广西柳州不同城市化梯度的繁殖鸟类多样性  

Diversity of Breeding Birds with Different Urbanization Gradients in Liuzhou,Guangxi

作　　者：李斌强 谭丽凤[1] 唐婷婷 崔庆江 LI Binqiang;TAN Lifeng;TANG Tingting;CUI Qingjiang(School of Forestry Engineering,Guangxi Eco-Engineering Vocational and Technical College,Liuzhou Guangxi 545004,P.R.China;School of Cultural Tourism,Yunnan Forestry Technological College,Kunming Yunnan 650224,P.R.China)

机构地区：[1]广西生态工程职业技术学院林业工程学院,广西柳州545004 [2]云南林业职业技术学院文化旅游学院,云南昆明650224

出　　处：《西部林业科学》2023年第3期101-108,共8页Journal of West China Forestry Science

基　　金：广西高校中青年教师科研基础能力提升项目(2022KY1238)。

摘　　要：城市化是导致生物多样性快速丧失的主要因素之一,为了探讨不同城市化梯度对鸟类物种多样性和功能多样性的影响,于2021年4月至8月,采用样线法对广西柳州12个城市公园进行鸟类调查。结果显示:调查共记录鸟类11目37科79种;郊区公园的繁殖鸟类物种丰富度、香农威纳指数、均匀度指数和Chao1指数均大于城区公园;郊区公园的繁殖鸟类功能丰富度和功能分异指数均大于城区公园,相反的是,功能均匀度指数城区公园大于郊区公园;从不同的物种保护评价等级标准来看,郊区公园在珍稀濒危的繁殖鸟类物种保护中的作用高于城区公园。可得结论:城市化增加了鸟类物种组成的差异和功能均匀度,但减少了鸟类功能性状的差异,也降低了鸟类物种的丰富度和功能丰富度。因此,在规划城市鸟类多样性保护选择中,多维度的生物多样性度量指标可反映较为全面的生物多样性本底信息,优先保护和保留城市郊区的半自然生境或者公园绿地,可以使大多数城市鸟类受益。Urbanization is one of the main causes of the rapid loss of biodiversity.To explore the effects of different urbanization gradients on bird species diversity and functional diversity.We conducted bird surveys in 12 urban parks in Liuzhou,Guangxi,from April to August 2021,using the line-transect method.In this study,we recorded 79 birds species in total,which belong to 11 orders and 37 families.The analysis showed that the species richness,Shannon-Weiner index,evenness index and Chao1 index of breeding birds in suburban parks were all higher than urban parks.Analysis of bird function diversity manifest that functional richness and functional divergence index of breeding birds in suburban parks were greater than urban parks.On the contrary,the functional evenness index in urban parks was greater than suburban parks.According to different species conservation evaluation criteria,the role of suburban parks in the protection of rare and endangered breeding birds was higher than that of urban parks.It can be concluded that urbanization increased the variation of bird species composition and functional evenness but reduced differences in functional traits and also reduced bird species richness and functional richness.As a consequence,our results can provide the bird conservation policies for Liuzhou of Guangxi;we recommend that multi-dimensional biodiversity index can reflect relatively comprehensive biodiversity background information.From the perspective of species conservation,we should be retained or constructed semi-natural habitats or green space in urban suburbs,which a majority of urban birds can benefit form this policies.

关 键 词：城市化 鸟类多样性 功能多样性 Beta多样性 柳州 

分 类 号：Q958[生物学—动物学]