Fine-scale associations between land cover composition and the oviposition activity of native and invasive Aedes (Diptera: Culicidae) vectors of La Crosse virus.
J Vector Ecol
; 49(2): R27-R38, 2024 Dec.
Article
en En
| MEDLINE
| ID: mdl-39315959
ABSTRACT
Land cover is recognized as an important determinant of mosquito community assemblages and pathogen transmission, but few studies have investigated the role of land cover in populations of La Crosse virus (LACV) vectors. La Crosse virus is a zoonotic disease primarily maintained by native Aedes triseriatus, with accessory transmission by invasive vectors Ae. albopictus and Ae. japonicus. The objective of this study was to investigate the association between land cover composition and the egg abundances of LACV vectors in a city with endemic LACV transmission. Oviposition cups were deployed at sites ranging from recreational forests to urban areas. Mixed-effects regression models were used to test the relationships between land cover composition and species abundances. Sites characterized by large percentages of impervious and built surfaces were dominated by Ae. albopictus, but Ae. triseriatus was the most abundant species in forested areas. Aedes japonicus was rare at all sites, but its presence was associated with higher percentages of forested land. These results indicate that forested areas may allow Ae. triseriatus to maintain large populations near urban areas that are dominated by Ae. albopictus. Further research should explore the potential for these land cover-dependent population dynamics to influence LACV transmission cycles.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Oviposición
/
Virus La Crosse
/
Aedes
/
Mosquitos Vectores
Idioma:
En
Revista:
J Vector Ecol
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2024
Tipo del documento:
Article