Estudo de interações de parasitoides de insetos endófagos em frutos do cerrado

• Ano de defesa: 2010
• Autor(a) principal: Nascimento, André Rangel
• Orientador(a): Dias, Angélica Maria Penteado Martins
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Carlos
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN
• País: BR
• Palavras-chave em Português: Relações específicas aos tipos de ambientes; Relação inseto-planta; Parasitóides; Ecologia do cerrado; Redes complexas
• Palavras-chave em Inglês: Cerrado; Parastoids; Insect-plant; Webs
• Área do conhecimento CNPq: CIENCIAS BIOLOGICAS::ECOLOGIA
• Link de acesso: https://repositorio.ufscar.br/handle/20.500.14289/1991

Interactions between endofagous insects in fruits play an important role in ecological communities, since the seed survivorship and hence the successes in recruitment of plant populations are directed related to damage caused by the herbivory from these insects. Because of the specialization of the herbivorous insects, the insect-plant interactions tend to be structured in compartments of insects which use different groups of plant. The aims of this study were: (1) to identify if insect-plant interactions in fruits of the cerrado are compartmented; and (2) to identify if plant species in compartments are related. With two monthly field trips, the fruits of 34 plant species were sampled. The insects that emerged from fruits were classified in morphospecies. A correspondence analysis was used to identify the compartments. About 97 morphospecies of insects were identified. Although there is no consensus if the competitive forces structure the compartmented networks or, if directly or indirectly, chemicals defences of plants, the compartmentation seems to be an overall characteristic of food webs and, thus, of insect-plant networks. There is also evidence of the role of the phylogeny in the structure of compartmented networks.