Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography
International audience Dispersal and shared environmental conditions can both synchronize the dynamics of local populations, but disentangling their relative influence on dynamics is challenging. We used a Bayesian approach to estimate the synchrony of a metapopulation of Atlantic salmon (Salmo sala...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
|
Subjects: | |
Online Access: | https://hal.inrae.fr/hal-03640309 https://doi.org/10.1139/cjfas-2021-0017 |
id |
ftunivnantes:oai:HAL:hal-03640309v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivnantes:oai:HAL:hal-03640309v1 2023-05-15T15:31:25+02:00 Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Environmental Science, Policy, and Management Berkeley (ESPM) University of California Berkeley (UC Berkeley) University of California (UC)-University of California (UC) ANR-16-IDEX-0002,E2S,E2S(2016) 2022 https://hal.inrae.fr/hal-03640309 https://doi.org/10.1139/cjfas-2021-0017 en eng HAL CCSD NRC Research Press info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2021-0017 hal-03640309 https://hal.inrae.fr/hal-03640309 doi:10.1139/cjfas-2021-0017 WOS: 000788284600001 ISSN: 0706-652X EISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences https://hal.inrae.fr/hal-03640309 Canadian Journal of Fisheries and Aquatic Sciences, 2022, 79 (5), pp.782-794. ⟨10.1139/cjfas-2021-0017⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1139/cjfas-2021-0017 2023-02-22T02:03:47Z International audience Dispersal and shared environmental conditions can both synchronize the dynamics of local populations, but disentangling their relative influence on dynamics is challenging. We used a Bayesian approach to estimate the synchrony of a metapopulation of Atlantic salmon (Salmo salar) composed of 18 populations in Brittany, France, including a 24-year time series of the abundances of juveniles. We estimated the spatial synchrony at a regional and local spatial scale over the study period. We found a strong regional synchrony despite spatiotemporal variability of local synchrony in the abundance of juveniles. We then explored the drivers of synchrony, including environmental conditions (aspects of river flow) and abundance of adult breeders. This revealed that summer low-flow conditions seemed to synchronize the abundances of juveniles more than the synchrony in the abundance of adult breeders, suggesting a Moran effect. Given that drought conditions are expected to become more common with climate change, our work highlights the potentially strong synchronizing effect of summer low flow on the dynamics of local salmon populations and the benefits of considering synchrony at multiple scales. Article in Journal/Newspaper Atlantic salmon Salmo salar Université de Nantes: HAL-UNIV-NANTES Canadian Journal of Fisheries and Aquatic Sciences 79 5 782 794 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
International audience Dispersal and shared environmental conditions can both synchronize the dynamics of local populations, but disentangling their relative influence on dynamics is challenging. We used a Bayesian approach to estimate the synchrony of a metapopulation of Atlantic salmon (Salmo salar) composed of 18 populations in Brittany, France, including a 24-year time series of the abundances of juveniles. We estimated the spatial synchrony at a regional and local spatial scale over the study period. We found a strong regional synchrony despite spatiotemporal variability of local synchrony in the abundance of juveniles. We then explored the drivers of synchrony, including environmental conditions (aspects of river flow) and abundance of adult breeders. This revealed that summer low-flow conditions seemed to synchronize the abundances of juveniles more than the synchrony in the abundance of adult breeders, suggesting a Moran effect. Given that drought conditions are expected to become more common with climate change, our work highlights the potentially strong synchronizing effect of summer low flow on the dynamics of local salmon populations and the benefits of considering synchrony at multiple scales. |
author2 |
Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Environmental Science, Policy, and Management Berkeley (ESPM) University of California Berkeley (UC Berkeley) University of California (UC)-University of California (UC) ANR-16-IDEX-0002,E2S,E2S(2016) |
format |
Article in Journal/Newspaper |
author |
Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie |
author_facet |
Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie |
author_sort |
Bouchard, Colin |
title |
Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
title_short |
Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
title_full |
Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
title_fullStr |
Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
title_full_unstemmed |
Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
title_sort |
synchrony in population dynamics of juvenile atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.inrae.fr/hal-03640309 https://doi.org/10.1139/cjfas-2021-0017 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ISSN: 0706-652X EISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences https://hal.inrae.fr/hal-03640309 Canadian Journal of Fisheries and Aquatic Sciences, 2022, 79 (5), pp.782-794. ⟨10.1139/cjfas-2021-0017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2021-0017 hal-03640309 https://hal.inrae.fr/hal-03640309 doi:10.1139/cjfas-2021-0017 WOS: 000788284600001 |
op_doi |
https://doi.org/10.1139/cjfas-2021-0017 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
79 |
container_issue |
5 |
container_start_page |
782 |
op_container_end_page |
794 |
_version_ |
1766361924596924416 |