High Asia, the high-altitude habitat of the snow leopard (Panthera uncia), covers the mountainous regions of Asia’s twelve countries, including Afghanistan, Bhutan, China, India, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Pakistan, Russia, Tajikistan, and Uzbekistan. The transboundary landscape occupied by snow leopards covers an area of about 3.0247 million square kilometers. China possesses about 60% of the global snow leopard landscape, and China shares its border with 10 (the only exception being Uzbekistan) out of the total 12 snow leopard range countries. The snow leopard is an umbrella species from the high-altitude transboundary Asian regions. It is a threatened carnivore of an elusive and secretive nature. Globally, the population of snow leopards is estimated to be 4500–7500 animals in the wild.
1. Introduction
High Asia, the high-altitude habitat of the snow leopard (
Panthera uncia), covers the mountainous regions of Asia’s twelve countries, including Afghanistan, Bhutan, China, India, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Pakistan, Russia, Tajikistan, and Uzbekistan. The snow leopard habitat mainly comprises the Himalayan mountain ranges: Altai, Tien shan, Kunlun, Pamirs, Karakorum, and Hindukush ranges
[1][2][3] in high Asia (
Figure 1). The transboundary landscape occupied by snow leopards covers an area of about 3.0247 million square kilometers
[4]. China possesses about 60% of the global snow leopard landscape, and China shares its border with 10 (the only exception being Uzbekistan) out of the total 12 snow leopard range countries
[1][5].
Figure 1. The transboundary snow leopard landscape in the Asian region covering 12 countries.
The snow leopard is an umbrella species from the high-altitude transboundary Asian regions
[6]. It is a threatened carnivore of an elusive and secretive nature. Globally, the population of snow leopards is estimated to be 4500–7500 animals in the wild
[2]. It is one of the least studied big cats and an important threatened species at the global level. This rare big cat inhabits remote and rugged mountain terrains that are difficult to study
[7][8]. Within the habitat, the snow leopard is adapted to the harsh environment, rough rocky territories, and extremely cold temperatures at higher elevations
[9][10]. Snow leopards have low densities across its habitat
[5][8]. The snow leopard maintains the biological diversity as a top predator
[6] and therefore plays a significant role in the continued supply of ecosystem services in this high mountain region
[11].
Various political, social, economic, and ecological challenges have placed severe stress on snow leopards in the high-altitude Asian regions and have destabilized and fragmented their natural habitats. The multitude of factors include political boundaries and the associated fencing, climate change, transboundary infrastructure development, encroachment of agriculture and human settlements into the habitats of carnivores and their prey species, human–snow leopard conflict, and illegal trade in snow leopard skin and bones
[12][13][14][15][16][17][18]. The political fragmentation of the habitat, however, prevents the adoption of an integrated transboundary landscape approach to handle the issue of integrated habitat conservation and can be seen as the overarching phenomenon that has bearing on all the other factors and their mitigation.
The lack of appropriate environmental management in the face of increasing human use of this landscape for human settlements, transboundary infrastructure development, pasturing, cropping, and tourism is leading to the increased vulnerability of the snow leopard
[13][19]. An impending ecological collapse is also destroying the balance of the prevailing socio-economic and ecological system in the snow leopard habitat
[20].
The challenges to mitigating the vulnerabilities of the transboundary snow leopard landscapes include land use and cover changes
[21], habitat degradation
[22][23], climate change
[24][25], human–snow leopard conflict
[1][26][27], political inefficiency
[16], and border fencing
[17]. The conservation policies are only effective if they incorporate ecological and social mechanisms that can positively impact the socio-ecological systems
[28][29].
Most of the studies conducted on snow leopard habitats are fragmented and are carried out at the micro- and meso-scale. Additionally, no investigation has assessed the vulnerability and pathways towards long-term sustainability on a larger or regional scale. The current entry focuses on the existing knowledge, identify gaps, and propose sustainable mitigation options for the longer term and at a larger landscape level across the aforementioned countries. It will cover the multi-dimensional aspects of vulnerability (Figure 2) and propose solutions in a vast region encompassing all of high Asia’s snow leopard range countries.
Figure 2. The workflow of the current entry, displaying the vulnerability of snow leopard landscapes in the framework of issues, implications, and possible pathways.
2. Transboundary Vulnerability Factors at the Global Snow Leopard Landscape Level
During the last few years, increasing attention has focused on assessing wildlife vulnerability at the level of the socio-ecological system
[30]. A range of factors are responsible for the increasing vulnerability of socio-ecological systems over the larger snow leopard habitat (
Figure 3). The prominent factors enhancing vulnerability in this region include the following.
Figure 3. The socio-ecological system of the snow leopard habitat region in the framework of vulnerability and management strategies.
2.1. Political Factors
2.1.1. Habitat Fragmentation through Border Fencing
The snow leopard landscape spans international borders and includes some of the world’s most disputed borders, including the Line of Control (LOC) between Pakistan and India and between India and China
[16][31]. The closure or fencing of the international borders creates many problems for the snow leopards and their prey species
[16][32], reducing food, water, and mating potential, thus leading to declining populations
[31]. Previous research in the snow leopard landscape revealed that 500 km of fencing on the border of Pakistan and India resulted in a 60% decline in the endangered Kashmir Markhor (
Capra falconeri falconeri)
[33], a crucial wild prey of snow leopards in the boundary region of Pakistan and India
[2][34]. This closure confines the snow leopards to fragmented habitats that sometimes have scare prey populations, causing the snow leopard to resort to hunting domestic livestock
[24][35]. Studies have revealed that border closure results in the division of wildlife populations and blocks the migration routes of wild animals
[36]. The closure also has a terrible impact on the gene flow in snow leopard populations and is a menace to the survival of this emblematic carnivore species in the long run
[37].
2.1.2. Non-Uniform Conservation Policies
The scale of prominent environmental problems or challenges varies from the regional to the global level
[38]. Similarly, the global snow leopard landscape is spread over the twelve countries in the high Asian region
[1]. Thus, the snow leopard landscapes crisscross the boundaries of different regions
[17]. Moreover, the policies of a country are commonly aligned according to the best national interests, while regional or global interests are generally given less priority
[39].
2.2. Social Factors
2.2.1. Human–Snow Leopard Conflict
In the highest mountain ranges of Asia, the snow leopard is an apex predator and an opportunistic generalist carnivore, consuming any available prey and killing domestic livestock in large numbers (
Table 1)
[40][41][42]. Depredation is the single most important cause of the human–snow leopard conflict
[43][44]. Since livestock depredation is a threat to livestock owner livelihoods and hence an economic burden
[45], these negative perceptions lead to human–snow leopard conflict
[46]. The livestock depredation rate depends on the availability of wild prey and the local population of snow leopards, and can be ameliorated by using livestock guarding methods like strong corrals and herding dogs/watchdogs
[47]. The snow leopard is known for livestock killings, with mass killings of livestock being reported if corrals are attacked
[4][27]. This is the single most prominent reason for the retaliatory killings of snow leopards
[45][48][49].
Table 1. The details of livestock type and number predated by snow leopards in different ranges and countries.
No. |
Global Snow Leopard Range |
Country |
Type of Livestock Predated by Snow Leopard |
No. of Livestock Depredated |
Year |
Reference |
1 |
Himalaya Range (HIMLY) |
Bhutan |
Yaks, Horses, Cattle, Sheep, |
32 |
2003–2005 |
[50] |
2 |
China |
Yaks, Cattle–Yak hybrid, Cows, Sheep and Goats |
5877 |
2011–2013 |
[51] |
3 |
India |
Horse, Yaks, Goat, Sheep, others |
112 |
2003 |
[52] |
4 |
Nepal |
Horses, Yak, Yak–Cow hybrid, Cows, Goats, Sheep |
362 |
2014 |
[53] |
5 |
Karakorum and Hindukush (KK/HK) |
Afghanistan |
Yaks, Horses, Cattle, Sheep, Goats |
378 |
2007–2008 |
[54] |
6 |
Pakistan |
Yak, Yak–Cow hybrid, Cows, Goats, Sheep |
223 |
2013 |
[45] |
7 |
Commonwealth of Independent States and Western China (CISWC) |
Kazakhstan |
--None-- |
---- |
----- |
----- |
8 |
Kyrgyzstan |
--None-- |
---- |
----- |
----- |
9 |
Tajikistan |
--None-- |
---- |
----- |
----- |
10 |
Uzbekistan |
Horses, Sheep, and Goats |
82 |
2004 |
[55] |
11 |
Northern Range (NRANG) |
Mongolia |
Horses, Sheep, Goats |
740 |
2010 |
[56] |
12 |
Russia |
Sheep and Goats |
233 |
2000–2003 |
[57] |
2.2.2. Increasing Human Population
Globally, human population density and population growth are challenges for the survival of wild carnivores
[58]. The human population is growing at a fast rate in the snow leopard range countries, for example, China’s population will increase from 1.37 billion in 2016 to 1.42 billion in 2025
[59]. In India, the human population will grow from current 1.35 billion to 1.47 billion in 2031
[60]. Similarly, Pakistan has a population of 216.6 million with high annual growth rate of 2%
[61]. Moreover, an earlier study revealed that the increasing human population density has negative consequences for biodiversity
[62]. The increasing human population and the increasing demands for natural resources are putting pressure on the world’s remaining wild habitats and the associated wild animals
[63].
2.3. Ecological Factors
2.3.1. Climate Change
One of the major challenges for biodiversity and ecosystems worldwide is climate change
[64][65]. Snow leopard landscapes span the world’s highest mountains, which mostly consist of semi-arid and fragile high mountain ecosystems that are particularly vulnerable to climatic changes
[5]. Climate change impacts snow leopard landscapes through increasing temperatures, permafrost degradation, glacier retreat, and loss of surface water
[66]. From 1951 to 2012, the global mean surface temperature increased at 0.12 °C/decade
[67][68]. However, the mean surface temperature at different locations in the snow leopard landscape exhibits a more pronounced increase from 0.16 °C/decade to 0.90 °C/decade (
Table 2). Similarly, a temperature increase of 0.20 °C/decade from 1955 to 2012 was revealed in the Karakorum (Pakistan) snow leopard landscape
[69][70]. Previous studies in the snow leopard landscape reveal that climate change profoundly influences the socio-ecological system, and coping with climate change is one of the most urgent issues
[71][72].
Table 2. Climate warming rates from the selected sources in the snow leopard landscape (listed from north to south).
Location |
Period |
Warming Rate |
Reference |
Global Mean Surface Temperature |
1951–2012 |
0.12 °C/decade |
[67] [68] |
Altai Sayan Ecoregion (Russia) |
1976–2008 |
0.58 °C/decade |
[73] |
Almaty (Kazakhstan) |
1974–2015 |
0.52 °C/decade |
[74] |
Naryn (Kyrgyzstan) |
1930–1989 |
0.32 °C/decade |
[75] |
Oygaing, (Uzbekistan) |
1961–2016 |
0.25 °C/decade |
[76] |
Pamir mountains (Tajikistan) |
1979–2018 |
0.32 °C/decade |
[77] |
Tibetan Plateau (China) |
1955–1996 |
0.16 °C/decade |
[78] |
Dingri, Tibetan Plateau (China) |
1959–2007 |
0.62 °C/decade |
[79] |
Gilgit (Pakistan) |
1986–2010 |
0.39 °C/decade |
[80] |
Hindukush Himalaya region (Parts of Afghanistan, Pakistan, Tajikistan, China, India, Nepal, Bhutan) |
1951–2014 |
0.20 °C/decade |
[81] |
Trans-Himalaya Region (Nepal) |
1977–1994 |
0.90 °C/decade |
[82] |
2.3.2. Land Use and Land Cover Changes
Land use and land cover changes cause increasing vulnerability in the snow leopard landscapes
[65][83][84]. Previous studies revealed that land use and cover changes like human settlements, overgrazing, mining, road building, and hydrological development projects impacted the snow leopard landscapes
[63][85][86]. In Bhutan, the total area covered by forest increased markedly compared to other land cover types in three decades (1990 to 2010), representing a rare example of environmental transformation due to climate change affecting the snow leopard landscape
[87]. A contrasting situation of land degradation, deforestation, and habitat fragmentation occurred in all other range countries (
Table 3) in the snow leopard landscape
[88][89][90].
Table 3. Land use/land cover changes (in the snow leopard landscape) in the range countries.
No. |
Global Snow Leopard Range |
Country/ Location |
Type of Land Use/Landcover Changes |
Period |
Source |
1 |
Himalaya Range (HIMLY) |
Bhutan |
Increase in forest cover |
1990–2010 |
[87] |
2 |
Qinghai-Tibet Plateau, China |
Grassland decreased Unused land increased |
1980–2018 |
[89] |
3 |
Central Himalayas, (India) |
Increasing deforestation, Forest fragmentation |
1976–2006 |
[91] |
4 |
Nepal |
Deforestation Forest degradation |
1976–2001 |
[92] |
5 |
Karakorum and Hindukush (KK/HK) |
Afghanistan |
Deforestation, Forest fragmentation |
1976–2014 |
[93] |
6 |
Pakistan |
Built-up area increased Cropland increased |
2008–2018 2000–2020 |
[94] |
7 |
Commonwealth of Independent States and Western China (CISWC) |
Kazakhstan |
Vegetation cover decreased Built-up area increased |
1995–2015 |
[95] |
8 |
Kyrgyzstan |
Forest decreased Barren land increased Agriculture increased |
1996–2014 |
[96] |
9 |
Pamir mountains (Tajikistan) |
Deforestation Desertification |
-- |
[97] |
10 |
Uzbekistan |
Grassland degradation |
1991–2010 |
[98] |
11 |
Northern Range (NRANG) |
Mongolia |
Grassland degradation |
2000–2006 1998–2006 |
[99] [100] |
12 |
Altai region (Russia) |
Land degradation |
-- |
[101] |
2.4. Economic Factors
2.4.1. Habitat Fragmentation through Trade Corridors
The Belt and Road Initiative (BRI), which was initiated by the Chinese government in 2013 to enhance regional connectivity and so economic development, is the largest infrastructure project in human history
[102]. Recently, several studies along the different economic corridors, including the China–Mongolia–Russia Economic Corridor
[103], the New Eurasia Land Bridge Economic Corridor
[104], and the China–Pakistan Economic Corridor
[105], identified the associated environmental issues. Other studies also concluded that BRI has potential negative impacts on the region’s biodiversity as there are many plans for transportation development to expand into remote regions and ecosystems
[106][107].
2.4.2. Unsustainable Tourism in the Snow Leopard Landscape
Tourism is growing continuously and is primarily unregulated, which results in uncontrolled tourism in this region and creates many environmental problems for the fragile snow leopard landscape
[108]. In addition, trophy hunting is a considerable income-producing recreational activity; yet this remains a controversial tool in conservation science with substantial benefits and risks. After initiation of trophy hunting programs, a conflict of interest arises between the local community and snow leopards. The trophy hunting of wild ungulates generates considerable income for the local community, giving rise to negative perceptions of the snow leopard as a pest animal because the snow leopard depends on the precious trophy ungulates as its prey and consequently destroys the local community’s income generation potential
[40]. Alternately, the wild trophy ungulates (Markhor, Ibex, blue sheep) in northern Pakistan provide enormous income to the local community; however, at the same time, the snow leopard depends on the abundance of ungulates to survive and increase its population
[108]. This conflict and the associated adverse perceptions lead to problems that endanger the existence of snow leopards through the removal of wild prey species or other retaliatory killings
[109].
3. Possible Pathways to Handle Snow Leopard Transboundary Conservation Issues
3.1. Handling Political Boundaries Related Issues
3.1.1. Transboundary Collaboration (Regional Cooperation)
Transnational environmental problems lack regional cooperation, specifically in Central and South Asia’s snow leopard landscape
[110], with similar challenges arising for SES for other transboundary countries across the snow leopard global habitat. Regional cooperation is further limited in the snow leopard landscape due to territorial disputes and other historical conflicts
[111]. The cross-boundary nature of the snow leopard landscape provides an opportunity for transboundary cooperation among the range countries to achieve long-term conservation
[112].
The most critical organization in the snow leopard range countries is the Shanghai Cooperation Organization (SCO)
[113]. The SCO was the first international organization initiated by China and thus has a leading role in establishing functional international relationships
[114]. The SCO comprises all the snow leopard range countries except for Bhutan (
Figure 4). The SCO’s core objective is to provide a better environment for socio-economic development and regional prosperity
[113][115]; the SCO platform was used previously to gradually shape relations among the member states
[116]. Thus, the SCO can play an essential role in collaboration and the sustainable development of the snow leopard landscape. The SCO is driven and inspired by China, clearly depicting China as an emerging global power with a leadership role in regional or international affairs
[114]. Notably, China covers around 60% of the snow leopard landscape worldwide. Thus, it has the opportunity to play a leading role in the sustainable development of this landscape.
Figure 4. The snow leopard range countries are also connected through the Shanghai Cooperation Organization (SCO) except Bhutan.
3.1.2. Creation of Peace Parks
Resolving local transboundary conflicts often culminates in creating “peace parks” by designating a demilitarized peace park that would reinforce conflict resolution. Amid political differences in Afghanistan, India, China, Kyrgyzstan, Pakistan, and Tajikistan, conservationists brought about the conservation of the Pamir Wakhan
[117]. The Karakoram mountains is a disputed region between India and Pakistan, and conservationists in this region suggested establishing Siachen peace park
[118][119]. Similarly, the Khangchendzonga Conservation Area, in the Qomolangma Region, and the Altai Mountains could also serve as peace parks. Researchers have suggested that the further establishment of a peace park in the Himalayas region of Asia would prove to be an effective solution to resolve continued biodiversity loss as a result of war and military activities
[120].
3.1.3. Addressing Non-Uniform Conservation Policies
The snow leopard landscape is often viewed within the totality of natural, human, and spiritual dimensions, and thus has been the focus of integrated interpretations, such as Coupled Socio-Ecological Systems (CSES) approaches
[121]. Recently, the term Socio-Ecological System (SES) has been widely used to understand the human–nature relationship with the idea that an SES is interrelated and indivisible
[122]. A regional landscape is a CSES composed of a dynamic mosaic of land uses and stakeholders
[122][123]. Management of landscapes at the regional level thus requires a wide variety of interacting natural and human processes operating at different spatio-temporal scales
[123]. Human behavior can affect the SES through complex human–environment interactions
[124].
Previous studies disapproved conventional sectoral approaches condemning them as insufficient to address the multi-faceted changes occurring in an evolving socio-economic environment
[125][126][127]. Integrative landscape management may provide solutions and alleviate global challenges by inviting cross-sectoral collaboration to mitigate vulnerability at a significant regional level
[128]. More extensive landscape approaches for inter-organizational goal-oriented networks and well-coordinated synergistic strategies have gained importance in terms of reconciling conservation and development
[129].
Thus, sustainable landscapes incorporate complexity into the management process. Sayer et al.
[129] framed 10 strategies for a landscape approach, including continual learning and adaptive management, a common concern entry point, multiple scales, multi-functionality, multiple stakeholders, negotiated and transparent change logic, clarification of rights and responsibilities, participatory and user-friendly monitoring, resilience, and strengthened stakeholder capacity. As a result, the landscape will be resistant to future disturbances caused by natural or anthropogenic sources.
3.2. Handling Social Issues
3.2.1. Improving Livestock Management Practices
The poor or lack of livestock guarding practices may lead to increasing snow leopard depredation on domestic livestock
[130][131]. Previous studies demonstrated that proper livestock guarding can reduce snow leopard depredation of livestock
[1][26][132]. Strong corrals for livestock can provide better protection for domestic livestock at night. Poor corrals may increase snow leopard depredation and losses of domestic livestock; therefore, better protection will provide better results
[26][131], thereby decreasing human–snow leopard conflict
[131]. Livestock insurance schemes and compensation for livestock depredation can play a role in mitigating human–snow leopard conflict
[133].
3.2.2. Controlling Human Population Growth
One of the vital approaches to managing biodiversity and human wellbeing is through reducing the population growth rate and finally reversing the population growth rate
[134]. The population in most of the snow leopard range countries is growing at a fast rate
[59][135]. Thus, controlling human population growth and managing the consumption pattern could reduce the impact of these factors
[136].
3.2.3. Payment for Ecosystem Services
Recently, Payment for Ecosystem Services (PES) represents a vital conservation policy
[137][138]. PES programs have seen a swift increase in recent decades
[139]. PES are defined as voluntary transactions in which ecosystem services are bought and sold between beneficiaries and service providers
[140]. The global snow leopard landscape provides ecosystem services to more than two billion people
[141][142]. PES is an excellent tool with which to obtain the local communities’ support for environmental conservation
[143].
3.3. Handling Ecological Issues
3.3.1. Climate Change Mitigation (Climate-Smart Technologies and Nature-Based Solutions)
Climate change is an essential factor contributing to vulnerability in this region. Thus, the adoption of innovative solutions, including climate-smart technologies and nature-based solutions, is a promising option. These innovative solutions can play a significant role in mitigating the vulnerability of the Himalayan region
[144][145]. Studies in the snow leopard range countries have revealed that climate-smart technologies are some of the best options available for vulnerability mitigation
[146][147][148]. Prior studies revealed that restoring natural predators in a landscape can mitigate climate changes and predators can serve as insurance against climate change
[149][150].
3.3.2. Integrative Management of Transboundary Conservation Landscape
Transboundary conservation efforts are also strengthened by the Global Snow Leopard and Ecosystem Protection Programme (GSLEP), launched in October 2013 with the adoption of the Bishkek Declaration of the Conservation of Snow Leopards, supporting the 12 range countries to develop national programs
[151]. The group has become increasingly active after the establishment of an online platform that allows for trainings in targeted topics for representatives from snow leopard countries, as well as ongoing efforts to build global capacity for snow leopards. Transboundary collaboration provides an opportunity for the neighboring countries to conserve biodiversity across vast landscapes and reduce conservation costs
[31]. For conservation of transboundary landscapes and biological diversity, collective efforts from the range countries are required to achieve the common goals
[152].
3.4. Handling Economic Issues
3.4.1. Environment-Friendly Trade Corridors in the Snow Leopard Landscape
The transition of the current development in this region to green growth is a good step in achieving the sustainable development goals, which will lead to the protection and conservation of the environment, and promote biodiversity in the region. The BRI has promoted cooperation among the countries as regards different global issues like climate change mitigation
[153][154]. A recent study by Cuiyun and Chazhong
[155] revealed that the BRI’s green development will provide long-term benefits for this region. However, the environmental impacts and recommended mitigations rarely provide sufficient safeguards, even when urgent priorities exist to provide proactive approaches for smart infrastructure planning to minimize impacts on snow leopards and other wildlife during the planning process
[156]. Recommendations have been previously developed to shift these destructive patterns for protected areas and large mammals, to encourage BRI development partners and partner countries to support protected areas, to strategize wildlife corridors, to enact conservation planning methods, and to encourage transboundary and international collaborative efforts
[107]. In 2017, an attempt to make the BRI more environment-friendly was developed, with the aim of promoting the construction of environment-friendly infrastructure, and promoting green trade and financing, and sustainable production and consumption among the partner countries
[157]. CITES protections should scale with the scope of the BRI and tackle the complex issues surrounding the illegal wildlife trade for all protected species. Ongoing development scenarios can calibrate the planning process through science–policy interfaces at the local governmental planning and biodiversity conservation levels, using methodologies such as preemptive measures for smart or green planning.
3.4.2. Sustainable Tourism
Ecotourism is the best option for areas with wildlife availability and easy accessibility for tourists
[158]. Sustainable tourism is economically viable, socially equitable, and ecologically sustainable
[159]. Tourism is a good conservation tool if managed sustainably, especially in areas with apex predators
[160]. A previous study on the snow leopard global range revealed ecotourism to be a good option for conservation in these high Asian landscapes
[161].