Compared dynamics of Triatoma infestans cohorts in residential environment Dinámica comparada de cohortes Triatoma infestans en ambiente habitacional.
Author
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Canals, A.
Author
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Cattan, Magdalena
Author
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Ehrenfeld,
Admission date
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2019-01-29T15:50:02Z
Available date
dc.date.available
2019-01-29T15:50:02Z
Publication date
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1994
Cita de ítem
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Revista medica de Chile, Volumen 122, Issue 9, 2018, Pages 993-997
Identifier
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00349887
Identifier
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https://repositorio.uchile.cl/handle/2250/162532
Abstract
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Triatoma infestans is an insect with a high colonization capacity, capable of maintaining populations near saturation levels in different environments. However, it has a great lability in its population parameters when exposed to variable environmental conditions. The aim of this work was to explore the response of two cohorts with 4 initial egg densities, in two environmental conditions ("shelter" at 24 +/- 2.7 degrees C and 73 +/- 7% of relative humidity and "room" at 16.9 +/- 2.1 degrees C and 69.8 +/- 5% of relative humidity), similar to those commonly found in houses at Santiago, Chile. The proportion of fertile egg was higher in shelter conditions (93.7 vs 74.6%). Survival curves were similar in both environments and mortality was not influenced by density or maturity of individuals. Maturation was retarded in both environment, specially in the colder one, compared to constant environments. It is concluded that maturation of T infestans is the most affected parameter in the unpro