Distribution and seasonal abundance of Anopheline mosquitoes and their association with rainfall around irrigation and non irrigation areas in Nigeria
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Date
2018-12
Journal Title
Journal ISSN
Volume Title
Publisher
UNED: Research journal in Costa Rica
Abstract
The abundance of Anopheline mosquito species is the most
common entomological measurement to determine the relationship
between vectors and malaria incidence. We conducted an entomolog ical survey to determine mosquito species diversity and abundance
in relation to rainfall in Omi reservoir irrigation area, Nigeria. We col lected adult mosquitoes from 10 randomly selected residential houses
using Pyrethrum spray sheet and Human Landing Catch methods. We
grouped the samples into irrigated (intervention) and non-irrigated
(control) communities. During the 12-month sampling period, we col lected a total of 4 285 mosquitoes belonging to 10 species in one fam ily. The three most common species during this study were Anopheles
gambiae, Anopheles funestus and Culex quinquefasciatus. Irrigated
community has higher numbers of mosquitoes (69,4%) compared to
those collected in non-irrigated community (32,0%). Comparing the
two collection methods used, Pyrethrum spray sheet has a greater
number 2 225(75,4%) of mosquitoes than those with Human Landing
Catch method 724(24,6%). During dry season, we collected fewer mos quitoes. The lowest number was collected in February (114) and the
highest occurring during the wet season in July (445).
Description
Keywords
mosquitoes, Omi reservoir, collection method, abundance
Citation
Distribution, seasonal abundance, Anopheline mosquitoes