Marisia - Maros Megyei Múzeum Évkönyve 36/1. (2016)

Zoology

Vlad POSTOLACHI, Vladimir TSURCAN, Nicolae ZUBCOV

Conclusions

In the Republic of Moldova dice snake is spread mainly in the meadow of Dniester and Prut Rivers, favorite sites being rocky, clay and sandy-clay slopes near water basins. Hibernation dens, in the most cases, are located on the slopes exposed to the south, southeast or southwest. Snakes can be also met around standing water basins located in the floodplain of rivers.

Maximum density of the species Natrix tessellata is 150 specimens at 1 km route, but on average it is estimated in limits of 20-40 specimens.

Dimensions of mature snakes in studied populations are between 43.2 and 103.3 cm. Females, usually, are larger than males.

Snakes have very varied coloration due to the presence or lack of pigmentation, of white and black on back and pink, orange on abdomen.

The active period of the species on the territory of Republic of Moldova is between 5 April and 25 September.

The trophic basic object of the dice snake is the fish, whose proportion reaches up to 90% and in natural pools consist of species Neogobius fluviatilis and N. gimnotrachelus.

The greatest danger for the populations of the species Natrix tessellata presents the human and his activity.

Acknowledgments

The research was conducted within the fundamental project 15.187.021 IF at the Institute of Zoology of A.S.M., financed by Supreme Council for Science and Technological Development of Academy of Sciences of Moldova.

Thanks to Mr. Sandu Mosu for his help in determining the species of fish taken from the stomach contents of snakes.

REFERENCES

1. Ваников, А., Даревский, И., Ищенко, В. и др., 1977, Определитель земноводных и пресмыкающихся CCCR Москва: Просвещение, 416 с.

2. Fuhn, I.E., 1969, Broaste, serpi, sopírle. Bucuresti: Stiinta. Natura si omul, 246 p.

3. Шляхтин, Г.В., Голикова, В.А. Методика полевых исследований экологии амфибии и рептилий. Саратов, 1986, 76 с.

4. Куранова, В.Н., Колбинцев, В.Г., 1983, Бескровные методы изучения питания змей. In: Экология наземных позвоночных животных Сибири, Томск, с. 161-169.

DATE PRELIMINARE PRIVITOARE LA DISTRIBUTED, BIOLÓGIA SI ECOLOGIA SARPELUI DE APÄ (NATRIX TESSELLATA, LAURENTI 1768) ÍN REPUBLICA MOLDOVA

(Rezumat)

ín lucrarea de fa|á a fost studiatá distributia actuali a speciei Natrix tessellata pe teritoriul Republicii Moldova. Au fost analizate statiunile preferate ale speciei si amplasarea vizuinilor de iernare. A fost estimatä densitatea serpilor in diferite populatii si analizate unele particularitäti biometrice si morfologice. Au fost evidendate obiectele trofice de bazä si principalii factori de deranj.

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