The effect of temperature on Anopheles mosquito population dynamics and the potential for malaria transmission.

Published

Journal Article

The parasites that cause malaria depend on Anopheles mosquitoes for transmission; because of this, mosquito population dynamics are a key determinant of malaria risk. Development and survival rates of both the Anopheles mosquitoes and the Plasmodium parasites that cause malaria depend on temperature, making this a potential driver of mosquito population dynamics and malaria transmission. We developed a temperature-dependent, stage-structured delayed differential equation model to better understand how climate determines risk. Including the full mosquito life cycle in the model reveals that the mosquito population abundance is more sensitive to temperature than previously thought because it is strongly influenced by the dynamics of the juvenile mosquito stages whose vital rates are also temperature-dependent. Additionally, the model predicts a peak in abundance of mosquitoes old enough to vector malaria at more accurate temperatures than previous models. Our results point to the importance of incorporating detailed vector biology into models for predicting the risk for vector borne diseases.

Full Text

Cited Authors

  • Beck-Johnson, LM; Nelson, WA; Paaijmans, KP; Read, AF; Thomas, MB; Bjørnstad, ON

Published Date

  • January 2013

Published In

Volume / Issue

  • 8 / 11

Start / End Page

  • e79276 -

PubMed ID

  • 24244467

Pubmed Central ID

  • 24244467

Electronic International Standard Serial Number (EISSN)

  • 1932-6203

International Standard Serial Number (ISSN)

  • 1932-6203

Digital Object Identifier (DOI)

  • 10.1371/journal.pone.0079276

Language

  • eng