Age distribution of spadefoot toads along the shores of the Kuibyshev Water Reservoir.
D000367:Age Factors; D000818:Animals; D001001:Anura / Q000254:growth & development / Q000502:physiology*; D004463:Ecology; D005260:Female; D005618:Fresh Water; D008297:Male; D011153:Population; D012621:Seasons; D014586:USSR