Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents"
Trophic interactions are a fundamental topic in ecology, but we know little about how competition between apex predators affects predation, the mechanism driving top-down forcing in ecosystems. We used long-term datasets from Scandinavia, Europe, and Yellowstone National Park, North America, to eval...
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ftdatacite:10.6084/m9.figshare.c.3677062.v1 2023-05-15T15:50:36+02:00 Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" Tallian, Aimee Ordiz, Andrés Metz, Matthew C. Milleret, Cyril Wikenros, Camilla Smith, Douglas W. Stahler, Daniel R. Kindberg, Jonas MacNulty, Daniel R. Wabakken, Petter Swenson, Jon E. Sand, Håkan 2017 https://dx.doi.org/10.6084/m9.figshare.c.3677062.v1 https://figshare.com/collections/Supplementary_material_from_Competition_between_apex_predators_Brown_bears_decrease_wolf_kill_rate_on_two_continents_/3677062/1 unknown Figshare https://dx.doi.org/10.1098/rspb.2016.2368 https://dx.doi.org/10.6084/m9.figshare.c.3677062 CC BY https://creativecommons.org/licenses/by/4.0 CC-BY Ecology FOS Biological sciences 60801 Animal Behaviour Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3677062.v1 https://doi.org/10.1098/rspb.2016.2368 https://doi.org/10.6084/m9.figshare.c.3677062 2021-11-05T12:55:41Z Trophic interactions are a fundamental topic in ecology, but we know little about how competition between apex predators affects predation, the mechanism driving top-down forcing in ecosystems. We used long-term datasets from Scandinavia, Europe, and Yellowstone National Park, North America, to evaluate how grey wolf ( Canis lupus ) kill rate was affected by a sympatric apex predator, the brown bear ( Ursus arctos ). We used kill interval, i.e. the number of days between consecutive ungulate kills, as a proxy of kill rate. Although brown bears can monopolize wolf kills, we found no support in either study system for the common assumption that they cause wolves to kill more often. By contrast, our results showed the opposite effect. In Scandinavia, wolf packs sympatric with brown bears killed less often than allopatric packs, during both spring, after bear den emergence and summer. Similarly, the presence of bears at wolf-killed ungulates was associated with wolves killing less often during summer in Yellowstone. The consistency in results between the two systems suggests that brown bear presence actually reduces wolf kill rate. Our results suggest that the influence of predation on lower trophic levels may depend on the composition of predator communities. Article in Journal/Newspaper Canis lupus Ursus arctos DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences 60801 Animal Behaviour |
spellingShingle |
Ecology FOS Biological sciences 60801 Animal Behaviour Tallian, Aimee Ordiz, Andrés Metz, Matthew C. Milleret, Cyril Wikenros, Camilla Smith, Douglas W. Stahler, Daniel R. Kindberg, Jonas MacNulty, Daniel R. Wabakken, Petter Swenson, Jon E. Sand, Håkan Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
topic_facet |
Ecology FOS Biological sciences 60801 Animal Behaviour |
description |
Trophic interactions are a fundamental topic in ecology, but we know little about how competition between apex predators affects predation, the mechanism driving top-down forcing in ecosystems. We used long-term datasets from Scandinavia, Europe, and Yellowstone National Park, North America, to evaluate how grey wolf ( Canis lupus ) kill rate was affected by a sympatric apex predator, the brown bear ( Ursus arctos ). We used kill interval, i.e. the number of days between consecutive ungulate kills, as a proxy of kill rate. Although brown bears can monopolize wolf kills, we found no support in either study system for the common assumption that they cause wolves to kill more often. By contrast, our results showed the opposite effect. In Scandinavia, wolf packs sympatric with brown bears killed less often than allopatric packs, during both spring, after bear den emergence and summer. Similarly, the presence of bears at wolf-killed ungulates was associated with wolves killing less often during summer in Yellowstone. The consistency in results between the two systems suggests that brown bear presence actually reduces wolf kill rate. Our results suggest that the influence of predation on lower trophic levels may depend on the composition of predator communities. |
format |
Article in Journal/Newspaper |
author |
Tallian, Aimee Ordiz, Andrés Metz, Matthew C. Milleret, Cyril Wikenros, Camilla Smith, Douglas W. Stahler, Daniel R. Kindberg, Jonas MacNulty, Daniel R. Wabakken, Petter Swenson, Jon E. Sand, Håkan |
author_facet |
Tallian, Aimee Ordiz, Andrés Metz, Matthew C. Milleret, Cyril Wikenros, Camilla Smith, Douglas W. Stahler, Daniel R. Kindberg, Jonas MacNulty, Daniel R. Wabakken, Petter Swenson, Jon E. Sand, Håkan |
author_sort |
Tallian, Aimee |
title |
Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
title_short |
Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
title_full |
Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
title_fullStr |
Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
title_full_unstemmed |
Supplementary material from "Competition between apex predators? Brown bears decrease wolf kill rate on two continents" |
title_sort |
supplementary material from "competition between apex predators? brown bears decrease wolf kill rate on two continents" |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3677062.v1 https://figshare.com/collections/Supplementary_material_from_Competition_between_apex_predators_Brown_bears_decrease_wolf_kill_rate_on_two_continents_/3677062/1 |
genre |
Canis lupus Ursus arctos |
genre_facet |
Canis lupus Ursus arctos |
op_relation |
https://dx.doi.org/10.1098/rspb.2016.2368 https://dx.doi.org/10.6084/m9.figshare.c.3677062 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3677062.v1 https://doi.org/10.1098/rspb.2016.2368 https://doi.org/10.6084/m9.figshare.c.3677062 |
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1766385580035276800 |