干旱区生态环境知识资源中心(Arid): 黑河中游干旱荒漠地面节肢动物群落季节变异规律

Arid

	黑河中游干旱荒漠地面节肢动物群落季节变异规律
其他题名	Seasonal variation of ground dwelling arthropod communities in an arid desert of the middle Heihe River basin
	刘继亮; 李锋瑞; 刘七军; 牛瑞雪
来源期刊	草业学报
ISSN	1004-5759
出版年	2010
卷号	19 期号:5 页码:161-169
中文摘要	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
英文摘要	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
中文关键词	黑河中游 ; 干旱荒漠生态系统 ; 地面节肢动物 ; 功能群 ; 季节变异
英文关键词	middle Heihe River basin arid desert ecosystems arthropod community functional groups seasonal variation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:4038868
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224758
作者单位	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, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘继亮,李锋瑞,刘七军,等. 黑河中游干旱荒漠地面节肢动物群落季节变异规律[J]. 中国科学院西北生态环境资源研究院,2010,19(5):161-169.
APA	刘继亮,李锋瑞,刘七军,&牛瑞雪.(2010).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,19(5),161-169.
MLA	刘继亮,et al."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 19.5(2010):161-169.