Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.

<h4>Background</h4>Characteristics of aquatic habitats determine whether mosquitoes will oviposit, hatch, develop, pupate and successfully emerge into adults or not, thus influencing which mosquito species will occupy a habitat. This study determined whether physiochemical and biological...

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Main Authors: Bryson A Ndenga, Jemimah A Simbauni, Jenard P Mbugi, Andrew K Githeko
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110145/pdf/?tool=EBI
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author Bryson A Ndenga
Jemimah A Simbauni
Jenard P Mbugi
Andrew K Githeko
author_facet Bryson A Ndenga
Jemimah A Simbauni
Jenard P Mbugi
Andrew K Githeko
author_sort Bryson A Ndenga
collection DOAJ
description <h4>Background</h4>Characteristics of aquatic habitats determine whether mosquitoes will oviposit, hatch, develop, pupate and successfully emerge into adults or not, thus influencing which mosquito species will occupy a habitat. This study determined whether physiochemical and biological characteristics differ between habitats with high and low presence of anopheline larvae.<h4>Methods</h4>Physical, chemical and biological characteristics were evaluated in selected habitats twice per month within three highland valleys in western Kenya. Aquatic macro-organisms were sampled using a sweep-net. Colorimetric methods were used to determine levels of iron, phosphate, nitrate, ammonium and nitrite in water samples. Generalized Estimating Equations (GEE) was used to compare parameters between the two categories of anopheline presence.<h4>Results</h4>Habitats with high anopheline presence had greater abundance of mosquito aquatic stages and tadpoles and two times more levels of nitrate in water, whereas habitats with low anopheline presence had wider biofilm cover and higher levels of iron in water.<h4>Conclusion</h4>Habitats of high and low presence of anopheline larvae, which differed in a number of physical, chemical and biological characteristics, were identified in valleys within western Kenya highlands. Differences in habitat characteristics are critical in determining the number of anopheline larvae that will fully develop and emerge into adults.
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spelling doaj.art-2a896cf135e843e5a431a63761ce5a2e2022-12-21T22:54:00ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01710e4797510.1371/journal.pone.0047975Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.Bryson A NdengaJemimah A SimbauniJenard P MbugiAndrew K Githeko<h4>Background</h4>Characteristics of aquatic habitats determine whether mosquitoes will oviposit, hatch, develop, pupate and successfully emerge into adults or not, thus influencing which mosquito species will occupy a habitat. This study determined whether physiochemical and biological characteristics differ between habitats with high and low presence of anopheline larvae.<h4>Methods</h4>Physical, chemical and biological characteristics were evaluated in selected habitats twice per month within three highland valleys in western Kenya. Aquatic macro-organisms were sampled using a sweep-net. Colorimetric methods were used to determine levels of iron, phosphate, nitrate, ammonium and nitrite in water samples. Generalized Estimating Equations (GEE) was used to compare parameters between the two categories of anopheline presence.<h4>Results</h4>Habitats with high anopheline presence had greater abundance of mosquito aquatic stages and tadpoles and two times more levels of nitrate in water, whereas habitats with low anopheline presence had wider biofilm cover and higher levels of iron in water.<h4>Conclusion</h4>Habitats of high and low presence of anopheline larvae, which differed in a number of physical, chemical and biological characteristics, were identified in valleys within western Kenya highlands. Differences in habitat characteristics are critical in determining the number of anopheline larvae that will fully develop and emerge into adults.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110145/pdf/?tool=EBI
spellingShingle Bryson A Ndenga
Jemimah A Simbauni
Jenard P Mbugi
Andrew K Githeko
Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
PLoS ONE
title Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
title_full Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
title_fullStr Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
title_full_unstemmed Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
title_short Physical, chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western Kenya highlands.
title_sort physical chemical and biological characteristics in habitats of high and low presence of anopheline larvae in western kenya highlands
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110145/pdf/?tool=EBI
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