Ecological variations in adult life table attributes of Aedes aegypti (L.) from the desert and coastal regions of India. Issue 1 (7th September 2022)

• Record Type: Journal Article
• Authors: Sharma, Gaurav; De, Souvik; Mandal, Udita; Bhattacherjee, Rashmi; Suman, Devi Shankar
• Is Part Of: Medical and veterinary entomology. Volume 37:Issue 1(2023)
• Page Start: 164
• Page End: 169
• Publication Date: 2022-09-07
• Subjects: biological variation -- ecology -- mosquitoes -- population dynamics -- reproductive potential -- survival; Entomology -- Periodicals; Veterinary entomology -- Periodicals; Insects as carriers of disease -- Periodicals; 616.968
• DOI: 10.1111/mve.12609
• Languages: English
• ISSNs: 0269-283X

Abstract

Abstract: The ecological variation in biological and adult life‐table attributes of two populations of Aedes aegypti (Diptera: Culicidae) from the desert (Jodhpur) and coastal (Kolkata) regions of India are assessed to understand the reproductive and survival strategies. The results showed that females lived longer than males in both strains. The desert strain was more r‐strategist because of its higher intrinsic rate of increase ( r m = 0.23), finite rate of increase ( λ = 1.25), lower life expectancy of males (7.9 days) and females (14.4 days), mean generation time ( T = 19.2 days) and doubling time (DT = 3.0 days). However, there was no difference in net reproductive rate ( R 0 ) between the desert and coastal strains. The coastal strain showed a longer female life expectancy (22.0 days) than the desert strain (14.4 days). However, the fecundity (eggs/female/day) was lower in the coastal strain (11.4) than in the desert strain (15.1). Conclusively, the desert (Jodhpur) strain is adapted to a better r‐strategy than the coastal (Kolkata) strain of Ae. aegypti, which might be helpful to flourish in harsh environmental conditions. This study may provide accurate predictions of Ae. aegypti population dynamics for vector management. Abstract : Comparative analysis on biological and life history traits of Aedes aegypti strains from desert and coastal regions of India: (A) age specific survivorship of males, (B) age specific survivorship of females, (C) net reproductive rate and (D) age specific fecundity.