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Precipitation is the dominant driver for bird species richness,phylogenetic and functional structure in university campuses in northern China

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Avian Research 2020年第3期11卷 302-309页

作者： Chenxia Liang Jun Liu Bin Pan Na Wang Jie Yang Guisheng Yang Gang Feng Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau&Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China College of Life Sciences Inner Mongolia UniversityHohhot 010070China Inner Mongolia University of Finance and Economics Hohhot 010051China

Background:Although urbanization is threatening biodiversity worldwide,the increasing green urban spaces could harbor relatively high ***,how to maintain the biodiversity in urban ecosystem is crucial for sustainable urban planning and management,especially in arid and semiarid regions with relatively fragile environment and low ***,for the first time we linked species richness,phylogenetic and functional structure of bird assemblages in university campuses in northern China with plant species richness,glacial-interglacial climate change,contemporary climate,and anthropogenic factors to compare their relative roles in shaping urban bird ***:bird surveys were conducted in 20 university campuses across Inner Mongolia,*** least squares models and simultaneous autoregressive models were used to assess the relationships between bird species richness,phylogenetic and functional structure with environmental *** equation models were used to capture the direct and indirect effects of these factors on the three components of bird ***:Single-variable simultaneous autoregressive models showed that mean annual precipitation was consistently a significant driver for bird species richness,phylogenetic and functional ***,mean annual temperature and plant species richness were also significant predictors for bird species ***:This study suggests that campuses with warmer and wetter climate as well as more woody plant species could harbor more bird *** addition,wetter campuses tended to sustain over-dispersed phylogenetic and functional *** findings emphasize the dominant effect of precipitation on bird diversity distribution in this arid and semiarid region,even in the urban ecosystem.

关键词： Climate Human factors Functional structure Phylogenetic structure urban bird diversity Woody plant diversity

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