Impacts on Bats by a Supertyphoon vs.Ordinary Typhoons along a Habitat Urbanization Gradient  

作　　者：Vladimir Dinets Nicholas R.Friedman Masako Ogasawara Masashi Yoshimura Evan P.Economo 

机构地区：[1]Science and Technology Group,Okinawa Institute of Science and Technology Graduate University,1919-1 Tancha,Onna-son,Okinawa,904-0495,Japan [2]Department of Psychology,University of Tennessee,1404 Circle Drive,Knoxville,TN 37996,USA 3 [3]Biodiversity and Biocomplexity Unit,Okinawa Institute of Science and Technology Graduate University,1919-1 Tancha,Onna-son,Okinawa,904-0495,Japan

出　　处：《Research in Ecology》2023年第2期14-27,共14页生态学研究（英文）

摘　　要：Two major human-caused threats to ecosystems are habitat modification and the increasing frequency and intensity of extreme weather events.To study the combined effect of these threats,the authors used acoustic monitoring of bats along a habitat modification gradient on the island of Okinawa,Japan.During the observation period,the island experienced numerous typhoons and one supertyphoon.Native bat species remained active even at high wind speeds(up to 30 m/s in some cases).Milder typhoons had no observable effect on bat populations,with activity levels fully recovering within a few hours or days.The super typhoon also did not seem to affect bats in fully or partially forested habitats but caused their local disappearance at the urban site,which they have not re-colonized three years after the event.Notably,bats that disappeared at the urban site were species roosting in well-protected places such as caves and concrete structures.In all cases,the biomass of small flying insects and the acoustic activity of insects recovered within days after extreme weather events.Thus,the striking difference between habitats in supertyphoon effects on bats cannot be explained by the super typhoon directly killing bats,destroying their roosting sites,or decreasing the abundance of their prey.The results underscore the importance of preserving natural habitats in areas particularly affected by changing climate and show that the survival of species and ecosystems during the numerous episodes of climate change in the Earth’s history does not necessarily mean their ability to survive the accelerating climate change of our time.

关 键 词：Acoustic monitoring CHIROPTERA Climate change Extreme weather events Hurricanes OKEON OKINAWA Urbanization gradient 

分 类 号：P44[天文地球—大气科学及气象学]