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A Comparison of Habitat Use by Wintering bean goose and Common Crane in Yeya Lake Wetlands

湿地科学 2020年第6期18卷 679-686页

作者： CAO Zhen WANG Zhenjie WANG Yang SONG Shikai HONG Jianming GAO De Department of Chemical and Environmental Engineering Hebei College of Industry and TechnologyShijiazhuang 050091HebeiP.R.China Department of Resources and Environmental Science Hebei Normal UniversityShijiazhuang 050024HebeiP.R.China Department of Life Science Capital Normal UniversityBeijing 100048P.R.China

Identifying the habitat use in relation with time between 2 bird species in a wetland can help our understanding of how wintering bird species interact and coexist in the same *** detection probabilities of bean goose(Anser fabalis)and Common Crane(Grus grus)were investigated in Yeyahu Wetland Nature Reserve in Beijing over a whole wintering ***,how use proportion of each type of habitats varied with time for 2 bird species was *** the detection probability study,the method of fixed-radius point was used to observe and infer the presence of *** occupancy model was applied to deal with the occupancy of a sampling unit,accounting for imperfect *** the survey for habitat use,the types of habitats that 2 bird species were occupying were investigated by a line-transect ***,the method of multinomial logistic regression was applied to compare the proportions that various types of habitats were used during the days after 2 bird species *** parameters of the detection probability model and multinomial logistic regression equation in a Bayesian framework using Markov Chain Monte Carlo(MCMC)simulations were *** detection probability model was used to predict that bean goose arrived in Yeya Lake Wetlands in the middle of October and left at the end of March next year,whereas Common Crane arrived at the end of October and left in the middle of April next year,with almost 5 months coexisting in Yeya Lake *** result of the multinomial logistic regression showed bean goose gradually decreased use proportion of the water but increased use proportion of grassland over time,and use proportion of farmland remained constant at the beginning but declined *** Crane decreased use proportions of the water and grassland but increased that of farmland over *** Cranes were more competitive for farmland *** was implied that bean goose and Common Crane adjusted and segregated the use proportion

关键词： bean goose Common Crane habitat coexistence wintering Yeya Lake Wetland

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