Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199191
Type: Artigo de periódico
Title: Population Dynamics And Structure Of The Neotropical Bark Bug Phloea Subquadrata (hemiptera: Phloeidae) On Plinia Cauliflora (myrtaceae).
Author: Salomão, Adriana T
Vasconcellos-Neto, João
Abstract: Phloea subquadrata Spinola, 1837 (Pentatomoidea: Phloeidae) belongs to a small family of sap feeding bugs that live on tree trunks, on which they are cryptic because of their coloration and flat body. There are a few studies concerning phloeid anatomy and biology, but almost nothing is known about their ecology. In this study, population dynamics and structure of P. subquadrata on the host tree Plinia cauliflora (Myrtaceae) were investigated during 3 yr in a semideciduous forest in southeast Brazil. Nymphs and adults were active all year round, but the egg-laying season was mainly restricted to the warm, rainy season (September-March). Population density slightly increased at the end of this season because of reproduction. Population age structure changed markedly over time, with nymphs reaching the adult stage in the subsequent early-to-mid rainy season. Abiotic factors, such as rainfall and temperature, were correlated with female oviposition and population dynamics and phenology. Sex ratio was male-biased, not differing from 1:1 only during the adult recruitment period (October-January). Under dry weather conditions, phloeids were distributed closer to the base of the tree trunks when compared with rainy conditions. Our results suggest that seasonality and variations in weather conditions are important driving forces of population dynamics and phenology of P. subquadrata, as well as the microhabitat selection on host trees.
Subject: Animals
Female
Hemiptera
Host-parasite Interactions
Male
Myrtaceae
Population Density
Population Dynamics
Rain
Reproduction
Seasons
Sex Ratio
Temperature
Rights: fechado
Identifier DOI: 10.1603/EN09282
Address: http://www.ncbi.nlm.nih.gov/pubmed/22182535
Date Issue: 2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.