Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15445 |
Climate‐driven carry‐over effects negatively influence population growth rate in a food‐caching boreal passerine | |
Alex O. Sutton; Dan Strickland; Nikole E. Freeman; D. Ryan Norris | |
2020-12-21 | |
发表期刊 | Global Change Biology |
出版年 | 2020 |
英文摘要 | Understanding how events throughout the annual cycle are linked is important for predicting variation in individual fitness, but whether and how carry‐over effects scale up to influence population dynamics is poorly understood. Using 38 years of demographic data from Algonquin Provincial Park, Ontario, and a full annual cycle integrated population model, we examined the influence of environmental conditions and density on the population growth rate of Canada jays (Perisoreus canadensis), a resident boreal passerine that relies on perishable cached food for over‐winter survival and late‐winter breeding. Our results demonstrate that fall environmental variables, most notably the number of freeze–thaw events, carried over to influence late‐winter fecundity, which, in turn, was the main vital rate driving population growth. These results are consistent with the hypothesis that warmer and more variable fall conditions accelerate the degradation of perishable stored food that is relied upon for successful reproduction. Future warming during the fall and winter may compromise the viability of cached food that requires consistent subzero temperatures for effective preservation, potentially exacerbating climate‐driven carry‐over effects that impact long‐term population dynamics. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/311311 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Alex O. Sutton,Dan Strickland,Nikole E. Freeman,等. Climate‐driven carry‐over effects negatively influence population growth rate in a food‐caching boreal passerine[J]. Global Change Biology,2020. |
APA | Alex O. Sutton,Dan Strickland,Nikole E. Freeman,&D. Ryan Norris.(2020).Climate‐driven carry‐over effects negatively influence population growth rate in a food‐caching boreal passerine.Global Change Biology. |
MLA | Alex O. Sutton,et al."Climate‐driven carry‐over effects negatively influence population growth rate in a food‐caching boreal passerine".Global Change Biology (2020). |
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