title: Effects of temperature on the life cycle, expansion, and dispersion of Aedes aegypti (Diptera: Culicidae) in three cities in Paraiba, Brazil.
abstract: The mosquito Aedes aegypti is the primary vector of dengue and is common throughout tropical and subtropical regions. Its distribution is modulated by environmental factors, such as temperature. This study aimed to evaluate the influence of temperature on the life cycle and expansion of Ae. aegypti populations in the cities of Campina Grande, João Pessoa, and Patos. Samples of Ae. aegypti were collected in the three cities and raised in the laboratory. We assessed the life cycles of the three Ae. aegypti populations under six constant temperatures (16, 22, 28, 33, 36, and 39°C), selected on the basis of historical temperature tendencies of each city. We also used existing climate data to calculate projected temperature increases for all three areas. Our results suggest that Campina Grande, João Pessoa, and Patos will experience, respectively, maximum temperature increases of 0.030°C/year, 0.069°C/year, and 0.061°C/year, and minimum temperature increases of 0.019°C/year, -0.047°C/year, and -0.086°C/year. These projected increases will result in temperatures favorable to the Ae. aegypti life cycle, causing rapid population growth. Therefore, Ae. aegypti populations are likely to expand in the mesoregions represented by these cities.
authors.affiliation: Entomology Laboratory, Nucleus for Systematic and Bioecology of Insects, Department of Biology, Universidade Estadual da Paraíba, Campina Grande, Paraiba, Brazil. rafa_paraibano@hotmail.com.
authors.forename: Rafael A
authors.initials: RA
authors.lastname: Marinho
authors.affiliation: Entomology Laboratory, Nucleus for Systematic and Bioecology of Insects, Department of Biology, Universidade Estadual da Paraíba, Campina Grande, Paraiba, Brazil.
authors.forename: Eduardo B
authors.initials: EB
authors.lastname: Beserra
authors.affiliation: Entomology Laboratory, Nucleus for Systematic and Bioecology of Insects, Department of Biology, Universidade Estadual da Paraíba, Campina Grande, Paraiba, Brazil.
authors.forename: Maria A
authors.initials: MA
authors.lastname: Bezerra-Gusmão
authors.affiliation: Entomology Laboratory, Nucleus for Systematic and Bioecology of Insects, Department of Biology, Universidade Estadual da Paraíba, Campina Grande, Paraiba, Brazil.
authors.forename: Valbia de S
authors.initials: Vde S
authors.lastname: Porto
authors.affiliation: Department of Statistics, Universidade Estadual da Paraíba, Campina Grande, Paraiba, Brazil.
authors.forename: Ricardo A
authors.initials: RA
authors.lastname: Olinda
authors.affiliation: Unity of Atmospheric Sciences, Center of Technology and Natural Resources, Federal University of Campina Grande, Paraíba, Brazil.
authors.forename: Carlos A C
authors.initials: CA
authors.lastname: Dos Santos
mesh_terms: D000330:Aedes / Q000254:growth & development*; D063147:Animal Distribution; D000818:Animals; D001938:Brazil; D002947:Cities; D003715:Dengue; D008018:Life Cycle Stages; D000072138:Mosquito Vectors / Q000254:growth & development*; D013696:Temperature
keywords: Aedes aegypti; development; intra-population variation; temperature tendency; vector biological cycle