Brown bear distribution and status in the South Caucasus

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Brown bear distribution and status in the South Caucasus
                                                Bejan Lortkipanidze1

                     NACRES – Centre for Biodiversity Conservation and Research, Tbilisi, Georgia

           Abstract: I summarize data on the brown bear (Ursus arctos) in the South Caucasus, which
           includes Armenia, Azerbaijan, and Georgia. The most current information is from Georgia,
           where research has been carried out on the species. I determined the present distribution of
           brown bears in the South Caucasus based on extensive fieldwork, literature, and satellite maps.
           Bears have been exterminated from many areas and now live mainly in mountain forests, where
           human access is limited. In some areas of the South Caucasus, the bear range may be considered
           fragmented. The many population estimates have varying credibility among countries and
           periods. I estimate that 2,000–2,500 bears remain in the South Caucasus. The brown bear is
           protected in Georgia and Armenia and is hunted legally in Azerbaijan. Scientists from the South
           Caucasus agree that recreational, illegal hunting is the primary problem in the region.

    Key words: Armenia, Azerbaijan, brown bear, Caucasus, Georgia, status, Ursus arctos

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       Biodiversity in the South Caucasus is rich, and           1999, they periodically collected data on bear
    many species are Caucasian endemics. Among the               population status and distribution from the region
    large carnivores are the wolf (Canis lupus), the brown       for analysis.
    bear (Ursus arctos), the striped hyena (Hyaena
    hyaena satunini), the Asian leopard (Panthera pardus
    saxicolor), and the lynx (Lynx lynx) (Gurielidze             Study area
    1997). Most large mammals in the South Caucasus                The South Caucasus includes 3 countries: Arme-
    have been poorly studied. The brown bear is no               nia, Azerbaijan, and Georgia. The region is located
    exception and data on the species are general at best.       between the Black and Caspian seas to the east and
    Population estimation has been mostly based on               west, respectively, and includes the southern slopes
    often biased and unreliable data (Chestin et al. 1992,       of the Greater Caucasus Mountain Range in the
    Kudaktin and Chestin 1993) from state hunting                north, the Lesser Caucasus Range in middle of the
    regulation organizations. There are few publications         region, and the South Caucasian mountain systems
    on the bear in the South Caucasus and fewer are in           in the south. Our 3 study areas were located in the
    English. Therefore, the status and distribution of           Georgian part of the Greater Caucasus range
    brown bear in the south Caucasus is relatively               (western, central, and eastern parts of the range).
    unknown worldwide (Servheen et al. 1999). Since              One study area included arid and semi-arid parts of
    1996, the nongovernmental organization NACRES                Georgia in the southeastern part of the country and
    – Centre for Biodiversity Conservation and Research          another was located in the Borjomi district, in the
    has been using standardized methods to study the             Lesser Caucasus Range. Due to the location of the
    brown bear in the South Caucasus. They have twice            South Caucasus, the climate is diverse, ranging from
    attempted to estimate bear populations in Georgia            humid subtropical to dry, arid, and semi-arid. There
    and have collected bear signs in northern Azerbaijan         are 3 main types of forest: broadleaf, coniferous, and
    and Armenia. To determine both the attitudes of the          semi-arid open woodlands. The subalpine zone starts
    local populations toward the bear and the reasons            at 1,800–2,500 m, depending on the microclimate.
    for bear hunting, they conducted a socio-economic            Alpine areas (2,500–3,000 m), are covered with
    survey in Georgia in year 2005. Additionally, since          grasslands and thickets of Caucasian rhododendron
                                                                 (Rhododendron caucasicum) (Krever et al. 2001,
                                                                 National Biodiversity Strategy and Action Plan
    1
    bejan.lortkipanidze@nacres.org                               2005).

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Fig. 1. Distribution of brown bear in the South Caucasus study area based on literature, fieldwork in Georgia
and the northern parts of Armenia and Azerbaijan, 1999–2005.

Methods                                                 to the bears’ intensive foraging activity. If sign was
Distribution                                            found in the area, the bear range was assumed to
  The historical distribution of brown bears was        include the entire suitable habitat in the area (e.g.,
defined based on the literature. Because information    forest, badlands, riparian forest). In areas where
on the species’ historical distribution was often       bear sign was not found, I interviewed local
described very generally, I sometimes extrapolated      residents. During interviews, I tried to determine if
the bear range and determined the distribution based    the local people had seen bears or signs of bears
on habitat. To assess present distribution, I carried   during recent years. If bear existence in an area was
out intensive fieldwork throughout almost all of        not confirmed by locals, the area was excluded from
Georgia (except the conflict zone in Abkhazia, in the   the estimated range.
northwest of Georgia) and the northern parts of            In the areas where fieldwork was not conducted
Armenia and Azerbaijan (Fig. 1). During fieldwork,      (the southern parts of Armenia and Azerbaijan), I
the locations of all bear signs (footprints, scrapes,   defined bear range based on the available literature
scats, and visual observations) were recorded by        as well as online satellite maps (Google Earth
global position systems (GPS) and subsequently          Program version 4.3; http://earth.google.com/). Ac-
mapped. Presence–absence surveys were based on          cording to schematic maps and general descriptions
scats and tracks, which were commonly found             of bear range in the literature, I outlined bear
during the fieldwork. Most fieldwork was carried        distribution in these countries. I used online satellite
out in autumn when scats could easily be found due      maps to correct bear distribution there. I assumed

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    that bears still existed in large tracts of forested and   ture. Threats to the bear population were assessed
    badland habitats, and based on freely available            based on literature, field data, and communication
    satellite maps, I included these habitats in the bear      with colleagues in Armenia and Azerbaijan.
    distribution. A final map was sent to E. Askerov              A socioeconomic survey was carried out by ACT
    (WWF Caucasus Programme Office, Azerbaijan,                International at the request of NACRES. The
    personal communication, year 2007), a researcher           research was carried out in 3 districts of Georgia
    working on leopard in Azerbaijan, who evaluated            (Gori, Borjomi, and Tetritskaro). A total of 450
    the Azerbaijan portion of the map and, based on his        interviews (170 in Gori, 140 in Borjomi, and 140 in
    fieldwork, added to the bear range.                        Tetritskaro) were conducted using a comprehensive
                                                               questionnaire on a wide range of topics from
    Population estimation                                      household property to attitudes toward brown bears.
       Initially our estimate was based on measuring bear      To assess current forest utilization and poaching and
    tracks. Pazhetnov (1990) reported that certain             recent changes in the patterns and scale of human
    measurements taken from the front footprint of a           activity, especially with respect to the use of natural
    bear can be used for individual identification. The        resource, 35 indepth interviews were conducted with
    NACRES team measured tracks (total length and              local authorities, hunters, protected area staff, and
    width, as well as pad measurements) along trails and       foresters.
    forest roads and compared these measurement to
    each other. Based on this, the NACRES team
    estimated bear numbers in each of 5 study areas (1         Results
    in a semi-arid ecosystem, 1 in the Lesser Caucasus,        Historical distribution
    and 3 in the Greater Caucasus), covering 1,533 km2.           Few sources provided information on the distri-
    The study areas included protected and unprotected         bution of bears in the past. In the earliest description
    areas. Estimated bear numbers were used to                 of bear distribution in the Caucasus, Radde (1899)
    calculate the mean bear density for each bear              reported that bears were distributed throughout the
    habitat, and these figures were used for the calcula-      region and lived even in the forestless mountain
    tion of overall bear numbers in Georgia. Although          plateau in Armenia (Radde 1899, Dinnik 1914). At
    this method is not accepted in scientific literature as    the end of the 19th century, bear numbers were
    a way for estimating population sizes, I used it here      reported as high on the southern slopes of the
    with caution due to the scarcity of data. In addition,     Greater Caucasus Range, where winters are mild and
    this method was used to assess bear populations in         bear habitats are relatively productive (Radde 1899,
    Georgia during Soviet times (Arabuli 1987), and is         Dinnik 1914, Satunin 1915). Densities were espe-
    therefore useful for comparative purposes.                 cially high in the western parts of the Greater
       In 2004, I estimated the minimum bear numbers           Caucasus Range (Geptner 1932). In some areas, bear
    for the central part of Georgia (the Borjomi District)     range included the Black Sea coast (Chkhikvishvili
    using DNA analyses of fecal samples from the study         1939), and where forest was close to the sea, it was
    area. The NACRES team covered 2,113 km2 and                possible to see bears on the shore from the sea. Based
    collected fecal samples on transects (at least 3 km in     on Radde’s map and other literature (Dinnik 1914,
    length) that were evenly distributed in the study area.    Satunin 1915, Vereshchagin 1959, Markov 1934),
    Based on DNA analysis, minimum bear numbers in             bears did not live in the forestless and steppe habitats
    the study area were identified. Detailed methods for       in the Kura lowlands in the central part of
    DNA analyses are found in Murtskhvaladze and               Azerbaijan, nor were they observed along the shores
    Tarkhnishvili (2006). Because the study area in-           of the Caspian Sea. According to Vereshchagin
    cluded protected and unprotected areas and data            (1959), bears did not live in the Kolkheti lowland, a
    were collected from different types of bear habitats       large wetland area in the western part of Georgia
    (deciduous, mixed, coniferous, sub-alpine meadows),        (near the Black Sea coast around the town Poti), at
    I concluded that the results could be generalized and      the beginning of the 20th century (Fig. 1).
    used for the calculation of a minimum bear
    population size for the entire country.                    Present distribution
       Data on the status and population size of bears in        We mapped the current distribution of brown
    Armenia and Azerbaijan were collected from litera-         bears in the South Caucasus based on fieldwork and

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literature (Fig. 1). The present range is significantly   Table 1. Estimates of brown bear population in the
smaller than the historical distribution. Bears were      South Caucasus, 1970s–present.
exterminated from lower elevation forests and from        Country        1970s          1980s       1990s   2000s
riparian forests along the main rivers of the South
                                                          Armenia          295a     600b (150c)      ––       ––
Caucasus (Gadzhiev and Rakhmatulina 2000). To-            Azerbaijan     1,086a         680b        800e    1,600g
day, despite high rates of forest exploitation, the       Georgia          675a     600b (3,000d)   600f      450h
most important bear habitat is still the mountain         a
                                                            Vereshchagin (1972).
forest. Bears do not exist in the lowlands, where the     b
                                                            Kudaktin and Chestin (1993).
                                                          c
habitat is more degraded by humans. Bears no                Margarian (1987).
                                                          d
                                                            Arabuli (1987).
longer live on forestless mountain plateaus as Radde      e
                                                            NACRES (2003).
(1899) and Dinnik (1914) described.                       f
                                                            Estimate based on tracking method.
                                                          g
   I identified 3 major isolated populations in the         Kuliev et al. (2002).
                                                          h
region, 2 in the southeastern Georgia and north-            Minimal bear population.
eastern Azerbaijan, and the third in Armenia
(Fig. 1). The first two populations are very small;       Chestin 1993). However, according to Margarian
up to 20 individuals total inhabit the semi-arid zone     (1987), there were only 150 bears left, implying that
of the region (Lortkipanidze 2003). Despite having        the numbers had declined. According to the Wildlife
assessed all semi-arid areas in Georgia and northern      Data Bank of the Caucasus (NACRES 2003), the
Azerbaijan, I could not find any bear sign elsewhere      current bear population in Armenia is unknown.
around these small sub-populations. As there is              After the 1970s, bear numbers declined in
intensive land use, human activity, and settlement        Azerbaijan (Kudaktin and Chestin 1993). According
surrounding the smaller populations, I decided to         to Kuliev et al. (2002), bear numbers increased
outline the range of the sub-populations separately       between 1993 and 2000. According to annual counts
from that of the main population in the Greater           carried out by the Ministry of Ecology and Natural
Caucasus.                                                 Resources of Azerbaijan, there were approximately
   Bear distribution in Armenia is mostly based on        1,600 individuals in the country (Kuliev et al. 2002).
the schematic map in the Red Book of Armenian                Georgia’s bear population in the early 1980s was
SSR (Margarian 1987). According to this map, the          estimated at 600 individuals (Kudaktin and Chestin
bear population is fragmented in the northern part        1993) and 3,000 individuals (Arabuli 1987). In 1997,
of the country. I roughly examined bear habitat in        the NACRES team estimated the population at
the area, based on Google Earth satellite maps. I         about 600 individuals (NACRES 2003). However,
observed settlements and agricultural fields along        reliability of the result is doubtful because the bear
possible connection routes. Considering that bears        population estimate was based on the tracking
are persecuted by poachers in Armenia, it likely that,    method.
as in Georgia, they are relatively shy and may avoid         In 2004 and 2005, I estimated minimum bear
crossing areas that are heavily used by humans.           numbers using DNA analysis of fecal samples from a
                                                          study area in the central part of the country. I
Current abundance and population trends                   collected 102 samples during the autumn season.
   Because of discrepancies in the data, it is            DNA analysis of the screened loci in 31 samples
extremely difficult to determine the abundance and        revealed 28 genotypes differing from each other in at
trends of the South Caucasian bear population             least 1 locus. From this I concluded that, from the
(Chestin et al. 1992). For example, in certain years      beginning of September through to the end of
there are 2 very different estimates (Table 1). It also   November, at least 28 bears were present in the
appears that the level of credibility differs greatly     study area (Murtskhvaladze and Tarkhnishvili
among countries and periods, partially due to the         2006). Based on these results, I calculated minimum
different methods utilized. Little information is         bear density within our study area as approximately
available on bears in Armenia. The population             13 bears/1000 km2. Based on topographic and
estimate in the 1970s was 292 bears (Vereshchagin         satellite maps, I defined bear habitat in Georgia
1972), but in the 1980s, according to data from           and calculated a total coverage of approximately
governmental hunting districts, the population was        34,000 km2 with a minimum bear population of 450
reported to have increased to 600 (Kudaktin and           individuals.

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    Table 2. Reasons for hunting bears as reported by          even thought that they could hunt in the protected
    people in central Georgia in 2005 (ACT International       areas if they bought a license (ACT International
    2005).                                                     2005).
    Reason                           Respondents, %               Despite the legal status of bears in Georgia, bear
    Amusement or hobby                    54.3                 killing is common throughout the country. Accord-
    Family tradition                       4.9                 ing to the Georgian Ministry of Environment, no
    Matter of bravery                     10.2                 hunting licenses were issued in the country during
    Source of food for the family          9.1                 1996–2006, and in 2006 bears were included in Red
    Source of family income                4.5
    Crop protection                        1.9                 List. Since that time, no bears have been killed
    Protection of domestic animals         1.9                 legally.
    Get a bear skin                        1.3
    Nobody hunts bears at all              1.0
    Difficult to answer                   11.6
                                                               Discussion
                                                                  Bear distribution in the region has contracted
                                                               significantly since historical times. Bears disappeared
    Legal status and threats                                   primarily from areas where human activity is most
       The brown bear is a protected species in Armenia        intensive, in the lowlands and areas without forest
    and is included in the national Red Data Book              cover. Due to increased hunting and habitat loss, the
    (Margarian 1987). In Azerbaijan, bears are hunted          population had already begun to decline at the end
    and annual quotas are based on population censuses         of the 19th century (Dinnik 1914); according to
    conducted by the government. In Georgia, the bear          Gepner (1932), bears avoided open habitat and lived
    was included on the national Red List in 2006 as           in mountain forests at the beginning of the 20th
    ‘Endangered’; therefore no bear hunting is allowed         century. Bear numbers were already very low on the
    according to Georgian legislation.                         Lesser Caucasus mountains (east Georgia, Armenia,
       Habitat destruction and especially illegal hunting      and southeast Azerbaijan) by the middle of the 20th
    have been suggested as major limiting factors for the      century (Vereshchagin 1958).
    bear populations in all 3 countries of the South              The present range is significantly smaller than the
    Caucasus (NACRES 2003). The reasons for poach-             historical range. I outlined 3 populations in the
    ing have changed over time. In the mid-1990s,              region that are evidently isolated from one another. I
    hunters in Georgia shot many bears for their gall          do not have precise data on isolation level of the
    bladders, which commanded a very high price. At            populations, but due to the intensive land use and
    the end of the 1990s, due to unknown reasons, the          settlements around these sub-populations, I assume
    business became unprofitable and poachers stopped          that individual exchange is limited.
    killing bears for gall bladders. According to a               Many figures on bear numbers in the South
    socioeconomic survey in central Georgia, 54% of            Caucasus are based more on expert opinion than
    respondents thought that people hunted bears for           on actual population estimates. During the Com-
    amusement or as a hobby (ACT International 2005).          munist regime, some officials tried to provide higher
    About 10% of respondents answered that bear                numbers of game animals to keep hunting quotas
    hunting was a food source for their family (Table 2).      high and to demonstrate their success at wildlife
    Killing a bear is considered brave, and many hunters       conservation. It seems that this tendency still prevails
    tried to kill bears to bolster their self-confidence.      in the South Caucasus.
    Selling bear parts, mostly skins, and bear cubs in            Estimates from Azerbaijan suggest a population
    spring, was an additional source of income for some        decline in the 1980s and a recent increase to 1,600
    hunters. Prices of bear skins and cubs varied from         individuals (Kuliev et al. 2002). Some Azeri scientists
    US $100 to $200. This provided a fairly good income        believe that the official number of bears in the
    for rural communities in a country where, outside          country is greatly overestimated and that there are
    the capital, the average monthly salary was about          fewer than 1,200 individuals (E. Askerov, personal
    $100 (ACT International 2005). Therefore, I suspect        communication, 2007). Perhaps government agen-
    that in some cases, bear hunting may have been             cies and commercial entities are inclined to over-
    motivated by income. Up to 50% of local people             estimate the population of bears because hunting
    were unaware of the ban on bear hunting, and some          tourism brings in considerable revenues.

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   Georgia had 2 wildly different estimates for bears     of reliable data makes informed management deci-
in the early 1980s: 600 individuals (Kudaktin and         sions difficult.
Chestin 1993) and 3,000 individuals (Arabuli 1987).
The first estimate is based on reports from state
game departments; the second is based on a tracking       Acknowledgments
method and counts on flushed bears. None of the              I thank our donors for funding bear conservation
authors described their methods in detail, and            and research (World Society for the Protection of
therefore it is difficult to assess the credibility of    Animals, World Wide Fund for Nature (WWF)
either estimate.                                          Caucasus Programme Office, Fauna and Flora
   According to more recent population estimates,         International, MacArthur Foundation, United Na-
however, at least 450 bears were counted in               tion Development Programme, World Bank and
Georgia, although there is no accurate census for         Baku-Tbilisi-Ceyhan (BTC) pipeline/South Cauca-
the country. However, due to intensive poaching           sus gas pipeline (SCP)). I especially thank our donor
and the lack of effective conservation measures, the      and partner in bear conservation in Georgia, Alertis
bear population is likely declining. The fact that, in    — Fund for Bear and Natural Conservation. E.
some places, habitats are well preserved but there        Askerov provided invaluable comments on bear
are no bears present supports this speculation            distribution and information on bear legal status in
(unpublished data).                                       Azerbaijan. My warmest thanks to our consultants
   There is no information on bear numbers in             J. Swenson and D. Huber, who greatly helped us in
Armenia, and so it is difficult to estimate current       many fields of bear research. Thanks also to J.
bear numbers in the South Caucasus as a whole, but        Swenson and N. Kopaliani for essential comments
based on data I speculate that there are 2,000–2,500      on the manuscript. Great thanks to my NACRES
bears throughout the South Caucasus.                      colleagues, who helped carry out fieldwork and
   Bear are completely protected in Georgia and           analyze data and who were there for me as friends,
Armenia, while in Azerbaijan an annual hunting            and to all students and rangers who were involved in
quota is set based on official counts carried out by      data collection and were good companions in the
the Ministry of Ecology and Natural Resources.            field.
However, attempts have been made to include the
bear in the second edition of the Red Book of
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    MURTSKHVALADZE, M., AND D. TARKHNISHVILI. 2006.              Received: 9 June 2009
      Estimation of brown bear abundance and population          Accepted: 28 January 2010
      structure in Borjom-Kharagauli National Park with          Associate Editor: O. Nevin

    Ursus 21(1):000–000 (2010)

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