河北坝上草原不同生境对强足通缘步甲的影响  

Effect on Pterostichus fortipes of different habitats in Bashang region,Hebei,Northern China

作　　者：王新谱[1] 郭勇嘉[1] 王建芳[1] 李秀敏[1] 

机构地区：[1]河北大学生命科学学院,河北省无脊椎动物系统学与应用重点实验室,河北保定071002

出　　处：《河北大学学报（自然科学版）》2013年第3期295-299,共5页Journal of Hebei University(Natural Science Edition)

基　　金：河北省自然科学基金资助项目(C2011201086)

摘　　要：以河北坝上草地优势物种强足通缘步甲Pterostichus fortipes为研究对象,探讨不同生境对该物种多样性的影响.主要研究内容包括:强足通缘步甲的种群时间和空间动态,种群与环境因子的关系等.结果表明:1)强足通缘步甲在不同生境内的数量分布有显著差异;2)强足通缘步甲种群与地表温度、地下5cm地温和立枯物显著正相关;3)适度的干扰能提高该物种多样性,但干扰频度和程度过高或过低却不利于其物种多样性的提高.研究结果明确了环境中主要生物和非生物因子对强足通缘步甲多样性的影响变化,为生态变化指示性物种的确定提供了科学依据.The essay focuses on Pterostichus fortipes that account for almost 60 percent of total spe- cies in Hebei Province in order to study its relation with different habitats. The results showed that. 1） A number of different habitats of Pterostichus fortipes had significant differences; 2） Pterostichus fortipes had a significant positive correlation with plant height, made dry content and 5 cm underground tempera- ture; 3） Moderate-disturbed land use could improve the species diversity, but the too high or too low in- terference could not help to improve species diversity. The results proved the environment main biological and non-biological factors could deeply effect Pterostichus fortipes, as indicative of ecological change in the determination of species provides a scientific basis.

关 键 词：强足通缘步甲 生境 物种多样性 环境因子 

分 类 号：Q968.1[生物学—昆虫学]