Invertebrates in the Diet of the Siberian Wood Frog (Rana amurensis) from Central Yakutia

摘要

Siberian wood frogs feed predominantly on Coleoptera insects (66-72% of the insects consumed). Species of 21 insect families have been identified Hydrophilous and hydromesophilous insects (ground beetles, road beetles, carrion beetles, leaf beetles, and weevils) comprise the bulk of wood frog food. The intensity of feeding is maximal at a temperature of 10-15°C. The biomass of daily ration of mature frogs in July averages 1,2-2.15 g. During the active period of life, a frog consumes approximately 450 g of invertebrates (approximately 2000 individuals, including 800 pests). On the whole, Siberian wood frogs consume 10-20% of the insects within its habitat and probably affect their population.