Differing drivers of decline within a migratory metapopulation has implications for future conservation
Abstract Researchers generally ascribe demographic drivers in a single sub‐population and presume they are representative. With this information, practitioners implement blanket conservation measures across metapopulations to reverse declines. However, such approaches may not be appropriate in circu...
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Online Access: | http://dx.doi.org/10.1002/ece3.10281 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.10281 |
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crwiley:10.1002/ece3.10281 2024-06-02T08:02:43+00:00 Differing drivers of decline within a migratory metapopulation has implications for future conservation Ozsanlav‐Harris, Luke Hilton, Geoff M. Griffin, Larry R. Walsh, Alyn J. Cao, Lei Weegman, Mitch D. Bearhop, Stuart Scottish Natural Heritage University of Exeter 2023 http://dx.doi.org/10.1002/ece3.10281 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.10281 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 13, issue 7 ISSN 2045-7758 2045-7758 journal-article 2023 crwiley https://doi.org/10.1002/ece3.10281 2024-05-03T12:04:24Z Abstract Researchers generally ascribe demographic drivers in a single sub‐population and presume they are representative. With this information, practitioners implement blanket conservation measures across metapopulations to reverse declines. However, such approaches may not be appropriate in circumstances where sub‐populations are spatiotemporally segregated and exposed to different environmental variation. The Greenland White‐fronted Goose, Anser albifrons flavirostris , is an Arctic‐nesting migrant that largely comprises two sub‐populations (delineated by northerly and southerly breeding areas in west Greenland). The metapopulation has declined since 1999 but this trend is only mirrored in one sub‐population and the causes of this disparity are unclear. Here we compare the drivers and trends of productivity in both sub‐populations using population‐ and individual‐level analysis. We examined how temperature and precipitation influenced population‐level reproductive success over 37 years and whether there was a change in the relationship when metapopulation decline commenced. In addition, we used biologging devices to remotely classify incubation events for 86 bird‐years and modelled how phenology and environmental conditions influenced individual‐level nest survival. Correlations between reproductive success and temperature/precipitation on the breeding grounds have weakened for both sub‐populations. This has resulted in lower reproductive success for the northerly, but not southerly breeding sub‐population, which at the individual‐level appears to be driven by lower nest survival. Earlier breeding ground arrival and less precipitation during incubation increased nest survival in the northerly breeding population, while no factors examined were important for the southerly breeding sub‐population. This suggests reproductive success is driven by different factor(s) in the two sub‐populations. Demographic rates and their environmental drivers differ between the sub‐populations examined here and consequently we ... Article in Journal/Newspaper Arctic Greenland Wiley Online Library Arctic Greenland Ecology and Evolution 13 7 |
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Wiley Online Library |
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crwiley |
language |
English |
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Abstract Researchers generally ascribe demographic drivers in a single sub‐population and presume they are representative. With this information, practitioners implement blanket conservation measures across metapopulations to reverse declines. However, such approaches may not be appropriate in circumstances where sub‐populations are spatiotemporally segregated and exposed to different environmental variation. The Greenland White‐fronted Goose, Anser albifrons flavirostris , is an Arctic‐nesting migrant that largely comprises two sub‐populations (delineated by northerly and southerly breeding areas in west Greenland). The metapopulation has declined since 1999 but this trend is only mirrored in one sub‐population and the causes of this disparity are unclear. Here we compare the drivers and trends of productivity in both sub‐populations using population‐ and individual‐level analysis. We examined how temperature and precipitation influenced population‐level reproductive success over 37 years and whether there was a change in the relationship when metapopulation decline commenced. In addition, we used biologging devices to remotely classify incubation events for 86 bird‐years and modelled how phenology and environmental conditions influenced individual‐level nest survival. Correlations between reproductive success and temperature/precipitation on the breeding grounds have weakened for both sub‐populations. This has resulted in lower reproductive success for the northerly, but not southerly breeding sub‐population, which at the individual‐level appears to be driven by lower nest survival. Earlier breeding ground arrival and less precipitation during incubation increased nest survival in the northerly breeding population, while no factors examined were important for the southerly breeding sub‐population. This suggests reproductive success is driven by different factor(s) in the two sub‐populations. Demographic rates and their environmental drivers differ between the sub‐populations examined here and consequently we ... |
author2 |
Scottish Natural Heritage University of Exeter |
format |
Article in Journal/Newspaper |
author |
Ozsanlav‐Harris, Luke Hilton, Geoff M. Griffin, Larry R. Walsh, Alyn J. Cao, Lei Weegman, Mitch D. Bearhop, Stuart |
spellingShingle |
Ozsanlav‐Harris, Luke Hilton, Geoff M. Griffin, Larry R. Walsh, Alyn J. Cao, Lei Weegman, Mitch D. Bearhop, Stuart Differing drivers of decline within a migratory metapopulation has implications for future conservation |
author_facet |
Ozsanlav‐Harris, Luke Hilton, Geoff M. Griffin, Larry R. Walsh, Alyn J. Cao, Lei Weegman, Mitch D. Bearhop, Stuart |
author_sort |
Ozsanlav‐Harris, Luke |
title |
Differing drivers of decline within a migratory metapopulation has implications for future conservation |
title_short |
Differing drivers of decline within a migratory metapopulation has implications for future conservation |
title_full |
Differing drivers of decline within a migratory metapopulation has implications for future conservation |
title_fullStr |
Differing drivers of decline within a migratory metapopulation has implications for future conservation |
title_full_unstemmed |
Differing drivers of decline within a migratory metapopulation has implications for future conservation |
title_sort |
differing drivers of decline within a migratory metapopulation has implications for future conservation |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/ece3.10281 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.10281 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
Ecology and Evolution volume 13, issue 7 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.10281 |
container_title |
Ecology and Evolution |
container_volume |
13 |
container_issue |
7 |
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1800747189808398336 |