Dispersal of Male Aedes aegypti in a Coastal Village in Southern Mexico

Most Aedes aegypti dispersal studies have focused on females because of their central role in dengue virus transmission. Only a few mark-release-recapture (MRR) studies provided insights into male Ae. aegypti dispersal. To fill this knowledge gap, we conducted five male Ae. aegypti MRR experiments i...

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Bibliographic Details
Published in:The American journal of tropical medicine and hygiene 2012-04, Vol.86 (4), p.665-676
Main Authors: VALERIO, Laura, FACCHINELLI, Luca, RAMSEY, Janine M, SCOTT, Thomas W
Format: Article
Language:English
Subjects:
Aedes - physiology
Aedes aegypti
Animals
Biological and medical sciences
Climate
Dengue virus
Infectious diseases
Insect Vectors - physiology
Larva - growth & development
Linear Models
Male
Medical sciences
Mexico
Population Density
Population Dynamics
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Summary:Most Aedes aegypti dispersal studies have focused on females because of their central role in dengue virus transmission. Only a few mark-release-recapture (MRR) studies provided insights into male Ae. aegypti dispersal. To fill this knowledge gap, we conducted five male Ae. aegypti MRR experiments in a coastal village in southern Mexico. Small and large male cohorts were marked with fluorescent dusts, released outside buildings, and recaptures were carried out by using backpack aspirators. Recapture rates ranged between 0.35% and 6.55% and median distance traveled was 12-166 meters. A statistically significant difference in median distance traveled with large males dispersing farther than small ones was detected only in one experiment (MRR5: U = 3.5, P < 0.01). Male dispersal data will be useful for constructing and estimating parameter values and validating models that will be used to plan the most effective release strategies for genetically modified male Ae. aegypti.
ISSN:0002-9637
1476-1645
DOI:10.4269/ajtmh.2012.11-0513