22 Ara 2024 Pazar
Distribution and seasonal abundance of Anopheline mosquitoes and their association with rainfall around irrigation and non irrigation areas, Kogi State, Nigeria
Abstract :We
conducted an entomological survey to determine mosquito species diversity and
abundance in relation to rainfall in Omi reservoir irrigation area, Nigeria.
Adult mosquitoes were collected from 10 randomly selected residential houses
using pyrethrum spray sheet and Human Landing Catch methods. The communities
sampled were grouped into irrigated (intervention) and non-irrigated (control)
communities. During the 12-month sampling period, a total of 4285 mosquitoes
belonging to 10 species in 1 family were collected. The three most common
species collected during this study were Anopheles
gambiae, Anopheles funestus and Culex quinquefasciatus. Higher numbers
of mosquitoes (69.4%) were collected in irrigated community as compared to
those collected in non-irrigated community (32.0%). Comparing the two
collection methods used, a greater number 2225(75.4%) of mosquitoes were
collected with Pyrethrum spray sheet than those with Human Landing Catch method
724(24.6%).Relatively fewer numbers of mosquitoes were collected during the dry
than wet season in all collection points. The lowest number was collected in
February (114). However, the number increased, the highest occurring during the
wet season particularly in July (445)
Mosquitoes,
Omi reservoir, Collection method, Abundance, Kogi