Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15433 |
Climatic drivers of (changes in) bat migration phenology at Bracken Cave (USA) | |
Birgen Haest; Phillip M. Stepanian; Charlotte E. Wainwright; Felix Liechti; Silke Bauer | |
2020-11-19 | |
发表期刊 | Global Change Biology
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出版年 | 2020 |
英文摘要 | Climate change is drastically changing the timing of biological events across the globe. Changes in the phenology of seasonal migrations between the breeding and wintering grounds have been observed across biological taxa, including birds, mammals, and insects. For birds, strong links have been shown between changes in migration phenology and changes in weather conditions at the wintering, stopover, and breeding areas. For other animal taxa, the current understanding of, and evidence for, climate (change) influences on migration still remains rather limited, mainly due to the lack of long‐term phenology datasets. Bracken Cave in Texas (USA) holds one of the largest bat colonies of the world. Using weather radar data, a unique 23‐year (1995–2017) long time series was recently produced of the spring and autumn migration phenology of Brazilian free‐tailed bats (Tadarida brasiliensis) at Bracken Cave. Here, we analyse these migration phenology time series in combination with gridded temperature, precipitation, and wind data across Mexico and southern USA, to identify the climatic drivers of (changes in) bat migration phenology. Perhaps surprisingly, our extensive spatiotemporal search did not find temperature to influence either spring or autumn migration. Instead, spring migration phenology seems to be predominantly driven by wind conditions at likely wintering or spring stopover areas during the migration period. Autumn migration phenology, on the other hand, seems to be dominated by precipitation to the east and north‐east of Bracken Cave. Long‐term changes towards more frequent migration and favourable wind conditions have, furthermore, allowed spring migration to occur 16 days earlier. Our results illustrate how some of the remaining knowledge gaps on the influence of climate (change) on bat migration and abundance can be addressed using weather radar analyses. |
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/304276 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Birgen Haest,Phillip M. Stepanian,Charlotte E. Wainwright,et al. Climatic drivers of (changes in) bat migration phenology at Bracken Cave (USA)[J]. Global Change Biology,2020. |
APA | Birgen Haest,Phillip M. Stepanian,Charlotte E. Wainwright,Felix Liechti,&Silke Bauer.(2020).Climatic drivers of (changes in) bat migration phenology at Bracken Cave (USA).Global Change Biology. |
MLA | Birgen Haest,et al."Climatic drivers of (changes in) bat migration phenology at Bracken Cave (USA)".Global Change Biology (2020). |
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