publication . Article . 2003

Evidence for a stress hypothesis: hemiparasitism effect on the colonization of Alchornea castaneaefolia A. Juss.uphorbiaceae) by Galling Insects

SCHWARTZ, Gustavo; HANAZAKI, Natalia; SILVA, Marivana B.; IZZO, Thiago J.; BEJAR, María E. P.; MESQUITA, Mariana R.; FERNANDES, G. Wilson;
Open Access English
  • Published: 01 Jun 2003
  • Publisher: Instituto Nacional de Pesquisas da Amazônia
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. Plantas estressadas geralmente são m...
free text keywords: Galling insects, Galls, Amazonian Rainforest, Stress, Host-plant Stress, Insetos galhadores, Galhas, Floresta Amazônica, Estresse, Estresse da planta hospedeira
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