Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/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
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
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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