Environmental dynamics and seasonal wing physiological changes of coastal mosquito vectors (Diptera: Culicidae) in Central Thailand
Issued Date
2024-06-01
Resource Type
ISSN
12268615
Scopus ID
2-s2.0-85188846087
Journal Title
Journal of Asia-Pacific Entomology
Volume
27
Issue
2
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Asia-Pacific Entomology Vol.27 No.2 (2024)
Suggested Citation
Abdulloh A., Laojun S., Wichit S., Mariela Saba Villarroel P., Chaiphongpachara T. Environmental dynamics and seasonal wing physiological changes of coastal mosquito vectors (Diptera: Culicidae) in Central Thailand. Journal of Asia-Pacific Entomology Vol.27 No.2 (2024). doi:10.1016/j.aspen.2024.102228 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/97847
Title
Environmental dynamics and seasonal wing physiological changes of coastal mosquito vectors (Diptera: Culicidae) in Central Thailand
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
Mosquitoes (Diptera: Culicidae) are small hematophagous insects that serve as disease vectors by transmitting pathogens to humans and animals. This study was conducted on the coastline of Samut Songkhram Province in Thailand's central region to evaluate the impact of environmental factors on coastal mosquitoes, namely Anopheles epiroticus and Culex sitiens. A zero-inflated negative binomial (ZINB) regression was employed to assess the relationship between the density of larval mosquitoes and water quality factors. Spearman's rank correlation was used to examine the relationship between the number of adult mosquitoes and meteorological factors, and the geometric morphometric (GM) technique was used to study the wing size and shape of adult mosquitoes throughout different seasons. The ZINB analysis revealed a significant negative relationship (p < 0.05) between dissolved oxygen, high-range phosphate, and the number of An. epiroticus larvae. Conversely, in the case of Cx. sitiens, there was a significant positive relationship between nitrate-nitrogen and larval density (p < 0.01), while dissolved oxygen exhibited a significant negative relationship (p < 0.05). Regarding adult mosquitoes, relative humidity was positively correlated with the abundance of adult Cx. sitiens (r = 0.85, p < 0.01), whereas each meteorological parameter—temperature, relative humidity, rainfall, wind speed, and atmospheric pressure—was negatively correlated with adult An. epiroticus abundance (p < 0.05 for each). The GM analysis revealed statistically significant seasonal variations in wing shapes for both species (p < 0.05 for all seasonal comparisons), underscoring their adaptation to seasonal environmental conditions in coastal habitats.