GSTDTAP  > 气候变化
DOI10.1111/gcb.14051
Ongoing changes in migration phenology and winter residency at Bracken Bat Cave
Stepanian, Phillip M.; Wainwright, Charlotte E.
2018-07-01
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2018
卷号24期号:7页码:3266-3275
文章类型Article
语种英语
国家England
英文摘要

Bats play an important role in agroecology and are effective bioindicators of environmental conditions, but little is known about their fundamental migration ecology, much less how these systems are responding to global change. Some of the world's largest bat populations occur during the summer in the south-central United States, when millions of pregnant females migrate from lower latitudes to give birth in communal maternity colonies. Despite a relatively large volume of research into these colonies, many fundamental questions regarding their abundance-including their intra- and interseasonal variability-remain unanswered, and even estimating the size of individual populations has been a long-running challenge. Overall, monitoring these bat populations at high temporal resolution (e.g., nightly) and across long time spans (e.g., decades) has been impossible. Here, we show 22 continuous years of nightly population counts at Bracken Cave, a large bat colony in south-central Texas, enabling the first climate-scale phenological analysis. Using quantitative radar monitoring, we found that spring migration and the summer reproductive cycle have advanced by approximately 2weeks over the study period. Furthermore, we quantify the ongoing growth of a newly-established overwintering population that indicates a system-wide response to changing environmental conditions. Our observations reveal behavioral plasticity in bats' ability to adapt to changing resource availability, and provide the first long-term quantification of their response to a changing climate. As aerial insectivores, these changes in bat phenology and propensity for overwintering indicate probable shifts in prey availability, with clear implications for pest management across wider regional agrisystems.


英文关键词bats migration overwintering phenology radar remote sensing Tadarida
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000437281500042
WOS关键词FREE-TAILED BATS ; TADARIDA-BRASILIENSIS-MEXICANA ; CLIMATE-CHANGE ; HIGH-ALTITUDE ; COLONIES ; SIZE ; CONSERVATION ; DECLINES ; BEHAVIOR ; LINKS
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
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/17003
专题气候变化
资源环境科学
作者单位Rothamsted Res, Computat & Analyt Sci Dept, Harpenden, Herts, England
推荐引用方式
GB/T 7714
Stepanian, Phillip M.,Wainwright, Charlotte E.. Ongoing changes in migration phenology and winter residency at Bracken Bat Cave[J]. GLOBAL CHANGE BIOLOGY,2018,24(7):3266-3275.
APA Stepanian, Phillip M.,&Wainwright, Charlotte E..(2018).Ongoing changes in migration phenology and winter residency at Bracken Bat Cave.GLOBAL CHANGE BIOLOGY,24(7),3266-3275.
MLA Stepanian, Phillip M.,et al."Ongoing changes in migration phenology and winter residency at Bracken Bat Cave".GLOBAL CHANGE BIOLOGY 24.7(2018):3266-3275.
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