Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant
Changes in ecological conditions can induce changes in behavior and demography of wild organisms, which in turn may influence population dynamics. Black brant (Branta bernicla nigricans) nesting in colonies on the Yukon–Kuskokwim Delta (YKD) in western Alaska have declined substantially (~50%) since...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:126134 2023-07-02T03:31:51+02:00 Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant Lohman, Madeleine G. Riecke, Thomas V. Acevedo, Cheyenne R. Person, Brian T. Schmutz, Joel A. Uher-Koch, Brian D. Sedinger, James S. 2019-04-12T15:03:08.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-c0-xqy1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:126134 unknown doi:10.5061/dryad.vb653hv/1 doi:10.5061/dryad.vb653hv/2 doi:10.5061/dryad.vb653hv/3 doi:10.1002/ece3.5118 http://nbn-resolving.org/urn:nbn:nl:ui:13-c0-xqy1 doi:10.5061/dryad.vb653hv https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:126134 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2019 ftdans https://doi.org/10.5061/dryad.vb653hv/110.5061/dryad.vb653hv/210.5061/dryad.vb653hv/310.1002/ece3.511810.5061/dryad.vb653hv 2023-06-13T13:38:25Z Changes in ecological conditions can induce changes in behavior and demography of wild organisms, which in turn may influence population dynamics. Black brant (Branta bernicla nigricans) nesting in colonies on the Yukon–Kuskokwim Delta (YKD) in western Alaska have declined substantially (~50%) since the turn of the century. Black brant are herbivores that rely heavily on Carex subspathacea (Hoppner's sedge) during growth and development. The availability of C. subspathacea affects gosling growth rates, which subsequently affect pre‐ and postfledging survival, as well as size and breeding probability as an adult. We predicted that long‐term declines in C. subspathacea have affected gosling growth rates, despite the potential of behavior to buffer changes in food availability during brood rearing. We used Bayesian hierarchical mixed‐effects models to examine long‐term (1987–2015) shifts in brant behavior during brood rearing, forage availability, and gosling growth rates at the Tutakoke River colony. We showed that locomotion behaviors have increased (β = 0.05, 95% CRI: 0.032–0.068) while resting behaviors have decreased (β = −0.024, 95% CRI: −0.041 to −0.007), potentially in response to long‐term shifts in forage availability and brood density. Concurrently, gosling growth rates have decreased substantially (β = −0.100, 95% CRI: −0.191 to −0.016) despite shifts in behavior, mirroring long‐term declines in the abundance of C. subspathacea (β = −0.191, 95% CRI: −0.355 to −0.032). These results have important implications for individual fitness and population viability, where shifts in gosling behavior putatively fail to mitigate long‐term declines in forage availability. Other/Unknown Material Branta bernicla Kuskokwim Alaska Yukon Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Brant ENVELOPE(7.105,7.105,62.917,62.917) Yukon |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Lohman, Madeleine G. Riecke, Thomas V. Acevedo, Cheyenne R. Person, Brian T. Schmutz, Joel A. Uher-Koch, Brian D. Sedinger, James S. Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
topic_facet |
Life sciences medicine and health care |
description |
Changes in ecological conditions can induce changes in behavior and demography of wild organisms, which in turn may influence population dynamics. Black brant (Branta bernicla nigricans) nesting in colonies on the Yukon–Kuskokwim Delta (YKD) in western Alaska have declined substantially (~50%) since the turn of the century. Black brant are herbivores that rely heavily on Carex subspathacea (Hoppner's sedge) during growth and development. The availability of C. subspathacea affects gosling growth rates, which subsequently affect pre‐ and postfledging survival, as well as size and breeding probability as an adult. We predicted that long‐term declines in C. subspathacea have affected gosling growth rates, despite the potential of behavior to buffer changes in food availability during brood rearing. We used Bayesian hierarchical mixed‐effects models to examine long‐term (1987–2015) shifts in brant behavior during brood rearing, forage availability, and gosling growth rates at the Tutakoke River colony. We showed that locomotion behaviors have increased (β = 0.05, 95% CRI: 0.032–0.068) while resting behaviors have decreased (β = −0.024, 95% CRI: −0.041 to −0.007), potentially in response to long‐term shifts in forage availability and brood density. Concurrently, gosling growth rates have decreased substantially (β = −0.100, 95% CRI: −0.191 to −0.016) despite shifts in behavior, mirroring long‐term declines in the abundance of C. subspathacea (β = −0.191, 95% CRI: −0.355 to −0.032). These results have important implications for individual fitness and population viability, where shifts in gosling behavior putatively fail to mitigate long‐term declines in forage availability. |
author |
Lohman, Madeleine G. Riecke, Thomas V. Acevedo, Cheyenne R. Person, Brian T. Schmutz, Joel A. Uher-Koch, Brian D. Sedinger, James S. |
author_facet |
Lohman, Madeleine G. Riecke, Thomas V. Acevedo, Cheyenne R. Person, Brian T. Schmutz, Joel A. Uher-Koch, Brian D. Sedinger, James S. |
author_sort |
Lohman, Madeleine G. |
title |
Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
title_short |
Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
title_full |
Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
title_fullStr |
Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
title_full_unstemmed |
Data from: Changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
title_sort |
data from: changes in behavior are unable to disrupt a trophic cascade involving a specialist herbivore and its food plant |
publishDate |
2019 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-c0-xqy1 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:126134 |
long_lat |
ENVELOPE(7.105,7.105,62.917,62.917) |
geographic |
Brant Yukon |
geographic_facet |
Brant Yukon |
genre |
Branta bernicla Kuskokwim Alaska Yukon |
genre_facet |
Branta bernicla Kuskokwim Alaska Yukon |
op_relation |
doi:10.5061/dryad.vb653hv/1 doi:10.5061/dryad.vb653hv/2 doi:10.5061/dryad.vb653hv/3 doi:10.1002/ece3.5118 http://nbn-resolving.org/urn:nbn:nl:ui:13-c0-xqy1 doi:10.5061/dryad.vb653hv https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:126134 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.vb653hv/110.5061/dryad.vb653hv/210.5061/dryad.vb653hv/310.1002/ece3.511810.5061/dryad.vb653hv |
_version_ |
1770271285001060352 |