Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System
Interindividual variation in niche presents a potentially central object on which natural selection can act. This may have important evolutionary implications because habitat use governs a suite of selective forces encountered by foragers. In a free‐living native black‐tailed deer, Odocoileus hemion...
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ftinstsciencepol:oai:www.wellbeingintlstudiesrepository.org:evobio-1001 2023-06-18T03:40:06+02:00 Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System Darimont, C. T. Paquet, P. C. Reimchen, T. E. 2007-01-01T08:00:00Z application/pdf https://www.wellbeingintlstudiesrepository.org/evobio/2 https://www.wellbeingintlstudiesrepository.org/context/evobio/article/1001/viewcontent/j.1095_8312.2007.00716.x.pdf unknown WBI Studies Repository https://www.wellbeingintlstudiesrepository.org/evobio/2 https://www.wellbeingintlstudiesrepository.org/context/evobio/article/1001/viewcontent/j.1095_8312.2007.00716.x.pdf Evolutionary Biology Collection Canis lupus foraging behaviour individual niche natural selection Odocoileus hemionus predation stable isotope analysis Animal Studies Other Animal Sciences Other Ecology and Evolutionary Biology text 2007 ftinstsciencepol 2023-06-04T20:18:49Z Interindividual variation in niche presents a potentially central object on which natural selection can act. This may have important evolutionary implications because habitat use governs a suite of selective forces encountered by foragers. In a free‐living native black‐tailed deer, Odocoileus hemionus, population from coastal British Columbia, we used stable isotope analysis to identify individual variation in foraging niche and investigated its relationship to fitness. Using an intragenerational comparison of surviving and nonsurviving O. hemionus over 2 years of predation by wolves, Canis lupus, we detected resource‐specific fitness. Individuals with isotopic signatures that suggested they foraged primarily in cedar (Thuja plicata)‐dominated and low‐elevation hemlock (Tsuga heterophylla)‐dominated forest stands were more likely to be killed by C. lupus. High‐quality forage in T. plicata stands, as indexed by protein content, may be involved in maintaining this foraging phenotype. Moreover, nonsurvivors diverged more than survivors from median isotopic signatures, suggesting selection against foraging specialization. Stable isotope analysis provides a novel opportunity to integrate ecological and selective landscapes in order to identify underlying ecological mechanisms of selection and provide insight into the maintenance of variability. Text Canis lupus The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository |
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The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository |
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ftinstsciencepol |
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topic |
Canis lupus foraging behaviour individual niche natural selection Odocoileus hemionus predation stable isotope analysis Animal Studies Other Animal Sciences Other Ecology and Evolutionary Biology |
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Canis lupus foraging behaviour individual niche natural selection Odocoileus hemionus predation stable isotope analysis Animal Studies Other Animal Sciences Other Ecology and Evolutionary Biology Darimont, C. T. Paquet, P. C. Reimchen, T. E. Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
topic_facet |
Canis lupus foraging behaviour individual niche natural selection Odocoileus hemionus predation stable isotope analysis Animal Studies Other Animal Sciences Other Ecology and Evolutionary Biology |
description |
Interindividual variation in niche presents a potentially central object on which natural selection can act. This may have important evolutionary implications because habitat use governs a suite of selective forces encountered by foragers. In a free‐living native black‐tailed deer, Odocoileus hemionus, population from coastal British Columbia, we used stable isotope analysis to identify individual variation in foraging niche and investigated its relationship to fitness. Using an intragenerational comparison of surviving and nonsurviving O. hemionus over 2 years of predation by wolves, Canis lupus, we detected resource‐specific fitness. Individuals with isotopic signatures that suggested they foraged primarily in cedar (Thuja plicata)‐dominated and low‐elevation hemlock (Tsuga heterophylla)‐dominated forest stands were more likely to be killed by C. lupus. High‐quality forage in T. plicata stands, as indexed by protein content, may be involved in maintaining this foraging phenotype. Moreover, nonsurvivors diverged more than survivors from median isotopic signatures, suggesting selection against foraging specialization. Stable isotope analysis provides a novel opportunity to integrate ecological and selective landscapes in order to identify underlying ecological mechanisms of selection and provide insight into the maintenance of variability. |
format |
Text |
author |
Darimont, C. T. Paquet, P. C. Reimchen, T. E. |
author_facet |
Darimont, C. T. Paquet, P. C. Reimchen, T. E. |
author_sort |
Darimont, C. T. |
title |
Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
title_short |
Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
title_full |
Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
title_fullStr |
Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
title_full_unstemmed |
Stable Isotopic Niche Predicts Fitness of Prey in a Wolf–Deer System |
title_sort |
stable isotopic niche predicts fitness of prey in a wolf–deer system |
publisher |
WBI Studies Repository |
publishDate |
2007 |
url |
https://www.wellbeingintlstudiesrepository.org/evobio/2 https://www.wellbeingintlstudiesrepository.org/context/evobio/article/1001/viewcontent/j.1095_8312.2007.00716.x.pdf |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
Evolutionary Biology Collection |
op_relation |
https://www.wellbeingintlstudiesrepository.org/evobio/2 https://www.wellbeingintlstudiesrepository.org/context/evobio/article/1001/viewcontent/j.1095_8312.2007.00716.x.pdf |
_version_ |
1769004914298585088 |