Density-dependent habitat selection and partitioning between two sympatric ungulates
Theory on density-dependent habitat selection predicts that as population density of a species increases, use of higher quality (primary) habitat by individuals declines while use of lower quality (secondary) habitat rises. Habitat partitioning is often considered the primary mechanism for coexisten...
Published in: | Oecologia |
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Language: | English |
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Online Access: | https://pure.au.dk/portal/en/publications/4a434704-1dcf-47f1-a804-d54d661db7b6 https://doi.org/10.1007/s00442-014-2978-7 https://pure.au.dk/ws/files/84424771/van_Beest_et_al_2014_Oecologia_Density_habsel_and_overlap_elk_moose.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/4a434704-1dcf-47f1-a804-d54d661db7b6 2024-02-04T09:52:31+01:00 Density-dependent habitat selection and partitioning between two sympatric ungulates van Beest, Floris McLoughlin, Philip D. Vander Wal, Eric Brook, Ryan K. 2014 application/pdf https://pure.au.dk/portal/en/publications/4a434704-1dcf-47f1-a804-d54d661db7b6 https://doi.org/10.1007/s00442-014-2978-7 https://pure.au.dk/ws/files/84424771/van_Beest_et_al_2014_Oecologia_Density_habsel_and_overlap_elk_moose.pdf eng eng https://pure.au.dk/portal/en/publications/4a434704-1dcf-47f1-a804-d54d661db7b6 info:eu-repo/semantics/restrictedAccess van Beest , F , McLoughlin , P D , Vander Wal , E & Brook , R K 2014 , ' Density-dependent habitat selection and partitioning between two sympatric ungulates ' , Oecologia , vol. 175 , no. 4 , pp. 1155-1165 . https://doi.org/10.1007/s00442-014-2978-7 Competition State space Population density Harvest Resource-selection functions Coexistence Deer Predation risk article 2014 ftuniaarhuspubl https://doi.org/10.1007/s00442-014-2978-7 2024-01-10T23:59:39Z Theory on density-dependent habitat selection predicts that as population density of a species increases, use of higher quality (primary) habitat by individuals declines while use of lower quality (secondary) habitat rises. Habitat partitioning is often considered the primary mechanism for coexistence between similar species, but how this process evolves with changes in population density remains to be empirically tested for free-ranging ungulates. We used resource-selection functions to quantify density effects on landscape-scale habitat selection of two sympatric species of ungulates [moose (Alces alces) and elk (Cervus canadensis manitobensis)] in Riding Mountain National Park, Manitoba, Canada (2000-2011). The density of elk was actively reduced from 1.2 to 0.4 elk km(-2) through increased hunting effort during the period of study, while moose density decreased without additional human influence from 1.6-0.7 moose km(-2). Patterns of habitat selection during winter by both species changed in accordance to expectations from density-dependent habitat-selection theory. At low intraspecific density, moose and elk did not partition habitat, as both species selected strongly for mixed forest (primary habitat providing both food and cover), but did so in different areas segregated across an elevational gradient. As intraspecific density increased, selection for primary habitat by both species decreased, while selection for secondary, lower quality habitat such as agricultural fields (for elk) and built-up areas (for moose) increased. We show that habitat-selection strategies during winter for moose and elk, and subsequent effects on habitat partitioning, depend heavily on the position in state space (density) of both species. Article in Journal/Newspaper Alces alces Aarhus University: Research Canada Oecologia 175 4 1155 1165 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Competition State space Population density Harvest Resource-selection functions Coexistence Deer Predation risk |
spellingShingle |
Competition State space Population density Harvest Resource-selection functions Coexistence Deer Predation risk van Beest, Floris McLoughlin, Philip D. Vander Wal, Eric Brook, Ryan K. Density-dependent habitat selection and partitioning between two sympatric ungulates |
topic_facet |
Competition State space Population density Harvest Resource-selection functions Coexistence Deer Predation risk |
description |
Theory on density-dependent habitat selection predicts that as population density of a species increases, use of higher quality (primary) habitat by individuals declines while use of lower quality (secondary) habitat rises. Habitat partitioning is often considered the primary mechanism for coexistence between similar species, but how this process evolves with changes in population density remains to be empirically tested for free-ranging ungulates. We used resource-selection functions to quantify density effects on landscape-scale habitat selection of two sympatric species of ungulates [moose (Alces alces) and elk (Cervus canadensis manitobensis)] in Riding Mountain National Park, Manitoba, Canada (2000-2011). The density of elk was actively reduced from 1.2 to 0.4 elk km(-2) through increased hunting effort during the period of study, while moose density decreased without additional human influence from 1.6-0.7 moose km(-2). Patterns of habitat selection during winter by both species changed in accordance to expectations from density-dependent habitat-selection theory. At low intraspecific density, moose and elk did not partition habitat, as both species selected strongly for mixed forest (primary habitat providing both food and cover), but did so in different areas segregated across an elevational gradient. As intraspecific density increased, selection for primary habitat by both species decreased, while selection for secondary, lower quality habitat such as agricultural fields (for elk) and built-up areas (for moose) increased. We show that habitat-selection strategies during winter for moose and elk, and subsequent effects on habitat partitioning, depend heavily on the position in state space (density) of both species. |
format |
Article in Journal/Newspaper |
author |
van Beest, Floris McLoughlin, Philip D. Vander Wal, Eric Brook, Ryan K. |
author_facet |
van Beest, Floris McLoughlin, Philip D. Vander Wal, Eric Brook, Ryan K. |
author_sort |
van Beest, Floris |
title |
Density-dependent habitat selection and partitioning between two sympatric ungulates |
title_short |
Density-dependent habitat selection and partitioning between two sympatric ungulates |
title_full |
Density-dependent habitat selection and partitioning between two sympatric ungulates |
title_fullStr |
Density-dependent habitat selection and partitioning between two sympatric ungulates |
title_full_unstemmed |
Density-dependent habitat selection and partitioning between two sympatric ungulates |
title_sort |
density-dependent habitat selection and partitioning between two sympatric ungulates |
publishDate |
2014 |
url |
https://pure.au.dk/portal/en/publications/4a434704-1dcf-47f1-a804-d54d661db7b6 https://doi.org/10.1007/s00442-014-2978-7 https://pure.au.dk/ws/files/84424771/van_Beest_et_al_2014_Oecologia_Density_habsel_and_overlap_elk_moose.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
van Beest , F , McLoughlin , P D , Vander Wal , E & Brook , R K 2014 , ' Density-dependent habitat selection and partitioning between two sympatric ungulates ' , Oecologia , vol. 175 , no. 4 , pp. 1155-1165 . https://doi.org/10.1007/s00442-014-2978-7 |
op_relation |
https://pure.au.dk/portal/en/publications/4a434704-1dcf-47f1-a804-d54d661db7b6 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00442-014-2978-7 |
container_title |
Oecologia |
container_volume |
175 |
container_issue |
4 |
container_start_page |
1155 |
op_container_end_page |
1165 |
_version_ |
1789958982005161984 |