Diferenciação etológica e morfofisiológica das castas de Mischocyttarus cerberus styx Richards, 1940 (Hymenoptera, Vespidae, Mischocyttarini), com especial referência à dinâmica do estabelecimento da hierarquia social
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Data
2008-01-30
Autores
Silva, Iracema Monteiro da [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
As vespas são um excelente modelo para se tentar compreender a evolução do comportamento social nos Hymenoptera. A biologia e a organização social das vespas eussociais primitivas, em especial o gênero Mischocyttarus, são pouco conhecidas, apesar da grande diversidade de espécies desse gênero nos trópicos. Com o objetivo de identificar os mecanismos envolvidos na regulação social de Mischocyttarus cerberus styx, foram coletadas 6 colônias com histórico comportamental das fêmeas conhecidas, para a análise da morfofisiologia dos indivíduos, no Câmpus da Unesp de Rio Claro, SP. Foi verificado que a dinâmica hierárquica desta espécie é regulada através de uma estratégia que relaciona comportamento de manutenção da colônia ao gasto energético diferencial. Os indivíduos mais dominantes tendem a permanecer mais tempo no ninho, construir mais células e apresentam balanço energético positivo. Através desses mecanismos, a hierarquia é regulada de forma dinâmica, de maneira a permitir que qualquer indivíduo possa ocupar diferentes papéis dentro da colônia, uma vez que, como verificado, os adultos demonstram capacidades reprodutivas similares e não apresentam diferenças morfológicas significativas entre as castas. A determinação das suas funções na colônia dependerá, portanto, das estratégias comportamentais acima descritas
The wasps are an excellent model to try itself to understand the evolution of the social behavior in the Hymenoptera. The biology and the social organization of the primitive eusociais wasps, in special the Mischocyttarus genus, little is known, although the great diversity of species of this genus are in the tropics. The objective of this work is identify to the involved mechanisms in the social regulation of Mischocyttarus cerberus styx, had been collected 6 colonies with behavior description of the known females, for the analysis of the morfophysiology of the individuals, in the Campus of the UNESP - Rio Claro, SP. It was verified that the hierarchic dynamics of this species is regulated through a strategy behavior of maintenance of the colony and the distinguishing energy expense. The individuals most dominant tend to remain more time in the nest, to construct more cells and present positive energy balance. Through these mechanisms, the hierarchy is regulated of dynamic form, way to allow that any individual can inside occupy different works in the colony, in such a way, the adults demonstrate similar reproductive capacities and they do not present significant morphologic differences between the cast ones. The determination of its functions in the colony will depend, therefore, of above described the behavior strategies
The wasps are an excellent model to try itself to understand the evolution of the social behavior in the Hymenoptera. The biology and the social organization of the primitive eusociais wasps, in special the Mischocyttarus genus, little is known, although the great diversity of species of this genus are in the tropics. The objective of this work is identify to the involved mechanisms in the social regulation of Mischocyttarus cerberus styx, had been collected 6 colonies with behavior description of the known females, for the analysis of the morfophysiology of the individuals, in the Campus of the UNESP - Rio Claro, SP. It was verified that the hierarchic dynamics of this species is regulated through a strategy behavior of maintenance of the colony and the distinguishing energy expense. The individuals most dominant tend to remain more time in the nest, to construct more cells and present positive energy balance. Through these mechanisms, the hierarchy is regulated of dynamic form, way to allow that any individual can inside occupy different works in the colony, in such a way, the adults demonstrate similar reproductive capacities and they do not present significant morphologic differences between the cast ones. The determination of its functions in the colony will depend, therefore, of above described the behavior strategies
Descrição
Palavras-chave
Vespa - Comportamento, Wasp
Como citar
SILVA, Iracema Monteiro da. Diferenciação etológica e morfofisiológica das castas de Mischocyttarus cerberus styx Richards, 1940 (Hymenoptera, Vespidae, Mischocyttarini), com especial referência à dinâmica do estabelecimento da hierarquia social. 2008. 93 f. Dissertação (mestrado) - Universidade Estadual Paulista, Instituto de Biociências de Rio Claro, 2008.