Mapping Potential Anopheles Gambiae S.L. Larval Distribution Using Remotely Sensed Climatic and Environmental Variables in Baringo, Kenya
Loading...
Date
2018
Authors
Olagoo, D.O
Oriaso, S.O
Nyamongo, I.K
Estambale, B.BA
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley Online Library
Abstract
. Anopheles gambiae s.l. (Diptera: Culicidae) is responsible for the transmission of the devastating Plasmodium falciparum (Haemosporida: Plasmodiidae) strain of
malaria in Africa. This study investigated the relationship between climate and environmental conditions and An. gambiae s.l. larvae abundance and modelled the larval
distribution of this species in Baringo County, Kenya. Mosquito larvae were collected
using a 350-mL dipper and a pipette once per month from December 2015 to December 2016. A random forest algorithm was used to generate vegetation cover classes.
A negative binomial regression was used to model the association between remotely
sensed climate (rainfall and temperature) and environmental (vegetation cover, vegetation health, topographic wetness and slope) factors and An. gambiae s.l. for December 2015. Anopheles gambiae s.l. was significantly more frequent in the riverine zone
(P<0.05, r =0.59) compared with the lowland zone. Rainfall (b=6.22, P<0.001),
slope (b= −4.81, P=0.012) and vegetation health (b= −5.60, P=0.038) significantly
influenced the distribution of An. gambiae s.l. larvae. High An. gambiae s.l. abundance
was associated with cropland and wetland environments. Effective malaria control will
require zone-specific interventions such as a focused dry season vector control strategy
in the riverine zone
Description
Article
Keywords
Anopheles gambiae s.l., climate, environmental factors, remote sensing
Citation
Amadi, J. A., Ong'amo, G. O., Olago, D. O., Oriaso, S. O., Nyamongo, I. K., & Estambale, B. B. A. (2018). Mapping potential Anopheles gambiae sl larval distribution using remotely sensed climatic and environmental variables in Baringo, Kenya. Medical and veterinary entomology, 32(4), 417-426.