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Artrópodos associados à copa de Attalea phalerata Mart. (Arecaceae), na região do Pantanal de Poconé, Mato Grosso, Brasil


Adis,  Joachim
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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dos Santos, G. B., Marques, M. I., Adis, J., & de Musis, C. R. (2003). Artrópodos associados à copa de Attalea phalerata Mart. (Arecaceae), na região do Pantanal de Poconé, Mato Grosso, Brasil. Revista Brasileira de Entomologia, 47(2), 211-224.

Six individuals of the palm A. phalerata (Arecaceae) in Poconé floodplains of Mato Grosso were sprayed with a syntetic pyrethroid of 0.25% concentration in order to study the biomass, diversity, and richness of arthropods associated with the crown. A total of 17,188 (238.780.6 ind./m²) arthropods collected on 72 m² funnel area were distributed in 22 taxonomic Orders. The Coleoptera (27.4%), Formicidae (19.0%), Collembola (13.6%), Psocoptera (10.7%), Diptera (9.0%) and Araneae (6.4%) predominated. Total biomass was 15.1 g dry weight (0.4mg/m²; 0.13+0.04/tree). Of the total arthropods obtained, 58.9% were collected within the first two hours after spraying, 37.6% within the next two hours following shaking of the trees, and a mere 3.5% after cutting and washing the palm fronds. A total of 4,715 beetles represented 48 families and 326 morphospecies were recorded. Tenebrionidae (22.9%), Curculionidae (22.0%), Carabidae (10.9%) and Staphylinidae (7.9%) contributed the highest density. Curculionidae (44 spp.), Staphylinidae (40 spp.) and Chrysomelidae (34 spp.) had the highest number of morphospecies. Trophic guilds of adult Coleoptera were dominated by herbivores (37.5%), followed by predators (35.4%), fungivores (14.6%), and saprophages (12.5%). Although most arthropod Orders were represented in all the palms sampled, analysis of variance showed no significant differences in their composition, however there was a significance difference in their frequency of occurrence.