title: [Fertility changes in Leptopsylla segnis (Siphonoptera: Leptopsyllidae) fleas depending on the duration of their preliminary contact with the food source].
abstract: In experiments the fecundity of Leptosylla segnis was depended upon duration of the preliminary contact of the host (white mouse) with fleas of the same species. As the duration of the contact was promoted the daily mean number of eggs per female at first (at time of contact from 1 to 6 days) increased, then (at time of contact 7-12 days) declined and decreased below original level at 13-30 days of contact. It is supposed that observed changes in fleas fecundity were connected with the immune reactions of the host to the bites of insects.
authors.forename: V S
authors.initials: VS
authors.lastname: Vashchenok
mesh_terms: D000818:Animals; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D005298:Fertility / Q000502:physiology; D006790:Host-Parasite Interactions; D051379:Mice / Q000469:parasitology; D005423:Siphonaptera / Q000502:physiology*; D013997:Time Factors