title: [Characteristics of basic phenoperiods of fleas--parasites of small and mountain susliks in the Northern Caucasus].
abstract: For the fleas of sousliks of the North Caucasus, whose imagoes are in nature throughout a year, the authors identify three phenoperiods: 1) a phenoperiod of gonotropic activity (in fleas that have two generations, it consists of a phenophase of multiplication of second-generation imagoes of a previous year and of that of multiplication of first-generation imagoes of a current year; 2) a phenoperiod of preparation for gonotropic hibernation; 3) a phenoperiod of gonotropic hibernation. In the fleas that exist as imagoes for a short period of a year, in spring and summer, the authors single out two phenoperiods: imaginal and preimaginal that consists of a phenophase of flea existance at the stages of metamorphosis and a phenophase of imago cocooning.
authors.forename: L I
authors.initials: LI
authors.lastname: Beliavtseva
authors.forename: L V
authors.initials: LV
authors.lastname: Briukhanova
mesh_terms: D000818:Animals; D006605:Hibernation; D010507:Periodicity; D012426:Russia; D012589:Sciuridae / Q000469:parasitology* / Q000502:physiology; D005423:Siphonaptera