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SIGNIFICANCE OF PROTECTED AREAS FOR THE PALLAS'S CAT (OTOCOLOBUS MANUL: FELIDAE) CONSERVATION IN RUSSIA
Anna N. Barashkova1, Vadim E. Kirilyuk2, Ilya E. Smelansky1
1Sibecocenter, Russia 2Daursky State Nature Biosphere Reserve, Russia e-mail: [email protected]
Received: 12.04.2017
The Pallas's cat, or Manul, Otocolobus manul, belongs to the small felines. In Russia this species is located at the northern periphery of its range. Potential habitats of this species within its Russian range's part have been highlighted on the base of remote sensing data, topographic maps and digital cartographic models. Maps of the Pallas's cat's records in Russia have been compiled using literature data, authors' own data and information provided by contributors of the online database «Small Wild Сats of Eurasia». We have shown the representation of potential habitats of the Pallas's cat and its actual registrations within Protected Areas of Russia. The total area of potential habitats for this species in Russia is assessed as 145,150 km2. The presence of Manul is confirmed for five regions of Russia: Republic of Altai, Republic of Tyva, Republic of Buryatia, Krasnoyarsk Krai, Trans-Baikal Krai. The registration of the species' records mainly corresponds to the location of its potential habitats. The main categories of both federal and regional Russian Protected Areas cover 10.8% (13.5% taken with the buffer zones) of the total area of potential habitats for the Pallas's cat. The significance of each Protected Area for Manul conservation has been considered in detail. We have discussed whether the representativeness of the existing Protected Areas is sufficient for conservation of this species. We have identified the main territorial gaps that reduce the Pallas's cat protection in some parts of the Russian range.
Key words: distribution, online database, Otocolobus manul, Pallas's cat, potential habitats, Protected Areas, territorial protection, territorial protection gaps
Introduction
The Pallas's сat or Manul, Otocolobus manul Pallas, 1776, belongs to the small cats (Fig. 1). In Russia this species is located at the northern periphery of its global range and associated mainly with mountain-steppe areas along the border with Mongolia. There the species inhabits the steppes of the Central Asian type. These occupy more or less extensive areas in South Siberia from the Southeast Altai to Dauria (Gadghiev et al., 2000).
General aridity and coincidence of most part of precipitation to the summer period are typical for the climatic conditions of this region. As a consequence, while the severity and relatively long duration are typical for the winter period, the snow cover is usually shallow or it may be absent in some places (especially in Dauria) during most of the winter period. Shallow snow cover is a crucially important circumstance for Pallas's cats (Kirilyuk & Puzansky, 2000).
The Manul is considered as a naturally rare species. In the XX century the species was impacted by the significant reduction of the area of suitable habitats due to agricultural development. In the same period the global population number had decreased, in particular as a result of massive pesticides use. The Manul is listed on the IUCN
Red List as Near Threatened (Ross et al., 2016). Also it is listed in the Red Data Book of the Russian Federation (2001) and the Red Data Books of all five Russian provinces where it is reliably known: Republic of Altai (2007), Republic of Tyva (2002), Republic of Buryatia (2013), Krasnoyarsk Krai (2012), and Trans-Baikal Krai (2012).
One of the main ways to implement the conservation status of the Pallas's cat is its providing by territorial protection (along with the prohibition of hunting and its derivatives trafficking). It is necessary to assess the level of the species' protection within the Protected Areas to judge the effectiveness of the species' conservation and to plan further conservation efforts.
Until 1978, the Pallas's cat was an object of hunting. Its abundance and distribution could be judged by the massive data on harvested skins. Since its inclusion in the Red Data Book of the USSR (1978, 1984), the Pallas's cat's hunting was banned completely. Obviously, this effort has reduced the anthropogenic pressure on the species. But this also has interrupted the receipt of data which were the base for the estimation of the abundance and distribution of this rare species. At the same time, very few studies on the Pallas's cat have been carried out in Russia until the last
decade. Most of them were conducted in limited areas. Monitoring studies were conducted in the Daursky Reserve. Nutrition and behaviour of this rare species were studied (Kirilyuk, 1999; Kirily-uk & Puzansky, 2000). In the Republic of Tyva, counts of the Manul were conducted several times in the framework of the creation of the rare animal species cadastre and to clarify the catch quotas of animals for zoos (Barashkova, 2005; Report on scientific work, 2006). The Laboratory of Ecology and Systematics of Animals of the Institute of General and Experimental Biology of the Siberian Branch of RAS has also conducted several winter surveys in Buryatia (Borisova, personal communication). In the late 1980s - early 1990s, the Central Research Laboratory of the Main Hunting Agency organised a questionnaire survey. According to its results, expert estimates of the abundance of the Pallas's cat in the regions were conducted. These data were included in the first edition of the Red Data Book of the Russian Federation (2001). Barashkova (2005) carried out the overview of the Manul population status and the state of knowledge on this species in Russia. In subsequent years, the distribution and abundance of the Pallas's cat in Russia are systematically studied in the framework of a long-term project of the Sibecocenter in cooperation with the Daursky Reserve, the Uvs Nuur
Basin (Ubsunurskaya Kotlovina) Reserve and the Sailugem National Park. Some reserves and national parks have established the monitoring studies of abundance and occurrence frequency of the Pallas's cat using the method of winter snow track census and the systematic installation of camera traps. In recent years the A.N. Severtsov Institute of Ecology and Evolution of RAS, in co-operation with the Daursky Reserve, have begun studies on the diseases of the Pallas's cat (Naidenko et al., 2014; Pavlova et al., 2015).
Material and Methods
The map of potential habitats of the Pallas's cat was prepared using the GIS software (ArcView 3.3, ArcGIS 9.3, ESRI, CA, USA) on the base of the topographic map (scale 1:200,000) with clarification of the terrain pattern using satellite imagery (Landsat), landscape map, digital terrain model taking into account the survey results, literature data and other information about the species' habitats. Additionally, we used our own data obtained during field studies of the Manul (winter track counts, collection of interview data) in the Republic of Altai, Republic of Tyva, Republic of Buryatia, Trans-Baikal Krai in 1994-2017, and unpublished data from the online database «Small Wild Cats of Eurasia» (Barashkova et al., 2017).
Fig. 1. Pallas's cat captured by a camera trap in the valley of the river Chagan-Uzun (Republic of Altai) in 2014.
As potential habitats of the Pallas's cat, we have taken various mountain-steppe and steppe ecosystems in Russian part of the species' range. Among them there are high-mountain cryophytic steppes and steppe shrubs thickets, intrazonal biotopes located in steppe zone and in steppe belts of highmountain systems: rock outcrops and screes, flood-plain tree-shrub complexes, island pine and larch forests. Based on this map, we have determined the area of potential habitats for the Pallas's cat for each region of Russia and their total area in Russia.
We have combined the obtained map of potential habitats with the digital map (GIS layer) of Protected Areas in Russia (Kalikhman et al., 2012; Map of remained steppe ecosystems (steppe massifs) of Russia, 2017; Map of Protected Areas of Russian Federation, 2017). We have accounted all Protected Areas types of federal and regional significance, except for nature monuments and botanical gardens, because their total area is relatively small. Table 1 presents the main characteristics of Protected Areas in the regions where the Manul is known. These data are presented according to regional state reports on the environment state for 2015 (The report, 2016a,b; The state report, 2016a,b,c).
Through superimposing GIS-layers, we obtained the intersection of Protected Areas contours with the contours of potential habitats of the Pallas's cat. Thus, we have determined the potential habitat's areas located within the boundaries of Protected Areas. On the basis of these parameters, we have counted: a) percentage of the area of potentially suitable habitats for the Pallas's cat within each concrete Protected Area; b) percentage of potential habitats' area located within Protected Areas for each region.
Undoubtedly, the Pallas's cat uses the habitats within the range with different intensity. So, previously, key areas and habitats of the Pallas's cat supporting existence of its population were identified for some territories within structure of species' habitats (Barashkova et al., 2010; Kiri-lyuk & Barashkova, 2011; Barashkova, 2012). In this article, we consider the potential habitats of the Pallas's cat without taking into account their ecological heterogeneity and actual inhabitation by animals.
Calculations were conducted using the software MS Excel 2003 and PAST 3.14 (Hammer et al., 2001).
Results and Discussion
The Pallas's cat is reliably known in five regions of Russia: Republic of Altai, Republic of Tyva, Republic of Buryatia, Krasnoyarsk Krai, and Trans-Baikal Krai. The Protected Areas networks are more or less well-developed in these regions. It includes Protected Areas of different types and levels. Taken together, 120 Protected Areas were known in these regions at the beginning of 2016 (latest available official data). Among them are 29 Protected Areas of federal significance (state nature reserves, national parks, and federal wildlife sanctuaries) and 91 Protected Areas of regional significance (nature parks and regional wildlife sanctuaries) (Table 1).
According to our estimation, the total area of potential habitats for the Pallas's cat in the five abovementioned regions of Russia is 145,150 km2 (Fig. 2, Table 2). The largest areas of potential habitats for the Pallas's cat are presented in Trans-Baikal Krai and Tyva (Table 2). The smallest ones are in Krasnoyarsk where these are limited by small tract in Sayan highlands, near the border with Tyva.
Table 1. Main characteristics of the Protected Areas in the regions of Russia where the Pallas's cat is known
Regions of Russia Region area, km2 Number of Protected Areas (federal significance / regional significance)* Protected Areas in total, km2 ** Percentage of Protected Areas of total area of a region, %
Republic of Altai 92903 9 (3 / 6) 23116.8 24.88
Republic of Tyva 168604 17 (2 / 15) 19246.65 (26166.03) 11.41 (15.52)
Krasnoyarsk Krai*** 723700 42 (5 / 37) 144240.57 (172938.58) 19.93 (23.90)
Republic of Buryatia 351334 20 (8 / 12) 31099.62 8.85
Trans-Baikal Krai 431892 24 (6 / 18) 25527.37 (30173.34) 5.91 (6.99)
TOTAL: 4186376 120 (29 / 91) 269434.06 (305051.45) 6.44 (7.29)
* Except nature monuments and botanical gardens.
** In brackets the Protected Areas are taken with their buffer zones.
*** All the data on the region are without Taymyr Dolgano-Nenets Autonomous District and Evenkia Autonomous District.
Fig. 2. Potential habitats for the Pallas's cat within its species range in Russia: (1) Altai-Sayan part, (2) Baikal part, (3) Trans-Baikal part.
Table 2. Area of potential habitats for the Pallas's cat and representativeness in the Protected Areas of Russia
Region Area of potential habitats for the Pallas's cat, km2 Percentage of potential habitats for the Pallas's cat located within federal Protected Areas, %* Percentage of potential habitats for the Pallas's cat located within regional Protected Areas, % Percentage of potential habitats for the Pallas's cat located within all Protected Areas, % *
Republic of Altai 16,000 9.2 16.7 25.9
Republic of Tyva 37,800 1.4 (6.7) 2.9 4.3 (9.6)
Krasnoyarsk Krai 350 57.1 0 57.1
Republic of Buryatia 28,900 17.2 3.1 20.3
Trans-Baikal Krai 62,100 4.2 (7.9) 2.0 6.2 (9.9)
TOTAL: 145,150 6.7 (9.5) 4.1 10.8 (13.5)
* data in brackets are the percentage of potential habitats for the Pal as's cat as the Protected Areas are taken with their
buffer zones (if any exist).
Due to the wide use of camera traps, it is now known that the Pallas's cat uses a wider habitat range than previously assumed. Hence, the actual Manul distribution in Russia is somewhat wider than it is shown on our map of potential habitats. This is evidenced by the compactly placed points of the Pallas's cat registration outside the highlighted area. However, the vast majority of this species' meetings are indeed confined to the identified potential habitats (Fig. 3, 4, 5).
As Table 2 shows the percentage of potential habitats for the Pallas's cat located within federal Protected Areas is significantly different depending on the province. The figure ranges from slightly more than 4% (about 10% taking into account areas of buffer zones too) to more than 57%. Naturally, the coverage of manul's habitats by Protected Areas will be higher if the absolute area of Manul's habitats in the region will be less. There is a strong negative correlation between these measures (r = -0.87, p<0.9). A comparison between regions with the highest area of potential habitats located within the Protected Areas (Altai, Krasnoyarsk, and Burya-tia) shows that the regional Protected Areas (especially the Ukok Quiet Zone Nature Park - see Table 3) make the main contribution to the overall protection of potential habitats of the Pallas's cat in the Republic of Altai while federal ones in the other two regions. For example, 100% of all its habitats
located within Protected Areas are situated within the Sayano-Shushensky Reserve in the Krasnoyarsk Krai (Table 3). The situation for each Protected Area or its specific site is presented in Table 3.
Below we characterise the representation and protection level of potential habitats of the Pallas's cat, the species' actual distribution, and the state of its study in each of the five regions where the species is known.
Republic of Altai
In this region the total area of potential habitats for the Pallas's cat has been estimated at 16,000 km2 (Table 2, Fig. 3). The Pallas's cat's distribution is mostly studied in the foothills of mountain ranges bordering the Chuya hollow. Special studies (winter track transects and interview surveys) were conducted on the Sailugem and Kuraisky ridges in 2006 and 2009 (Naidenko et al., 2007; Barashkova et al., 2010; Barashkova & Smelansky, 2011). The Sailugem ridge was recognised as a population hotspot for the Pallas's cat, where the maximum population density of this species has been registered (up to 1.96 individuals per 10 km2). The total abundance of the Manul in Altai has been assessed at 650-680 individuals (Barashkova et al., 2010). Since 2012, some new data on the Pallas's cat have been obtained through the camera traps usage, specifically in the valleys of Chagan-Uzun, Ulandryk,
and Bolshie Shibety, the foothills of Chikhachev's ridge, and the Talduair mountain massif (Barash-kova & Smelansky, 2016). The Altai Anti-Plague Station working in these areas also regularly recorded the Pallas's cat (Denisov et al., 2015). By the use of camera traps to study the Snow Leopard in the highlands, it was found that the Pallas's cat is wider distributed in the region than it has been assumed earlier. So, this cat was repeatedly recorded by camera traps on the Chikhachev's ridge at altitudes of about 3000 m above sea level and in the Argut river basin (Spitsyn, 2017), where this species had not been known previously. The Ukok Plateau and the southern parts of the Shapshalsky and Chulyshmansky ridges remain to be the least studied areas in the region. It is not completely clear how the Pallas's cat is distributed in the Argut river basin and in the Kurai hollow. Apparently, the knowledge about the distribution area of the Pallas's cat in the Altai will change significantly if new information becomes available.
Potential habitats of the Pallas's cat in the region are represented by two federal Protected Areas, Sailugem National Park and Altai State Biosphere
Reserve (Table 3). The species' presence has been recently confirmed in the Argut site within the Sailugem NP (Spitsyn, 2017). The Pallas's cat has been recorded every year in the Sailugem and Ulandryk sites located on the Sailugem ridge. However, the species key habitats have not been included in the national park boundaries. The Pallas's cat's inhabitation in the Altai Reserve has not been confirmed yet. The species can be found there in the vicinity of the Dzhulukol lake, at the junction of Chikhachev's, Shapshalsky, and Chulyshmansky ridges.
The Manul's habitats on Argut and in the south of the Altai Reserve are not accurately delineated yet. Therefore, based on our expert assessment of their areas, we can only assume that about 9% (probably less) of the total area of the Pallas's cat's habitats is located within the federal Protected Areas in the Republic of Altai (Table 2). The habitats suitable for the Pallas's cat occupy about 69% of the Sailugem NP area. However, these are not the optimal stations of this species. In the autumn of 2016, studies of the Pallas's cat using camera traps were started in Sailugem NP and adjoining area. This will allow us to clarify the cat's status in this Protected Area.
Protected Areas: [^<5^1 State Nature Reserve [^■^l Biosphere Polygon II111 I II National Park I | Federal Wildlife Sanctuary Nature Park
Records of Pallas's cat: • Documentally confirmed o Known due to survey and literature data Potential habitats of Pallas's cat
| | Regional Wildlife Sanctuary
Regional Wildlife Sanctuary planned Buffer zones of Reserves
Fig. 3. Distribution of the Pallas's cat in the Altai-Sayan part of its Russian range. Note: «Uvs» - the sites of the Uvs Nuur Basin Biosphere Reserve.
Table 3. Potential habitats for the Pallas's cat and its actual representativeness within Protected Areas network of Russia
Protected Area Region Total area of Protected Area* Percentage from total area of all potential habitats for the Pallas's cat in Russia, % * Percentage from area of the specific Protected Area/site, % * Has the Pallas's cat existence been confirmed in the last 10-15 years?
FEDERAL PROTECTED AREAS
Altaisky BR Altai 8712.1 0.45 7.5 No
Sailugem NP: Argut site Altai 807.3 0.37 66.5 Yes
Sailugem NP: Sailugem and Ulandryk sites Altai 376.5 0.19 74.4 Yes
Ubsunurskaya Kotlovina BR: Mongun-Taiga site Tyva 158.9 (1015.1) 0.11 (0.7) 100 (99.4) Yes
Ubsunurskaya Kotlovina BR: Uvs Nuur site Tyva 44.9 (130.4) 0.02 0.08 66.8 (84.6) Yes
Ubsunurskaya Kotlovina BR: Oruku-Shynaa site Tyva 287.5 (638.4) 0.16 (0.4) 82.8 (91.4) Yes
Ubsunurskaya Kotlovina BR: Aryskannyg site Tyva 150.0 (264.6) 0.01 (0.09) 8.0 (47.8) Yes
Ubsunurskaya Kotlovina BR: Yamaalyg site Tyva 8.0 (54.5) 0.01 (0.04) 100 (100) Yes
Ubsunurskaya Kotlovina BR: Tsugeer Els site Tyva 49.0 (457.86) 0.03 (0.3) 91.8 (85.6) Yes
Ubsunurskaya Kotlovina BR: Khan-Deer site Tyva 1129.2 (2302.5) 0.03 (0.15) 4.4 (9.6) Yes
Sayano-Shushensky BR Krasnoyarsk 3903.7 0.14 5.1 Yes
Tunkinsky NP Buryatia 11836.6 3.25 39.8 Yes
Altacheisky FWS Buryatia 783.7 0.17 31.3 Yes
Daursky BR: Toreisky, Imal-kinsky, Chikhalan, Ereldzhi, and Kuku-Khodan sites Trans-Baikal 426.7 (1564.2) 0.06 (0.62) 21.3 (57.9) Yes
Daursky BR: three sites at Adon-Chelon area Trans-Baikal 10.4 (112.1) 0.01 (0.08) 100 (100) Yes
Daursky BR: Lesostepnoy site Trans-Baikal 3.0 (42.5) 0.002 (0.03) 100 (99.5) Yes
Sokhondinsky BR: buffer zone Trans-Baikal (3180.5) (0.68) (31.0) Yes
Alkhanai NP Trans-Baikal 1382.3 0.16 16.3 No
Dzerens' valley FWS Trans-Baikal 2138.4 1.45 98.2 Yes
Tsasucheisky Bor FWS Trans-Baikal 578.7 0.12 31.1 Yes
Total for federal Protected Areas: 32786.8 (40331.0) 6.74 (9.45) 29.8 (34.0)
REGIONAL PROTECTED AREAS
Ak-Cholushpa: NaP Kalba-kaya site Altai 789.5 0.18 33.9 Yes
Belukha NaP Altai 1312.7 0.08 8.6 No
Ukok Quiet Zone NaP Altai 2542.0 1.26 71.8 No
Shavlinsky RWS Altai 2466.0 0.32 19.0 Yes
Taiga NaP Tyva 425.5 0.13 45.8 Yes
Balgazynsky RWS Tyva 542.8 0.37 100 No
Kaksky RWS Tyva 487.7 0.09 27.7 Yes
Ondumsky RWS Tyva 148.7 0.02 16.8 Yes
Saglinsky RWS Tyva 96.8 0.04 61.0 Yes
Sut-Kholsky RWS Tyva 123.4 No data No data No data
Chagytaisky RWS Tyva 61.1 0.04 90.0 No
Shansky RWS Tyva 230.4 0.01 4.3 No
Eerbeksky RWS Tyva 241.8 0.06 35.6 Yes
Angirsky RWS Buryatia 423.3 0.05 16.1 No
Borgoysky RWS Buryatia 421.8 0.29 100 Yes
Tugnuisky RWS Buryatia 393.6 0.27 99.8 Yes
Aginskaya Steppe RWS Trans-Baikal 457.6 0.32 100 Yes
* Data in brackets are the percentage of potential habitats for the Pallas's сat as the Protected Areas are taken with their buffer zones (if any exist). Abbreviations used in the Table: BR - Biosphere Reserve, NP - National Park, FWS - federal Wildlife Sanctuary, NaP - Nature Park, RWS - regional Wildlife Sanctuary.
Protected Area Region Total area of Protected Area* Percentage from total area of all potential habitats for the Pallas's cat in Russia, % * Percentage from area of the specific Protected Area/site, % * Has the Pallas's cat existence been confirmed in the last 10-15 years?
Argaleisky RWS Trans-Baikal 120.0 0.01 12.1 No
Gornaya Steppe RWS Trans-Baikal 52.7 0.02 49.0 Yes
Semenovsky RWS Trans-Baikal 476.2 0.17 50.7 Yes
Oldondinsky RWS Trans-Baikal 515.0 0.34 94.5 Yes
Total for regional Protected Areas: 12309.1 4.06 47.9
TOTAL (for all Protected Areas): 45095.9 (52640.1) 10.8 (13.5) 34.7 (37.3)
Four regional Protected Areas contain some areas of potential habitats for Pallas's cats. These are Ukok Quiet Zone Nature Park, Ak-Cholushpa Nature Park, Belukha Nature Park, and Shavlinsky Wildlife Sanctuary (Table 3). The last three are located in an area where the limit of the Pallas's cat's range passes. Anyway, the location of its range's limit requires clarification. The Pallas's cat's existence has been reliably confirmed in Shavlinsky Wildlife Sanctuary (Spitsyn, 2017), and it is assumed in Ak-Cholushpa Nature Park (Konunova et al., 2015; interview surveys).
In general, the regional Protected Areas cover about 17% of the total area of potential habitats of the Pallas's cat in the Republic of Altai. Both federal and regional Protected Areas cover almost 26% of the total area of potential habitats of the species in the region (Table 2).
Republic of Tyva In Tyva the total area of potential habitats of the Pallas's cat is approximately 37,800 km2 (Table 2, Fig. 3). Perhaps, these habitats cover a greater area. There is a lack of data on the Pallas's cat's distribution in the western part of the Central Tyva hollow (Sut-Kholsky, Barun-Khemchiksky, and Bai-Taigin-sky districts of the republic) and thus the potential habitats area has been apparently underestimated.
The Federal Protected Areas contain about 7% of the total area of the Manul's potential habitats in the region. The Pallas's cat's habitats are located in one of the two federal Protected Areas in the Republic of Tyva - the Ubsunurskaya Kotlovina Biosphere Reserve. The Manul's habitats are located in seven of nine sites of this biosphere reserve and in their buffer zones, namely: Mongun-Taiga, Uvs Nuur, Oruku-Shynaa, Aryskannyg, Yamaalyg, Tsugeer Els and Khan-Deer sites (Table 2, 3).
There are also some Pallas's cat's habitats located in regional Protected Areas. These are Taiga
Nature Park, Balgazynsky Wildlife Sanctuary, Cha-gytaisky Wildlife Sanctuary, Kaksky Wildlife Sanctuary, Ondumsky Wildlife Sanctuary, Saglinsky Wildlife Sanctuary, Sut-Kholsky Wildlife Sanctuary, Eerbeksky Wildlife Sanctuary and, perhaps, Shan-sky Wildlife Sanctuary. The Balgazynsky and Cha-gytaisky ones are most appropriate for the Pallas's cat's inhabitation because 90-100% of their areas are suitable for them. To sum up, the regional Protected Areas cover about 2.9% from the total area of all potential habitats in the region, and ca. 10% of the total area of potential habitats in Tyva is located within regional and federal Protected Areas (Tables 2, 3).
In 2011, the Sibecocenter with assistance of the Ubsunurskaya Kotlovina Biosphere Reserve and the Directorate for the Protected Areas of the Republic of Tyva carried out special studies on distribution and abundance of the Pallas's cat in the republic including Protected Areas (Barashkova, 2012). In particular, our interview surveys were conducted in the buffer zones of four sites of the biosphere reserve (Mongun-Taiga, Aryskannyg, Yamaalyg, Tsugeer Els) and in the vicinity of them, in four regional wildlife sanctuaries (Kaksky, Ondumskiy, Saglinskiy, Eerbeksky), and in Taiga Nature Park. Snow track surveys were conducted in some of them, namely: Aryskannyg, Yamaalyg, and Tsugeer-Els sites of the BR, and Ondumsky Wildlife Sanctuary, as well as near the Balgazynsky Wildlife Sanctuary. The Pallas's cat's presence has been confirmed in all these Protected Areas.
In 2011, we estimated the total Manul's abundance in the Republic of Tyva at 4300-5800 individuals (Barashkova, 2012). At present, data on the Pallas's cat in the Ubsunurskaya Kotlovina Biosphere Reserve is obtained during monitoring of populations of other mammal species, including the use of camera traps (Kuksin et al., 2016; Goreva, 2017). In other Protected Areas of Tyva the Manul study is not carried out.
Fig. 4. Distribution of the Pallas's cat in the Baikal part of its Russian range. Legend see Fig. 3.
Krasnoyarsk Krai The potential area of the Pallas's cat's inhabitation in the region is about 350 km2 near the boundary with Tyva (northern edge of the Central Tyva hollow) (Table 2, Fig. 3).
The Manul is recorded in both the core area and buffer zone of Sayano-Shushensky Biosphere Reserve (Sokolov, 2012; Istomov et al., 2016). The last authors (Istomov et al., 2016) made a summary of the Pallas's cat's records at the south of Krasnoyarsk Krai including the area of the biosphere reserve. They used Nature Chronicle materials, diary entries, inspectors' reports and data of the camera traps established in the Sayano-Shushensky BR to study the Snow Leopard. The total area of the Pallas's cat's inhabitation in the reserve has been estimated at 40 km2. According to our assessment, the total area potentially suitable for the Manul in the Sayano-Shushensky BR is about 200 km2. If our assessment is correct, this reserve provides the protection for about 57% of the total area of potential habitats of the Pallas's cat in the region.
Republic of Buryatia In Buryatia the total area of potential habitats of the Pallas's cat has been estimated at not less than 28,900 km2. It consists of two isolated areas. The first of them is the Tunka fragment (about 6700 km2) located in the Eastern Sayan and Tunka valley. The second of them is the Southern-Bury-atsky fragment (about 22,200 km2) which includes steppe valleys of the rivers Selenga, Chikoi, Khi-lok, and Dzhida (Table 2, Fig. 4).
More than 17% of the total area of potential habitats of the Pallas's cat in Buryatia is located within federal Protected Areas. These are mainly represented in the Tunkinsky National Park and in the Altacheisky Wildlife Sanctuary as well (Table 2, 3). Approximately 3% of the total area suitable for the Pallas's cat is located within Borgoysky and Tugnuisky Wildlife Sanctuaries, and perhaps Angirsky as well.
Medvedev (2007) provided an overview of the Pallas's cat's records at the Tunka area in 1985-2006. The Manul's presence on the Tunka rocky summits has been confirmed during studies of the Snow Leopard using camera traps. In particular, the Pallas's cat has been repeatedly recorded in the vicinity of Munku-Sardyk Mount located north of the Khovsgol lake at the Russia/Mongolia border (Karnaukhov & Malykh, 2017). This may indicate an existence of a direct connection between the Tunka enclave and the Mongolian population of the species via the Khovsgol region and the Darkhat valley where the Pallas's cat was recorded (Litvinov & Bazardorzh, 1992; Dorzhiev et al., 2009).
Studies of the Manul have not been carried out in the Tunkinsky National Park yet. Since 2015, Baikal Reserve carries out studies to identify the Pallas's cat habitats (using camera traps and snow track surveys) in the Altacheisky Wildlife Sanctuary and its vicinity (Shelest & Khidekel, 2016; Shelest, 2017). In the winter of 2016-2017, the Buryat regional conservation body («BurPriroda») organised winter track surveys of the Pallas's cat in the regional wildlife sanctuaries. It is planned that this monitoring will become permanent in future (Doynikova, personal communication).
Trans-Baikal Krai In Trans-Baikal Krai the total area potentially inhabited by the Pallas's cat is ca. 62,100 km2 (the steppe region commonly known as Dauria). In 1994-1995, 2010, and 2016 the study of this region was conducted by us, including snow track and interview surveys as well as camera traps. About 7.9% from the total area of potential habitats of the Pallas's cat in the region is located within federal Protected Areas and their buffer zones (Table 2). To a greater extent, these Protected Areas cover habitats which are optimal for the species. In certain years the Pallas's cat's population density at some areas here reaches 17.6-19.5 individuals per 10 km2 (Kiri-lyuk & Barashkova, 2011). Currently, all cluster areas of the Daursky Reserve can be used by Pallas's cats and these are actually used by animals, including the bottom of the dried-up lake Barun-Torei. Optimal habitats are represented in Adon-Chelon-sky and Kulusutaisky areas of the reserve. The Pallas's cat is known in all the territory of the Dzerens' Valley Wildlife Sanctuary established in 2011. The Manul visits regularly the Tsasucheisky Bor Wildlife Sanctuary. The Pallas's cat's existence has been confirmed in the buffer zone of the Sokhondinsky Biosphere Reserve (Belov, 2015) and, perhaps, in the Alkhanai National Park. Almost 2% of the total area of potential habitats of the Manul in the TransBaikal Krai is located within five regional wildlife
sanctuaries, namely: «Aginskaya Steppe», «Arga-leisky», «Gornaya Steppe», «Semenovsky», and «Oldondinsky» (Table 3).
In the 1990s, studies of the Manul in the Daursky BR and Dauria as a whole were started. At that time, data of interview surveys and pedestrian investigations were generalised. By the mid-1990s, the species' number in the region was estimated at 2100-3000 individuals. The retrospective analysis of skins purchase data revealed multiple fluctuations in the Pallas's cat abundance with peak values up to 25,000 individuals in the 1940s (Kirilyuk & Puzansky, 2000). According to the recent surveys, the Pallas's cat's number in the region was estimated at 13,000-14,000 individuals in 2010 (Kirilyuk & Barashkova, 2011) and 5,000-6,000 individuals in 2016 (Kirilyuk & Barashkova, 2016). Multiple fluctuations of the Manul's number and distribution depending on the state of prey populations and snow cover have been shown exactly for Dauria. In unfavourable years Pallas's cats can move over dozens of kilometers which resulted in an increasing mortality. This behaviour decreases the role of Protected Areas in the species' conservation (Kirilyuk & Barashkova, 2016). In addition, radiotelemetry studies have revealed vertical seasonal migrations of the Pallas's cats in the rugged terrain. In snowy winters, Pallas's cats move into the relief depressions, where the average snow depth is less.
Fig. 5. Distribution of the Pallas's cat in the Trans-Baikal part of its Russian range. Legend see Fig. 3.
The analysis of radiotelemetry studies conducted in the Daursky Biosphere Reserve has allowed making preliminary conclusions on the structure and dynamics of individual home ranges of Pallas's cats (Barashkova & Kirilyuk, 2011). However, the ground-based radiolocation using the VHF transmitters has not allowed establishing the patterns of Pallas's cat's migrations into new habitat areas. Analogous studies conducted in similar landscapes in Mongolia have shown that the individual home ranges of Pallas's cats are on average significantly larger than those of many other medium size predators (Ross et al., 2012). And therefore, only large Protected Areas can secure protection of viable Pallas's cat populations.
General characteristics of Pallas's cat protection by Protected Areas
In total, eleven federal Protected Areas are located within the area of the Pallas's cat distribution in Russia. These are five biosphere reserves (Al-taisky, Daursky, Sayano-Shushensky, Sokhondin-sky, Ubsunurskaya Kotlovina), three national parks (Sailugemsky, Tunkinsky, Alkhanai), and three federal wildlife sanctuaries (Altacheisky, Dzerens' Valley, Tsasucheisky Bor) (Table 3). Totally, these Protected Areas include about 6.7% from the total area of the potential habitats of the Manul in Russia, or 9.5% if also taking into account the buffer zones of the Protected Areas (Table 2).
In the Russian legislation a buffer zone is not a part of a Protected Area but has a special regime that can be similar to one of the wildlife sanctuaries. It is sufficient to protect the Pallas's cat and its habitats against main threats.
Regional Protected Areas (nature parks and wildlife sanctuaries) cover 4.1% of the total area of potential habitats of the Pallas's cat.
In total, Protected Areas of different categories and levels cover 10.8% of the total area of Manul habitats in Russia, or 13.5% if taking buffer zones into account.
In general, it may seem that the existing Russian Protected Areas are sufficient to provide a good protection of the Pallas's cat. However, the protection level varies significantly in different parts of the national species range. The Pallas's cat's habitats are least covered by the Protected Areas in the west of the range in Russia, in its Altai-Sayan part. It is especially correct for Tyva (Table 2, Fig. 3) where all Protected Areas contain less than 5% of the total area of the habitats suitable for this species (less than 10% if the buffer zones are included). Then, the Manul range in
Tyva consists of two or three fragments corresponding to the large intermontane depressions dominated by steppe landscapes. The fragments are more or less isolated. Most of the Protected Areas which include the Pallas's cat's habitats are located in the Uvs Nuur basin but only few of them are in the Central Tyva hollow (despite its large area) and only single records of the species are known in these Protected Areas (less than 5% of the total number of the Manul records in the province). The habitats of the Pallas's cat in Altai are formally better protected. But only 5% or less of the actually known Manul registration points are located within Protected Areas.
Taking into account the distribution of the Pallas's cat's records it can be seen that there are significant gaps in its coverage by the Protected Areas in both Baikal and Trans-Baikal parts of the species range. Thus most of the Pallas's cat registrations in Buryatia are confined to the interfluves of the river Selenga with the river Chikoi and the river Chikoi with the river Khilok, and to the basin of lake Gusinoe. But there is not any Protected Area in these locations. The habitats of the Pallas's cat in the Trans-Baikal Krai are not covered by the Protected Areas in the Argun ridge and north of Urulyunguy ravine, nor north of Shilka (systems of the river Nercha and the river Quenga) where this species is located on the northern border of its range in the region. Despite of extremeness, the last mentioned location is the only area where Pallas's cats have not been affected by catastrophic decline during the severe winter of 2015-2016 (Kirilyuk & Barashkova, 2016). This fact highlights the potential importance of this location for conservation of the Pallas's cat in the region.
Existing Protected Areas are not sufficient to counteract the high mortality rate of the Pallas's cat in the «bad» years either (when it is affected by extreme weather and/or low feeding supply). The Protected Areas should contain also lowlands and river valleys in the steppe zone, while known surviving areas should be protected as well.
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ЗНАЧЕНИЕ ОСОБО ОХРАНЯЕМЫХ ПРИРОДНЫХ ТЕРРИТОРИЙ ДЛЯ СОХРАНЕНИЯ МАНУЛА (OTOCOLOBUS MANUL: FELIDAE) В РОССИИ
А. Н. Барашкова', В. Е. Кирилюк2, И. Э. Смелянский1
1Сибэкоцентр, Россия Государственный природный биосферный заповедник «Даурский», Россия
e-mail: [email protected]
Otocolobus manul является видом мелких кошачьих и находится в России на северной периферии своего ареала. На основе данных дистанционного зондирования Земли, топокарт и цифровых картографических моделей в пределах российского ареала манула выделены потенциальные местообитания этого вида. По литературным источникам, собственным данным авторов и данным, предоставленным вкладчиками он-лайн базы данных, составлена карта находок (регистраций) манула в России. Рассмотрена представленность потенциальных местообитаний манула и его фактических регистраций в сети ООПТ на территории России. Всего в пределах ареала вида в России площадь потенциальных местообитаний составляет 145150 км2. Во всех пяти регионах, где подтверждено обитание манула (республики Алтай, Тыва и Бурятия, Красноярский и Забайкальский края), регистрация его встреч в основном соответствует размещению потенциальных местообитаний. Основными категориями федеральных и региональных ООПТ охвачено 10.8% (с учетом охранных зон - 13.5%) от площади потенциальных местообитаний манула; детально рассмотрен потенциал каждой из этих ООПТ для сохранения манула. Обсуждается, достаточна ли существующая сеть ООПТ для сохранения вида. Указаны основные территориальные пробелы, снижающие защищенность манула территориальной охраной в отдельных частях российского ареала.
Ключевые слова: Otocolobus manul, защищенность территориальной охраной, манул, он-лайн база данных, особо охраняемые природные территории, потенциальные местообитания, пробелы территориальной охраны, распространение
