黑河中游干旱荒漠地面节肢动物群落季节变异规律

草业学报 ›› 2010, Vol. 19 ›› Issue (5): 161-169.

黑河中游干旱荒漠地面节肢动物群落季节变异规律

刘继亮, 李锋瑞^*,刘七军,牛瑞雪

中国科学院寒区旱区环境与工程研究所临泽内陆河流域研究站, 甘肃兰州 730000

收稿日期:2010-03-05 出版日期:2010-05-25 发布日期:2010-10-20
作者简介:刘继亮(1979-),男,黑龙江桦南人,在读博士。E-mail:liujl707@lzb.ac.cn
基金资助:
国家重点基础研究发展计划(973计划)项目(2009CB421302)和中国科学院生态环境研究中心城市与区域国家重点实验室开放基金项目(SKLURE2009-2-3)资助

Seasonal variation of ground dwelling arthropod communities in an arid desert of the middle Heihe River basin

LIU Ji-liang, LI Feng-rui, LIU Qi-jun, NIU Rui-xu

Linze Inland River Basin Research Station, Cold and Arid Regions Environmental and Engineering
Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received:2010-03-05 Online:2010-05-25 Published:2010-10-20

摘要/Abstract

摘要： 地面节肢动物是荒漠地下生态系统的重要组分之一,在维持荒漠生态系统的结构与功能方面起着关键作用。但至今尚缺乏对西北内陆干旱荒漠区地面节肢动物群落及关键功能群季节变异规律的研究。以黑河中游典型干旱荒漠生态系统为研究对象,采用国际通用的陷阱捕获法,在6月上旬和9月中旬2个典型时期对地面节肢动物群落进行了系统调查,并利用NMDS排序法定量分析研究了节肢动物群落的季节变异规律。主要结果为,1)研究发现,拟步甲科动物是干旱荒漠生态系统地面节肢动物群落最重要的组分之一。2)NMDS排序分析解析了荒漠地面节肢动物群落分布的季节变异特征,主要体现在3个方面:一是春季地面节肢动物群落的个体数量、生物量和类群丰富度显著高于秋季;二是腐屑食性的拟步甲科、植食性的长蝽科、蝗总科和捕食性的球蛛科动物的主要活动期在春季,而杂食性的蚁科、捕食性的蟹蛛科和步甲科及植食性的象甲科的主要活动期在秋季;三是春季捕食性类群与杂食性和腐屑食性类群的比值要比秋季高得多。

Abstract: Arthropod is one of the important components of dry desert ecosystems and plays a key role in maintaining ecosystem structure and functioning. Up to now, relatively fewer studies have explored seasonal variation in arthropod community composition and diversity of arid desert ecosystems in the Heihe River basin, North-west China. We investigated the composition and diversity of arthropod communities using pitfall trapping method in both early June and mid September in a typical arid desert of the middle Heihe River basin. Main findings of our study are as follows. 1) Tenebrionidae was a key group of the ground dwelling arthropod communities in this arid desert ecosystem. 2) Analysis of NMDS (non-metric multidimensional scaling) indicates significant between-season variation in the abundance, biomass, functional groups of the arthropod communities, which is mainly reflected in the following three aspects. First, the total individuals, total biomass and overall richness are significantly higher in spring than in autumn. Second, Tenebrionidae belonging to detritivores, Oedipodidea and Lygaeidae belonging to Phytophages, and Nesticidae belonging to Predators occurred mainly in spring, whereas Formicidae belonging to Omnivores, Thomisidae and Carabidae belonging to Predator and Curculionidae belonging to Phytophage occurred mainly in autumn. Thirdly, the ratio of predators to detritivores and omnivores in the arthropod communities in the early June census was found to be much higher than that in the mid September census.

中图分类号:

刘继亮, 李锋瑞,刘七军,牛瑞雪. 黑河中游干旱荒漠地面节肢动物群落季节变异规律[J]. 草业学报, 2010, 19(5): 161-169.

LIU Ji-liang, LI Feng-rui, LIU Qi-jun, NIU Rui-xu. Seasonal variation of ground dwelling arthropod communities in an arid desert of the middle Heihe River basin[J]. Acta Prataculturae Sinica, 2010, 19(5): 161-169.

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