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Relative efficiency of mechanical and behavioral methods for the extraction of soil arthropods



Relative efficiency of mechanical and behavioral methods for the extraction of soil arthropods



Pakistan Journal of Zoology 11(1): 43-50



Since no single method is effective for the extraction of all groups of soil arthropods, mechanical (flotation preceded by dry sieving) and behavioral (Tullgren funnel) methods were used at 3 sites at University Campus, Peshawar, Pakistan. The mechanical method, on the average, was 1.24 times more efficient than the behavioral method. Acari, Collembola, Diplura, Diptera, Coleoptera (adults), Chilopoda and Symphyla were extracted by both methods, while Homoptera, Thysanoptera, Coleoptera (larvae) and Isoptera were recovered only by the mechanical method. Higher amounts of vegetable matter in the soil generally facilitate the extraction by behavioral method. For all groups except Collembola, the mechanical method was more efficient than the behavioral method. For Collembola and Acari, which appeared as dominant groups, the relative efficiency of extraction methods was determined for different vertical layers in the soil.

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Accession: 000734600

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