Oviposition interval and gonotrophic concordance in Southeast Asian anophelines

, , , , , ,
1 Medical Entomology, Liverpool School of Tropical Medicine, Liverpool, U.K.
2 Centro Nacional de Malaria, Phnom Penh, Cambodia
3 National Center for Parasitology, Entomology and Malaria Control, Centro Nacional de Malaria, Phnom Penh, Cambodia
4 University of Basel,, CH-4003 Basel,, Switzerland
5 Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
6 University of Basel, Basel, Switzerland
DOI
10.7287/peerj.preprints.582v1
Published
Accepted
Subject Areas
Animal Behavior, Biodiversity, Ecology, Parasitology
Keywords
Oviposition interval, mosquitoes, Cambodia, malaria, gonotrophic concordance, diversity
Copyright
© 2014 Charlwood et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ PrePrints) and either DOI or URL of the article must be cited.
Cite this article
Charlwood JDD, Phala N, Sovannaroth S, Morgan J, Hemingway J, Chitnis N, Briët OJ. 2014. Oviposition interval and gonotrophic concordance in Southeast Asian anophelines. PeerJ PrePrints 2:e582v1

Abstract

Mosquito survival and oviposition interval are important disease vector’s determinants that may vary within species depending on the environment. The length of the oviposition interval may be estimated by the proportion of mosquito ovaries with sacs. Fourteen species of Anopheles were collected from four locations in Cambodia and 1965 specimens were dissected. Both the number and predominant species collected varied according to location and trapping method. Five species were collected in sufficient numbers to allow comparisons between locations Sac rates differed between species but not within species between locations. Anopheles minimus had a higher sac rate in weeks leading up to a full moon. The more preserved environments supported more diverse anopheline fauna than the degraded environments. Despite the fact that many of the species occurred at very low densities there was no evidence of gonotrophic dissociation in any of the species. The principal malaria vector, An. dirus, was only common in one location where it was collected in miniature light-traps. It is suggested that a nationwide survey using such traps may help in determining patterns of malaria transmission in Cambodia.

Author Comment

This is a submission to PeerJ for peer review.

Supplemental Information

Computer code for calculation of a Bayesian model to estimate confidence intervals for u2

DOI: 10.7287/peerj.preprints.582v1/supp-1

Raw data used in the present paper

DOI: 10.7287/peerj.preprints.582v1/supp-2