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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Dryad
2020
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Online Access: | https://doi.org/10.5061/dryad.vb653hv |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::d46b8318f367afb6f541f5f196794c36 2023-05-15T15:46:07+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. 2020-03-07 https://doi.org/10.5061/dryad.vb653hv undefined unknown Dryad https://dx.doi.org/10.5061/dryad.vb653hv http://dx.doi.org/10.5061/dryad.vb653hv lic_creative-commons 10.5061/dryad.vb653hv oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:126134 oai:easy.dans.knaw.nl:easy-dataset:126134 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Carex subspathacea Branta bernicla nigricans black brant Behavior gosling growth lawn extent Hoppner's sedge Holocene Yukon Kuskokwim Delta Alaska Life sciences medicine and health care envir demo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.vb653hv 2023-01-22T16:50:58Z 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. Black brant Behavioral DataData was collected on the Yukon Kuskokwim Delta, Alaska, USA from 1987-2015. Observers stayed in towers with observation blinds and opportunistically selected broods to record behaviors for every minute in an hour. Some observations were shorter or longer than 60 minutes. Data was produced using program R from data ... Dataset Branta bernicla Kuskokwim Alaska Yukon Unknown Yukon Brant ENVELOPE(7.105,7.105,62.917,62.917) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Carex subspathacea Branta bernicla nigricans black brant Behavior gosling growth lawn extent Hoppner's sedge Holocene Yukon Kuskokwim Delta Alaska Life sciences medicine and health care envir demo |
spellingShingle |
Carex subspathacea Branta bernicla nigricans black brant Behavior gosling growth lawn extent Hoppner's sedge Holocene Yukon Kuskokwim Delta Alaska Life sciences medicine and health care envir demo 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 |
Carex subspathacea Branta bernicla nigricans black brant Behavior gosling growth lawn extent Hoppner's sedge Holocene Yukon Kuskokwim Delta Alaska Life sciences medicine and health care envir demo |
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. Black brant Behavioral DataData was collected on the Yukon Kuskokwim Delta, Alaska, USA from 1987-2015. Observers stayed in towers with observation blinds and opportunistically selected broods to record behaviors for every minute in an hour. Some observations were shorter or longer than 60 minutes. Data was produced using program R from data ... |
format |
Dataset |
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 |
publisher |
Dryad |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.vb653hv |
long_lat |
ENVELOPE(7.105,7.105,62.917,62.917) |
geographic |
Yukon Brant |
geographic_facet |
Yukon Brant |
genre |
Branta bernicla Kuskokwim Alaska Yukon |
genre_facet |
Branta bernicla Kuskokwim Alaska Yukon |
op_source |
10.5061/dryad.vb653hv oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:126134 oai:easy.dans.knaw.nl:easy-dataset:126134 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
https://dx.doi.org/10.5061/dryad.vb653hv http://dx.doi.org/10.5061/dryad.vb653hv |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.vb653hv |
_version_ |
1766380801631453184 |