Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos)
Stable isotope analysis of animal tissue samples is increasingly used to study the trophic ecology of target species. The isotopic signatures respond to the type of diet, but also to the environmental conditions of their habitat. In the case of omnivorous, seasonal or opportunistic feeding species,...
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Online Access: | https://hdl.handle.net/11695/133358 https://doi.org/10.1007/s13364-022-00654-2 |
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ftunivmoliseiris:oai:iris.unimol.it:11695/133358 2024-05-19T07:49:45+00:00 Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) Garcia-Vazquez A. Crampton D. A. Lamb A. L. Wolff G. A. Kiriakoulakis K. Guidarelli G. Loy A. Ciucci P. Groff C. Pinto-Llona A. C. Grandal-d'Anglade A. Meloro C. Garcia-Vazquez, A. Crampton, D. A. Lamb, A. L. Wolff, G. A. Kiriakoulakis, K. Guidarelli, G. Loy, A. Ciucci, P. Groff, C. Pinto-Llona, A. C. Grandal-d'Anglade, A. Meloro, C. 2023 https://hdl.handle.net/11695/133358 https://doi.org/10.1007/s13364-022-00654-2 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000870962400001 volume:68 issue:1 firstpage:63 lastpage:76 numberofpages:14 journal:MAMMAL RESEARCH https://hdl.handle.net/11695/133358 doi:10.1007/s13364-022-00654-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85140384583 Alp Brown bear Cantabrian Mountain Central Apennine Climate Diet Omnivore Pyrenee Stable isotope analysi Trentino info:eu-repo/semantics/article 2023 ftunivmoliseiris https://doi.org/10.1007/s13364-022-00654-2 2024-04-25T00:51:20Z Stable isotope analysis of animal tissue samples is increasingly used to study the trophic ecology of target species. The isotopic signatures respond to the type of diet, but also to the environmental conditions of their habitat. In the case of omnivorous, seasonal or opportunistic feeding species, the interpretation of isotopic values is more complex, as it is largely determined by food selection, either due to individual choice or because of availability. We analysed C and N isotopes in brown bear (Ursus arctos) hair from four isolated populations of south-western Europe (Cantabrian, Pyrenees, Central Apennines and Alpine) accounting for the geographical and climatic differences among the four areas. We found inter-population differences in isotopic signatures that cannot be attributed to climatic differences alone, indicating that at least some bears from relatively higher altitude populations experiencing higher precipitation (Pyrenees) show a greater consumption of animal foods than those from lower altitudes (Cantabrian and Apennines). The quantification of isotopic niche space using Layman’s metrics identified significant similarities between the Cantabrian and Central Apennine samples that markedly differ from the Pyrenean and Alpine. Our study provides a baseline to allow further comparisons in isotopic niche spaces in a broad ranged omnivorous mammal, whose European distribution requires further conservation attention especially for southern isolated populations. Article in Journal/Newspaper Ursus arctos Università degli Studi del Molise: IRIS Mammal Research 68 1 63 76 |
institution |
Open Polar |
collection |
Università degli Studi del Molise: IRIS |
op_collection_id |
ftunivmoliseiris |
language |
English |
topic |
Alp Brown bear Cantabrian Mountain Central Apennine Climate Diet Omnivore Pyrenee Stable isotope analysi Trentino |
spellingShingle |
Alp Brown bear Cantabrian Mountain Central Apennine Climate Diet Omnivore Pyrenee Stable isotope analysi Trentino Garcia-Vazquez A. Crampton D. A. Lamb A. L. Wolff G. A. Kiriakoulakis K. Guidarelli G. Loy A. Ciucci P. Groff C. Pinto-Llona A. C. Grandal-d'Anglade A. Meloro C. Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
topic_facet |
Alp Brown bear Cantabrian Mountain Central Apennine Climate Diet Omnivore Pyrenee Stable isotope analysi Trentino |
description |
Stable isotope analysis of animal tissue samples is increasingly used to study the trophic ecology of target species. The isotopic signatures respond to the type of diet, but also to the environmental conditions of their habitat. In the case of omnivorous, seasonal or opportunistic feeding species, the interpretation of isotopic values is more complex, as it is largely determined by food selection, either due to individual choice or because of availability. We analysed C and N isotopes in brown bear (Ursus arctos) hair from four isolated populations of south-western Europe (Cantabrian, Pyrenees, Central Apennines and Alpine) accounting for the geographical and climatic differences among the four areas. We found inter-population differences in isotopic signatures that cannot be attributed to climatic differences alone, indicating that at least some bears from relatively higher altitude populations experiencing higher precipitation (Pyrenees) show a greater consumption of animal foods than those from lower altitudes (Cantabrian and Apennines). The quantification of isotopic niche space using Layman’s metrics identified significant similarities between the Cantabrian and Central Apennine samples that markedly differ from the Pyrenean and Alpine. Our study provides a baseline to allow further comparisons in isotopic niche spaces in a broad ranged omnivorous mammal, whose European distribution requires further conservation attention especially for southern isolated populations. |
author2 |
Garcia-Vazquez, A. Crampton, D. A. Lamb, A. L. Wolff, G. A. Kiriakoulakis, K. Guidarelli, G. Loy, A. Ciucci, P. Groff, C. Pinto-Llona, A. C. Grandal-d'Anglade, A. Meloro, C. |
format |
Article in Journal/Newspaper |
author |
Garcia-Vazquez A. Crampton D. A. Lamb A. L. Wolff G. A. Kiriakoulakis K. Guidarelli G. Loy A. Ciucci P. Groff C. Pinto-Llona A. C. Grandal-d'Anglade A. Meloro C. |
author_facet |
Garcia-Vazquez A. Crampton D. A. Lamb A. L. Wolff G. A. Kiriakoulakis K. Guidarelli G. Loy A. Ciucci P. Groff C. Pinto-Llona A. C. Grandal-d'Anglade A. Meloro C. |
author_sort |
Garcia-Vazquez A. |
title |
Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
title_short |
Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
title_full |
Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
title_fullStr |
Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
title_full_unstemmed |
Isotopic signature in isolated south-western populations of European brown bear (Ursus arctos) |
title_sort |
isotopic signature in isolated south-western populations of european brown bear (ursus arctos) |
publishDate |
2023 |
url |
https://hdl.handle.net/11695/133358 https://doi.org/10.1007/s13364-022-00654-2 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000870962400001 volume:68 issue:1 firstpage:63 lastpage:76 numberofpages:14 journal:MAMMAL RESEARCH https://hdl.handle.net/11695/133358 doi:10.1007/s13364-022-00654-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85140384583 |
op_doi |
https://doi.org/10.1007/s13364-022-00654-2 |
container_title |
Mammal Research |
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68 |
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1 |
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63 |
op_container_end_page |
76 |
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1799468303626797056 |