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	Provedor de dados Acta Amazonica (2) Autor FERNANDES,G. Wilson (2) ALMADA,Emmanuel Duarte (1) BEJAR,María E. P. (1) CARNEIRO,Marco Antônio Alves (1) COSTA,Flávia Regina Capellotto (1) HANAZAKI,Natalia (1) IZZO,Thiago J. (1) JULIÃO,Genimar Rebouças (1) MESQUITA,Mariana R. (1) SCHWARTZ,Gustavo (1) SILVA,Marivana B. (1) Mais... Palavra-chave Amazonian Rainforest (1) Galling insects (1) Galls (1) Habitat stress (1) Host-plant Stress (1) Soil nutrients (1) Species diversity (1) Stress (1) Terra firme forest (1) Topographic gradient (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Understory host plant and insect gall diversity changes across topographic habitats differing in nutrient and water stress in the Brazilian Amazon rainforest Acta Amazonica JULIÃO,Genimar Rebouças; ALMADA,Emmanuel Duarte; COSTA,Flávia Regina Capellotto; CARNEIRO,Marco Antônio Alves; FERNANDES,G. Wilson. ABSTRACT Topographic gradients in terra firme forests are associated with pronounced changes in soil texture, soil nutrients and distance to the water-table, thereby creating different hydric and nutritional conditions for plants and their associated herbivore community. The aim of this study was to investigate galling species and host plant richness and gall species composition across topographic habitats differing in nutrient and water stress in the Brazilian Amazon rainforest. Nineteen 250 x 3 m plots were randomly sampled in the valley, slope, plateau-slope transition, and plateau habitats in terra firme forests. All individual dicotyledonous plants 1 to 3 meters high were examined for the presence of insect galls. Galling species and host plant... Tipo: Info:eu-repo/semantics/article Palavras-chave: Habitat stress; Soil nutrients; Species diversity; Terra firme forest; Topographic gradient. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300237 Evidence for a stress hypothesis: hemiparasitism effect on the colonization of Alchornea castaneaefolia A. Juss.uphorbiaceae) by Galling Insects Acta Amazonica SCHWARTZ,Gustavo; HANAZAKI,Natalia; SILVA,Marivana B.; IZZO,Thiago J.; BEJAR,María E. P.; MESQUITA,Mariana R.; FERNANDES,G. Wilson. Stressed plants are generally more attacked by galling insects. In this study we investigated the relationship between population abundance and species richness of galling insects on the tree Alchornea castaneaefolia A. JUSS. (Euphorbiaceae), submited to stress induced by the hemiparasite Psittacanthus sp. (Loranthaceae) in the Amazon, Brazil. Branches of A. castaneaefolia attacked by the hemiparasite were more heavily infested by galling insects than non-attacked branches. The field observations partially corroborate the hypothesis that there would be an optimal level of host-plant stress for galling insect establishment. Tipo: Info:eu-repo/semantics/article Palavras-chave: Galling insects; Galls; Amazonian Rainforest; Stress; Host-plant Stress. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000200275 Registros recuperados: 2 Primeira ... 1 ... Última

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