Abstract |
Background. Testudo graeca is common in North Africa, Southern Europe, South-West Asia and the Caucasus. As a species with steadily decreasing numbers and range, it is included in the Red Books of the Russian Federation, the Chechen Republic, Krasnodar region, and the Republic of Dagestan. In the middle of the 20th century it was widespread on the Primorsky lowland and in the foothills of Dagestan. Due to the development of the Primorsky lowland has disappeared in a large part of its territory. In recent years there has been an increasing development of the lower foothills, where the main habitats are located in the republic. The aim of the work is to study the distribution of T. graeca in the foothills, to determine the relative density of populations, the approximate area of preserved and degraded habitats, to make recommendations for the territorial protection of the species in this part of the range.
Materials and methods. Studies were conducted in 2010–2018 in the foothills of Dagestan. They studied the distribution and landscape association of biotopes, calculated the approximate area of habitats using the QGIS2.18 program, and determined their numbers. The habitats studied the terrain, determined the exposure of the slopes and described the type of vegetation.
Results. The turtle is common in the lower foothills at altitudes from 150 to 700 m above sea level. The total area of its turtle range here is more than 100 000 hectares, of which 71 910 hectares of preserved and partially degraded habitats, anthropogenically transformed – 27 580 hectares. The average density in the foothills is 0,2 samples per hectare, which is significantly lower than previously reported in the literature. The most optimal habitats have been preserved in the territory of the “Shurdere” locality, in the vicinity of the village of Shalasi and the Sarykum dune.
Conclusions. To preserve its populations T. graeca, it is necessary to create new protected areas, incorporating preserved habitats in the “Shurdere” area and in the Kayakentsky district, expanding the borders of the existing federal specially protected natural areas – the “Dagestan reserve” and the “Samursky”.
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References |
1. Rhodin A. G. J., Iverson J. B., Bour R., Fritz U., Georges A., Shaffer H. B., P. P. van Dijk. Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. 2017, pp. 1–292.
2. The Reptile Database. Eds.: P. Uetz, P. Freed, Jirí Hošek. Available at: http://www.reptile-database.org (accessed Nov. 14, 2018).
3. Krasovskiy D. B. Izvestiya II Severo-Kavkazskogo pedagogicheskogo instituta [Proceedings of II North Caucasian Pedagogical Isntitute]. 1932, vol. 9, pp. 185–218. [In Russian]
4. Bannikov A. G. Izvestiya Moskovskogo gorodskogo pedagogicheskogo instituta imeni V. P. Potemkina [Proceedings of Moscow City Pedagogical Institute named after V. P. Potemkin]. 1951, vol. 18, pp. 129–167. [In Russian]
5. Bannikov A. G., Darevskiy I. S., Ishchenko V. G., Rustamov A. K., Shcherbak N. N. Opredelitel' zemnovodnykh i presmykayushchikhsya fauny SSSR [Identification guide of amphibians and vermigrades of the USSR]. Moscow: Prosveshchenie, 1977, 414 p. [In Russian]
6. Leontyeva O. A., Gallamov R. R., Slavinskaya I. V. Current studies in Herpetology. Le Bourget du Lac: SEH, 1998, pp. 263–268.
7. Kostina G. N., Galichenko M. V. Vliyanie antropogennykh faktorov na strukturu i funktsionirovanie biotsenozov i ikh otdel'nykh komponentov: mezhvuz. sb. nauch. tr. [The impact of anthropogenic factors on the structure and functioning of biocoenoses and their seprate components: interuniversity collected papers]. Moscow, 1998, pp. 80–84. [In Russian]
8. Mazanaeva L. F. Chelonii. 2001, vol. 3, pp. 59–66.
9. Tuniev B. S., Tuniev S. B. Krasnaya kniga Krasnodarskogo kraya. Zhivotnye [The Red Book of Krasnodar region. Animals]. Krasnodar, 2007, pp. 336–357. [In Russian]
10. Orlova V. F., Starkov V. G., Mazanaeva L. F. Voprosy gerpetologii: materialy IV s"ezda Gerpetologicheskogo obshchestva imeni A. M. Nikol'skogo [Issues of herpetology: proceedings of IV congress of the Nikolsky Herpetological Society]. Saint-Petersburg: Russkaya kollektsiya, 2011, no. 203, pp. 203–207. [In Russian]
11. Krasnaya kniga Rossiyskoy Federatsii (zhivotnye) [The Red Book of the Russian Federation
(animals)]. Moscow: AST: Astrel', 2001, 862 p. [In Russian]
12. Krasnaya kniga Chechenskoy Respubliki: Redkie i nakhodyashchiesya pod ugrozoy ischeznoveniya vidy rasteniy i zhivotnykh [The Red Book of the Chechen Republic: Rare and endangered species of plants and animals]. Groznyy: Yuzhnyy izdatel'skiy dom, 2007, 432 p. [In Russian]
13. Krasnaya kniga Krasnodarskogo kraya (zhivotnye) [The Red Book of Krasnodar region (animals)]. 2nd ed. Krasnodar: Tsentr razvitiya PTR Krasnodarskogo kraya, 2007, 504 p. [In Russian]
14. Krasnaya kniga Krasnodarskogo kraya. Zhivotnye [The Red Book of Krasnodar region. Animals]. 3rd ed. Krasnodar: Adm. Krasnodarskogo kraya, 2017, 720 p.
15. Krasnaya kniga Respubliki Dagestan [The Red Book of the Republic of Dagestan]. Makhachkala: Respublikanskaya gazetno-zhurnal'naya tipografiya, 2009, 552 p. [In Russian]
16. Krasnaya Kniga Azerbaydzhana [The Red Book of Azerbaijan]. Baku, 2013, 493 p. [In Russian]
17. Krasnaya kniga Gruzinskoy SSR: Redkie i nakhodyashchiesya pod ugrozoy ischeznoveniya vidy zhivotnykh i rasteniy. Nekotorye pamyatniki neorganicheskoy prirody [The Red Book of the Georgian SSR: Rare and endangered species of animals and plants. Certain monuments of non-organic nature]. Tbilisi: Sabchota Sakartvelo, 1982, 255 p. [In Russian]
18. Krasnaya kniga Armyanskoy SSR: Redkie i nakhodyashchiesya pod ugrozoy ischeznoveniya vidy zhivotnykh [The Red Book of the Armenian SSR: Rare and endangered species of animals]. Erevan: Ayastan, 1987, 123 p. [In Russian]
19. Common Tortoise. Available at: https://www.iucnredlist.org/species/21646/9305693
20. Mazanaeva L. F. Redkie pozvonochnye zhivotnye zapovednika «Dagestanskiy» (pod red. G. S. Dzhamirzoeva i S. A. Bukreeva): tr. zapovednika «Dagestanskiy» [Rare vertebrates of the “Dagestanskiy” nature reserve (edited by G. S. Dzhamirzoev and S. A. Bukreev): proceedings of the “Dagestanskiy” nature reserve]. Makhachkala, 2013, iss. 6, pp. 48–55. [In Russian]
21. Banik M. V., Dzhamirzoev G. S., Atemasov A. A., Goncharov G. L. Geoekologicheskie i bioekologicheskie problemy Severnogo Prichernomor'ya: materialy Mezhdunar. nauch.-prakt. konf. [Geoecological and bioecological problems of the Northern Balck Sea region: proceedings of an International scientific and practical conference]. Tiraspol, 2000, pp. 18–20. [In Russian]
22. Dzhamirzoev G. S., Tertyshnikov M. F. Gerpetologicheskiy vestnik [Herpetological bulletin]. 2000, vol. II, no. 3/4, pp. 23–25. [In Russian]
23. Mazanaeva L. F., Gichikhanova U. A. Sovremennaya gerpetologiya [Modern herpetology]. 2018, vol. 18, no. 3/4, pp. 34–45. [In Russian]
24. Mazanaeva L. F., Orlova V. F., Iljina E. V., Starkov V. G. Status and Protection of Globally Threatened Species in the Caucasus. Tbilisi: CEPF, WWF. Contour Ltd., 2009, pp. 143–150.
25. Shiffers E. V. Sel'skoe khozyaystvo Dagestana [Agriculture of Dagestan]. Moscow; Leningrad: Izd-vo AN SSSR, 1946, 396 p. [In Russian]
26. Chilikina L. N., Shiffers E. V. Karta rastitel'nosti DASSR s ob"yasnitel'nym tekstom [The vegetation map of the DASSR with explanations]. Moscow; Leningrad: Izd-vo AN SSSR, 1962, 94 p. [In Russian]
27. Gurlev I. A. Prirodnye zony Dagestana [Native zones of Dagestan]. Makhachkala: Daguchpedgiz, 1972, 212 p. [In Russian]
28. Gyul' K. K., Vlasova S. V., Kisin I. M., Terterov A. A. Fizicheskaya geografiya Dagestanskoy ASSR [Physical geography of the Dagestan ASSR]. Makhachkala, 1959, 250 p. [In Russian]
29. El'darov M. M. Fizicheskaya geografiya nizmennogo Dagestana [Physical geography of a lowland Dagestan]. Makhachkala: Daguchpedgiz, 1972, 178 p. [In Russian]
30. Gulisashvili V. Z., Makhatadze L. B., Prilipko L. I. Rastitel'nost' Kavkaza [Vegetation of the Caucasus]. Moscow: Nauka, 1975, 233 p. [In Russian]
31. Ataev Z. V. Landshafty predgornogo Dagestana i voprosy ikh agrokhozyaystvennoy optimizatsii: avtoref. dis. kand. geogr. nauk [Landscapes of a piedmont Dagestan and problems of thei agricultural optimization: author’s abstract of dissertation to apply for the degree of the candidate of geographical sciences]. Voronezh: Izd-vo Voronezhskogo gos. un-ta, 2002, 27 p. [In Russian]
32. Shlyakhtin G. V., Golikova V. L. Metodika polevykh issledovaniy ekologii amfibiy i reptiliy [The methodology of field studying the ecology of amphibians and reptiles]. Saratov: Izd-vo Saratovskogo un-ta, 1986, 77 p. [In Russian]
33. Shcherbak N. N. Rukovodstvo po izucheniyu zemnovodnykh i presmykayushchikhsya [Guidelines on studying amphibians and vermigrades]. Kiev, 1989, pp. 121–125.
34. Kheyer V. R., Donnelli M. A., Mak-Dayermid R. V., Kheyek L.-E. S., Foster M. S. Izmerenie i monitoring biologicheskogo raznoobraziya: standartnye metody dlya zemnovodnykh [Measuring and monitoring biodiversity: standard methods for amphibians]. Moscow: Tovarishchestvo nauchnykh izdaniy KMK, 2003, 380 p. [In Russian].
35. Galushko A. I. Flora Severnogo Kavkaza: opredelitel'. T. 1 [The flora of the North Caucasus: identification guide. Vol. 1]. Rostov-on-Don: Izd-vo Rostovskogo un-ta, 1978, 320 p. [In Russian]
36. Grossgeym A. A. Opredelitel' rasteniy Kavkaza [Plants identification guide of the Caucasus]. Moscow: Sovetskaya nauka, 1949, 748 p. [In Russian]
37. Darevskiy I. S. Amfibii i reptilii zapovednykh territoriy [Amphibians and reptiles of nature reserves]. Moscow, 1987, pp. 85–101. [In Russian]
38. Novikov G. A. Polevye issledovaniya ekologii nazemnykh pozvonochnykh zhivotnykh [Field studying of the ecology of terrestrial vertebrates]. Moscow: Sovetskaya nauka, 1949, 662 p. [In Russian]
39. Dinesman L. T., Kaletskaya M. L. Metody ucheta i geograficheskoe raspredelenie nazemnoy fauny [Record methods and geographical distribution of the terrestrial fauna]. Moscow, 1952, pp. 329–340. [In Russian]
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