Abstract：
:The preference of Triatoma infestans for shelters at different temperatures or relative humidities (RH) was tested in laboratory assays. The insects preferred refuges at a temperature of 34 degrees C rather than 26 degrees C, and chose to stay in refuges with an RH of 20% rather than 80%. Temperature and RH records made inside and outside experimental chicken-houses under natural climatic conditions showed that such habitats tend to maintain an inner climate favourable to T. infestans. Typical refuges in adobe walls showed strongly damped fluctuations in minimum and maximum temperatures, and delayed changes in these parameters when compared with an external reference. Similarly, the jarilla (Larrea sp.), a plant used for constructing roofing, damps fluctuations in minimum and maximum RH and delays these RH fluctuations when compared to an external reference. We discuss possible effects of environmental factors on the distribution of insects in human dwellings, and analyse the environmental characteristics of normally available refuges in materials used for house building in endemic zones.
journal_name
Acta Tropjournal_title
Acta tropicaauthors
Lorenzo MG,Lazzari CRdoi
10.1016/s0001-706x(98)00094-1subject
Has Abstractpub_date
1999-04-30 00:00:00pages
241-9issue
3eissn
0001-706Xissn
1873-6254pii
S0001706X98000941journal_volume
72pub_type
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