Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals
Abstract Exploring the process of diet selection will contribute to improvement in our understanding of animal foraging strategies. The overwhelming majority of ecological research on animal learning and foraging concentrates on how social learning influences the feeding styles of animals living in...
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ftdoajarticles:oai:doaj.org/article:f5c3226771ea4fd187ec7a8ce7a1bdf3 2023-05-15T18:42:13+02:00 Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals Mina Jimbo Tsuyoshi Ishinazaka Yuri Shirane Yoshihiro Umemura Masami Yamanaka Hiroyuki Uno Mariko Sashika Toshio Tsubota Michito Shimozuru 2022-07-01T00:00:00Z https://doi.org/10.1002/ecs2.4105 https://doaj.org/article/f5c3226771ea4fd187ec7a8ce7a1bdf3 EN eng Wiley https://doi.org/10.1002/ecs2.4105 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.4105 https://doaj.org/article/f5c3226771ea4fd187ec7a8ce7a1bdf3 Ecosphere, Vol 13, Iss 7, Pp n/a-n/a (2022) asocial learning brown bear carnivore diet selection foraging strategies stable isotope analysis Ecology QH540-549.5 article 2022 ftdoajarticles https://doi.org/10.1002/ecs2.4105 2022-12-31T01:57:15Z Abstract Exploring the process of diet selection will contribute to improvement in our understanding of animal foraging strategies. The overwhelming majority of ecological research on animal learning and foraging concentrates on how social learning influences the feeding styles of animals living in groups. In solitary animals that live long after independence from their mothers, foraging experience after independence is expected to have a significant influence on diet selection, but few studies have addressed this point. We used brown bears (Ursus arctos), which spend 1–2 years with their mothers before foraging alone, as a model species and investigated how their diet changed later in life. We estimated the diets of bears at the individual level by using stable isotope analysis of guard hairs and examined the factors that drove dietary variation. We also quantified the extent to which the diets of bears shifted by comparing the diets of bears at the time of capture with the average diet in their natal habitat. Our results indicated that females retained the average diet of their natal habitat, whereas the diets of males significantly changed more than 6 years after becoming independent from their mothers, when they reached physical maturity. Males were dependent on energy‐rich marine animals at older ages regardless of their natal habitats, which we attribute to several factors, including habitat exploration, acquisition of foraging experience, and social dominance. Our results provide the first evidence, suggesting that foraging experience after independence influences diet selection later in life in solitary large mammals. Article in Journal/Newspaper Ursus arctos Directory of Open Access Journals: DOAJ Articles Ecosphere 13 7 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
asocial learning brown bear carnivore diet selection foraging strategies stable isotope analysis Ecology QH540-549.5 |
spellingShingle |
asocial learning brown bear carnivore diet selection foraging strategies stable isotope analysis Ecology QH540-549.5 Mina Jimbo Tsuyoshi Ishinazaka Yuri Shirane Yoshihiro Umemura Masami Yamanaka Hiroyuki Uno Mariko Sashika Toshio Tsubota Michito Shimozuru Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
topic_facet |
asocial learning brown bear carnivore diet selection foraging strategies stable isotope analysis Ecology QH540-549.5 |
description |
Abstract Exploring the process of diet selection will contribute to improvement in our understanding of animal foraging strategies. The overwhelming majority of ecological research on animal learning and foraging concentrates on how social learning influences the feeding styles of animals living in groups. In solitary animals that live long after independence from their mothers, foraging experience after independence is expected to have a significant influence on diet selection, but few studies have addressed this point. We used brown bears (Ursus arctos), which spend 1–2 years with their mothers before foraging alone, as a model species and investigated how their diet changed later in life. We estimated the diets of bears at the individual level by using stable isotope analysis of guard hairs and examined the factors that drove dietary variation. We also quantified the extent to which the diets of bears shifted by comparing the diets of bears at the time of capture with the average diet in their natal habitat. Our results indicated that females retained the average diet of their natal habitat, whereas the diets of males significantly changed more than 6 years after becoming independent from their mothers, when they reached physical maturity. Males were dependent on energy‐rich marine animals at older ages regardless of their natal habitats, which we attribute to several factors, including habitat exploration, acquisition of foraging experience, and social dominance. Our results provide the first evidence, suggesting that foraging experience after independence influences diet selection later in life in solitary large mammals. |
format |
Article in Journal/Newspaper |
author |
Mina Jimbo Tsuyoshi Ishinazaka Yuri Shirane Yoshihiro Umemura Masami Yamanaka Hiroyuki Uno Mariko Sashika Toshio Tsubota Michito Shimozuru |
author_facet |
Mina Jimbo Tsuyoshi Ishinazaka Yuri Shirane Yoshihiro Umemura Masami Yamanaka Hiroyuki Uno Mariko Sashika Toshio Tsubota Michito Shimozuru |
author_sort |
Mina Jimbo |
title |
Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
title_short |
Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
title_full |
Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
title_fullStr |
Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
title_full_unstemmed |
Diet selection and asocial learning: Natal habitat influence on lifelong foraging strategies in solitary large mammals |
title_sort |
diet selection and asocial learning: natal habitat influence on lifelong foraging strategies in solitary large mammals |
publisher |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1002/ecs2.4105 https://doaj.org/article/f5c3226771ea4fd187ec7a8ce7a1bdf3 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Ecosphere, Vol 13, Iss 7, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1002/ecs2.4105 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.4105 https://doaj.org/article/f5c3226771ea4fd187ec7a8ce7a1bdf3 |
op_doi |
https://doi.org/10.1002/ecs2.4105 |
container_title |
Ecosphere |
container_volume |
13 |
container_issue |
7 |
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1766231851910823936 |