Selections and Analyses of Avian Biodiversity Hotspots in East Asia

• Main Authors: Li-June Ho, 何麗君
• Other Authors: Tzung-Su Ding
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/90313394678593890477

碩士 === 國立臺灣大學 === 森林學研究所 === 93 === The selections and analyses of biodiversity hotspot are critical for establishing protected areas. Using a 100×100 km grid system of bird breeding ranges in East Asia, I compared the spatial correlation of biodiversity hotspots selected by (1) total species richness, (2) limited-ranged species richness, (3) endangered species richness, and (4) complementary method. Furthermore, I examined the distribution of species richness of various avian orders and families and the correlation among species richness, genus richness, and family richness. I found that there were low spatial correlations among biodiversity hotspots selected by different methods. With same area, the hotspots selected by complementary method covered more species than other methods. There were high correlations among species richness, genus richness, and family richness. I conclude the hotspots of total species, limited-ranged species, and endangered species were not congruent with each other. In selecting protected areas, hotspots of limited-ranged species and endangered species should be given priorities and using complementary method could maximize the species covered by a given area and increase the efficiency of protected areas. Genus richness could be a good surrogate of species richness if obtaining species richness is difficult for field investigation.