| Summary: | 碩士 === 國立嘉義大學 === 生物資源學系研究所 === 97 === Abstract
This thesis focused on bat fauna in relation to environment structure at two levels in central-southern Taiwan. The thesis includes two parts. In chapter 1, I investigated bat assemblages at different elevation and habitat types, and try to found the relation between bat fauna and these two large scale factors. In chapter 2, I selected three study sites at the similar elevation in Alishan area to investigate bat assemblages and try to found the relation between the small scale factors of environment structures and bat fauna.
Chapter1
From January 2005 to November 2007, Taiwan Endemic Species Research Institute（TESRI）cooperated with the department of Biological Resources of national Chiayi University to conduct an bat fauna survey project on 73 investigated plots selected in 5 counties of central-southern Taiwan. In each investigated plot, we used mist nets and harp traps to catch flying bats and corrected the data of elevation and habitat for analyzing the relationship of bat fauna and environment. Total 941 individuals belong to 26 species were captured. Using this data, I analysis the relation between bat fauna, elevation and habitat types. The result showed that bat abundant basically exhibited two peaks along with the elevation ranges in Taiwan, and high similarities of bat assemblages in the near elevation zones and similar habitat types. Besides, according to specific relation between bat species and elevation, it seemed could be distinguish into 4 categories: (a) extensively; (b) preferred above 1,500m; (c) preferred specific or non-continuous elevation zones and (d) preferred under 1,500m.
Chapter 2
The distribution of the bat correlates with weather factors and environmental factors. For understanding the correlations of bat fauna and small-scale environmental factors, I selected three study sites at the similar elevation in Alishan area (2,000 ~ 2,500m in Alishan National Scenic Area and Lulin Mountain), to investigate bat assemblages and measure small-scale factors of environment structures. From March to November in 2008, a total of 229 bats belong to 15 bat species were captured. The bat fauna was intensely correlated to several environment factors. Also, different species of bats were preference for distinct environments. In addition, there were different daily and seasonal activity patterns among bat genus. Finally, I summarize these correlations between bat assemblages and the environment in study areas.
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