Yu Chen-Xing, Yang Gang, Li Dong, Zhou Fang
College of Animal Sciences and Technology, Guangxi University, Nanning 530005, China.
Dongwuxue Yanjiu. 2011 Oct;32(5):549-55. doi: 10.3724/SP.J.1141.2011.05549.
The Karst mountain area along the Sino-Vietnam border of southwest Guangxi has been designated a "Global Biodiversity Hotspot" since 2003. We conducted a survey of pheasant species in this area, with seven species recorded, namely Chinese Francolin (Francolinus pintadeanus), Bar-backed Partridge (Arborophila brunneopectus), Mountain Bamboo Partridge (Bambusicola fytchii), Chinese Bamboo Partridge (Bambusicola thoracica), Red Junglefowl (Gallus gallus), Silver Pheasant (Lophura nycthemera) and Common Pheasant (Phasianus colchicus). Analysis and comparison of the distribution and spatial niche of these seven pheasant species revealed that Red Junglefowl had the widest spatial niche, while Chinese Francolin had the narrowest. The spatial niche overlap index was high between Chinese Francolin and the Common Pheasant, Chinese Bamboo Partridge, and Red Junglefowl. With narrow distribution range, small population, and lower ecological adaptability, it is likely that the Bar-backed Partridge is the most vulnerable pheasant species in this area. The results suggest more research and conservation measures are required for pheasant habitat protection in the Karst areas of southwest Guangxi.
自2003年以来，广西西南部中越边境的喀斯特山区被指定为“全球生物多样性热点地区”。我们对该地区的雉鸡种类进行了调查，记录到7种，即鹧鸪（Francolinus pintadeanus）、斑翅山鹑（Arborophila brunneopectus）、棕胸竹鸡（Bambusicola fytchii）、中华竹鸡（Bambusicola thoracica）、原鸡（Gallus gallus）、白鹇（Lophura nycthemera）和雉鸡（Phasianus colchicus）。对这7种雉鸡的分布和空间生态位进行分析和比较后发现，原鸡的空间生态位最广，而鹧鸪的最窄。鹧鸪与雉鸡、中华竹鸡和原鸡之间的空间生态位重叠指数较高。斑翅山鹑分布范围狭窄、种群数量少且生态适应性较低，很可能是该地区最易受威胁的雉鸡种类。研究结果表明，需要对广西西南部喀斯特地区的雉鸡栖息地保护开展更多研究并采取保护措施。
