Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Bras. entomol. (2) RChHN (1) Autor Barbeitos,Marcos Soares (1) CORLEY,JUAN C (1) Fagundes,Marcílio (1) Fernandes,G. Wilson (1) Fernandes,Geraldo Wilson (1) Greco,Magda K. Barcelos (1) Nessim,Rafael (1) Santos,Jean C. (1) Santos,Jean Carlos (1) Souza,Rodrigo A. de (1) VILLACIDE,JOSÉ M (1) Mais... Palavra-chave Insect herbivory (3) Cerrado (2) Ant-treehopper mutualism (1) Associational damage (1) Associational susceptibility (1) Cecidomyiidae (1) Community structure (1) Cupressaceae (1) Hypersensitive reaction (1) Insect galls (1) Nanodacna austrocedrella (1) Serra do Cipó (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Journal article (1) Ano 2008 (1) 2006 (1) 2005 (1) País Brazil (2) Chile (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Ants and their effects on an insect herbivore community associated with the inflorescences of Byrsonima crassifolia (Linnaeus) H.B.K. (Malpighiaceae) Rev. Bras. entomol. Fernandes,G. Wilson; Fagundes,Marcílio; Greco,Magda K. Barcelos; Barbeitos,Marcos Soares; Santos,Jean Carlos. The effects of ants on the insect community on inflorescences of Byrsonima crassifolia (Malpighiaceae) were tested in an ant exclusion experiment in a cerrado vegetation in southeastern Brazil. Forty-four species of insects (23 families) and nine species of ants (6 genera and 3 subfamilies) were found on the inflorescences of B. crassifolia. The exclusion of ants, primarily Camponotus sericeiventris and Camponotus spp., reduced the treehopper population to 20% of the original abundance. Ant exclusion and time influenced the abundance of chewing (Exclusion, P<0.001; Time, P<0.002), and sucking insects (Exclusion, P<0.02; Time, P<0.01). Twice as many chewing and sucking insects were found on ant-excluded inflorescences as compared to control... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ant-treehopper mutualism; Cerrado; Community structure; Insect herbivory. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000200011 Influence of Apion sp. (Brentidae, Apioninae) stem-galls on induced resistance and leaf area of Diospyros hispida (Ebenaceae) Rev. Bras. entomol. Souza,Rodrigo A. de; Nessim,Rafael; Santos,Jean C.; Fernandes,Geraldo Wilson. We addressed the influence of the stem galls induced by an unidentified species of Apion sensu lato (Brentidae, Apioninae) on the host plant, Diospyros hispida (Ebenaceae) leaf area and induced resistance against a Cecidomyiidae (Diptera) leaf galls. The study was performed in a cerrado vegetation in Serra do Cipó, southeastern Brazil. Although the number of leaves produced on galled and ungalled shoots did not differ statically (p>0.05), the presence of the apionid galls influenced the area of the leaves on the attacked shoots of D. hispida. Leaves on galled stems were approximately 50% smaller compared to leaves in healthy stems. The average of the cecidomyiid leaf galls successfully induced on healthy shoots was higher compared to galls successfully... Tipo: Info:eu-repo/semantics/other Palavras-chave: Cecidomyiidae; Cerrado; Hypersensitive reaction; Insect galls; Insect herbivory; Serra do Cipó. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262006000300016 The role of stand composition on pre-dispersal seed predation in Austrocedrus chilensis (Cupressaceae) in north west Patagonia RChHN VILLACIDE,JOSÉ M; CORLEY,JUAN C. We studied the variability of pre-dispersal seed predation by insects on Austrocedrus chilensis (Cupressaceae). This is a dioecious conifer endemic to southern South America (central Chile and the Chilean Argentinean Patagonia) that grows naturally in pure and mixed stands, typically in association with broadleaved Nothofagus species. Seeds are attacked while still inside the cones, mainly by larvae of Nanodacna austrocedrella (Lepidoptera: Elachistidae). Our working hypothesis was that observed variations in pre-dispersal seed damage levels were related to forest stand composition, specifically to the relative abundance of A. chilensis versus accompanying Nothofagus species. We compared seed predation levels in six pairs of sites using a block design... Tipo: Journal article Palavras-chave: Cupressaceae; Insect herbivory; Associational susceptibility; Associational damage; Nanodacna austrocedrella. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000300007 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco