Changes in the Sexual Dimorphism of Triatominae in the Transition from Natural to Artificial Habitats
Open Access
- 1 July 1999
- journal article
- research article
- Published by FapUNIFESP (SciELO) in Memórias do Instituto Oswaldo Cruz
- Vol. 94 (4) , 565-569
- https://doi.org/10.1590/s0074-02761999000400024
Abstract
A shift from large to small average sizes was observed in Triatoma infestans and Rhodnius domesticus between field and domestic (or laboratory) conditions of life. It was more pronounced in the female specimens, leading to a subsequent reduction of sexual size dimorphism. This feature is discussed in terms of genetic and populational changes occurring from natural to artificial habitats, in particular those related to population densities. Sexual size dimorphism is then recommended as a new character to be used in the study of species of Triatominae adapting to domestic ecotopes.Keywords
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