Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams
The interaction between brown bears (Ursus arctos) and Pacific salmon (Oncorhynchus spp.) is important to the population dynamics of both species and a celebrated example of consumer-mediated nutrient transport. Yet, much of the site-specific information we have about the bears in this relationship...
Main Authors: | , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Dryad
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.1h8sr94 |
id |
fttriple:oai:gotriple.eu:50|dedup_wf_001::cf1f577d55d58dcababcd81757949c24 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::cf1f577d55d58dcababcd81757949c24 2023-05-15T18:41:53+02:00 Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams Wirsing, Aaron J. Quinn, Thomas P. Cunningham, Curry J. Adams, Jennifer R. Craig, Apryle D. Waits, Lisette P. 2019-07-11 https://doi.org/10.5061/dryad.1h8sr94 undefined unknown Dryad https://dx.doi.org/10.5061/dryad.1h8sr94 http://dx.doi.org/10.5061/dryad.1h8sr94 lic_creative-commons 10.5061/dryad.1h8sr94 oai:easy.dans.knaw.nl:easy-dataset:116922 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:116922 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Oncorhynchus nerka sockeye salmon Years Ursus arctos non-invasive population estimation Genetic capture-mark-recapture predation (:tba) Life sciences medicine and health care envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2019 fttriple https://doi.org/10.5061/dryad.1h8sr94 2023-01-22T16:53:35Z The interaction between brown bears (Ursus arctos) and Pacific salmon (Oncorhynchus spp.) is important to the population dynamics of both species and a celebrated example of consumer-mediated nutrient transport. Yet, much of the site-specific information we have about the bears in this relationship comes from observations at a few highly visible but unrepresentative locations and a small number of radio-telemetry studies. Consequently, our understanding of brown bear abundance and behavior at more cryptic locations where they commonly feed on salmon, including small spawning streams, remains limited. We employed a non-invasive genetic approach (barbed wire hair snares) over four summers (2012-2015) to document patterns of brown bear abundance and movement among six spawning streams for sockeye salmon, O. nerka, in southwestern Alaska. The streams were grouped into two trios on opposite sides of Lake Aleknagik. Thus, we predicted that most bears would forage within only one trio during the spawning season because of the energetic costs associated with swimming between them or traveling around the lake, and show fidelity to particular trios across years because of the benefits of familiarity with local salmon dynamics and stream characteristics. Huggins closed-capture models based on encounter histories from genotyped hair samples revealed that as many as 41 individuals visited single streams during the annual six-week sampling season. Bears also moved freely among trios of streams but rarely moved between these putative foraging neighborhoods, either during or between years. By implication, even small salmon spawning streams can serve as important resources for brown bears, and consistent use of stream neighborhoods by certain bears may play an important role in spatially structuring coastal bear populations. Our findings also underscore the efficacy of non-invasive hair snagging and genetic analysis for examining bear abundance and movements at relatively fine spatial and temporal scales. 2013 bears v2Brown bear ... Dataset Ursus arctos Alaska Unknown Huggins ENVELOPE(162.483,162.483,-78.283,-78.283) Pacific Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Oncorhynchus nerka sockeye salmon Years Ursus arctos non-invasive population estimation Genetic capture-mark-recapture predation (:tba) Life sciences medicine and health care envir geo |
spellingShingle |
Oncorhynchus nerka sockeye salmon Years Ursus arctos non-invasive population estimation Genetic capture-mark-recapture predation (:tba) Life sciences medicine and health care envir geo Wirsing, Aaron J. Quinn, Thomas P. Cunningham, Curry J. Adams, Jennifer R. Craig, Apryle D. Waits, Lisette P. Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
topic_facet |
Oncorhynchus nerka sockeye salmon Years Ursus arctos non-invasive population estimation Genetic capture-mark-recapture predation (:tba) Life sciences medicine and health care envir geo |
description |
The interaction between brown bears (Ursus arctos) and Pacific salmon (Oncorhynchus spp.) is important to the population dynamics of both species and a celebrated example of consumer-mediated nutrient transport. Yet, much of the site-specific information we have about the bears in this relationship comes from observations at a few highly visible but unrepresentative locations and a small number of radio-telemetry studies. Consequently, our understanding of brown bear abundance and behavior at more cryptic locations where they commonly feed on salmon, including small spawning streams, remains limited. We employed a non-invasive genetic approach (barbed wire hair snares) over four summers (2012-2015) to document patterns of brown bear abundance and movement among six spawning streams for sockeye salmon, O. nerka, in southwestern Alaska. The streams were grouped into two trios on opposite sides of Lake Aleknagik. Thus, we predicted that most bears would forage within only one trio during the spawning season because of the energetic costs associated with swimming between them or traveling around the lake, and show fidelity to particular trios across years because of the benefits of familiarity with local salmon dynamics and stream characteristics. Huggins closed-capture models based on encounter histories from genotyped hair samples revealed that as many as 41 individuals visited single streams during the annual six-week sampling season. Bears also moved freely among trios of streams but rarely moved between these putative foraging neighborhoods, either during or between years. By implication, even small salmon spawning streams can serve as important resources for brown bears, and consistent use of stream neighborhoods by certain bears may play an important role in spatially structuring coastal bear populations. Our findings also underscore the efficacy of non-invasive hair snagging and genetic analysis for examining bear abundance and movements at relatively fine spatial and temporal scales. 2013 bears v2Brown bear ... |
format |
Dataset |
author |
Wirsing, Aaron J. Quinn, Thomas P. Cunningham, Curry J. Adams, Jennifer R. Craig, Apryle D. Waits, Lisette P. |
author_facet |
Wirsing, Aaron J. Quinn, Thomas P. Cunningham, Curry J. Adams, Jennifer R. Craig, Apryle D. Waits, Lisette P. |
author_sort |
Wirsing, Aaron J. |
title |
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
title_short |
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
title_full |
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
title_fullStr |
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
title_full_unstemmed |
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon along small streams |
title_sort |
data from: alaskan brown bears (ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on pacific salmon along small streams |
publisher |
Dryad |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.1h8sr94 |
long_lat |
ENVELOPE(162.483,162.483,-78.283,-78.283) ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Huggins Pacific Sockeye |
geographic_facet |
Huggins Pacific Sockeye |
genre |
Ursus arctos Alaska |
genre_facet |
Ursus arctos Alaska |
op_source |
10.5061/dryad.1h8sr94 oai:easy.dans.knaw.nl:easy-dataset:116922 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:116922 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.1h8sr94 http://dx.doi.org/10.5061/dryad.1h8sr94 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.1h8sr94 |
_version_ |
1766231460129275904 |