Biting rhythm and demographic attributes of Aedes albopictus (Skuse) females from different urbanized settings in Penang Island, Malaysia under uncontrolled laboratory conditions

Urbanization could potentially modify Aedes albopictus' ecology by changing the dynamics of the species, and affecting their breeding sites due to environmental changes, and thus contribute to dengue outbreaks. Thus, this study was conducted to evaluate the biting rhythm, fecundity and longevit...

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Bibliographic Details
Published in:PloS one 2020-11, Vol.15 (11), p.e0241688
Main Authors: Muhammad, Nor Atikah Farhah, Abu Kassim, Nur Faeza, Ab Majid, Abdul Hafiz, Abd Rahman, Azimah, Dieng, Hamady, Avicor, Silas Wintuma
Format: Article
Language:English
Subjects:
Aedes - physiology
Aedes albopictus
Analysis of Variance
Animals
Asian tiger mosquito
Biology and Life Sciences
Biting
Breeding
Containers
Cotton
Dengue
Dengue fever
Developmental stages
Disease control
Disease transmission
Distribution
Earth Sciences
Ecological effects
Ecology
Eggs
Entomology
Ethics
Experiments
Fecundity
Female
Females
Fertility - physiology
Health risks
Human populations
Humidity
Laboratories
Larval development
Malaysia
Medicine and Health Sciences
Mosquito Vectors - physiology
Mosquitoes
Physiological aspects
Population density
Populations
Public health
Reproductive fitness
Rural areas
Social Sciences
Suburban areas
Survival
Urban areas
Urban populations
Urbanization
Vector-borne diseases
Vegetation
Viruses
Warm climates
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Summary:Urbanization could potentially modify Aedes albopictus' ecology by changing the dynamics of the species, and affecting their breeding sites due to environmental changes, and thus contribute to dengue outbreaks. Thus, this study was conducted to evaluate the biting rhythm, fecundity and longevity of adult female Ae. albopictus in relation to urbanization strata; urban, suburban and rural areas in Penang Island, Malaysia. The experiments were done in comparison to a laboratory strain. Twenty-four hours biting activity of all the mosquito strains showed a clear bimodal biting activity, with morning and evening twilight peaks. The interaction effect between biting time and mosquito strains was not significant. Meanwhile, differences in fecundity among mosquito strains were statistically significant (F(3,442) = 10.559, P < 0.05) with urban areas having higher mean number of eggs (mean = 107.69, standard error = 3.98) than suburban (mean = 94.48, standard error = 5.18), and rural areas (mean = 72.52, standard error = 3.87). Longevity of adult females were significantly higher (F(3,441) = 31.259, P < 0.05) for mosquito strains from urban areas compared to the other strains. These findings would provide crucial information for the planning of control programs in Malaysia, particularly Penang.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0241688