Changes in Relative Species Compositions of Biting Midges (Diptera: Ceratopogonidae) and an Outbreak of Oropouche Virus in Iquitos, Peru

Species compositions of Culicoides paraensis (Goeldi) (Diptera: Ceratopogonidae), the major vector of Oropouche virus to humans in Central and South American urban cycles, and Culicoides insinuatus Ortiz & Leon differed along a northeast-to-southwest transect across Iquitos, Department of Loreto...

Full description

Saved in:
Bibliographic Details
Published in:Journal of medical entomology 2005-07, Vol.42 (4), p.554-558
Main Authors: Mercer, David R., Castillo-Pizango, Maikol J.
Format: Article
Language:English
Subjects:
Animals
arbovirus
arboviruses
Biological and medical sciences
Bunyaviridae Infections - epidemiology
Bunyaviridae Infections - transmission
Ceratopogonidae - growth & development
Culicoides
Culicoides insinuatus
Culicoides paraensis
disease outbreaks
Disease Outbreaks - statistics & numerical data
disease vector
epidemiological studies
Fundamental and applied biological sciences. Psychology
geographical distribution
geographical variation
insect surveys
Insect Vectors
Insecta
Invertebrates
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
Oropouche virus
Peru - epidemiology
POPULATION AND COMMUNITY ECOLOGY
Population Density
Simbu virus
species diversity
tropical Culicoides
Vectors. Intermediate hosts
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Species compositions of Culicoides paraensis (Goeldi) (Diptera: Ceratopogonidae), the major vector of Oropouche virus to humans in Central and South American urban cycles, and Culicoides insinuatus Ortiz & Leon differed along a northeast-to-southwest transect across Iquitos, Department of Loreto, Peru. The relative distributions of the species were consistent with patterns of human outbreaks along the Amazon River. We resumed collection of biting midges between May 2000 and January 2004 at three sites previously sampled (1996–1997) to determine whether the known vector was expanding its range relative to the earlier survey. C. paraensis did not replace C. insinuatus across the region surveyed. Instead, C. insinuatus dominated the more southern sites and significantly increased its relative proportion at all three sites. Apparently, microhabitat differences and not range expansion by C. paraensis were responsible for differences in species compositions across the sample sites.
ISSN:0022-2585
1938-2928
DOI:10.1603/0022-2585%282005%29042%5B0554%3ACIRSCO%5D2.0.CO%3B2