花生田蜘蛛群落的研究

在花生田共采集到蜘蛛41种,隶属于12科、27属。游猎型蜘蛛主要是狼蛛科、跳蛛科、猫蛛科和管巢蛛科的种类,所占比例较高,在春花生田为60.91％～86.21％,秋花生田为50.40％～90.36％。结网蜘蛛主要是皿蛛、球蛛、肖蛸和小型园蛛。在花生的不同生长季节有不同的优势科和优势种。春花生田的优势科是狼蛛科、皿蛛科和猫蛛科,优势种是类水狼蛛、拟环纹豹蛛、脉娲蛛、食虫沟瘤蛛和斜纹猫蛛;狼蛛科、猫蛛科和球蛛科是秋花生田的优势科、脉娲蛛、斜纹猫蛛和八斑鞘蛛为优势种。

SPIDER COMMUNITY IN PEANUT FIELDS

Spider community was studied in peanut fields in Sihui County, Guangdong Province in 1998 and 41 spider species were collected. Hunting or wandering spiders made up 60. 91% to 86. 21% in spring peanut field and 50. 40% to 90. 36% in antumn field of the total spiders. Lycosidae, Salticidae, Oxy-opidae and Clubionidae were the abundant hunting families during the two seasons. The web - building spider fauna was mainly consisted of those species in Linyphindae. Theridiidae, Tetragnathidae and Araneidae. Lycosidae, Linyphiidae and Oxyopidae -were the three dominant families in spring field. Lycosidae was dominated by Pirata piratoides, Pardosa pseu.doannu.Lata and Wadicosa venatrix. Linyphiidae and Oxyopidae was dominated by Ummeliata insecticeps and Oxyopes sertatus, respectively, Lycosidae, Oxyopidae and Theridiidae, the three dominant families in autumn peanut season, was dominated by Wadicosa venatrix, Oxyopes sertatus and Coleosoma octomaculatum , respectively.