Abstract:We investigated the community structure of ichneumonid wasps inhabiting beech forests at six sites in the Tanzawa Mountains of Japan under different magnitudes of impact by sika deer Cervus nippon and beech sawfly Fagineura crenativora on vegetation. Using yellow flight-interception traps, we captured 2,528 ichneumonid wasps representing 367 species in 23 subfamilies. The number of species at each site ranged from 77 to 136 and approximately 80% of these were low-density species (i.e. only one to two individua… Show more
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