Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country
Spatial heterogeneity in the strength of trophic interactions is a fundamental property of food web spatial dynamics. The feeding effort of herbivores should reflect adaptive decisions that only become rewarding when foraging gains exceed 1) the metabolic costs, 2) the missed opportunity costs of no...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2013
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.4dp00 |
id |
ftzenodo:oai:zenodo.org:4987757 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:4987757 2024-09-15T18:01:26+00:00 Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country Harvey, Léa Fortin, Daniel 2013-09-12 https://doi.org/10.5061/dryad.4dp00 unknown Zenodo https://doi.org/10.1371/journal.pone.0073324 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.4dp00 oai:zenodo.org:4987757 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode wolf spatial game Bison foraging ecology info:eu-repo/semantics/other 2013 ftzenodo https://doi.org/10.5061/dryad.4dp0010.1371/journal.pone.0073324 2024-07-26T22:41:02Z Spatial heterogeneity in the strength of trophic interactions is a fundamental property of food web spatial dynamics. The feeding effort of herbivores should reflect adaptive decisions that only become rewarding when foraging gains exceed 1) the metabolic costs, 2) the missed opportunity costs of not foraging elsewhere, and 3) the foraging costs of anti-predator behaviour. Two aspects of these costs remain largely unexplored: the link between the strength of plant-herbivore interactions and the spatial scale of food-quality assessment, and the predator-prey spatial game. We modeled the foraging effort of free-ranging plains bison (Bison bison bison) in winter, within a mosaic of discrete meadows. Spatial patterns of bison herbivory were largely driven by a search for high net energy gains and, to a lesser degree, by the spatial game with grey wolves (Canis lupus). Bison decreased local feeding effort with increasing metabolic and missed opportunity costs. Bison herbivory was most consistent with a broad-scale assessment of food patch quality, i.e., bison grazed more intensively in patches with a low missed opportunity cost relative to other patches available in the landscape. Bison and wolves had a higher probability of using the same meadows than expected randomly. This co-occurrence indicates wolves are ahead in the spatial game they play with bison. Wolves influenced bison foraging at fine scale, as bison tended to consume less biomass at each feeding station when in meadows where the risk of a wolf's arrival was relatively high. Also, bison left more high-quality vegetation in large than small meadows. This behavior does not maximize their energy intake rate, but is consistent with bison playing a shell game with wolves. Our assessment of bison foraging in a natural setting clarifies the complex nature of plant-herbivore interactions under predation risk, and reveals how spatial patterns in herbivory emerge from multi-scale landscape heterogeneity. HarveyFortinDataset S1 Field data Other/Unknown Material Canis lupus Bison bison bison Plains Bison Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
wolf spatial game Bison foraging ecology |
spellingShingle |
wolf spatial game Bison foraging ecology Harvey, Léa Fortin, Daniel Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
topic_facet |
wolf spatial game Bison foraging ecology |
description |
Spatial heterogeneity in the strength of trophic interactions is a fundamental property of food web spatial dynamics. The feeding effort of herbivores should reflect adaptive decisions that only become rewarding when foraging gains exceed 1) the metabolic costs, 2) the missed opportunity costs of not foraging elsewhere, and 3) the foraging costs of anti-predator behaviour. Two aspects of these costs remain largely unexplored: the link between the strength of plant-herbivore interactions and the spatial scale of food-quality assessment, and the predator-prey spatial game. We modeled the foraging effort of free-ranging plains bison (Bison bison bison) in winter, within a mosaic of discrete meadows. Spatial patterns of bison herbivory were largely driven by a search for high net energy gains and, to a lesser degree, by the spatial game with grey wolves (Canis lupus). Bison decreased local feeding effort with increasing metabolic and missed opportunity costs. Bison herbivory was most consistent with a broad-scale assessment of food patch quality, i.e., bison grazed more intensively in patches with a low missed opportunity cost relative to other patches available in the landscape. Bison and wolves had a higher probability of using the same meadows than expected randomly. This co-occurrence indicates wolves are ahead in the spatial game they play with bison. Wolves influenced bison foraging at fine scale, as bison tended to consume less biomass at each feeding station when in meadows where the risk of a wolf's arrival was relatively high. Also, bison left more high-quality vegetation in large than small meadows. This behavior does not maximize their energy intake rate, but is consistent with bison playing a shell game with wolves. Our assessment of bison foraging in a natural setting clarifies the complex nature of plant-herbivore interactions under predation risk, and reveals how spatial patterns in herbivory emerge from multi-scale landscape heterogeneity. HarveyFortinDataset S1 Field data |
format |
Other/Unknown Material |
author |
Harvey, Léa Fortin, Daniel |
author_facet |
Harvey, Léa Fortin, Daniel |
author_sort |
Harvey, Léa |
title |
Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
title_short |
Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
title_full |
Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
title_fullStr |
Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
title_full_unstemmed |
Data from: Spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
title_sort |
data from: spatial heterogeneity in the strength of plant-herbivore interactions under predation risk: the tale of bison foraging in wolf country |
publisher |
Zenodo |
publishDate |
2013 |
url |
https://doi.org/10.5061/dryad.4dp00 |
genre |
Canis lupus Bison bison bison Plains Bison |
genre_facet |
Canis lupus Bison bison bison Plains Bison |
op_relation |
https://doi.org/10.1371/journal.pone.0073324 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.4dp00 oai:zenodo.org:4987757 |
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.4dp0010.1371/journal.pone.0073324 |
_version_ |
1810438591423184896 |