scholarly journals MORPHOMETRIC CHARACTERISTICS OF BOMBINA BOMBINA (DISCOGLOSSIDAE, ANURA) IN THE MEDVEDITSA RIVER VALLEY (SARATOV REGION) AND NONINVASIVE SEX DIAGNOSTICS BY SIZE AND WEIGHT TRAITS

2018 ◽  
Vol 18 (1-2) ◽  
pp. 27-34
Author(s):  
Mikhail V. Yermokhin ◽  
◽  
Vasily G. Tabachishin ◽  
Keyword(s):  
River Valley ◽  
Morphometric Characteristics ◽  
Saratov Region ◽  
Bombina Bombina

scholarly journals An abnormally early hibernation ending of the Red-bellied toad (Bombina bombina) (Discoglossidae, Anura) in the populations of the Medveditsa river valley (Saratov region)

2021 ◽  
pp. 89-96
Author(s):  
M. V. Yermokhin ◽  
V. G. Tabachishin
Keyword(s):  
Water Temperature ◽  
Annual Cycle ◽  
River Valley ◽  
Shallow Waters ◽  
Spawning Grounds ◽  
Saratov Region ◽  
Local Populations ◽  
Bombina Bombina ◽  
Long Term Studies

In the course of our long-term studies of the phenology of spawning migrations of anuran amphibians, which began in the Medveditsa river valley (near the Uritskoye village, Lysogorsky district, Saratov region) in 2009, an abnormally early end of the wintering period was recorded for the red-bellied toad (Bombina bombina) in the spring of 2020, namely, March 13. The anomaly was longer than a month in relation to the long-term average date of arrival of this species to its spawning grounds (April 18). The water temperature in the shallow waters of the spawning reservoir on this day was 10.2°С to a depth of 0.1 m, and 4.8°С at a depth of 0.5 m, and did not differ significantly from the average values typical for this phase of the B. bombina annual cycle in adjacent populations. The possible significance of this anomaly for the reproduction of local populations of B. bombina is discussed.

scholarly journals New data on the distribution of Pallas's spadefoot toad ( (Pallas, 1771)) and fire-bellied toad ( L., 1761) (Anura, Amphibia) on the territory of the Saratov region and adjacent territories

2021 ◽  
Vol 21 (3/4) ◽  
pp. 138-143
Author(s):  
V. G. Tabachishin ◽  
◽  
M. V. Yermokhin ◽  
Keyword(s):  
Geographical Distribution ◽  
Water Bodies ◽  
Saratov Region ◽  
Anuran Amphibians ◽  
Spadefoot Toad ◽  
Bombina Bombina ◽  
River Valleys

New data on the geographical distribution of Pelobates vespertinus and Bombina bombina in the Saratov region and adjacent districts of the Volgograd, Voronezh, Penza and Ulyanovsk regions are presented. The habitation of B. bombina and P. vespertinus populations in 25 and 22 localities, respectively, was established. Most modern populations of these species of anuran amphibians have been recorded near water bodies in river valleys.

scholarly journals STRUCTURAL DYNAMICS OF THE SPAWNING ANURAN TAXOCENOSES IN FLOODPLAIN LAKES OF THE MEDVEDITSA RIVER VALLEY (SARATOV REGION)

2017 ◽  
Vol 17 (3-4) ◽  
pp. 147-156
Author(s):  
Yermokhin M. V. ◽  
◽  
Tabachishin V. G. ◽  
Ivanov G. A. ◽  
◽  
...  
Keyword(s):  
Structural Dynamics ◽  
Floodplain Lakes ◽  
River Valley ◽  
Saratov Region

scholarly journals Abnormally Early Nesting of Acanthis cannabina (Linnaeus, 1758) (Fringillidae, Aves) in the Latryk River Valley (Saratov Region)

2020 ◽  
pp. 367-373
Author(s):  
V. G. Tabachishin ◽  
M. V. Yermokhin
Keyword(s):  
Ultraviolet Radiation ◽  
Meteorological Factors ◽  
Field Research ◽  
Reproductive Period ◽  
River Valley ◽  
Daily Temperature ◽  
Early Start ◽  
Local Climate ◽  
Saratov Region ◽  
Average Daily Temperature

During our field research in March–May of 2017–2020 in the valley of the Latryk river (Saratov region), it was found that the phenological norm of the beginning of the nesting period of Acanthis cannabina should be dated as the last decade of April. However, under conditions of the local climate transformation, its stability is lost and the emergence of an abnormally early start of the reproductive period of A. cannabina becomes possible. The oviposition onset of A. cannabina could be stimulated by two meteorological factors, namely, a rapid increase in the average daily temperature and, to a greater extent, an increased intensity of ultraviolet radiation in the spring.

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