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Distribution and population density of the Russian desman (Desmana moschata L., Talpidae, Insectivora) in the Middle Volga of Russia


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Figure 1

Past and present distribution of the Russian desman in Mordovia. Note: the dotted line indicates the current range of the species within the region, the black fill indicates the distribution area until 1970 (Borodin 1963, 1970). ★ – Stationary observation points for desmans set up by L.P. Borodin (1970); I.S. Tereshkin (1971); N.K. Shidlovskaya (2018). ■ – Desman registration points in 1982 (Report, 1982) ① to ⑳ – Desman registration points according to the results of this research; the point numbering is given in the Table 1.
Past and present distribution of the Russian desman in Mordovia. Note: the dotted line indicates the current range of the species within the region, the black fill indicates the distribution area until 1970 (Borodin 1963, 1970). ★ – Stationary observation points for desmans set up by L.P. Borodin (1970); I.S. Tereshkin (1971); N.K. Shidlovskaya (2018). ■ – Desman registration points in 1982 (Report, 1982) ① to ⑳ – Desman registration points according to the results of this research; the point numbering is given in the Table 1.

Figure 2

Records of the Russian desman in Tengushevsky District. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Tengushevsky District. Note: water bodies are shown in white, ★ – desman registration points.

Figure 3

Records of the Russian desman in Krasnoslobodsky District. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Krasnoslobodsky District. Note: water bodies are shown in white, ★ – desman registration points.

Figure 4

Records of the Russian desman in Temnikovsky District. The first station. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Temnikovsky District. The first station. Note: water bodies are shown in white, ★ – desman registration points.

Figure 5

Records of the Russian desman in Temnikovsky District. The second station. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Temnikovsky District. The second station. Note: water bodies are shown in white, ★ – desman registration points.

Figure 6

Records of the Russian desman in Zubovo-Polyansky District. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Zubovo-Polyansky District. Note: water bodies are shown in white, ★ – desman registration points.

Figure 7

Records of the Russian desman in Ardatovsky District. Note: water bodies are shown in white, ★ – desman registration points.
Records of the Russian desman in Ardatovsky District. Note: water bodies are shown in white, ★ – desman registration points.

Figure 8

Records of the Russian desman in Kochkurovsky District. Note: water bodies are shown in white.
Records of the Russian desman in Kochkurovsky District. Note: water bodies are shown in white.

Figure 9

Changes in the number of Mordovian population of the Russian desman during the last 50 years. Data for 1966 – according to Borodin (1970). Data for 1982 – according to Vechkanov et al. (1982). Data for 2018 – according to our data for 2009–2018.
Changes in the number of Mordovian population of the Russian desman during the last 50 years. Data for 1966 – according to Borodin (1970). Data for 1982 – according to Vechkanov et al. (1982). Data for 2018 – according to our data for 2009–2018.

Relative numbers of desmans and their total reserve by results of surveys in 2009–2018.

YearPoint numberDistrictName of the reservoir or the nearest settlement (georeferencing)The total length of the coastline, kmPopulation density, burrows/km (quality class)Desman reserve, individuals
20091TemnikovskyLake Picherki2.11.1 (IV)4
2TemnikovskyLake Tucherki1.7<0.5 (V)2
3TemnikovskyRiver Kundybolka and Lakes Zhegalovo, Mochalnoe, Bolshoe Palkino, Maloe Palkino8.18.2 (III)89
4KrasnoslobodskyReclamation canal northwest of the village Nagornoye Shenino2.37.1 (III)30
5KrasnoslobodskyReclamation canal at Lake Ramenskoye2.210.5 (III)43
6TorbeyevskyRiver Vindrey and Lake near the village Windray58.10.8 (IV)20
7Zubovo-PolyanskyLake Belye2.24.4 (IV)18
8Zubovo-PolyanskyRiver Yavas from the village of Ozerny to the mouth at the confluence of River Vad75.32.5 (IV)79
9ArdatovskyLake Parma4.60.6 (IV)5
201010KrasnoslobodskyLake Churilka and reclamation canals4.49.3 (III)76
201111ElnikovskyRiver Nuluy35,1<0.5 (V)8
12TengushevskyLake Telimerki and reclamation canals7.22.2 (IV)30
13TengushevskyReclamation canals northeast of the village Standrovo10.12.2 (IV)41
14Zubovo-PolyanskyRiver Partsa near the village Romanovka92.4<0.5 (V)60
15Zubovo-PolyanskyRiver Vad114.1<0.5 (V)74
16Zubovo-PolyanskyRiver Partsa between the villages of Romanovka and Partsa92.4<0.5 (V)60
20127Zubovo-PolyanskyLake Belye2.26.1 (III)18
201317TemnikovskyLake near the village Mitryaly2.5<0.5 (V)2
201410KrasnoslobodskyLake Churilka and reclamation canals4.410.1 (III)76
20156TorbeyevskyRiver Vindrey and Lakes near the village Vindrey58.10.6 (IV)20
201718Zubovo-PolyanskyRiver Partsa between the villages of Romanovka and Vasilevka92.4<0.5 (V)60-
19TemnikovskyLake north of the village Nizhniye Borki2.1<0.5 (V)2
201812TengushevskyLake Telimerki and reclamation canals7.22.2 (IV)30
13TengushevskyReclamation canals northeast of the village Standrovo10.13.1 (IV)41
20TengushevskyLake Bolshoye, south of the village Kuraevo4.12.1 (IV)5
On average1.6Total 588
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