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Your Position :Home->Past Journals Catalog->2010年47 No.1

Insect community and its diversity characteristics on Chinese endemic plant of Tetraena mongolica
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Key Words:Tetraena mongolica, insect community, diversity
Abstract:     investigation was carried out on the insect community on Tetraena mongolica, and the diversity characteristics were analyzed. A total of 1 935 insect specimens were collected, belonging to 8 orders, 42 families (or superfamilies), and 136 species. They were species of Homoptera, Hymenoptera, Hemiptera, Coleoptera, Diptera, Thysanoptera, Orthoptera and Neuroptera. Insects of Homoptera had the highest individual number, which comprised 6796% of the total number. There were 59 species of Hymenoptera, highest in all orders. The dominant group(>10%)was Cicadellidae, and the common groups(1%~10%) were Chalcidoidea, Meenoplidae, Cerambycidae, Formicidae, Piesmatidae, Aphidoidea and Miridae. There were 1 610 specimens of herbivorous insect (belonging to 59 species), which had the highest species richness and individual number indexes in community structure, and among which the sucking groups had the highest individual number and dominance indexes, but the lowest evenness index. Parasitoids had the highest diversity and the lowest dominance indexes, among which most groups belonged to Hymenoptera. The dominance index of neutral insects was relatively higher. Predators had lower species richness and individual number indexes, but had a higher diversity index next to parasitoids
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