应用样线法,调查海子山自然保护区鸟类的组成和群落结构,经调查确认保护区内有鸟类16目48科210种,以留鸟和夏候鸟为主,鸟类区系成分复杂,古北界种类略占优势。根据鸟类栖息地的生境类型,将保护区鸟类划分为5个群落。调查得知,不同群落...应用样线法,调查海子山自然保护区鸟类的组成和群落结构,经调查确认保护区内有鸟类16目48科210种,以留鸟和夏候鸟为主,鸟类区系成分复杂,古北界种类略占优势。根据鸟类栖息地的生境类型,将保护区鸟类划分为5个群落。调查得知,不同群落的优势种、常见种有较大差异;同一群落类型的物种组成、数量、遇见频次的季节差异明显。运用Shannon Weinner指数计算各群落的多样性;采用E=H/Hmax计算群落中各群落物种的均匀度;用百分率相似性数(index of percent similarity)对各群落做相似性比较。结果表明:保护区内鸟类群落结构与各群落类型内部的空间异质性程度密切相关,群落的空间结构越复杂,则物种多样性就越高;湿地鸟类群落的均匀度指数最高,而高山灌丛鸟类群落的均匀度指数最低;各群落类型百分比相似性指数均较低;鸟类群落结构具有较大差异。展开更多
Two surveys of the diversity of large and medium sized mammal species of the Haizishan Nature Reserve,Sichuan Province,China were conducted in 2003-2004.Thirty-four mammal species and 475 trails or individuals were do...Two surveys of the diversity of large and medium sized mammal species of the Haizishan Nature Reserve,Sichuan Province,China were conducted in 2003-2004.Thirty-four mammal species and 475 trails or individuals were documented along 70 routes.Mammals were most abundant in alpine shrub habitat.At higher elevations,we noted a trend toward a gradually increasing proportion of Palearctic mammal species and a decreasing proportion of Oriental mammal species;this change occured between 3 800-4 400 m.Between 4 400-4 700 m,62% of the mammal fauna is of Palearctic origin;above 4 700 m the fauna is exclusively Palearctic.Among the 34 mammal species,the Wapti,Serow,Goral and Blue sheep have the broadest elevational ranges and are widely distributed in the area.During these surveys,the Roan musk deer was found to be the most common species in the area.展开更多
文摘应用样线法,调查海子山自然保护区鸟类的组成和群落结构,经调查确认保护区内有鸟类16目48科210种,以留鸟和夏候鸟为主,鸟类区系成分复杂,古北界种类略占优势。根据鸟类栖息地的生境类型,将保护区鸟类划分为5个群落。调查得知,不同群落的优势种、常见种有较大差异;同一群落类型的物种组成、数量、遇见频次的季节差异明显。运用Shannon Weinner指数计算各群落的多样性;采用E=H/Hmax计算群落中各群落物种的均匀度;用百分率相似性数(index of percent similarity)对各群落做相似性比较。结果表明:保护区内鸟类群落结构与各群落类型内部的空间异质性程度密切相关,群落的空间结构越复杂,则物种多样性就越高;湿地鸟类群落的均匀度指数最高,而高山灌丛鸟类群落的均匀度指数最低;各群落类型百分比相似性指数均较低;鸟类群落结构具有较大差异。
文摘Two surveys of the diversity of large and medium sized mammal species of the Haizishan Nature Reserve,Sichuan Province,China were conducted in 2003-2004.Thirty-four mammal species and 475 trails or individuals were documented along 70 routes.Mammals were most abundant in alpine shrub habitat.At higher elevations,we noted a trend toward a gradually increasing proportion of Palearctic mammal species and a decreasing proportion of Oriental mammal species;this change occured between 3 800-4 400 m.Between 4 400-4 700 m,62% of the mammal fauna is of Palearctic origin;above 4 700 m the fauna is exclusively Palearctic.Among the 34 mammal species,the Wapti,Serow,Goral and Blue sheep have the broadest elevational ranges and are widely distributed in the area.During these surveys,the Roan musk deer was found to be the most common species in the area.
