Nestedness of bird assemblages in the karst forest fragments of southwestern Guangxi, China  

桂西南喀斯特地区斑块生境中鸟类群落嵌套结构分析(英文)

作　　者：李肇天[1] 陆舟[1] 舒晓莲[2] 蒋光伟[1] 许亮[1] 周放[1] 

机构地区：[1]广西大学动物科学技术学院,南宁530005 [2]广西大学林学院,南宁530005

出　　处：《Chinese Birds》2013年第2期170-183,共14页中国鸟类（英文版）

基　　金：financed by the National Nature Science Foundation of China (Grant Nos. 30970381,31172123)

摘　　要：The limestone region in southwestern Guangxi contains the most typical karst landforms in the world. Due to their destruction, the original forests mainly survive in nature reserves in the form of fragmented areas. From June 2009 to September 2010 we conducted an investigation of 13 relatively isolated habitats or sites, selected from each of the 13 nature reserves in southwestern Guangxi, with the least amount of anthropological activity and the largest presence of the original vegetation, in order to study the distribution of birds on forest fragments. The distribution patterns of the birds and the factors which affect them were analyzed by using the 'BINMATNEST' software and the Spearman’s rank correlation analysis, to determine: 1) whether nested patterns of birds in the karst area of southwestern Guangxi exist or not and 2) which factors are correlated with the nested patterns and the effect of these factors on forming nested patterns. The results show that the birds had statistically significant nested patterns in the karst area and the specificity of the habitat of the birds had a significant effect on the nested patterns. We suggest possible reasons for these results, based on the characteristics of the seasonal tropical rain forests in the study area and on neutral theory. We also urgently recommend that close attention be paid to the protection of the diversity of the environment for birds in all fragmented habitats.桂西南喀斯特地区拥有世界上发育最典型的溶岩地貌。由于遭到破坏,原生性较强的森林都以斑块形式存在于各保护区中。在桂西南喀斯特地区内的13个自然保护区中,分别选择一块人为干扰较小、植被原生性较强且相对隔离的生境斑块,于2009年6月至2010年9月对各生境斑块中的鸟类组成进行调查。使用BINMATNEST软件分析该地区斑块生境中鸟类群落的分布格局,探求桂西南喀斯特地区斑块生境中的鸟类群落是否存在嵌套性分布,以及影响嵌套性格局形成的因素及其对鸟类群落嵌套性分布的影响。结果表明,桂西南喀斯特地区斑块生境中的鸟类群落分布符合嵌套性结构,对选择的3种斑块特征因子和4种生活特征因子使用Spearman矩阵相关性分析,只有生境专属性因子对鸟类群落的嵌套结构影响显著,结合研究地的季雨林生境特征和中性理论分析了可能的原因。对桂西南喀斯特地区的鸟类多样性保护提出了全面重视的保护策略。

关 键 词：BIRDS NESTEDNESS habitat fragmentation karst area neutral theory 

分 类 号：Q958[生物学—动物学]