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为揭示紫胶林-农田复合生态系统地表甲虫多样性,于2006-2007年在云南省绿春县牛孔乡采用陷阱法调查了天然紫胶林、人工紫胶林和旱地的地表甲虫群落。共采集标本1678头,分别隶属于24科120种,其中步甲科(Carabidae)和金龟科(Scarabaeidae)种类最丰富,均占全部种类的12.50%。拟步甲科(Tenebrionidae)个体数量最丰富,占个体总数的64.48%;金龟科次之,占个体总数的17.58%。大多数科的物种数和个体数在不同土地利用生境中的分布没有显著差异,而步甲科、隐翅甲科(Staphylinidae)、叩甲科(Elateridae)、拟步甲科、瓢虫科(Coccinellidae)和小蠧科(Scolytidae)在不同土地利用生境中的分布有显著差异。天然紫胶林地表甲虫个体数量最少,物种较丰富,优势度最低,多样性最高;人工紫胶林个体数和物种数均丰富,优势度和多样性居中;旱地个体数量最多,物种最贫乏,优势度最高,多样性最低。种级水平的聚类分析体现出人工紫胶林与旱地之间在种类组成上距离较近;而科级水平的聚类反映出人工紫胶林和天然紫胶林更接近。结果提示,紫胶林-农田复合生态系统具有区域内土地利用方式多样化的特点;天然紫胶林在维持地表甲虫多样性水平上具有重要作用,而人工紫胶林虽具有积极作用,但仍需进一步恢复。
In order to reveal the diversity of surface beetles in the Lac - Agroforestry ecosystem, the beetle communities of natural shellac, artificial shellac and dryland were investigated by trap method in Niu Kong Township, Lvchun County, Yunnan Province from 2006 to 2007. A total of 1678 specimens were collected, belonging to 24 families and 120 species. Among them, Carabidae and Scarabaeidae were the most abundant species, accounting for 12.50% of all species. The population of Tenebrionidae is the most abundant, accounting for 64.48% of the total number of individuals. Chaetoceros is second, accounting for 17.58% of the total number of individuals. There was no significant difference in the distribution of species and individuals in most land-use habitats in most of the families, but not in the families of Stapylidae, Staphylinidae, Elateridae, Coccinellidae) and Scolytidae in different land-use habitats were significantly different. Natural sclerotia forest beetle population at least, the species is rich, the lowest degree of dominance, the highest diversity; artificial lacitonglin individuals and species are rich in dominance and diversity; dry land individual number is the most, the species is the most poor, The highest degree of dominance, the lowest diversity. Cluster-level cluster analysis shows that species composition is relatively close between artificial shellac and dryland, while the clustering at the family level reflects that the artificial shellac and the natural shellac are closer. The results indicated that the lacanthine-agro-ecosystem has the characteristics of diversified land use patterns in the region. The natural lacredit forest plays an important role in maintaining the diversity of surface beetles. However, although the artificial shellac has a positive effect, Need to be further restored.