Naslov
Effect of environment on mosquito dispersal

Autori
Sudarić Bogojević, Mirta ; Merdić, Enrih ; Lothrop B. Branka ; Lothrop, Hugh

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the 5th international congress of vector ecology, Society of vector ecology / Caglar, Selim Sualp ; Alten, Bulent ; Ozer, Nurdan - Ankara : RITM Ajans, 2009

ISBN
975-97294-0-8

Skup
5th International Congress of Vector Ecology ; Vectors without borders

Mjesto i datum
Belek, Turska, 11.10.2009. - 16.10.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mosquito dispersal; environment; Cx. tarsalis

Sažetak
The purpose of the study was to determine the direction of mosquito dispersal for species Culex tarsalis Coquillett, a major vector of arboviruses (Western equine encephalomyelitis, St. Louis encephalitis, West Nile) and to examine the environmental effect on dispersion. A mark-release-recapture experiment was conducted in the period October 22 – November 6, 2007, in the area of Mecca town in Coachella Valley, California. Mosquito traps (CO2 baited CDC-traps without lights) were installed at 40 locations and six different habitats (desert, date gardens, citrus orchards, vineyards, agricultural area and urban area). Of 11, 520 and 12, 370 fluorescent dust-marked (orange and aqua) females that were released at two locations: northeast and southwest of small town Mecca, 1.13 and 1.10% were recaptured, respectively. More than 50% of the marked mosquitoes were collected in the desert while only 3.4% in semi-urban habitat. The statistical analysis (ANOVA) indicated that in the desert surroundings the number of marked mosquitoes significantly increases with the increase of the desert habitat, while with the increase of the semi-urban habitat that number significantly decreases. However, within the rural/desert areas, the portion of agricultural area, citrus orchards, vineyards and date gardens has no statistically significant bearing. The regression analysis confirmed a decreased number of marked mosquitoes with distance from release site and increased angle of deflection from the North. A significant tendency of mosquito dispersal to the south was recorded for both release points, probably due to the most favourable feeding places and oviposition sites and potentially increase humidity caused by the vicinity of large ponds. Furthermore, there is a possibility that the wind, predominantly northern during the investigation period, had an influence on mosquito dispersal direction.

Izvorni jezik
Engleski

POVEZANOST RADA