海南自然保护区尺蛾科昆虫β多样性的研究
β diversity of Geometridae moths (Insecta:Lepidoptera) in the Hainan Nature Reserves
投稿时间:2021-06-04  修订日期:2021-09-30
DOI:
中文关键词:  β多样性  比较  形成机制  昆虫群落  海南省
英文关键词:β-diversity  Comparison  Formation mechanism  Insect community  Hainan province
基金项目:国家自然科学基金项目(面上项目)
作者单位地址
郝慧佳 首都师范大学生命科学学院,北京 北京市海淀区西三环北路105号,首都师范大学生命科学学院,邮编:100048
韩红香 中国科学院动物研究所,北京 
杨采青 首都师范大学生命科学学院,北京 
江翀 首都师范大学生命科学学院,北京 
郝梦迪 首都师范大学生命科学学院,北京 
王正军 首都师范大学生命科学学院,北京 北京市海淀区西三环北路105号
张爱兵 首都师范大学生命科学学院,北京 
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中文摘要:
      β多样性研究主要集中在植物群落上,对动物群落并联系系统发育β多样性的研究却较少。鉴于此,本研究以海南省5个自然保护区的尺蛾科昆虫为例,探究这些保护区的昆虫群落之间的β多样性及其形成机制。通过分子和形态学方法,将采集的尺蛾科昆虫成虫样本鉴定到种,并建立它们的系统发育树。分别选取了两个类型的β多样性指数:传统的Jaccard指数、Bray-Curtis指数和系统发育β多样性指数Dpw,用于比较不同样点间β多样性的变化。结合地理距离、飞行能力以及环境因子,运用mantel检验、RDA分析以及偏分析等方法探究海南尺蛾科昆虫β多样性的形成机制。结果表明,Jaccard指数和Dpw指数与19个环境因子中的等温性(bio_6)、最冷月最低温度(bio_9)和最湿季度平均温度(bio_11)这三个环境因子存在显著相关,与地理距离和飞行能力无显著相关,而Bray-Curtis指数与上述因子均无显著相关关系。三个环境因子对各β多样性指数的综合解释力都达到了79%以上,各自的解释力均在19%以上。分析表明,在海南5个自然保护区中,尺蛾科昆虫β多样性的形成主要受环境因子尤其是温度的影响。
英文摘要:
      Studies on β-diversity mainly focus on plant communities. However, there are few studies on β-diversity of animal communities and related phylogeny. In this study, we analyzed the β diversity and its formation mechanism of insect communities in five nature reserves of Hainan Province, with the species of Geometridae moths as examples. The collected samples of adult moths were identified to species by molecular and morphological methods, and their phylogenetic trees were established. Two types of β-diversity indices were selected separately: the traditional Jaccard, Bray-Curtis indices and phylogenetic β-diversity indices Dpw for comparing the variation of β-diversity among different sampling points. We used mantel test, RDA analysis and bias analysis to investigate the formation mechanism of β-diversity of Hainan Geometridae moths by combining geographic distance, flight ability and environmental factors. The results showed that the Jaccard and Dpw indices were significantly correlated with three of the 19 environmental factors, Isothermality (bio_6), Min Temperature of Coldest Month (bio_9) and Mean Temperature of Wettest Quarter (bio_11), and not significantly correlated with geographic distance and flight capacity, while the Bray-Curtis index was not significantly correlated with any of these factors. The total explanatory power of all three environmental factors for each β-diversity index reached more than 79%, and the explanatory power of each factor was more than 19%. The analysis showed that the formation of β-diversity of Geometridae moths in the five nature reserves in Hainan was mainly influenced by environmental factors, especially temperature.
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