【摘要】 2012年10月,通过对江西省九江市永修县云居山鸟类群落结构进行了调查,总共观察到41种鸟类,隶属于5目、21科。其中雀形目鸟类在个体数量和种类上都占据了绝对优势地位,白头鹎是其中的绝对优势种。在居留型组成上,留鸟无论在个体数量还是种数上都占最高比例,分别占据全部鸟类的94.4%和88.0%。云居山地区鸟类群落多样性指数为2.93,均匀性指数为0.79。在调查的四种鸟类生境中,针叶林群落鸟类多样性最高,为2.63,而灌丛群落的均匀性指数最高,达到0.87。分析结果表明栖息地生产力的高低在很大程度上决定了不同生境鸟类分布的多样性,而栖息地的相似性则决定了鸟类群落组成的相似程度。更多还原

【Abstract】 In Autumn of 2012,a survey on the avian community was conducted in Yunju Mountain of Yongxiu County,Jiangxi Province.The results showed that there were 41 species totally,which belonged to5 orders,i,e.21 families.Of these birds,Passeriformes and Ciconiiformes dominated in the proportions values of individual and species numbers.Pycnonotus sinensis was the most predominant in the whole avian community.The residents owned both the highest individual and species nos,respectively accounted to 94.4%and 88.0%of all birds.The whole avian species diversity and evenness indexes were 2.93 and 0.79 in the investigated area,respectively.The coniferous forest bird community had the highest value of species diversity(2.63),while the shrub community owned highest evenness(0.87)in all 5different habitats.In total,the level of productivity of habitat largely determined the distribution characteristics of birds in different habitats.Meanwhile,the habitat similarity determined the similar degree of the composition of avian communities in Yunju Mountain.更多还原