Behavioral plasticity of Triatominae related to habitat selection in northeast Brazil.

نویسندگان

  • Ana Laura Carbajal de la Fuente
  • Artur Dias-Lima
  • Catarina Macedo Lopes
  • Laure Emperaire
  • Annie Walter
  • Agenor Ferreira
  • Italo Sherlock
  • François Noireau
چکیده

Triatoma pseudomaculata Corrêa and Espínola, 1964 and Triatoma juazeirensis Costa and Felix, 2007 ( = T. brasiliensis Neiva, 1911 [part]), are sylvatic vectors of Trypanosoma cruzi (Chagas, 1909), the causative agent of Chagas disease, in northeast Brazil-especially in the caatinga region. In an area of caatinga in the State of Bahia, we compared the wild and peridomestic habitats of these two species of Triatominae to assess their behavioral plasticity in relation to habitat selection in different environments. In the sylvatic environment, the habitat of these two species is never shared. T. pseudomaculata is found in trees and bird nests, but without apparent preference for any particular tree species. In contrast, T. juazeirensis is exclusively rupicolous (found among rocks). Both species invade peridomestic structures but do not display a significant ability to colonize human dwellings. In the peridomestic area, they are highly adaptable to different habitats and can occupy substrates that they do not colonize in the sylvatic environment. This behavioral plasticity seems to be more striking in T. juazeirensis-rupicolous in sylvatic environments but colonizing wooden structures in the peridomicile in >80% of cases.

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عنوان ژورنال:
  • Journal of medical entomology

دوره 45 1  شماره 

صفحات  -

تاریخ انتشار 2008