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      Diversity of social wasps (Hymenoptera: Vespidae) in Cerrado fragments of Uberlândia, Minas Gerais State, Brazil Translated title: Diversidade de vespas sociais (Hymenoptera: Vespidae) nos Cerrados de Uberlândia, MG

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          Abstract

          Sudies of species survey are important to know the available natural resources and to get useful information about the ecological characteristics of a specific area. There are not studies, on this issue, related to social wasps, in the Triângulo Mineiro region. The present study describes the diversity of species found in fragments of the cerrado region in Uberlândia, MG, and their temporal distribution. The field study was conducted from October 2003 to September 2004, and 43 samplings were carried out using active searching (24) and point sampling (19) methodologies. Twenty-nine species were found in 10 genera, Polybia and Polistes corresponding to 51.5% of the total listing. Mischocyttarus cerberus styx Richards represented 26.5% of the total individuals recorded by active searching and Agelaia pallipes (Olivier) corresponded to 57.6% by point sampling. Two species had their first record for the state of Minas Gerais: Polybia striata (Fabricius) and M. cerberus styx. The studied fragments presented a high level of diversity (H’ = 0.66 to 1.16), a large number of rare species and a few common species. To collect the more common species the point sampling method was satisfactory while active searching was better to collect the rarer species. The active searching methodology was more efficient than point sampling, however some species could only be collected by point sampling. These factors showed that in order to carry out a wasp survey, a combination of different collection methodologies seems to be more appropriate.

          Translated abstract

          Estudos de levantamento de espécies são importantes para o conhecimento dos recursos naturais além de contribuírem com informações de características ecológicas de uma determinada região. Não há estudos dessa natureza abordando vespas sociais no Triângulo Mineiro. O presente estudo investiga a diversidade das espécies encontradas em fragmentos de cerrado em Uberlândia, MG, e sua distribuição temporal. O trabalho de campo foi conduzido de outubro de 2003 a setembro de 2004, realizando-se 43 amostragens utilizando as metodologias de busca ativa e amostragem pontual. Foram encontradas 29 espécies em 10 gêneros, destacando-se Polybia e Polistes com 51,7% dos espécimes coletados. Mischocyttarus cerberus styx Richards representou 26,5% do total de indivíduos registrados para busca ativa e Agelaia pallipes (Olivier) correspondeu a 57,6% para amostragem pontual. Duas espécies apresentaram primeiro registro para Minas Gerais: Polybia striata (Fabricius) e M. cerberus styx. Os fragmentos estudados apresentaram elevado índice de diversidade (H’ = 0,66 a 1,16), grande quantidade de espécies raras e poucas espécies comuns. O método de amostragem pontual foi satisfatório para coletar as espécies mais comuns enquanto a busca ativa foi importante para a coleta de espécies raras. A metodologia de busca ativa foi mais eficiente, em termos de abundância, que a amostragem pontual, embora algumas espécies só tenham sido coletadas pelo método de amostragem pontual. Esses fatores revelaram que para efetuar um levantamento de vespas uma combinação de diferentes metodologias de coleta parece ser o mais indicado.

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          Most cited references37

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          A Economia da Natureza

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            The social wasps of the Americas, excluding the Vespinae

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              A physiognomic analysis of the Cerrado vegetation of Central Brasil

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                ne
                Neotropical Entomology
                Neotrop. entomol.
                Sociedade Entomológica do Brasil (Londrina )
                1678-8052
                October 2007
                : 36
                : 5
                : 685-692
                Affiliations
                [1 ] Universidade Federal de Juiz de Fora Brazil
                [2 ] Instituto de Biociências
                [3 ] Univ. Federal de Uberlândia
                Article
                S1519-566X2007000500008
                10.1590/S1519-566X2007000500008
                4576c0cf-0ec5-44ad-9ee7-5ffefb0ec74e

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1519-566X&lng=en
                Categories
                ENTOMOLOGY

                Entomology
                Swarm founding wasp,sampling method,inventory,Vespa enxameante,método de amostragem,inventário

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