title: Effects of organic enrichment on temporal distribution and abundance of culicine egg rafts.
abstract: The effect of organic enrichment of the larval habitat on mosquito oviposition was determined in 2 replicated field experiments. In the first study, Culex stigmatosoma and Culex quinque-fasciatus oviposition (as measured by the number of early instar larvae) reached a maximum peak soon after flooding and then declined to a substantially lower equilibrium level. A group of ponds that later received supplemental organic matter had a significant increase in oviposition soon after the additional organic matter was added. In the second experiment, a similar ovipositional pattern was noted by the sampling of egg rafts along transects and determining larval abundance by the dipping technique. In the second experiment a mixture of Culex stigmatosoma and Culex tarsalis larvae was collected.
authors.affiliation: Department of Entomology, University of California, Riverside 92521, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Beehler
authors.forename: M S
authors.initials: MS
authors.lastname: Mulla
mesh_terms: D000818:Animals; D003465:Culex; D017753:Ecosystem; D005260:Female; D007814:Larva; D010058:Oviposition; D010063:Ovum; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water