Study on the Resource partitioning of frogs community in a still water pond located at the north of Taiwan.

• Main Authors: Pao-Ling Kao, 高保齡
• Other Authors: Kuang-Yang Lue
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/91750083039171442191

碩士 === 國立師範大學 === 生物學研究所 === 82 === The resource partitioning of frog community in a small still water pond werestudied from October,1992 to March ,1994 at Tatung Shan Area near Feitsui Dam in northern of Taiwan . There were 12 species in 5 families of frogs were recorded during the research period. Because very few of the datas, Rana narian swinhoana and Rana limnocharis limnocharis were excluded form this study. The other 10 species were clustered by cluster analysis, base on the microhabitat they used. There were 3 groups in this community.Rhacophorus smaragdinus,Polypedates megacephalus , Chirixxalus idiootocus, Hyla chinensis and Rhacophorus taipeianus in one group, I called them tree dwelling group. Rana latouchii, Rana adenopleura, Rana longicrus, Bufo bufo gargarizans in one group, I called them Land dwelling group. The special one is Microhyla ornata, it in one group by itself. The majority microhabitat Microhyla ornata chose was grass land. The result of Principle omponent Analysis(PCA) showed that the tree dwelling group relyed on tree, the water attaracted the land dwelling group. The activity area of MIcrohyla ornata was most far away from pond. In tree dwelling group, the perched height of Hyla chinensis and Rhacophorus smaragdinus were different with the other 3 species. Rhacophorus smaragdinus appeared all over the year, the peak of activity falled on March to April and September to October. Rhacophorus taipeianus appeared in winter. Hyla chinensis, Polypedates megacephalus and Chirixalus idiootocus appeared from March to August, the peak was seperated with Rhacophorus smaragdinus. Rhacophorus smaragdinus and Polypedates megacephalus laied their egg mass on the tree, the Rhacophorus taipeianus laied its egg mass on the hole of ground. In land dwelling species, Rana latouchii , Rana longicrus and Bufo bufo gargarizans activity in winter, Rana adenopleura appeared in summer. Different with the other, Rana latouchii make its egg attached on the fallen leaves in the water. Mycohyla ornata also appeared from March to August. There were no obviously difference in food habit of these frogs. The empty stomach easly found on tree dwelling species and they didn't choose the food only living on the ground. Bufo bufo gargarizans was most complicated in choosing food . Micohyla ornata prefered ants. The average breadth of Niche on microhabitate , time and food dimensions , Rhacophorus smaragdinus was heighest in tree dwelling group(3.27), Rana latouchii was heighest in land dwelling group(5.56), Microhyla ornata located in the middle (4.56). The degree of intragroup Nich overlap was heigher than itergroup.