Diversity of ground-dwelling beetles at the edge of grassland and artificial Caragana fields in Sidunzi, Yanchi County, Northwest China

doi:10.11686/cyxb20130541

Abstract

Abstract: The influences of edge effects on ground-dwelling beetles (Coleoptera) across an artificial Caragana intermedia-grassland ecotone were investigated. The study was conducted in Sidunzi, Yanchi County, Ningxia, Northwest China. During the field research, a total of 1 101 beetles belonging to 13 families were collected with pitfall traps. Of these beetles, Carabidae (17 species) and Tenebrionidae (12 species) were the most abundant species. Four families dominated: Tenebrionidae, Carabidae, Scarabaeidae and Melolonthidae which accounted for 41.78%, 10.81%, 10.54% and 10.45% of the total, respectively. From artificial Caragana intermedia to the edge and then to grassland, family abundance, diversity and evenness decreased in sequence, and were significantly different between the three habitat types. Edge effect intensity on diversity of ecotone was above 1 (1.039 6), and had a positive effect.

CLC Number:

S812.6

JIA Yan-xia, WANG Xin-pu. Diversity of ground-dwelling beetles at the edge of grassland and artificial Caragana fields in Sidunzi, Yanchi County, Northwest China[J]. Acta Prataculturae Sinica, 2013, 22(5): 345-350.

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