气候变化领域集成服务门户(CCPortal): Higher and bigger: How riparian bats react to climate change

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DOI	10.1016/j.scitotenv.2023.169733
	Higher and bigger: How riparian bats react to climate change
	Russo, Danilo; Jones, Gareth; Polizzi, Marta; Meola, Vincenzo; Cistrone, Luca
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	913
卷号	913
英文摘要	The altitudinal distribution of animals and changes in their body size are effective indicators of climate change. Bats are sensitive to climate change due to their dependence on temperature during critical life stages. However, long-term studies documenting responses over extended periods are rare. We present a 24-year investigation of Myotis daubentonii, a riparian bat known for altitudinal sexual segregation, along a river course in Central Italy. While males occupy the entire river course, females are confined to downstream warmer areas supporting successful reproduction due to improved foraging site productivity. In 2000, females were absent above 900 m a. s.l in our study area. We hypothesise that a) this altitude threshold is now higher, due to thermal gradient changes along the river course; and b) thermoregulatory costs for reproductive females have declined, leading to increased energy investment in offspring and subsequent generational growth in bat body size. Confirming our hypotheses, females exhibited a 175-m upward shift in altitude limit. Furthermore, we found a concurrent increase in body size (but not condition). Temperatures increased in the 24 years, likely allowing females to extend their range to higher elevations and favouring an increase in newborn body mass. Riparian vegetation remained unchanged, excluding habitat quality changes as the cause for the observed responses. The rapid female elevation rise might imply future disruption of established social structures, altering intra- and intersexual competition for roosts and food. Given the global decline in insect populations, larger bats might face future difficulties in finding food to sustain their body size, increasing mortality. However, the full impact of such changes on bat fitness remains unexplored and warrants further investigation, including other bat populations. This knowledge is crucial for informing conservation in the face of ongoing climate change and preserving the ecosystem services bats deliver in riparian ecosystems.
英文关键词	Altitude; Body size; Chiroptera; Climate change; Riparian ecosystems; Temperature
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001154688000001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307812
作者单位	University of Naples Federico II; University of Bristol; Sapienza University Rome
推荐引用方式 GB/T 7714	Russo, Danilo,Jones, Gareth,Polizzi, Marta,et al. Higher and bigger: How riparian bats react to climate change[J],2024,913.
APA	Russo, Danilo,Jones, Gareth,Polizzi, Marta,Meola, Vincenzo,&Cistrone, Luca.(2024).Higher and bigger: How riparian bats react to climate change.SCIENCE OF THE TOTAL ENVIRONMENT,913.
MLA	Russo, Danilo,et al."Higher and bigger: How riparian bats react to climate change".SCIENCE OF THE TOTAL ENVIRONMENT 913(2024).