Composition and distribution of ground-dwelling beetles among oak fragments and surrounding pine plantations in a temperate forest of North China
Composition and distribution of ground-dwelling beetles among oak fragments and surrounding pine plantations in a temperate forest of North China作者机构：Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing China
出 版 物：《Insect Science》 (昆虫科学（英文版）)
年 卷 期：2014年第21卷第1期
页 面：114-124页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学] 0903[农学-农业资源与环境]
基 金：supported in part by CAS Innovation Program 国家自然科学基金 a grant from the Key Laboratory of Zoological Systematics and Evolution of CAS a grant to XDY by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
主 题：forest patch size fragmentation ground-dwelling beetles North China,surrounding matrix habitat temperate forest
摘 要：In this study, we compared ground-dwelling beetle assemblages （Coleoptera） from a range of different oak fragments and surrounding conifer plantations to evaluate effects of forest size and surrounding matrix habitat in a temperate forest of north China. During 2000, beetles were sampled via pitfall traps within two large oak fragments （ca. 2.0-4.0 ha）, two small oak fragments （ca. 0.2-0.4 ha） and two surrounding matrices dom- inated by pine plantations （〉4 ha） in two sites of different aspects. Overall, no significantly negative effects from forest patch size and the surrounding matrix habitat were detected in total species number and abundance of ground-dwelling beetles. However, compared with small oak patches or pine plantations, more species were associated with an affinity for at least one large oak patch of the two aspects. Multivariate regression trees showed that the habitat type better determined the beetle assemblage structure than patch size and aspect, indicating a strong impact of the surrounding matrix. Linear mixed models indicated that species richness and abundance of all ground-dwelling beetles or beetle families showed different responses to the selected environmental variables. Our results suggest that more disturbed sites are significantly poorer in oak forest specialists, which are usually more abundant in large oak fragments and decrease in abundance or disappear in small fragments and surrounding matrix habitats. Thus, it is necessary to preserve a minimum size of forest patch to create conditions characteristic for forest interior, rather than the more difficult task of increasing habitat connectivity.
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