>Speciation
    and Patterns of Diversity</i>, edited by J.R. R. K. Butlin et al., Cambridge University
    Press, 2009, pp. 77–101, doi:<a href="https://doi.org/10.1017/CBO9780511815683.007">10.1017/CBO9780511815683.007</a>.
  short: J. Bridle, J. Polechova, T. Vines, in:, J.R. R. K. Butlin, J. Bridle, D.
    Schluter (Eds.), Speciation and Patterns of Diversity, Cambridge University Press,
    2009, pp. 77–101.
date_created: 2018-12-11T12:07:09Z
date_published: 2009-01-01T00:00:00Z
date_updated: 2025-07-02T05:50:01Z
day: '01'
doi: 10.1017/CBO9780511815683.007
editor:
- first_name: J.R.
  full_name: R. K. Butlin, J.R.
  last_name: R. K. Butlin
- first_name: Jon
  full_name: Bridle, Jon
  last_name: Bridle
- first_name: D.
  full_name: Schluter, D.
  last_name: Schluter
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 77 - 101
publication: Speciation and Patterns of Diversity
publication_identifier:
  eissn:
  - '9780511815683'
publication_status: published
publisher: Cambridge University Press
publist_id: '1984'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Limits to adaptation and patterns of biodiversity
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '4135'
abstract:
- lang: eng
  text: There have been several attempts to build a unified framework for macroecological
    patterns. However, these have mostly been based either on questionable assumptions
    or have had to be parameterized to obtain realistic predictions. Here, we propose
    a new model explicitly considering patterns of aggregated species distributions
    on multiple spatial scales, the property which lies behind all spatial macroecological
    patterns, using the idea we term ‘generalized fractals’. Species’ spatial distributions
    were modelled by a random hierarchical process in which the original ‘habitat’
    patches were randomly replaced by sets of smaller patches nested within them,
    and the statistical properties of modelled species assemblages were compared with
    macroecological patterns in observed bird data. Without parameterization based
    on observed patterns, this simple model predicts realistic patterns of species
    abundance, distribution and diversity, including fractal-like spatial distributions,
    the frequency distribution of species occupancies/abundances and the species–area
    relationship. Although observed macroecological patterns may differ in some quantitative
    properties, our concept of random hierarchical aggregation can be considered as
    an appropriate null model of fundamental macroecological patterns which can potentially
    be modified to accommodate ecologically important variables.
article_processing_charge: No
author:
- first_name: D.
  full_name: Storch, D.
  last_name: Storch
- first_name: A.
  full_name: Šizling, A.
  last_name: Šizling
- first_name: J.
  full_name: Reif, J.
  last_name: Reif
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: E.
  full_name: Šizlingová, E.
  last_name: Šizlingová
- first_name: K.
  full_name: Gaston, K.
  last_name: Gaston
citation:
  ama: 'Storch D, Šizling A, Reif J, Polechova J, Šizlingová E, Gaston K. The quest
    for a null model for macroecological patterns: Geometry of species distributions
    at multiple spatial scales. <i>Ecology Letters</i>. 2008;11(8):771-784. doi:<a
    href="https://doi.org/10.1111/j.1461-0248.2008.01206.x">10.1111/j.1461-0248.2008.01206.x</a>'
  apa: 'Storch, D., Šizling, A., Reif, J., Polechova, J., Šizlingová, E., &#38; Gaston,
    K. (2008). The quest for a null model for macroecological patterns: Geometry of
    species distributions at multiple spatial scales. <i>Ecology Letters</i>. Wiley.
    <a href="https://doi.org/10.1111/j.1461-0248.2008.01206.x">https://doi.org/10.1111/j.1461-0248.2008.01206.x</a>'
  chicago: 'Storch, D., A. Šizling, J. Reif, Jitka Polechova, E. Šizlingová, and K.
    Gaston. “The Quest for a Null Model for Macroecological Patterns: Geometry of
    Species Distributions at Multiple Spatial Scales.” <i>Ecology Letters</i>. Wiley,
    2008. <a href="https://doi.org/10.1111/j.1461-0248.2008.01206.x">https://doi.org/10.1111/j.1461-0248.2008.01206.x</a>.'
  ieee: 'D. Storch, A. Šizling, J. Reif, J. Polechova, E. Šizlingová, and K. Gaston,
    “The quest for a null model for macroecological patterns: Geometry of species
    distributions at multiple spatial scales,” <i>Ecology Letters</i>, vol. 11, no.
    8. Wiley, pp. 771–784, 2008.'
  ista: 'Storch D, Šizling A, Reif J, Polechova J, Šizlingová E, Gaston K. 2008. The
    quest for a null model for macroecological patterns: Geometry of species distributions
    at multiple spatial scales. Ecology Letters. 11(8), 771–784.'
  mla: 'Storch, D., et al. “The Quest for a Null Model for Macroecological Patterns:
    Geometry of Species Distributions at Multiple Spatial Scales.” <i>Ecology Letters</i>,
    vol. 11, no. 8, Wiley, 2008, pp. 771–84, doi:<a href="https://doi.org/10.1111/j.1461-0248.2008.01206.x">10.1111/j.1461-0248.2008.01206.x</a>.'
  short: D. Storch, A. Šizling, J. Reif, J. Polechova, E. Šizlingová, K. Gaston, Ecology
    Letters 11 (2008) 771–784.
date_created: 2018-12-11T12:07:09Z
date_published: 2008-08-01T00:00:00Z
date_updated: 2025-07-02T05:52:43Z
day: '01'
doi: 10.1111/j.1461-0248.2008.01206.x
extern: '1'
intvolume: '        11'
issue: '8'
language:
- iso: eng
month: '08'
oa_version: None
page: 771 - 784
publication: Ecology Letters
publication_status: published
publisher: Wiley
publist_id: '1985'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The quest for a null model for macroecological patterns: Geometry of species
  distributions at multiple spatial scales'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2008'
...
---
_id: '4138'
abstract:
- lang: eng
  text: |-
    Adaptive dynamics describes the evolution of an asexual population through the successive substitution of mutations of small effect. Waxman &amp; Gavrilets (2005) give an excellent overview of the method and its applications. In this note, we focus on the plausibility of the key assumption that mutations have small effects, and the consequences of relaxing that assumption. We argue that: (i) successful mutations often have large effects; (ii) such mutations generate a qualitatively different evolutionary pattern, which is inherently stochastic; and (iii) in models of competition for a continuous resource, selection becomes very weak once several phenotypes are established. This makes the effects of introducing new mutations unpredictable using the methods of adaptive dynamics.

    We should make clear at the outset that our criticism is of methods that rely on local analysis of fitness gradients (eqn 2 of Waxman &amp; Gavrilets, 2005), and not of the broader idea that evolution can be understood by examining the invasion of successive mutations. We use the term ‘adaptive dynamics’ to refer to the former technique, and contrast it with a more general population genetic analysis of probabilities of invasion.
author:
- first_name: Nicholas H
  full_name: Nicholas Barton
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
- first_name: Jitka
  full_name: Jitka Polechova
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: Barton NH, Polechova J. The limitations of adaptive dynamics as a model of
    evolution. <i>Journal of Evolutionary Biology</i>. 2005;18(5):1186-1190. doi:<a
    href="https://doi.org/10.1111/j.1420-9101.2005.00943.x">10.1111/j.1420-9101.2005.00943.x</a>
  apa: Barton, N. H., &#38; Polechova, J. (2005). The limitations of adaptive dynamics
    as a model of evolution. <i>Journal of Evolutionary Biology</i>. Wiley-Blackwell.
    <a href="https://doi.org/10.1111/j.1420-9101.2005.00943.x">https://doi.org/10.1111/j.1420-9101.2005.00943.x</a>
  chicago: Barton, Nicholas H, and Jitka Polechova. “The Limitations of Adaptive Dynamics
    as a Model of Evolution.” <i>Journal of Evolutionary Biology</i>. Wiley-Blackwell,
    2005. <a href="https://doi.org/10.1111/j.1420-9101.2005.00943.x">https://doi.org/10.1111/j.1420-9101.2005.00943.x</a>.
  ieee: N. H. Barton and J. Polechova, “The limitations of adaptive dynamics as a
    model of evolution,” <i>Journal of Evolutionary Biology</i>, vol. 18, no. 5. Wiley-Blackwell,
    pp. 1186–1190, 2005.
  ista: Barton NH, Polechova J. 2005. The limitations of adaptive dynamics as a model
    of evolution. Journal of Evolutionary Biology. 18(5), 1186–1190.
  mla: Barton, Nicholas H., and Jitka Polechova. “The Limitations of Adaptive Dynamics
    as a Model of Evolution.” <i>Journal of Evolutionary Biology</i>, vol. 18, no.
    5, Wiley-Blackwell, 2005, pp. 1186–90, doi:<a href="https://doi.org/10.1111/j.1420-9101.2005.00943.x">10.1111/j.1420-9101.2005.00943.x</a>.
  short: N.H. Barton, J. Polechova, Journal of Evolutionary Biology 18 (2005) 1186–1190.
date_created: 2018-12-11T12:07:10Z
date_published: 2005-09-01T00:00:00Z
date_updated: 2021-01-12T07:54:47Z
day: '01'
doi: 10.1111/j.1420-9101.2005.00943.x
extern: 1
intvolume: '        18'
issue: '5'
month: '09'
page: 1186 - 1190
publication: Journal of Evolutionary Biology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '1982'
quality_controlled: 0
status: public
title: The limitations of adaptive dynamics as a model of evolution
type: journal_article
volume: 18
year: '2005'
...
---
_id: '4249'
abstract:
- lang: eng
  text: We examined causes of speciation in asexual populations in both sympatry and
    parapatry, providing an alternative explanation for the speciation patterns reported
    by Dieckmann and Doebeli (1999) and Doebeli and Dieckmann (2003). Both in sympatry
    and parapatry, they find that speciation occurs relatively easily. We reveal that
    in the sympatric clonal model, the equilibrium distribution is continuous and
    the disruptive selection driving evolution of discrete clusters is only transient.
    Hence, if discrete phenotypes are to remain stable in the sympatric sexual model,
    there should be some source of nontransient disruptive selection that will drive
    evolution of assortment. We analyze sexually reproducing populations using the
    Bulmer’s infinitesimal model and show that cost-free assortment alone leads to
    speciation and disruptive selection only arises when the optimal distribution
    cannot be matched—in this example, because the phenotypic range is limited. In
    addition, Doebeli and Dieckmann’s analyses assumed a high genetic variance and
    a high mutation rate. Thus, these theoretical models do not support the conclusion
    that sympatric speciation is a likely outcome of competition for resources. In
    their parapatric model (Doebeli and Dieckmann 2003), clustering into distinct
    phenotypes is driven by edge effects, rather than by frequency-dependent competition.
author:
- first_name: Jitka
  full_name: Jitka Polechova
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: Nicholas H
  full_name: Nicholas Barton
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
citation:
  ama: 'Polechova J, Barton NH. Speciation through competition: A critical review.
    <i>Evolution; International Journal of Organic Evolution</i>. 2005;59(6):1194-1210.
    doi:<a href="https://doi.org/10.1111/j.0014-3820.2005.tb01771.x">10.1111/j.0014-3820.2005.tb01771.x</a>'
  apa: 'Polechova, J., &#38; Barton, N. H. (2005). Speciation through competition:
    A critical review. <i>Evolution; International Journal of Organic Evolution</i>.
    Wiley-Blackwell. <a href="https://doi.org/10.1111/j.0014-3820.2005.tb01771.x">https://doi.org/10.1111/j.0014-3820.2005.tb01771.x</a>'
  chicago: 'Polechova, Jitka, and Nicholas H Barton. “Speciation through Competition:
    A Critical Review.” <i>Evolution; International Journal of Organic Evolution</i>.
    Wiley-Blackwell, 2005. <a href="https://doi.org/10.1111/j.0014-3820.2005.tb01771.x">https://doi.org/10.1111/j.0014-3820.2005.tb01771.x</a>.'
  ieee: 'J. Polechova and N. H. Barton, “Speciation through competition: A critical
    review,” <i>Evolution; International Journal of Organic Evolution</i>, vol. 59,
    no. 6. Wiley-Blackwell, pp. 1194–1210, 2005.'
  ista: 'Polechova J, Barton NH. 2005. Speciation through competition: A critical
    review. Evolution; International Journal of Organic Evolution. 59(6), 1194–1210.'
  mla: 'Polechova, Jitka, and Nicholas H. Barton. “Speciation through Competition:
    A Critical Review.” <i>Evolution; International Journal of Organic Evolution</i>,
    vol. 59, no. 6, Wiley-Blackwell, 2005, pp. 1194–210, doi:<a href="https://doi.org/10.1111/j.0014-3820.2005.tb01771.x">10.1111/j.0014-3820.2005.tb01771.x</a>.'
  short: J. Polechova, N.H. Barton, Evolution; International Journal of Organic Evolution
    59 (2005) 1194–1210.
date_created: 2018-12-11T12:07:50Z
date_published: 2005-06-01T00:00:00Z
date_updated: 2021-01-12T07:55:36Z
day: '01'
doi: 10.1111/j.0014-3820.2005.tb01771.x
extern: 1
intvolume: '        59'
issue: '6'
month: '06'
page: 1194 - 1210
publication: Evolution; International Journal of Organic Evolution
publication_status: published
publisher: Wiley-Blackwell
publist_id: '1849'
quality_controlled: 0
status: public
title: 'Speciation through competition: A critical review'
type: journal_article
volume: 59
year: '2005'
...
---
_id: '4139'
abstract:
- lang: eng
  text: Pilot studies in England by Stopka and Macdonald revealed that allogrooming
    in the Old World wood mouse, Apodemus sylvaticus, is a commodity that males can
    trade for reproductive benefits with females. This study, which used a combination
    of field study and observations in experimental enclosures, revealed that specific
    experimental conditions such as group-size and sex-ratio manipulations have a
    significant effect on the pattern of allogrooming exchanged between individuals.
    Furthermore, females from the Czech population were more likely to associate with
    each other as revealed by the clustering of activity centers of females (i.e.,
    as opposed to almost exclusive ranges in English populations), and also by the
    higher intensity of allogrooming exchanged between females (i.e., virtually lacking
    in the previous experiment with English mice). Therefore, geographic variation
    and specific social conditions seem to be important driving factors for allogrooming
    behavior. Together with changes in overall grooming patterns, allogrooming between
    males and females remained invariably asymmetrical over all four experimental
    groups (i.e., two conditions for each sex) in that males provided more allogrooming
    to females than they received from them.
article_processing_charge: No
article_type: original
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
- first_name: P.
  full_name: Stopka, P.
  last_name: Stopka
citation:
  ama: Polechova J, Stopka P. Geometry of social relationships in the Old World wood
    mouse, Apodemus sylvaticus. <i>Canadian Journal of Zoology</i>. 2002;80(8):1383-1388.
    doi:<a href="https://doi.org/10.1139/z02-128">10.1139/z02-128</a>
  apa: Polechova, J., &#38; Stopka, P. (2002). Geometry of social relationships in
    the Old World wood mouse, Apodemus sylvaticus. <i>Canadian Journal of Zoology</i>.
    NRC Research Press. <a href="https://doi.org/10.1139/z02-128">https://doi.org/10.1139/z02-128</a>
  chicago: Polechova, Jitka, and P. Stopka. “Geometry of Social Relationships in the
    Old World Wood Mouse, Apodemus Sylvaticus.” <i>Canadian Journal of Zoology</i>.
    NRC Research Press, 2002. <a href="https://doi.org/10.1139/z02-128">https://doi.org/10.1139/z02-128</a>.
  ieee: J. Polechova and P. Stopka, “Geometry of social relationships in the Old World
    wood mouse, Apodemus sylvaticus,” <i>Canadian Journal of Zoology</i>, vol. 80,
    no. 8. NRC Research Press, pp. 1383–1388, 2002.
  ista: Polechova J, Stopka P. 2002. Geometry of social relationships in the Old World
    wood mouse, Apodemus sylvaticus. Canadian Journal of Zoology. 80(8), 1383–1388.
  mla: Polechova, Jitka, and P. Stopka. “Geometry of Social Relationships in the Old
    World Wood Mouse, Apodemus Sylvaticus.” <i>Canadian Journal of Zoology</i>, vol.
    80, no. 8, NRC Research Press, 2002, pp. 1383–88, doi:<a href="https://doi.org/10.1139/z02-128">10.1139/z02-128</a>.
  short: J. Polechova, P. Stopka, Canadian Journal of Zoology 80 (2002) 1383–1388.
date_created: 2018-12-11T12:07:10Z
date_published: 2002-01-01T00:00:00Z
date_updated: 2023-06-07T12:53:35Z
day: '01'
doi: 10.1139/z02-128
extern: '1'
intvolume: '        80'
issue: '8'
language:
- iso: eng
month: '01'
oa_version: None
page: 1383 - 1388
publication: Canadian Journal of Zoology
publication_identifier:
  issn:
  - 0008-4301
publication_status: published
publisher: NRC Research Press
publist_id: '1981'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Geometry of social relationships in the Old World wood mouse, Apodemus sylvaticus
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 80
year: '2002'
...
