---
OA_place: repository
OA_type: green
_id: '18944'
abstract:
- lang: eng
  text: 'Understanding connectivity patterns exhibited by endangered species living
    in fragmented habitats is fundamental to improving management and conservation
    actions. Such improvements can be particularly pressing at the trailing edges
    of these habitats, where populations are facing the greatest challenges from climate
    change, and appear even more crucial if the species is commercially harvested.
    Seascape genetics have been increasingly used to meet these needs. In this study,
    we examined connectivity patterns among 32 populations of the oarweed kelp <jats:italic>Lam</jats:italic><jats:italic>inaria
    digitata</jats:italic> located at the species’ southern range limit. The distance
    (or sampling gap) between neighboring populations ranged from a few km to a few
    100s of km. By genotyping 11 microsatellite markers, we aimed to (1) refine analyses
    of population structure; (2) test whether on-shelf islands are genetically more
    differentiated than mainland populations; (3) evaluate the relative importance
    of various abiotic conditions in shaping the genetic structure; and (4) evaluate
    if the relative importance of each environmental factor varied according to sampling
    schemes. Our analyses revealed a positive relationship between connectivity links
    and genetic diversity: populations with high levels of connectivity were genetically
    enriched while isolated populations showed signs of genetic erosion. The genetically
    impoverished populations corresponded to the southernmost populations as well
    as populations along the northern coast of Brittany (Locquirec, Saint-Malo Bay)
    and the northernmost population in Pas-de-Calais. By performing distance-based
    redundancy analysis on various sampling schemes, geographic distance appeared
    as the dominant factor influencing connectivity between populations separated
    by great distances, while hydrodynamic processes were the main factor when analyzing
    at a final spatial resolution.'
article_processing_charge: No
article_type: original
author:
- first_name: Louise
  full_name: Fouqueau, Louise
  id: 1676e173-8143-11ed-8927-fe165216a93f
  last_name: Fouqueau
  orcid: 0000-0003-0371-9339
- first_name: L
  full_name: Reynes, L
  last_name: Reynes
- first_name: F
  full_name: Tempera, F
  last_name: Tempera
- first_name: T
  full_name: Bajjouk, T
  last_name: Bajjouk
- first_name: A
  full_name: Blanfuné, A
  last_name: Blanfuné
- first_name: C
  full_name: Chevalier, C
  last_name: Chevalier
- first_name: M
  full_name: Laurans, M
  last_name: Laurans
- first_name: S
  full_name: Mauger, S
  last_name: Mauger
- first_name: M
  full_name: Sourisseau, M
  last_name: Sourisseau
- first_name: J
  full_name: Assis, J
  last_name: Assis
- first_name: L
  full_name: Lévêque, L
  last_name: Lévêque
- first_name: M
  full_name: Valero, M
  last_name: Valero
citation:
  ama: Fouqueau L, Reynes L, Tempera F, et al. Seascape genetic study on Laminaria
    digitata underscores the critical role of sampling schemes. <i>Marine Ecology
    Progress Series</i>. 2024;740:23-42. doi:<a href="https://doi.org/10.3354/meps14640">10.3354/meps14640</a>
  apa: Fouqueau, L., Reynes, L., Tempera, F., Bajjouk, T., Blanfuné, A., Chevalier,
    C., … Valero, M. (2024). Seascape genetic study on Laminaria digitata underscores
    the critical role of sampling schemes. <i>Marine Ecology Progress Series</i>.
    Inter-Research Science Center. <a href="https://doi.org/10.3354/meps14640">https://doi.org/10.3354/meps14640</a>
  chicago: Fouqueau, Louise, L Reynes, F Tempera, T Bajjouk, A Blanfuné, C Chevalier,
    M Laurans, et al. “Seascape Genetic Study on Laminaria Digitata Underscores the
    Critical Role of Sampling Schemes.” <i>Marine Ecology Progress Series</i>. Inter-Research
    Science Center, 2024. <a href="https://doi.org/10.3354/meps14640">https://doi.org/10.3354/meps14640</a>.
  ieee: L. Fouqueau <i>et al.</i>, “Seascape genetic study on Laminaria digitata underscores
    the critical role of sampling schemes,” <i>Marine Ecology Progress Series</i>,
    vol. 740. Inter-Research Science Center, pp. 23–42, 2024.
  ista: Fouqueau L, Reynes L, Tempera F, Bajjouk T, Blanfuné A, Chevalier C, Laurans
    M, Mauger S, Sourisseau M, Assis J, Lévêque L, Valero M. 2024. Seascape genetic
    study on Laminaria digitata underscores the critical role of sampling schemes.
    Marine Ecology Progress Series. 740, 23–42.
  mla: Fouqueau, Louise, et al. “Seascape Genetic Study on Laminaria Digitata Underscores
    the Critical Role of Sampling Schemes.” <i>Marine Ecology Progress Series</i>,
    vol. 740, Inter-Research Science Center, 2024, pp. 23–42, doi:<a href="https://doi.org/10.3354/meps14640">10.3354/meps14640</a>.
  short: L. Fouqueau, L. Reynes, F. Tempera, T. Bajjouk, A. Blanfuné, C. Chevalier,
    M. Laurans, S. Mauger, M. Sourisseau, J. Assis, L. Lévêque, M. Valero, Marine
    Ecology Progress Series 740 (2024) 23–42.
corr_author: '1'
date_created: 2025-01-29T09:09:10Z
date_published: 2024-07-25T00:00:00Z
date_updated: 2025-01-29T09:12:34Z
day: '25'
department:
- _id: NiBa
doi: 10.3354/meps14640
intvolume: '       740'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://inria.hal.science/hal-04624490/
month: '07'
oa: 1
oa_version: Submitted Version
page: 23-42
publication: Marine Ecology Progress Series
publication_identifier:
  eissn:
  - 1616-1599
  issn:
  - 0171-8630
publication_status: published
publisher: Inter-Research Science Center
quality_controlled: '1'
scopus_import: '1'
status: public
title: Seascape genetic study on Laminaria digitata underscores the critical role
  of sampling schemes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 740
year: '2024'
...