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Impacts on Bats by a Supertyphoon *** Typhoons along a Habitat urbanization gradient

Research in Ecology 2023年第2期5卷 14-27页

作者： Vladimir Dinets Nicholas R.Friedman Masako Ogasawara Masashi Yoshimura Evan P.Economo Science and Technology Group Okinawa Institute of Science and Technology Graduate University1919-1 TanchaOnna-sonOkinawa904-0495Japan Department of Psychology University of Tennessee1404 Circle DriveKnoxvilleTN 37996USA 3 Biodiversity and Biocomplexity Unit Okinawa Institute of Science and Technology Graduate University1919-1 TanchaOnna-sonOkinawa904-0495Japan

Two major human-caused threats to ecosystems are habitat modification and the increasing frequency and intensity of extreme weather *** study the combined effect of these threats,the authors used acoustic monitoring of bats along a habitat modification gradient on the island of Okinawa,*** the observation period,the island experienced numerous typhoons and one *** 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 *** 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 ***,bats that disappeared at the urban site were species roosting in well-protected places such as caves and concrete *** all cases,the biomass of small flying insects and the acoustic activity of insects recovered within days after extreme weather ***,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 *** 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

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urbanization reduces resource use efficiency of phytoplankton community by altering the environment and decreasing biodiversity

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Journal of Environmental Sciences 2022年第2期34卷 140-151页

作者： Yigang Yang Huihuang Chen Mamun Abdullah Al Jean Claude Ndayishimiye Jun R Yang Alain Isabwe Anqi Luo Jun Yang Aquatic EcoHealth Group Fujian Key Laboratory of Watershed EcologyKey Laboratory of Urban Environment and HealthInstitute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China Engineering Research Center of Ecology and Agricultural Use of Wetland(Ministry of Education) College of AgricultureYangtze UniversityJingzhou 434025China

urbanization often exerts multiple effects on aquatic and terrestrial organisms,including changes in biodiversity,species composition and ecosystem ***,the impacts of urbanization on river phytoplankton in subtropical urbanizing watersheds remain largely ***,we explored the effects of urbanization on phytoplankton community structure(i.e.,biomass,community composition and diversity)and function(i.e.,resource use efficiency)in a subtropical river at watershed scale in southeast China over 6 years.A total of 318 phytoplankton species belonging into 120 genera and 7 phyla were identified from 108 *** biomass showed an increasing trend with increasing urbanization *** phytoplankton community shifted from Chlorophyta dominance in rural upstream waters to Bacillariophyta dominance in urbanized downstream ***,phytoplankton diversity and resource use efficiency(RUE=phytoplankton biomass/total phosphorus)were significantly decreased with increasing urbanization level from upstream to *** RUE exhibited a significant positive correlation with species richness,but a negative correlation with phytoplankton *** variation in environmental factors(turbidity,total nitrogen,NH_(4)^(+)-N,total phosphorus,PO_(4)^(3-)-P and percentage urbanized area)was significantly correlated with phytoplankton diversity and ***,our results revealed the influence of urbanization on phytoplankton community structure and ecosystem function was due to its altering the environmental ***,human-driven urbanization may play crucial roles in shaping the structure and function of phytoplankton communities in subtropical rivers,and the mechanism of this process can provide important information for freshwater sustainable uses,watershed management and conservation.

关键词： Plankton Community functioning Subtropical river urbanization gradient Land use Watershed ecology

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Urban avifauna distribution explained by road noise in an Eastern European city

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Avian Research 2022年第4期13卷 445-453页

作者： Alfred-Stefan Cicort-Lucaciu Hanem-Vera Keshta Paula-Vanda Popovici David Munkacsi Ilie-Catalin Telcean Carmen Gache Department of Biology Faculty of Informatics and SciencesUniversity of Oradea1 Universitații Str.410087OradeaBihor CountyRomania Independent Researcher 2 Alexandru Roman Str.415200BeiușBihor CountyRomania “înv.Galgau Iosif”Secondary School 61 Pagaia417063Boianu MareBihor CountyRomania “Miskolczy Karoly”Secondary School 197 Mișca417183ChișlazBihor CountyRomania “Kazinczy Ferenc”Secondary School 602 Simian417545SimianBihor CountyRomania “Toldy”Secondary School 26 Sannicolau de Munte417441SacuieniBihor CountyRomania “Mihail Eminescu”National College 18 Roman Ciorogariu Str.410017OradeaBihor CountyRomania Technological High School No.1 48 de Jos Str.Cadea417436SacuieniBihor CountyRomania Department of Biology Faculty of Biology“Alexandru Ioan Cuza”University11A Bd.Carol I Str.700505IașiIași CountyRomania

In Eastern Europe,efforts are being made for road infrastructure development,as this area has not yet reached the level of that in the *** noise negatively affects birds,especially in urban ***,seven green spaces from an Eastern European city were monitored,which were selected according to the urbanization gradient and the hydrographic peculiarities of the *** correlation between species richness and human population density,urban mobility,or road noise was *** three factors together explained over 99%of species richness distribution in habitats and during study *** noise was the strongest predictor and the most negative influencer of bird *** correlations were higher when we also considered the variability of species in habitats over time,instead of the total species richness of a habitat,as it expresses more accurately the impact of noise on the presence of *** presence of species has decreased from one habitat to another along the urbanization gradient,from the edge of the city to the center,both in the case of terrestrial and aquatic green *** most central park differed significantly from the other terrestrial green spaces in the *** the same time,no significant differences were registered between the aquatic habitats or the rest of the terrestrial *** ideal mitigation measure in this case would be that there are no roads in the immediate vicinity of green ***,if this is not possible(as in the case of all the existing green spaces in a city),we discuss/recommend placing noise barriers at the edge of green spaces or high-speed roads.

关键词： Road noise Urban green spaces urbanization gradient

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