Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd
Summer diets are crucial for large herbivores in the subarctic and are affected by weather, harassment from insects and a variety of environmental changes linked to climate. Yet understanding foraging behavior and diet of large herbivores is challenging in the subarctic because of their remote range...
Main Authors: | , , , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2022
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.h18931zmz |
id |
ftzenodo:oai:zenodo.org:7343354 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:7343354 2024-09-15T18:31:48+00:00 Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd Ehlers, Libby Coulombe, Gabrielle Herriges, Jim Bentzen, Torsten Suitor, Mike Joly, Kyle Hebblewhite, Mark 2022-11-21 https://doi.org/10.5061/dryad.h18931zmz unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.h18931zmz oai:zenodo.org:7343354 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5061/dryad.h18931zmz 2024-07-26T00:31:17Z Summer diets are crucial for large herbivores in the subarctic and are affected by weather, harassment from insects and a variety of environmental changes linked to climate. Yet understanding foraging behavior and diet of large herbivores is challenging in the subarctic because of their remote ranges. We used GPS video-camera collars to observe behaviors and summer diets of the migratory Fortymile Caribou Herd ( Rangifer tarandus granti ) across Alaska, USA and the Yukon, Canada. First, we characterized caribou behavior. Second, we tested if videos could be used to quantify changes in the probability of eating events. Third, we estimated summer diets at the finest taxonomic resolution possible through videos. Finally, we compared summer diet estimates from video collars to microhistological analysis of fecal pellets. We classified 18,134 videos from 30 female caribou over two summers (2018 – 2019). Caribou behaviors included eating (mean = 43.5%), ruminating (25.6%), travelling (14.0%), stationary awake (11.3%) and napping (5.1%). Eating was restricted by insect harassment. We classified forage(s) consumed in 5,549 videos where diet composition (monthly) highlighted a strong tradeoff between lichens and shrubs; shrubs dominated diets in June and July when lichen use declined. We identified 63 species, 70 genus and 33 family groups of summer forages from videos. After adjusting for digestibility, monthly estimates of diet composition were strongly correlated at the scale of the forage functional type (i.e., forage groups comprised of forbs, graminoids, mosses, shrubs, and lichens; r = 0.79, p < 0.01). Using video collars, we identified i) a pronounced tradeoff in summer foraging between lichens and shrubs and ii) the costs of insect harassment on eating. Understanding caribou foraging ecology is needed to plan for their long-term conservation across the circumpolar north and video collars can provide a powerful approach across remote regions. README files attached to each .csv file in the uploaded file set. ... Other/Unknown Material Rangifer tarandus Subarctic Alaska Yukon Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
description |
Summer diets are crucial for large herbivores in the subarctic and are affected by weather, harassment from insects and a variety of environmental changes linked to climate. Yet understanding foraging behavior and diet of large herbivores is challenging in the subarctic because of their remote ranges. We used GPS video-camera collars to observe behaviors and summer diets of the migratory Fortymile Caribou Herd ( Rangifer tarandus granti ) across Alaska, USA and the Yukon, Canada. First, we characterized caribou behavior. Second, we tested if videos could be used to quantify changes in the probability of eating events. Third, we estimated summer diets at the finest taxonomic resolution possible through videos. Finally, we compared summer diet estimates from video collars to microhistological analysis of fecal pellets. We classified 18,134 videos from 30 female caribou over two summers (2018 – 2019). Caribou behaviors included eating (mean = 43.5%), ruminating (25.6%), travelling (14.0%), stationary awake (11.3%) and napping (5.1%). Eating was restricted by insect harassment. We classified forage(s) consumed in 5,549 videos where diet composition (monthly) highlighted a strong tradeoff between lichens and shrubs; shrubs dominated diets in June and July when lichen use declined. We identified 63 species, 70 genus and 33 family groups of summer forages from videos. After adjusting for digestibility, monthly estimates of diet composition were strongly correlated at the scale of the forage functional type (i.e., forage groups comprised of forbs, graminoids, mosses, shrubs, and lichens; r = 0.79, p < 0.01). Using video collars, we identified i) a pronounced tradeoff in summer foraging between lichens and shrubs and ii) the costs of insect harassment on eating. Understanding caribou foraging ecology is needed to plan for their long-term conservation across the circumpolar north and video collars can provide a powerful approach across remote regions. README files attached to each .csv file in the uploaded file set. ... |
format |
Other/Unknown Material |
author |
Ehlers, Libby Coulombe, Gabrielle Herriges, Jim Bentzen, Torsten Suitor, Mike Joly, Kyle Hebblewhite, Mark |
spellingShingle |
Ehlers, Libby Coulombe, Gabrielle Herriges, Jim Bentzen, Torsten Suitor, Mike Joly, Kyle Hebblewhite, Mark Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
author_facet |
Ehlers, Libby Coulombe, Gabrielle Herriges, Jim Bentzen, Torsten Suitor, Mike Joly, Kyle Hebblewhite, Mark |
author_sort |
Ehlers, Libby |
title |
Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
title_short |
Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
title_full |
Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
title_fullStr |
Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
title_full_unstemmed |
Behavior and diet data collected from i) GPS video camera collars and ii) fecal samples collected from individuals from the Fortymile Caribou Herd |
title_sort |
behavior and diet data collected from i) gps video camera collars and ii) fecal samples collected from individuals from the fortymile caribou herd |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5061/dryad.h18931zmz |
genre |
Rangifer tarandus Subarctic Alaska Yukon |
genre_facet |
Rangifer tarandus Subarctic Alaska Yukon |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.h18931zmz oai:zenodo.org:7343354 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.h18931zmz |
_version_ |
1810473546368942080 |