Comparative Study on the Thermal Performance of Three Aedes aegypti (Diptera: Culicidae) Populations From Argentina.

Autor:	De Majo MS; Departamento de Ecología, Genética y Evolución, and Instituto IEGEBA (CONICET UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón, 4to piso, Laboratorio, Buenos Aires, Argentina., Zanotti G; Departamento de Ecología, Genética y Evolución, and Instituto IEGEBA (CONICET UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón, 4to piso, Laboratorio, Buenos Aires, Argentina., Gimenez JO; Instituto de Medicina Regional, Área de Entomología, Universidad Nacional del Nordeste (UNNE), Avda. Las Heras, Resistencia, Chaco, Argentina., Campos RE; Instituto de Limnología 'Dr. Raúl A. Ringuelet,' Universidad Nacional de La Plata-CONICET, CCT La Plata, Boulevard 120 y 62 N° 1437, La Plata (B 1900), Buenos Aires, Argentina., Fischer S; Departamento de Ecología, Genética y Evolución, and Instituto IEGEBA (CONICET UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón, 4to piso, Laboratorio, Buenos Aires, Argentina.
Jazyk:	angličtina
Zdroj:	Journal of medical entomology [J Med Entomol] 2021 Jul 16; Vol. 58 (4), pp. 1733-1739.
DOI:	10.1093/jme/tjab017
Abstrakt:	The distribution of Aedes aegypti (L.) (Diptera: Culicidae) is expanding towards colder regions, which could be aided by an adaptation of the immature stages to the local thermal conditions. This study aimed to assess the developmental success at different temperatures in three populations of Ae. aegypti located across a climate gradient in Argentina. Survival to the adult stage, development time, and wing length at 14, 18.5 and 24°C were compared among three populations of Argentina: Resistencia in the subtropical region, and Buenos Aires and San Bernardo in the temperate region. Survival was similar between populations and equal to or higher than 69%, and increased at higher temperatures within the studied range. Development times were similar between populations. A negative effect of temperature was observed and the reduction of development time at increasing temperatures was stronger for males than for females. Wing lengths were negatively affected by increasing temperatures, and the reduction of wing length was stronger for females than for males. Also, the reduction of wing lengths with temperature was stronger for San Bernardo and Resistencia than for Buenos Aires, and differences between sexes were larger for Resistencia than for Buenos Aires or San Bernardo. Although the results do not evidence differences in survival and development time between temperate and tropical populations, the three populations have a higher tolerance to low temperatures than the populations from other regions. (© The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
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