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Morphological caste studies in the neotropical swarm-founding Polistinae wasp Angiopolybia pallens (Lepeletier) (Hymenoptera: Vespidae) Neotropical Entomology
Gelin,Luiz F.F.; Cruz,Jucelho D. da; Noll,Fernando B.; Giannotti,Edilberto; Santos,Gilberto M. de M.; Bichara-Filho,Carlos C..
Neotropical swarm-founding wasps present polygynic colonies and a great variation in relation to caste differentiation, ranging from species in which queens and workers are similar in shape and size to those where variation in shape and size is conspicuous. Canonical discriminant analysis and Bonferroni t-test analysis on morphometric data collected from eight body parts of specimens from nine colonies of Angiopolybia pallens (Lepeletier) were undertaken as a step towards to a better understanding on caste differenciation in Epiponini. All specimens were dissected to verify the ovary developmental stage, and the spermatheca was removed to check for the mating status. Females were then grouped as queens (mated with developed ovaries), intermediates (virgin...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Morphometry; Epiponini; Caste differentiation.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000600011
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Castes and asynchronous colony cycle in Polybia bistriata (Fabricius) (Hymenoptera: Vespidae) Neotropical Entomology
Oliveira,Otavio A.L. de; Noll,Fernando B.; Mateus,Sidnei; Gomes,Bruno.
Neotropical swarm-founding wasps, the Epiponini, are an outstanding group of social insects whose societies are polygynic and complex nest builders. Caste dimorphism in these wasps ranges from incipient to highly distinct. Morphometric analyses of nine body parts, ovarian status, relative age and development of the 5th gastral sternite gland (Richards´ gland) of Polybia bistriata Fabricius were undertaken in order to estimate caste differentiation in nine colonies. Morphological and physiological data were used in multivariate analyses in order to evaluate the level of discrimination between inseminated and non-inseminated females. Clear physiological differences were found: queens had highly developed ovaries and they were inseminated, and workers had...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Caste difference; Social wasp; Morphometric analysis.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600001
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Diversity of social wasps (Hymenoptera, Vespidae, Polistinae) in three fragments of semideciduous seasonal forest in the northwest of São Paulo State, Brazil Rev. Bras. entomol.
Gomes,Bruno; Noll,Fernando B..
Human exploitation of the forest in the northwest of São Paulo State has generated enormous fragmentation of that forest. Such disturbance has reduced the populations of insects in general. This work was a survey of social wasps (Hymenoptera, Vespidae; Polistinae) in three areas in different stages of regeneration: Paulo de Faria - SP (435 ha), Pindorama - SP (128 ha) and Neves Paulista - SP (1 ha). These three areas were chosen for comparative purposes. To capture the wasps, it was used: active collecting with attractant liquid (solution of water, salt and sugar) with the aid of a dorsal spray bag. During the period from July to December 2006, 414 social wasps were collected in Paulo de Faria, constituting seven species belonging to four genera; 111...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Hymenoptera; Polistinae; Vespidae.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300018
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Caste differences in Pseudopolybia compressa (Hymenoptera: Vespidae: Polistinae) Rev. Bras. Zool.
Pizarro,Laura Chavarría; Noll,Fernando B.; Mateus,Sidnei.
Studies of morphological caste syndromes in the tribe Epiponini help us to understand the evolution of social behavior in insects. Few studies have integrated morphological syndromes of various species from the same or distinct genera. We studied morphological differences between castes from three colonies of Pseudopolybia compressa de Saussure, 1854, in order to relate their caste syndrome with those of other species in the genus. We took eight morphometric measures and females were classified in relation to ovarian development and spermathecal contents. Females of Colony 1 (C1) present a higher distinction between castes than females of Colonies 2 and 3 (C2 and C3), and, in general, queens of the three colonies are larger than workers in some measures...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dimorphism; Epiponini; Morphological syndromes; Queen; Shape; Workers.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000400006
Registros recuperados: 4
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