執行成果摘要
Ten additional northeastern Taiwan forest wetlands were surveied in this year. To compile previous three years (99-101 years) 30 forests wetlands data, and explore the ecological character of wetlands in a larger-scale. Botanical survey results indicated that a total of 273 species of vascular plants were recorded, including 37 rare and endangered species. Among thirty forest wetlands, Shuanglianpi have the most abundant plant species (71 species), Fulong 1st pool (2 species) was least. Wetland plant species abundance has positive correlation with wetland area but negative with altitude. It is suggested that larger wetland area has lager micro-habitat diversity which benefit various plants living. However, lower temperate decreases plant species diversity. In addition, higher plant species live in more stable water level throughout the year than unstalber ones. In animal composition, 54 dragon flies were recorded in all 30 wetlands. Libellulidae and Coenagrionidae are dominant families. In addition, 8 species, 416 individuals of frogs were recorded in 11 wetlands. Similiar to plant diversity, dragon flies abundance is positive with forest wetlands area and water conductivity, but negative temperate. It refects that larger wetland area and higer water salinity benefit various dragon flies living. However, lower temperate decreases dragon flies species diversity. Higher dragon flies species live in more stable water level throughout the year than unstalber ones. In addition, 8 species, 416 individuals of frogs were recorded in 11 wetlands. Of them, Rhacophorus moltrechti and Kurixalus idiootocus are endemic to Taiwan.