楠梓仙溪林道鳥類群聚研究

本研究之主要目的在探討玉山國家公園楠梓仙溪地區鳥類群聚組成在空間的變化，並提出適當的鳥類監測方式。2007 年 2 月至 2008 年 9 月在楠溪林道 3 k 至 14 k 共調查到 60 種鳥類，其中保育類有 20 種。楠溪林道闊葉林山坡帶的鳥類群聚有較多數量、種類及較高的多樣性，與溪谷有顯著差異；前者應是監測鳥類多樣性的較佳地區。白耳畫眉、繡眼畫眉及冠羽畫眉皆為楠溪林道闊葉林帶的代表性鳥種，建議列為必須長期監測族群量的物種。楠溪林道 3 k 至 14 k (海拔高分別為 2610 m 及 1720 m) 的鳥類群聚分為 2 群，建議在海拔2200 m 以上及下分別進行監測。The primary objective of this study is to investigate the spatial variation in avian community composition in the Nanhsien Stream area of Yushan National Park, and to propose appropriate avian monitoring methods. From February 2007 to September 2008, a total of 60 bird species were recorded along the 3 km to 14 km section of Nanxi Forest Road, among which 20 are protected species. The avian communities in the broad-leaved forest slope zones along Nanxi Forest Road exhibit higher abundance, species richness, and diversity, with significant differences from those in the valley areas; the former should be considered a more optimal site for avian diversity monitoring. White-eared Laughingthrush, Japanese White-eye, and Taiwan Yuhina are all representative bird species in the broad-leaved forest zones along Nanxi Forest Road, and are recommended as species requiring long-term population monitoring. The avian communities in the 3 km to 14 km section of Nanxi Forest Road (with elevations of 2610 m at the 3 km marker and 1720 m at the 14 km marker, respectively) are divided into two clusters, and it is recommended to conduct separate monitoring at areas above 2200 m and below 2200 m.