general info about Theriologia Ukrainica

Theriologia Ukrainica

ISSN 2616-7379 (print) ISSN 2617-1120 (online)

2020 Vol. 19 Contents of volume >>>


download pdfLazariev, D. 2020. Current state of the steppe marmot (Marmota bobak) population in Striltsivskyi Steppe (East of Ukraine). Theriologia Ukrainica, 19: 122-129.


title

Current state of the steppe marmot (Marmota bobak) population in Striltsivskyi Steppe (East of Ukraine)

author(s)

Denys Lazariev

affiliation

Luhansk Nature Reserve of NAS of Ukraine (Stanytsia Luhanska, Ukraine)

bibliography

Theriologia Ukrainica. 2020. Vol. 19: 122-129.

DOI

http://doi.org/10.15407/TU1914

   

language

Ukrainian, with English summary, titles of tables, captures to figs

abstract

The Striltsivskyi Steppe Nature Reserve (with a total area of 522 hectares) was created in 1948 to preserve the steppe marmot population; however, according to the population state studies carried out in the course of the reserve operation, a decrease in the marmot population has been established. This article is aimed to provide current data related to the marmot population monitoring results. The author established the number of colonies as well as adult and this years individuals inhabiting the nature reserve territory in 2020. The author explored the structure of each colonys site and studied their area, shape and number of permanent and temporary burrows to analyze the state of the population. Only a quarter of all colony sites located in the territory of the reserve can be characterized as permanent ones. According to the author, despite a slight increase in the number of colony sites in the northern part of the Kreydyanyi Ravine and slopes towards the Cherepakha River, the entire population tends to decline. A high level of age structure misbalance and pronounced population fragmentation are observed, which are more evident in the left-hand slope in the northern part of the Kreydyanyi Ravine and in the vicinity of the Zapovidna Balka, which characterizes the population state as unstable. Changes in the vegetation cover are the principal reasons for these processes: increased area occupied by bushes, high grass stand, dry grass residues and predators (foxes and domesticated dogs). It is possible to forecast that the number of steppe marmot will continue to fall due to the current state of the vegetation cover state and absence of large grazers. The state of colony sites improves in the territories of with cattle grazing and haymaking. The state of colony sites and number of individuals in the colonies improved to a certain degree in the slopes towards the Cherepakha River where cattle grazing was carried out. As many as four colonies were found there in 2018 while their number reached ten in 2020. Exclusively reserve status under the current steppe conditions without large grazers will fail to improve the marmot population. The author suggests carrying out such actions aimed to prevent the decrease in the number of marmot population in the nature reserve territory as introducing cattle grazing, haymaking in the territories of colony sites, removing high grass near permanent burrows and conducting ecology awareness-building campaigns among the local population to prevent illegal hunting.

keywords

reserve status, colony site, grazing, haymaking, predators, population structure.

   

references

Borovyk, Ye. 2006. Dynamics of number of the marmot (Marmota bobak Muller, 1776) at the territory of "Striltsivsky Steppe" Natural Reserve. Proceedings of the Theriological School, 8: 212216. (In Russian)
Borovik, L. P., E. N. Borovik. 2006. The problem of the mode of conservation of the steppe in reserves: an example of Striltsivsky steppe. Steppe Bulletin, 20: 3133. (In Russian)
Borovik, E. 2014. Structural changes of the steppe marmot (Marmota bobak) family areas under succession in reserve areas. Proceedings the Theriological School, 12: 8188. (In Ukrainian) https://doi.org/10.15407/ptt2014.12.081
Borovik, E. 2015. On the state of the marmot population in the Striltsivsky steppe and the ability of the species to self-restoration. Novitates Theriologicae, 9: 7586.
Mashkin, V. I., N. G. Chelentsev. 1989. Instruction on the Organization and Conduct of Census of Marmots in the USSR. Moscow, 126. (In Russian)
Sakhno, I. 1963. Steppe marmot in the Strletsky Steppe. Hunting and Hunting Economy (Moscow), No. 11: 2324. (In Russian)
Seredneva, T. A. 1985. Population density of the steppe marmots and factors affecting it. Vestnik zoologii, No. 5: 6872. (In Russian)
Tkachenko, V. S., L. P. Borovik, T. V. Sova, G. M. Lysenko. 2009. The structure of vegetation in new area of the Striltsivsky Steppe Reserve (Luhansk Oblast, Ukraine). Visti Biosphere Reserve Askania-Nova, 11: 3547. (In Ukrainian)
Tkachenko, V. S. 2009. "Striltsivsky step" in phytocoenotic monitoring of the Starobilsk steppes. Visti Biosphere Reserve Askania-Nova, 11: 619. (In Ukrainian)
Tokarsky, V. A. 2008. Steppe marmot (Marmota bobak) as a structural-functional link in the steppe biocenoses of Ukraine. Proceedings of the Theriological School, 9: 243249. (In Russian)
Tokarsky, V. A., Grubnik, V. V., Tokarska, N. V. 2019. The current state of the marmot (Marmota bobak) population in the Striltsivsky Steppe. Theriologia Ukrainica, 17: 97103. (In Ukrainian) https://doi.org/10.15407/pts2019.17.097


 


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created: 28.08.2020
updated: 31.12.2020

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