By S. m. Drobenkov
This e-book summarizes the result of a long term research of amphibian distribution, ecology and morphology within the Republic of Belarus. For all amphibian species equivalent to Triturus vulgaris, T. cristatus, Bombina bombina, Pelobates fuscus, Bufo bufo, B. viridis, B. calamita, Hyla arborea, Rana temporaria, R. arvalis, R. ridibunda, R. lessonae and Rana esculenta, geographical and habitat distribution, assemblage constitution, feeding, task, replica and improvement are defined. unique research of morphological version and the differentiation of populations through panorama areas are given. neighborhood difficulties of anthropogenic strain and method of species conservation are mentioned. The ebook can also serve a consultant to the amphibians of Belarus and should good be utilized by either experts and amateurs.
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Extra resources for Amphibians of Belarus
Population densities in each season in a typical habitat are usually not high and usually include 25–60, occasionally up to 200 specimens/ha. The highest activity occurs after rains that fall after a long period of a dry weather. The toad digs holes in light soils where it seeks shelter in the hot time of the day. However, it regularly changes refugia. 7%) prevail in the diet of the Natterjack Toad. Feeding does not cease in the breeding season. 36 SERGEI M. DROBENKOV ET AL. 7 m) or in piles of stones used during the summer.
During hibernation in small closed basins with low levels of water aeration mass mortality of frogs occurs (60–80% of individuals). Moor Frog, Rana arvalis Nilsson, 1842 Color Plate 10. The Moor Frog has an extensive geographical range in northeastern France, southern Sweden, Finland, Karelia, the shores of the White Sea, lower reaches of the Pechora, south of Yamal Peninsula and the lower reaches of the Yenisei River in Siberia. The southern limit is near Altai, northern Kazakhstan, the Ural River, the lower reaches of the Volga, as well as Romania, Hungary, and the upper reaches of the Danube and Rhine rivers (Kuzmin, 1999).
The vocal activity of males lasts after the breeding season. In the breeding season, the male choruses are heard during the day and night and stop before morning from 0300– 0600 h (the coldest time). The mating calls do not stop even at air temperatures down to 4°C. The male call, as well as for other frogs of the green frog group, is an acute croaking or loud rumbling “uorrr…” or “crouu …” that can be heard at a distance to 2–3 km. Amplexus is axillary. 3 m. The number of eggs varies from 1032–6200.
Amphibians of Belarus by S. m. Drobenkov