Dietas e conteúdo alimentar de alguns Carabidae (Coleoptera) observados na região nordeste do Estado de São Paulo
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Data
2011-02-25
Autores
Barbosa, Crislany de Lima [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
Na família Carabidae (Insecta, Coleoptera) inclui importantes espécies predadoras associadas a culturas agrícolas. A determinação do tipo de alimento utilizado por carabídeos encontra-se entre os principais aspectos considerados em estudos sobre hábitos alimentares. O presente estudo teve como objetivo avaliar o efeito de diferentes tipos de dietas sobre o consumo, viabilidade e número de ovos produzidos pelos carabídeos Abaris basistriata Chaudoir, 1873, Selenophorus seriatoporus Putzeys, 1878, Tetracha brasiliensis (Kirby, 1818), Scarites sp.2, Scarites sp.3. e determinar o tipo de material alimentar presente no aparelho digestivo dessas cinco espécies de carabídeos. As dietas avaliadas foram: larvas de Tenebrio molitor Linnaeus, 1758 (Coleoptera, Tenebrionidae), carne moída, ração para gato, pulgão Schizaphis graminum (Rondani, 1852) (Insecta, Hemiptera, Aphididae), sementes de Brachiaria decumbens Stapf (Poaceae) e mistura das dietas. Analisou-se o material presente no inglúvio e proventrículo de 10 carabídeos adultos de cada espécie coletada no campo. As espécies A. basistriata, T. brasiliensis, Scarites sp.2 e Scarites sp.3 não consumiram sementes de B. decumbens. A dieta mais consumida por adultos das cinco espécies foi larvas de T. molitor. As dietas mais favoráveis à capacidade reprodutiva de A. basistriata, S. seriatoporus e T. brasiliensis foram S. graminum e larvas de T. molitor/mistura das dietas, respectivamente. Por outro lado, as dietas de larvas de T. molitor e mistura das dietas foram as mais favoráveis para a criação de A. basistriata, S. seriatoporus e T. brasiliensis em condições de laboratório. No conteúdo alimentar de todas as espécies foram encontrado fluídos e resíduo de tegumento de artrópodes, sem contudo exibirem material vegetal. Foram identificados fragmentos de antenas, pernas, asas e mandíbulas no conteúdo alimentar de A. basistriata, T. brasiliensis, Scarites sp.2 e Scarites sp.3.
Ground beetles or carabids are collective terms for the beetle family Carabidae (Insecta, Coleoptera), which contains many species considered important predators associated with agricultural cultures. Among the main factors considered in studies on food habits is determination the type of food used by carabid. The present study aimed to evaluate the effect of different diet types on consumption, viability and number of egg produced by Abaris basistriata Chaudoir, 1873, Selenophorus seriatoporus Putzeys, 1878, Tetracha brasiliensis (Kirby, 1818), Scarites sp.2 e Scarites sp.3. and determination the type of alimentary material in the gut these five carabid. The diets assessed were: larvae of Tenebrio molitor Linnaeus, 1758 (Coleoptera, Tenebrionidae), beef mincemeat, dry cat food, the greenbug Schizaphis graminum (Rondani, 1852) (Insecta, Hemiptera, Aphididae), seeds of the signal grass Brachiaria decumbens Stapf (Poaceae) and a mixture of the diets. The material alimentary in the crop and proventriculus of 10 carabid adults of each species collected in the field we analyzed. Abaris basistriata, T. brasiliensis, Scarites sp.2 and Scarites sp.3 did not consume the B. decumbens seeds. The most consumed diet by five species was T. molitor larvae. Schizaphis graminum and T. molitor larvae / mixture were considered the diets most favourable for the reproductive capacity of A. basistriata and S. Seriatoporus/T. brasiliensis, respectively. On the other hand, T. molitor larvae and mixture of the diets were the most favorable diets for rearing A. basistriata, S. Seriatoporus and T. brasiliensis under laboratory conditions. All species showed fluid and pieces of integument of arthropods in gut, but without displaying the plant material. Some materials gut were identified as fragments of antennae, legs, wings and mandibles in alimentary content of A. basistriata, T. brasiliensis, Scarites sp.2 and Scarites sp.3.
Ground beetles or carabids are collective terms for the beetle family Carabidae (Insecta, Coleoptera), which contains many species considered important predators associated with agricultural cultures. Among the main factors considered in studies on food habits is determination the type of food used by carabid. The present study aimed to evaluate the effect of different diet types on consumption, viability and number of egg produced by Abaris basistriata Chaudoir, 1873, Selenophorus seriatoporus Putzeys, 1878, Tetracha brasiliensis (Kirby, 1818), Scarites sp.2 e Scarites sp.3. and determination the type of alimentary material in the gut these five carabid. The diets assessed were: larvae of Tenebrio molitor Linnaeus, 1758 (Coleoptera, Tenebrionidae), beef mincemeat, dry cat food, the greenbug Schizaphis graminum (Rondani, 1852) (Insecta, Hemiptera, Aphididae), seeds of the signal grass Brachiaria decumbens Stapf (Poaceae) and a mixture of the diets. The material alimentary in the crop and proventriculus of 10 carabid adults of each species collected in the field we analyzed. Abaris basistriata, T. brasiliensis, Scarites sp.2 and Scarites sp.3 did not consume the B. decumbens seeds. The most consumed diet by five species was T. molitor larvae. Schizaphis graminum and T. molitor larvae / mixture were considered the diets most favourable for the reproductive capacity of A. basistriata and S. Seriatoporus/T. brasiliensis, respectively. On the other hand, T. molitor larvae and mixture of the diets were the most favorable diets for rearing A. basistriata, S. Seriatoporus and T. brasiliensis under laboratory conditions. All species showed fluid and pieces of integument of arthropods in gut, but without displaying the plant material. Some materials gut were identified as fragments of antennae, legs, wings and mandibles in alimentary content of A. basistriata, T. brasiliensis, Scarites sp.2 and Scarites sp.3.
Descrição
Palavras-chave
Coleoptero, Dissecação, Aparelho digestivo, Carabídeos, Alimentação, Manejo integrado de pragas, Ground beetle, Food, Dissection, Gut
Como citar
BARBOSA, Crislany de Lima. Dietas e conteúdo alimentar de alguns Carabidae (Coleoptera) observados na região nordeste do Estado de São Paulo. 2011. xiii, 74 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2011.