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| DOI | 10.1111/ele.12871 |
| Climate mediates the success of migration strategies in a marine predator | |
| Abrahms B.; Hazen E.L.; Bograd S.J.; Brashares J.S.; Robinson P.W.; Scales K.L.; Crocker D.E.; Costa D.P. | |
| 发表日期 | 2018 |
| ISSN | 1461023X |
| 卷号 | 21期号:1 |
| 英文摘要 | Individual behavioural specialisation has far-reaching effects on fitness and population persistence. Theory predicts that unconditional site fidelity, that is fidelity to a site independent of past outcome, provides a fitness advantage in unpredictable environments. However, the benefits of alternative site fidelity strategies driving intraspecific variation remain poorly understood and have not been evaluated in different environmental contexts. We show that contrary to expectation, strong and weak site fidelity strategies in migratory northern elephant seals performed similarly over 10 years, but the success of each strategy varied interannually and was strongly mediated by climate conditions. Strong fidelity facilitated stable energetic rewards and low risk, while weak fidelity facilitated high rewards and high risk. Weak fidelity outperformed strong fidelity in anomalous climate conditions, suggesting that the evolutionary benefits of site fidelity may be upended by increasing environmental variability. We highlight how individual behavioural specialisation may modulate the adaptive capacity of species to climate change. © 2017 John Wiley & Sons Ltd/CNRS |
| 英文关键词 | Behavioural strategy; climate variability; foraging ecology; habitat selection; individual specialisation; migration; Mirounga angustirostris; northern elephant seal; resource predictability; site fidelity |
| 语种 | 英语 |
| scopus关键词 | Mirounga angustirostris; animal; climate change; Phocidae; population migration; Animal Migration; Animals; Climate Change; Seals, Earless |
| 来源期刊 | Ecology Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/121377 |
| 作者单位 | NOAA Southwest Fisheries Science Center, Environmental Research Division, 99 Pacific St. #255A, Monterey, CA 93940, United States; Department of Ecology and Evolutionary Biology, University of California Santa Cruz, 115 McAllister Way, Santa Cruz, CA 95060, United States; Department of Environmental Science, Policy, and Management, University of California Berkeley, 130 Mulford Hall #3114, Berkeley, CA 94720, United States; University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Qld, Australia; Department of Biology, Sonoma State University, 1801 East Cotati Avenue, Rohnert Park, CA 94928, United States |
| 推荐引用方式 GB/T 7714 | Abrahms B.,Hazen E.L.,Bograd S.J.,et al. Climate mediates the success of migration strategies in a marine predator[J],2018,21(1). |
| APA | Abrahms B..,Hazen E.L..,Bograd S.J..,Brashares J.S..,Robinson P.W..,...&Costa D.P..(2018).Climate mediates the success of migration strategies in a marine predator.Ecology Letters,21(1). |
| MLA | Abrahms B.,et al."Climate mediates the success of migration strategies in a marine predator".Ecology Letters 21.1(2018). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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