Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography
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 popul...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0017 |
id |
crcansciencepubl:10.1139/cjfas-2021-0017 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/cjfas-2021-0017 2023-12-17T10:27:19+01:00 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 M. 2022 http://dx.doi.org/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0017 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 5, page 782-794 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfas-2021-0017 2023-11-19T13:38:55Z 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 Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie M. Synchrony in population dynamics of juvenile Atlantic salmon: analyzing spatiotemporal variation and the influence of river flow and demography |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie M. |
author_facet |
Bouchard, Colin Buoro, Mathieu Lebot, Clément Carlson, Stephanie M. |
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 |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0017 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0017 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 5, page 782-794 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2021-0017 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1785579147891834880 |