Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area

Abstract Background Environmental conditions affect the biology of mosquito vectors. Aedes albopictus is a major vector of many important diseases including dengue, Zika, and chikungunya in China. Understanding the development, fecundity, and survivorship of Ae. albopictus mosquitoes in different en...

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Autores principales:	Guzhen Cui, Saifeng Zhong, Tuquan Zheng, Zhangrui Li, Xu Zhang, Chuang Li, Elizabeth Hemming-Schroeder, Guofa Zhou, Yiji Li
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Aedes albopictus Tropical area Life table Survivorship Development time Reproduction Infectious and parasitic diseases RC109-216
Acceso en línea:	https://doaj.org/article/fa6fb1ab4ac1482e934a88f7927d2eec
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spelling	oai:doaj.org-article:fa6fb1ab4ac1482e934a88f7927d2eec2021-11-14T12:25:13ZAedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area10.1186/s13071-021-05081-x1756-3305https://doaj.org/article/fa6fb1ab4ac1482e934a88f7927d2eec2021-11-01T00:00:00Zhttps://doi.org/10.1186/s13071-021-05081-xhttps://doaj.org/toc/1756-3305Abstract Background Environmental conditions affect the biology of mosquito vectors. Aedes albopictus is a major vector of many important diseases including dengue, Zika, and chikungunya in China. Understanding the development, fecundity, and survivorship of Ae. albopictus mosquitoes in different environmental conditions is beneficial for the implementation of effective vector control measures. Methods Aedes albopictus larval and adult life-table experiments were conducted under natural conditions in indoor, half-shaded, and fully shaded settings, simulating the three major habitat types in Hainan Province, a tropical island in the South China Sea. Temperature, humidity, and light intensity were recorded daily. Larval rearing used habitat water and tap water, with and without additional artificial food. Development time, survivorship, pupation rate, and adult emergence rates were monitored. Adult mosquito survivorship and fecundity were monitored daily and reproductive rates were determined, and age-dependent survivorship and reproduction were analyzed. Results The pupation time and male and female emergence times were significantly shorter in indoor conditions than in shaded and half-shaded conditions for both tap water with added food and habitat water with added food groups. For habitat water with added food, the shaded environment had the lowest pupation rate among the settings. For tap water with added food group, the shaded environment had the lowest pupation rate. The mean survival time of females was 27.3 ± 0.8 days in the indoor condition, which was significantly longer than that in the half-shaded (18.4 ± 0.6 days) and shaded (13.8 ± 1.2 days) conditions. Adult mortality was age-dependent, and the rate of change in mortality with age was not significantly different among different environmental conditions. The mean net replacement rate (R 0) of female mosquitoes showed no significant difference among the three conditions, whereas the per capita intrinsic growth rate (r) in the shaded condition was 42.0% and 20.4% higher than that in the indoor and half-shaded conditions, respectively. Female daily egg mass was also age-dependent in all the settings, decaying exponentially with age. Conclusions Our results imply that half-shaded conditions are likely the best natural condition for adult emergence and female reproduction, and food supply is crucial for larval development and pupation. The results provide new avenues for integrated mosquito management in indoor and outdoor areas, especially in half-shaded areas. Graphical AbstractGuzhen CuiSaifeng ZhongTuquan ZhengZhangrui LiXu ZhangChuang LiElizabeth Hemming-SchroederGuofa ZhouYiji LiBMCarticleAedes albopictusTropical areaLife tableSurvivorshipDevelopment timeReproductionInfectious and parasitic diseasesRC109-216ENParasites & Vectors, Vol 14, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aedes albopictus Tropical area Life table Survivorship Development time Reproduction Infectious and parasitic diseases RC109-216
spellingShingle	Aedes albopictus Tropical area Life table Survivorship Development time Reproduction Infectious and parasitic diseases RC109-216 Guzhen Cui Saifeng Zhong Tuquan Zheng Zhangrui Li Xu Zhang Chuang Li Elizabeth Hemming-Schroeder Guofa Zhou Yiji Li Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
description	Abstract Background Environmental conditions affect the biology of mosquito vectors. Aedes albopictus is a major vector of many important diseases including dengue, Zika, and chikungunya in China. Understanding the development, fecundity, and survivorship of Ae. albopictus mosquitoes in different environmental conditions is beneficial for the implementation of effective vector control measures. Methods Aedes albopictus larval and adult life-table experiments were conducted under natural conditions in indoor, half-shaded, and fully shaded settings, simulating the three major habitat types in Hainan Province, a tropical island in the South China Sea. Temperature, humidity, and light intensity were recorded daily. Larval rearing used habitat water and tap water, with and without additional artificial food. Development time, survivorship, pupation rate, and adult emergence rates were monitored. Adult mosquito survivorship and fecundity were monitored daily and reproductive rates were determined, and age-dependent survivorship and reproduction were analyzed. Results The pupation time and male and female emergence times were significantly shorter in indoor conditions than in shaded and half-shaded conditions for both tap water with added food and habitat water with added food groups. For habitat water with added food, the shaded environment had the lowest pupation rate among the settings. For tap water with added food group, the shaded environment had the lowest pupation rate. The mean survival time of females was 27.3 ± 0.8 days in the indoor condition, which was significantly longer than that in the half-shaded (18.4 ± 0.6 days) and shaded (13.8 ± 1.2 days) conditions. Adult mortality was age-dependent, and the rate of change in mortality with age was not significantly different among different environmental conditions. The mean net replacement rate (R 0) of female mosquitoes showed no significant difference among the three conditions, whereas the per capita intrinsic growth rate (r) in the shaded condition was 42.0% and 20.4% higher than that in the indoor and half-shaded conditions, respectively. Female daily egg mass was also age-dependent in all the settings, decaying exponentially with age. Conclusions Our results imply that half-shaded conditions are likely the best natural condition for adult emergence and female reproduction, and food supply is crucial for larval development and pupation. The results provide new avenues for integrated mosquito management in indoor and outdoor areas, especially in half-shaded areas. Graphical Abstract
format	article
author	Guzhen Cui Saifeng Zhong Tuquan Zheng Zhangrui Li Xu Zhang Chuang Li Elizabeth Hemming-Schroeder Guofa Zhou Yiji Li
author_facet	Guzhen Cui Saifeng Zhong Tuquan Zheng Zhangrui Li Xu Zhang Chuang Li Elizabeth Hemming-Schroeder Guofa Zhou Yiji Li
author_sort	Guzhen Cui
title	Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
title_short	Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
title_full	Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
title_fullStr	Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
title_full_unstemmed	Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
title_sort	aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area
publisher	BMC
publishDate	2021
url	https://doaj.org/article/fa6fb1ab4ac1482e934a88f7927d2eec
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Aedes albopictus life table: environment, food, and age dependence survivorship and reproduction in a tropical area

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