6 resultados para Angiopolybia

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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Angiopolybia pallens (Lepeletier, 1836) exhibited an intense activity at the beginning (6:00-7:00 a.m.) and end of the day (5:30-6:00 p.m.) (bimodal daily activity) and a low efficiency index in resources collection. The species also exhibited an equivalence relation in the items collected (nectar, prey and pulp) and a negative reaction to temperature and luminosity increasing, and reacted positively to an increase in the relative air humidity.

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In order to evaluate the flying capacity and nest site selection of Angiopolybia pallens (Lepeletier, 1836), we made 17 incursions (136 hours of sample efforts) in Atlantic Rain Forest environments in Bahia state. Our data show this wasp prefers to nest on wide leaves of bushes and short trees (nests between 0.30 and 3m from the ground) placed in half-shady environments (clearings and shadowed cultivations). The logistic regression model using Quasi-Newton method provided a good description of the flying capacity observed in A. pallens (x 2 = 91.52; p≪0.001). According to the logistic regression model, the A. pallens flight autonomy is low, flying for short distances and with an effective radius of action of about 24m measured from their nests, which means a foraging area of nearly 1,800 m 2.

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A morphological cladistic analysis of the Neotropical swarm-founding genus Angiopolybia Araujo is presented. A single cladogram resulted from the analysis, with the following ingroup topology: (A. pallens + A. zischkai) + (A. paraensis + A. obidensis). The monophyly of the genus is supported by four synapomorphies. A new identification key is presented for the genus. Copyright © 2007 Magnolia Press.

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Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)