Dispersal and Survival of Field and Laboratory Strains of Culex Tarsalis (Diptera: Culicidae)1
- 31 March 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Medical Entomology
- Vol. 17 (2) , 146-150
- https://doi.org/10.1093/jmedent/17.2.146
Abstract
Mark-release-recapture studies were made in Kern County, California, of the field dispersal and survival of Culex tarsalis of laboratory-colony and field origin. Genetically translocated males from the laboratory generally were recaptured close to the points of release and did not appear to disperse well into the native population. Overall recapture rates for colony females were very high (27.4–41.0%) compared to rates for field females (3.4–13.1 %) and dispersal, in terms of distance or recaptures from release points, was significantly less lor colony than for field females. Regression estimates of daily survival, which reflect loss from mortality and emigration, ranged from 38% to 44% for colony females and from 60% to 72% for field specimens. Colony mosquitoes had the same or similar genetic background as translocation males that were released in experimental genetic control trials. Apparent behavioral differences between colony and field mosquitoes and a relative unfitness for survival of colony specimens could present major barriers to successful genetic control of Cx. tarsalis.This publication has 2 references indexed in Scilit:
- Estimates of Survival, Population Size, and Emergence of Culex tarsalis at an Isolated Site1,2Annals of the Entomological Society of America, 1978
- Mating Competitiveness of Culex tarsalis1 Double Translocation Heterozygote Males in Laboratory and Field Cage Trials3Annals of the Entomological Society of America, 1977