Variations in Sex Ratio Feeding and Fecundity of <i>Triatoma dimidiata</i> (Hemiptera: Reduviidae) Among Habitats in the Yucatan Peninsula Mexico - Archive ouverte HAL Access content directly
Journal Articles Vector-Borne and Zoonotic Diseases Year : 2009

Variations in Sex Ratio Feeding and Fecundity of Triatoma dimidiata (Hemiptera: Reduviidae) Among Habitats in the Yucatan Peninsula Mexico

Abstract

Chagas' disease is a major public health concern in most Latin American countries and its prevention is based on insect vector control. Previous work showed that in the Yucatan peninsula of Mexico, houses are transiently infested by adult Triatoma dimidiata, which then fail to establish sustained colonies. The present study was designed to evaluate the seasonality and possible causes of the dispersal of sylvatic T. dimidiata toward the houses and the subsequent failure of colonization. Dispersal was highly seasonal and correlated with temperature, pressure, and wind speed. Analysis of sex ratio, feeding status, and fecundity of sylvatic populations of T. dimidiata indicated a rather low feeding status and low potential fecundity, suggesting that seasonal dispersal may be associated with foraging for better conditions. Also, feeding status and potential fecundity tended to improve in the domestic habitat but remained largely suboptimal, suggesting that these factors may contribute to the ineffective colonization of this habitat.
No file

Dates and versions

hal-00539336 , version 1 (24-11-2010)

Identifiers

Cite

V. Payet, M.J. Ramirez-Sierra, J. Rabinovich, F. Menu, E. Dumonteil. Variations in Sex Ratio Feeding and Fecundity of Triatoma dimidiata (Hemiptera: Reduviidae) Among Habitats in the Yucatan Peninsula Mexico. Vector-Borne and Zoonotic Diseases, 2009, 9 (3), pp.243-251. ⟨10.1089/vbz.2008.0078⟩. ⟨hal-00539336⟩
154 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More