Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America
Competition between taxa related to climate changes has been proposed as a possible factor in Pleistocene megafaunal extinctions, and here we present isotope evidence of the diets of three co-existing bear species [black bear (Ursus americanus), brown bear (Ursus arctos), and the now extinct short-f...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://research.manchester.ac.uk/en/publications/7fe3e924-d5c6-4311-a994-90aa1795d595 https://doi.org/10.1002/jqs.3451 https://pure.manchester.ac.uk/ws/files/224806724/KubiakEtAl2022.pdf |
id |
ftumanchesterpub:oai:pure.atira.dk:publications/7fe3e924-d5c6-4311-a994-90aa1795d595 |
---|---|
record_format |
openpolar |
spelling |
ftumanchesterpub:oai:pure.atira.dk:publications/7fe3e924-d5c6-4311-a994-90aa1795d595 2023-11-12T04:27:47+01:00 Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America Kubiak, Cara Grimes, Vaughan Van Biesen, Geert Keddie, Grant Buckley, Mike Macdonald, Reba Richards, M. P. 2022-06-27 application/pdf https://research.manchester.ac.uk/en/publications/7fe3e924-d5c6-4311-a994-90aa1795d595 https://doi.org/10.1002/jqs.3451 https://pure.manchester.ac.uk/ws/files/224806724/KubiakEtAl2022.pdf eng eng info:eu-repo/semantics/openAccess Kubiak , C , Grimes , V , Van Biesen , G , Keddie , G , Buckley , M , Macdonald , R & Richards , M P 2022 , ' Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America ' , Journal of Quaternary Science . https://doi.org/10.1002/jqs.3451 ResearchInstitutes_Networks_Beacons/manchester_institute_of_biotechnology Manchester Institute of Biotechnology ResearchInstitutes_Networks_Beacons/MERI Manchester Environmental Research Institute article 2022 ftumanchesterpub https://doi.org/10.1002/jqs.3451 2023-10-30T09:14:02Z Competition between taxa related to climate changes has been proposed as a possible factor in Pleistocene megafaunal extinctions, and here we present isotope evidence of the diets of three co-existing bear species [black bear (Ursus americanus), brown bear (Ursus arctos), and the now extinct short-faced bear (Arctodus simus)] from a locale in western North America dating to the Late (Terminal) Pleistocene (~14.5–11.7 ka). The three bear species were found at several sites on Vancouver Island, on the western coast of Canada. To examine the chronological overlap and niche partitioning between these species of bear, we used direct radiocarbon dating, stable isotope analysis and ZooMS proteomic identification methods. Here we present new radiocarbon evidence from Terminal Pleistocene U. americanus, U. arctos and A. simus from several sites on the island, along with both bulk collagen and compound-specific isotope data for these species. Radiocarbon dates confirm the chronological overlap of Arctodus and both Ursus species in the montane regions of the island at the end of the Pleistocene. Stable isotope data reveal niche differentiation between these species, with U. americanus occupying a distinctly lower trophic position than the other two taxa. Article in Journal/Newspaper Ursus arctos The University of Manchester: Research Explorer Journal of Quaternary Science 38 1 8 20 |
institution |
Open Polar |
collection |
The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
topic |
ResearchInstitutes_Networks_Beacons/manchester_institute_of_biotechnology Manchester Institute of Biotechnology ResearchInstitutes_Networks_Beacons/MERI Manchester Environmental Research Institute |
spellingShingle |
ResearchInstitutes_Networks_Beacons/manchester_institute_of_biotechnology Manchester Institute of Biotechnology ResearchInstitutes_Networks_Beacons/MERI Manchester Environmental Research Institute Kubiak, Cara Grimes, Vaughan Van Biesen, Geert Keddie, Grant Buckley, Mike Macdonald, Reba Richards, M. P. Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
topic_facet |
ResearchInstitutes_Networks_Beacons/manchester_institute_of_biotechnology Manchester Institute of Biotechnology ResearchInstitutes_Networks_Beacons/MERI Manchester Environmental Research Institute |
description |
Competition between taxa related to climate changes has been proposed as a possible factor in Pleistocene megafaunal extinctions, and here we present isotope evidence of the diets of three co-existing bear species [black bear (Ursus americanus), brown bear (Ursus arctos), and the now extinct short-faced bear (Arctodus simus)] from a locale in western North America dating to the Late (Terminal) Pleistocene (~14.5–11.7 ka). The three bear species were found at several sites on Vancouver Island, on the western coast of Canada. To examine the chronological overlap and niche partitioning between these species of bear, we used direct radiocarbon dating, stable isotope analysis and ZooMS proteomic identification methods. Here we present new radiocarbon evidence from Terminal Pleistocene U. americanus, U. arctos and A. simus from several sites on the island, along with both bulk collagen and compound-specific isotope data for these species. Radiocarbon dates confirm the chronological overlap of Arctodus and both Ursus species in the montane regions of the island at the end of the Pleistocene. Stable isotope data reveal niche differentiation between these species, with U. americanus occupying a distinctly lower trophic position than the other two taxa. |
format |
Article in Journal/Newspaper |
author |
Kubiak, Cara Grimes, Vaughan Van Biesen, Geert Keddie, Grant Buckley, Mike Macdonald, Reba Richards, M. P. |
author_facet |
Kubiak, Cara Grimes, Vaughan Van Biesen, Geert Keddie, Grant Buckley, Mike Macdonald, Reba Richards, M. P. |
author_sort |
Kubiak, Cara |
title |
Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
title_short |
Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
title_full |
Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
title_fullStr |
Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
title_full_unstemmed |
Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America |
title_sort |
dietary niche separation of three late pleistocene bear species from vancouver island, on the pacific northwest coast of north america |
publishDate |
2022 |
url |
https://research.manchester.ac.uk/en/publications/7fe3e924-d5c6-4311-a994-90aa1795d595 https://doi.org/10.1002/jqs.3451 https://pure.manchester.ac.uk/ws/files/224806724/KubiakEtAl2022.pdf |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Kubiak , C , Grimes , V , Van Biesen , G , Keddie , G , Buckley , M , Macdonald , R & Richards , M P 2022 , ' Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America ' , Journal of Quaternary Science . https://doi.org/10.1002/jqs.3451 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/jqs.3451 |
container_title |
Journal of Quaternary Science |
container_volume |
38 |
container_issue |
1 |
container_start_page |
8 |
op_container_end_page |
20 |
_version_ |
1782341264243425280 |