1921
Volume 87, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract.

Dynamics of abundance and malaria transmission potential rely strongly on environmental conditions. Female and male use sugar and are affected by its absence, but how the presence or absence of nectariferous plants affects abundance and vectorial capacity has not been studied. We report on four replicates of a cohort study performed in mesocosms with sugar-poor and sugar-rich plants, in which we measured mosquito survival, biting rates, and fecundity. Survivorship was greater with access to sugar-rich plant species, and mortality patterns were age-dependent. Sugar-poor populations experienced Weibull mortality patterns, and of four populations in the sugar-rich environment, two female and three male subpopulations were better fitted by Gompertz functions. A tendency toward higher biting rates in sugar-poor mesocosms, particularly for young females, was found. Therefore, vectorial capacity was pulled in opposing directions by nectar availability, resulting in highly variable vectorial capacity values.

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2012-10-03
2017-11-20
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Supplementary Data

Erratum

  • Received : 22 Feb 2012
  • Accepted : 14 Jul 2012

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