Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape
Identifying how sympatric species belonging to the same guild coexist is a major question of community ecology and conservation. Habitat segregation between two species might help reduce the effects of interspecific competition and apex predators are of special interest in this context, because thei...
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ftutahsudc:oai:digitalcommons.usu.edu:eco_pubs-1050 2023-05-15T15:49:58+02:00 Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape Milleret, Cyril Ordiz, Andrés Chapron, Guillaume Andreassen, Harry Peter Kindberg, Jonas Månsson, Johan Tallian, Aimee Wabakken, Petter Wikenros, Camilla Zimmermann, Barbara Swenson, Jon E. Sand, Håkan John Wiley & Sons 2018-11-11T08:00:00Z application/pdf https://digitalcommons.usu.edu/eco_pubs/49 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1050&context=eco_pubs unknown Hosted by Utah State University Libraries https://digitalcommons.usu.edu/eco_pubs/49 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1050&context=eco_pubs Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. http://creativecommons.org/licenses/by/4.0/ PDM CC-BY Ecology Center Publications brown bear (Ursus arctos) coexistence competition gray wolf (Canis lupus) habitat segregation habitat selection Animal Sciences Behavior and Ethology Ecology and Evolutionary Biology Life Sciences text 2018 ftutahsudc 2022-03-07T21:46:09Z Identifying how sympatric species belonging to the same guild coexist is a major question of community ecology and conservation. Habitat segregation between two species might help reduce the effects of interspecific competition and apex predators are of special interest in this context, because their interactions can have consequences for lower trophic levels. However, habitat segregation between sympatric large carnivores has seldom been studied. Based on monitoring of 53 brown bears (Ursus arctos) and seven sympatric adult gray wolves (Canis lupus) equipped with GPS collars in Sweden, we analyzed the degree of interspecific segregation in habitat selection within their home ranges in both late winter and spring, when their diets overlap the most. We used the K‐select method, a multivariate approach that relies on the concept of ecological niche, and randomization methods to quantify habitat segregation between bears and wolves. Habitat segregation between bears and wolves was greater than expected by chance. Wolves tended to select for moose occurrence, young forests, and rugged terrain more than bears, which likely reflects the different requirements of an omnivore (bear) and an obligate carnivore (wolf). However, both species generally avoided human‐related habitats during daytime. Disentangling the mechanisms that can drive interspecific interactions at different spatial scales is essential for understanding how sympatric large carnivores occur and coexist in human‐dominated landscapes, and how coexistence may affect lower trophic levels. The individual variation in habitat selection detected in our study may be a relevant mechanism to overcome intraguild competition and facilitate coexistence. Text Canis lupus gray wolf Ursus arctos Utah State University: DigitalCommons@USU |
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Utah State University: DigitalCommons@USU |
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ftutahsudc |
language |
unknown |
topic |
brown bear (Ursus arctos) coexistence competition gray wolf (Canis lupus) habitat segregation habitat selection Animal Sciences Behavior and Ethology Ecology and Evolutionary Biology Life Sciences |
spellingShingle |
brown bear (Ursus arctos) coexistence competition gray wolf (Canis lupus) habitat segregation habitat selection Animal Sciences Behavior and Ethology Ecology and Evolutionary Biology Life Sciences Milleret, Cyril Ordiz, Andrés Chapron, Guillaume Andreassen, Harry Peter Kindberg, Jonas Månsson, Johan Tallian, Aimee Wabakken, Petter Wikenros, Camilla Zimmermann, Barbara Swenson, Jon E. Sand, Håkan Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
topic_facet |
brown bear (Ursus arctos) coexistence competition gray wolf (Canis lupus) habitat segregation habitat selection Animal Sciences Behavior and Ethology Ecology and Evolutionary Biology Life Sciences |
description |
Identifying how sympatric species belonging to the same guild coexist is a major question of community ecology and conservation. Habitat segregation between two species might help reduce the effects of interspecific competition and apex predators are of special interest in this context, because their interactions can have consequences for lower trophic levels. However, habitat segregation between sympatric large carnivores has seldom been studied. Based on monitoring of 53 brown bears (Ursus arctos) and seven sympatric adult gray wolves (Canis lupus) equipped with GPS collars in Sweden, we analyzed the degree of interspecific segregation in habitat selection within their home ranges in both late winter and spring, when their diets overlap the most. We used the K‐select method, a multivariate approach that relies on the concept of ecological niche, and randomization methods to quantify habitat segregation between bears and wolves. Habitat segregation between bears and wolves was greater than expected by chance. Wolves tended to select for moose occurrence, young forests, and rugged terrain more than bears, which likely reflects the different requirements of an omnivore (bear) and an obligate carnivore (wolf). However, both species generally avoided human‐related habitats during daytime. Disentangling the mechanisms that can drive interspecific interactions at different spatial scales is essential for understanding how sympatric large carnivores occur and coexist in human‐dominated landscapes, and how coexistence may affect lower trophic levels. The individual variation in habitat selection detected in our study may be a relevant mechanism to overcome intraguild competition and facilitate coexistence. |
author2 |
John Wiley & Sons |
format |
Text |
author |
Milleret, Cyril Ordiz, Andrés Chapron, Guillaume Andreassen, Harry Peter Kindberg, Jonas Månsson, Johan Tallian, Aimee Wabakken, Petter Wikenros, Camilla Zimmermann, Barbara Swenson, Jon E. Sand, Håkan |
author_facet |
Milleret, Cyril Ordiz, Andrés Chapron, Guillaume Andreassen, Harry Peter Kindberg, Jonas Månsson, Johan Tallian, Aimee Wabakken, Petter Wikenros, Camilla Zimmermann, Barbara Swenson, Jon E. Sand, Håkan |
author_sort |
Milleret, Cyril |
title |
Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
title_short |
Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
title_full |
Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
title_fullStr |
Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
title_full_unstemmed |
Habitat Segregation Between Brown Bears and Gray Wolves in a Human-Dominated Landscape |
title_sort |
habitat segregation between brown bears and gray wolves in a human-dominated landscape |
publisher |
Hosted by Utah State University Libraries |
publishDate |
2018 |
url |
https://digitalcommons.usu.edu/eco_pubs/49 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1050&context=eco_pubs |
genre |
Canis lupus gray wolf Ursus arctos |
genre_facet |
Canis lupus gray wolf Ursus arctos |
op_source |
Ecology Center Publications |
op_relation |
https://digitalcommons.usu.edu/eco_pubs/49 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1050&context=eco_pubs |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
PDM CC-BY |
_version_ |
1766384968004534272 |