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广西十万大山蚱类昆虫生态适应性

邓维安**,李晓东,韦仕珍,原宝东,林敏平   

  1. (河池学院化学与生物工程学院, 广西宜州 546300)
  • 出版日期:2015-07-10 发布日期:2015-07-10

Ecological adaptability of the Tetrigid in the Shiwanshan of Guangxi.

DENG Wei-an**, LI Xiao-dong, WEI Shi-zhen, YUAN Bao-dong, LIN Min-ping   

  1. (School of Chemistry and Bioengineering, Hechi University, Yizhou 546300, Guangxi, China)
  • Online:2015-07-10 Published:2015-07-10

摘要:

本文探讨了广西十万大山荒坡草丛、湿地、林间小溪、河滩沙石、灌木丛、阔叶林、针叶林、混交林共8个生境的蚱类昆虫种类组成、分布规律、蚱类昆虫对不同生境的选择以及蚱类形态对生境的适应特性。结果表明:蚱类昆虫种类数量灌木丛>阔叶林>荒坡草丛>湿地>混交林>林间小溪>河滩沙石>针叶林;蚱类昆虫对生境不但有较大的偏好性而且有着严格的选择性;生活在林间小溪的蚱类具有长的前胸背板和后翅。光照强度对日本蚱(Tetrix japonica)的前胸背板长度、前足股节长度、中足股节长度以及后足胫节长度有显著影响;露点温度对肩宽、后翅长度和后足股节长度产生显著的影响;湿度对前翅长度产生显著的影响。推测光照强度、露点温度和湿度3个环境因子不同程度对日本蚱的不同形态性状产生显著影响,是导致日本蚱型变呈多样化的关键原因。
 

 

关键词: 遗传距离, 系统发育树, DNA条形码, 统计分类, 遗传相似度, 序列特征, 分子鉴定

Abstract:

A survey was conducted to reveal the species composition and distribution of Tetrigid, their choice of and adaptability to habitats in sloping tussock, wetland, forested stream, beach, bushes, broadleaved forest, coniferous forest, and mixed forest in Shiwanshan of Guangxi. The results showed that the species number of the Tetrigrid in the different habitats was in order of bushes > broadleaved forest > sloping tussock > wetland > mixed forest > forested stream > beach > coniferous forest. Different species had different habitat preferences and strict habitat selectivity. Species living in forested stream had a longer pronotum and longer hind wings. Light intensity significantly affected the lengths of pronotum, fore and mid femurs and tarsus of Tetrix japonica. Dew point temperature had a significant effect on the width of the humeral angle and the length of the hind wings and hind femurs, and so did humidity on the length of the tegmina. It is suggested that light intensity, dew point temperature and humidity have significant impacts on different morphological characters of T. japonica, playing a critical role in the diversification of T. japonica.
 

Key words: statistical classification., molecular identification, phylogenetic tree, DNA barcode, genetic distance, genetic similarity, sequence character