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The '''Tibetan antelope''' or '''chiru''' (''Pantholops hodgsonii'')<ref>{{cite EB1911 |wstitle=Chiru |volume=6 |page=247}}</ref> ({{bo|t=གཙོད་|w=gtsod|lang=y}}, pronounced {{IPA-bo|tsǿ|}}; {{zh|c=藏羚羊|p=zànglíngyáng}}<ref>{{cite dictionary |title=【藏羚羊】 zànglíngyáng |dictionary=[[A Dictionary of Current Chinese]] |edition=7 |year=2016 |page=1633}}</ref>) is a medium-sized [[bovid]] native to the northeastern [[Tibetan plateau]]. Most of the population live within the Chinese border, while some scatter across India and Bhutan. Fewer than 150,000&nbsp;mature individuals are left in the wild, but the population is currently thought to be increasing.<ref name=IUCN-2021-11-19/> In 1980s and 1990s, they had become endangered due to massive illegal [[poaching]]. They are hunted for their extremely soft, light and warm underfur which is usually obtained after death. This underfur, known as ''[[shahtoosh]]'' (a Persian word meaning "king of fine wools"), is used to weave luxury shawls. Shahtoosh shawls were traditionally given as wedding gifts in India and it takes the underfur of three to five adult antelopes to make one shawl. Despite strict controls on trade of shahtoosh products and [[CITES]]<ref name=CITES-apdx/> listing, there is still demand for these luxury items. Within India, shawls are worth $1,000–$5,000; internationally the price can reach as high as $20,000.<ref>{{cite web |title=Tibetan antelope |publisher=[[World Wildlife Fund]] |url=http://wwf.panda.org/knowledge_hub/endangered_species/tibetan_antelope/ |access-date=2017-10-10}}</ref> In 1997 the Chinese government established the [[:zh:青海可可西里国家级自然保护区|Hoh Xil National Nature Reserve]] (also known as Kekexili) solely to protect the Tibetan antelope population.
The '''Tibetan antelope''' or '''chiru''' ('''''Pantholops hodgsonii''''')<ref>{{cite EB1911 |wstitle=Chiru |volume=6 |page=247}}</ref> ({{bo|t=གཙོད་|w=gtsod|lang=y}}, pronounced {{IPA-bo|tsǿ|}}; {{zh|c=藏羚羊|p=zànglíngyáng}}<ref>{{cite dictionary |title=【藏羚羊】 zànglíngyáng |dictionary=[[A Dictionary of Current Chinese]] |edition=7 |year=2016 |page=1633}}</ref>) is a medium-sized [[bovid]] native to the northeastern [[Tibetan plateau]]. Most of the population live within the Chinese border, while some scatter across India and Bhutan in the high altitude plains, hill plateau and montane valley. Fewer than 150,000&nbsp;mature individuals are left in the wild, but the population is currently thought to be increasing.<ref name=IUCN-2021-11-19/>
In the 1980s and the 1990s, they had become endangered due to massive illegal [[poaching]]. They are hunted for their extremely soft, light and warm underfur which is usually obtained after death. This underfur, known as ''[[shahtoosh]]'' (a Persian word meaning "king of fine wools"), is used to weave luxury shawls. Shahtoosh shawls were traditionally given as wedding gifts in India and it takes the underfur of three to five adult antelopes to make one shawl. Despite strict controls on trade of shahtoosh products and [[CITES]]<ref name=CITES-apdx/> listing, there is still demand for these luxury items. Within India, shawls are worth $1,000–$5,000; internationally the price can reach as high as $20,000.<ref>{{cite web |title=Tibetan antelope |publisher=[[World Wildlife Fund]] |url=http://wwf.panda.org/knowledge_hub/endangered_species/tibetan_antelope/ |access-date=2017-10-10}}</ref> In 1997 the Chinese government established the [[:zh:青海可可西里国家级自然保护区|Hoh Xil National Nature Reserve]] (also known as Kekexili) solely to protect the Tibetan antelope population.


==Classification==
==Classification==
The Tibetan antelope is the [[monotypic|sole species]] in the [[genus]] '''''Pantholops''''', named after the Greek for "all antelope". It was formerly classified in the then-subfamily [[Antilopinae]] (now thought to be the tribe Antilopini), but morphological and molecular evidence led to it being placed in its own [[Scientific classification|subfamily]], '''Pantholopinae''', closely allied to [[goat-antelope]]s of the then-subfamily Caprinae.<ref name=Gatsey1997>{{cite journal | author1 = Gatsey, J. |display-authors=etal | year = 1997 | title = A cladistic analysis of mitochondrial ribosomal DNA from the Bovidae | journal = Molecular Phylogenetics and Evolution | volume = 7 | issue = 3 | pages = 303–319 | doi = 10.1006/mpev.1997.0402| pmid = 9187090}}</ref> However, this has been disputed,<ref name=Lei2003>{{cite journal | author1 = Lei, R. |display-authors=etal | year = 2003 | title = Phylogenetic relationships of Chinese antelopes (subfamily Antilopinae) based on mitochondrial ribosomal RNA gene sequences | journal = Journal of Zoology | volume = 261 | issue = 3 | pages = 227–237 | doi = 10.1017/S0952836903004163}}</ref> and most authorities now consider the Tibetan antelope to be a true member of the Caprinae, or the tribe Caprini.<ref name=msw3>{{MSW3_Artiodactyla |id = 14200851}}</ref> Phylogenetic evidence indicates that ''Pantholops'' is the most basal member of the Caprinae / Caprini, and belongs to its own tribe or subtribe, '''Pantholopini''' or '''Pantholopina'''.<ref>{{cite journal |last1=Hassanin |first1=Alexandre |last2=Ropiquet |first2=Anne |last3=Couloux |first3=Arnaud |last4=Cruaud |first4=Corinne |date=2009-04-01 |title=Evolution of the mitochondrial genome in mammals living at high altitude: New insights from a study of the tribe Caprini (Bovidae, Antilopinae) |journal=Journal of Molecular Evolution |language=en |volume=68 |issue=4 |pages=293–310 |doi=10.1007/s00239-009-9208-7 |pmid=19294454 |bibcode=2009JMolE..68..293H |s2cid=27622204 |issn=1432-1432}}</ref>
The Tibetan antelope is the [[monotypic|sole species]] in the [[genus]] '''''Pantholops''''', named after the Greek for "all antelope". It was formerly classified in the then-subfamily [[Antilopinae]] (now thought to be the tribe Antilopini), but morphological and molecular evidence led to it being placed in its own [[subfamily]], '''Pantholopinae''', closely allied to [[goat-antelope]]s of the then-subfamily Caprinae.<ref name=Gatsey1997>{{cite journal | author1 = Gatsey, J. |display-authors=etal | year = 1997 | title = A cladistic analysis of mitochondrial ribosomal DNA from the Bovidae | journal = Molecular Phylogenetics and Evolution | volume = 7 | issue = 3 | pages = 303–319 | doi = 10.1006/mpev.1997.0402| pmid = 9187090| doi-access = free }}</ref> However, this has been disputed,<ref name=Lei2003>{{cite journal | author1 = Lei, R. |display-authors=etal | year = 2003 | title = Phylogenetic relationships of Chinese antelopes (subfamily Antilopinae) based on mitochondrial ribosomal RNA gene sequences | journal = Journal of Zoology | volume = 261 | issue = 3 | pages = 227–237 | doi = 10.1017/S0952836903004163}}</ref> and most authorities now consider the Tibetan antelope to be a true member of the Caprinae, or the tribe Caprini.<ref name=msw3>{{MSW3_Artiodactyla |id = 14200851}}</ref> Phylogenetic evidence indicates that ''Pantholops'' is the most basal member of the Caprinae / Caprini, and belongs to its own tribe or subtribe, '''Pantholopini''' or '''Pantholopina'''.<ref>{{cite journal |last1=Hassanin |first1=Alexandre |last2=Ropiquet |first2=Anne |last3=Couloux |first3=Arnaud |last4=Cruaud |first4=Corinne |date=2009-04-01 |title=Evolution of the mitochondrial genome in mammals living at high altitude: New insights from a study of the tribe Caprini (Bovidae, Antilopinae) |journal=Journal of Molecular Evolution |language=en |volume=68 |issue=4 |pages=293–310 |doi=10.1007/s00239-009-9208-7 |pmid=19294454 |bibcode=2009JMolE..68..293H |s2cid=27622204 |issn=1432-1432}}</ref>


Although the genus ''Pantholops'' is currently monotypic, a fossil species, ''P.&nbsp;hundesiensis'', is known from the [[Pleistocene]] of Tibet. It was slightly smaller than the living species, with a narrower skull.<ref name=Ruan2005>{{cite journal | author1 = Ruan, X.D. |display-authors=etal | year = 2005 | title = Evolutionary history and current population relationships of the chiru (''Pantholops hodgsonii'') inferred from mtDNA variation | journal = Journal of Mammalogy | volume = 86 | issue = 5 | pages = 881–886 | doi = 10.1644/1545-1542(2005)86[881:EHACPR]2.0.CO;2 | doi-access = free }}</ref> In addition, the fossil genus ''Qurliqnoria'', from the [[Miocene]] of China, is thought to be an early member of the Pantholopini,<ref name=Gentry1992>{{cite journal | author = Gentry, A.W. | year = 1992 | title = The subfamilies and tribes of the family Bovidae | journal = Mammal Review | volume = 22 | issue = 1 | pages = 1–32 | doi = 10.1111/j.1365-2907.1992.tb00116.x}}</ref> which diverged from the goat-antelopes around this time.<ref name=Leslie2008/>
Although the genus ''Pantholops'' is currently monotypic, a fossil species, ''P.&nbsp;hundesiensis'', is known from the [[Pleistocene]] of Tibet. It was slightly smaller than the living species, with a narrower skull.<ref name=Ruan2005>{{cite journal | author1 = Ruan, X.D. |display-authors=etal | year = 2005 | title = Evolutionary history and current population relationships of the chiru (''Pantholops hodgsonii'') inferred from mtDNA variation | journal = Journal of Mammalogy | volume = 86 | issue = 5 | pages = 881–886 | doi = 10.1644/1545-1542(2005)86[881:EHACPR]2.0.CO;2 | doi-access = free }}</ref> In addition, the fossil genus ''Qurliqnoria'', from the [[Miocene]] of China, is thought to be an early member of the Pantholopini,<ref name=Gentry1992>{{cite journal | author = Gentry, A.W. | year = 1992 | title = The subfamilies and tribes of the family Bovidae | journal = Mammal Review | volume = 22 | issue = 1 | pages = 1–32 | doi = 10.1111/j.1365-2907.1992.tb00116.x}}</ref> which diverged from the goat-antelopes around this time.<ref name=Leslie2008/>
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==Description==
==Description==
[[File:Atilope du Tibet.png|thumb|Tibetan antelope in the [[Changtang Nature Reserve]]|226x226px]]
[[File:Atilope du Tibet.png|thumb|Tibetan antelope in the [[Changtang Nature Reserve]]|226x226px]]
The Tibetan antelope is a medium-sized antelope, with a shoulder height of about {{convert|83|cm|in|frac=2|abbr=on}} in males, and {{convert|74|cm|in|frac=2|abbr=on}} in females. Males are significantly larger than females, weighing about {{convert|39|kg|abbr=on}}, compared with {{convert|26|kg|abbr=on}}, and can also be readily distinguished by the presence of horns and by black stripes on the legs, both of which the females lack. The [[coat (animal)|coat]] is pale fawn to reddish-brown, with a whitish belly, and is particularly thick and woolly. The face is almost black in colour, with prominent nasal swellings that have a paler colour in males. In general, the colouration of males becomes more intense during the annual [[rut (mammalian reproduction)|rut]], with the coat becoming much paler, almost white, contrasting with the darker patterns on the face and legs.<ref name=Leslie2008>{{cite journal |author1=Leslie, D.M. |author2=Schaller, G.B. |name-list-style=amp | year = 2008 | title = ''Pantholops hodgsonii'' (Artiodactyla: Bovidae) | journal = Mammalian Species |volume=817 |number=817 |pages=1–13 | doi = 10.1644/817.1 | doi-access = free }}</ref>
The Tibetan antelope is a medium-sized antelope, with a shoulder height of about {{convert|83|cm|in|frac=2|abbr=on}} in males, and {{convert|74|cm|in|frac=2|abbr=on}} in females. Males are significantly larger than females, weighing about {{convert|39|kg|abbr=on}}, compared with {{convert|26|kg|abbr=on}}, and can also be readily distinguished by the presence of horns and by black stripes on the legs, both of which the females lack. The [[coat (animal)|coat]] is pale fawn to reddish-brown, with a whitish belly, and is particularly thick and woolly. The face is almost black in colour, with prominent nasal swellings that have a paler colour in males. In general, the colouration of males becomes more intense during the annual [[rut (mammalian reproduction)|rut]], with the coat becoming much paler, almost white, contrasting with the darker patterns on the face and legs.<ref name=Leslie2008>{{cite journal |author1=Leslie, D.M. |author2=Schaller, G.B. |name-list-style=amp | year = 2008 | title = ''Pantholops hodgsonii'' (Artiodactyla: Bovidae) | journal = Mammalian Species |number=817 |pages=1–13 | doi = 10.1644/817.1 | doi-access = free }}</ref>


The males have long, curved-back horns that typically measure {{convert|54|to|60|cm|abbr=on}} in length. The horns are slender, with ring-like ridges on their lower portions and smooth, pointed, tips. Although the horns are relatively uniform in length, there is some variation in their exact shape, so the distance between the tips can be quite variable, ranging from {{convert|19|to|46|cm|in|frac=2|abbr=on}}. Unlike [[Caprinae|caprines]], the horns do not grow throughout life. The ears are short and pointed, and the tail is also relatively short, at around {{convert|13|cm|in|frac=2|abbr=on}} in length.<ref name=Leslie2008/>
The males have long, curved-back horns that typically measure {{convert|54|to|60|cm|abbr=on}} in length. The horns are slender, with ring-like ridges on their lower portions and smooth, pointed, tips. Although the horns are relatively uniform in length, there is some variation in their exact shape, so the distance between the tips can be quite variable, ranging from {{convert|19|to|46|cm|in|frac=2|abbr=on}}. Unlike [[Caprinae|caprines]], the horns do not grow throughout life. The ears are short and pointed, and the tail is also relatively short, at around {{convert|13|cm|in|frac=2|abbr=on}} in length.<ref name=Leslie2008/>
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==Distribution and habitat==
==Distribution and habitat==


Endemic to the [[Tibetan Plateau]], the Tibetan antelope inhabits open [[Alpine tundra|alpine]] and cold [[steppe]] environments between {{convert|3250|and|5500|m|abbr=on}} elevation. They prefer flat, open terrain, with sparse vegetation cover. They are found almost entirely in China, where they inhabit [[Tibet]], southern [[Xinjiang]], and western [[Qinghai]]; a few are also found across the border in [[Ladakh]], India. The westernmost population of Tibetan antelope is in [[Depsang Plains]], where they are found at altitudes of up to 5500&nbsp;m. Today, the majority are found within the [[Chang Tang Nature Reserve]] of northern Tibet. The first specimens to be described, in 1826, were from [[Nepal]]; the species has apparently since been [[Local extinction|extirpated]] from the region.<ref name=IUCN-2021-11-19/> No subspecies are recognised. Zhuonai Lake (卓乃湖) in [[Hoh Xil]] is known as a calving ground for the Tibetan antelope.<ref>{{Cite web|url=http://www.qhnews.com/kkxl/system/2011/07/13/010410737.shtml|title=405页面}}</ref><ref>{{cite journal |first1=Khursheed |last1=Ahmad |first2=Ved P. |last2=Kumar |first3=Bheem Dutt |last3=Joshi |first4=Mohamed |last4=Raza |first5=Parag |last5=Nigam |first6=Anzara Anjum |last6=Khan |first7=Surendra P. |last7=Goyal |year=2016 |title=Genetic diversity of the Tibetan antelope (''Pantholops hodgsonii'') population of Ladakh, India, its relationship with other populations and conservation implications |journal=BMC Research Notes |volume=9 |issue=477 |page=477 |doi= 10.1186/s13104-016-2271-4 |pmid=27769305 |pmc=5073904 |quote=It is clear that there has been reported migration and exchange of individuals towards the western part in its range, but habitat suitability analysis is needed for a better understanding of the reasons for lack of major exchange of individuals between the westernmost (Depsang Plains close to DBO in northern Ladakh and Aksi Chin near Kunlun range) and other populations.}}</ref><ref name="Biodiversity">{{cite book |last1=Ahmad |first1=Khursheed |last2=Bhat |first2=Aijaz Ahmad |last3=Ahmad |first3=Riyaz |last4=Suhail |first4=Intesar |year=2020 |chapter=Wild mammalian diversity in Jammu and Kashmir State |title=Biodiversity of the Himalaya: Jammu and Kashmir State |series=Topics in Biodiversity and Conservation |volume=18 |page=945 |isbn=978-981-32-9173-7 |doi=10.1007/978-981-32-9174-4_36 |s2cid=213922370 |quote=Chiru is a keystone species and world's hardiest mountain ungulates that can survive in temperatures as low as −40&nbsp;°C. Most of their distribution range falls above 4,000&nbsp;m, and in Depsang Plains in northern Ladakh, they can be found as high as 5500&nbsp;m.}}</ref>
Endemic to the [[Tibetan Plateau]], the Tibetan antelope inhabits open [[Alpine tundra|alpine]] and cold [[steppe]] environments between {{convert|3250|and|5500|m|abbr=on}} elevation. They prefer flat, open terrain, with sparse vegetation cover. They are found almost entirely in China, where they inhabit [[Tibet]], southern [[Xinjiang]], and western [[Qinghai]]; a few are also found across the border in [[Ladakh]], India. The westernmost population of Tibetan antelope is in [[Depsang Plains]], where they are found at altitudes of up to 5500&nbsp;m. Today, the majority are found within the [[Chang Tang Nature Reserve]] of northern Tibet. The first specimens to be described, in 1826, were from [[Nepal]]; the species has apparently since been [[Local extinction|extirpated]] from the region.<ref name=IUCN-2021-11-19/> No subspecies are recognised. Zhuonai Lake (卓乃湖) in [[Hoh Xil]] is known as a calving ground for the Tibetan antelope.<ref>{{Cite web|url=http://www.qhnews.com/kkxl/system/2011/07/13/010410737.shtml|title=405页面}}</ref><ref>{{cite journal |first1=Khursheed |last1=Ahmad |first2=Ved P. |last2=Kumar |first3=Bheem Dutt |last3=Joshi |first4=Mohamed |last4=Raza |first5=Parag |last5=Nigam |first6=Anzara Anjum |last6=Khan |first7=Surendra P. |last7=Goyal |year=2016 |title=Genetic diversity of the Tibetan antelope (''Pantholops hodgsonii'') population of Ladakh, India, its relationship with other populations and conservation implications |journal=BMC Research Notes |volume=9 |issue=477 |page=477 |doi= 10.1186/s13104-016-2271-4 |pmid=27769305 |pmc=5073904 |quote=It is clear that there has been reported migration and exchange of individuals towards the western part in its range, but habitat suitability analysis is needed for a better understanding of the reasons for lack of major exchange of individuals between the westernmost (Depsang Plains close to DBO in northern Ladakh and Aksi Chin near Kunlun range) and other populations. |doi-access=free }}</ref><ref name="Biodiversity">{{cite book |last1=Ahmad |first1=Khursheed |last2=Bhat |first2=Aijaz Ahmad |last3=Ahmad |first3=Riyaz |last4=Suhail |first4=Intesar |chapter=Wild Mammalian Diversity in Jammu and Kashmir State |year=2020 |title=Biodiversity of the Himalaya: Jammu and Kashmir State |series=Topics in Biodiversity and Conservation |volume=18 |page=945 |isbn=978-981-32-9173-7 |doi=10.1007/978-981-32-9174-4_36 |s2cid=213922370 |quote=Chiru is a keystone species and world's hardiest mountain ungulates that can survive in temperatures as low as −40&nbsp;°C. Most of their distribution range falls above 4,000&nbsp;m, and in Depsang Plains in northern Ladakh, they can be found as high as 5500&nbsp;m.}}</ref>


A special adaptation of the species to its high altitude habitat is the retention of the [[fetal hemoglobin|fetal version of hemoglobin]] even in adult animals, which provides higher oxygen affinity. The Tibetan antelope is the only species of mammal where this adaptation has been documented.<ref>{{cite journal |last1=Storz |first1=Jay F. |first2=Anthony V. |last2=Signore |date=2020-03-22 |title=Biochemical paedomorphosis and genetic assimilation in the hypoxia adaptation of Tibetan antelope |journal=bioRxiv |url=https://www.biorxiv.org/content/biorxiv/early/2020/03/22/2020.03.20.000075.full.pdf}}</ref><ref>{{cite news |title=Tibetan antelopes developed a unique way to survive high in the mountains |date=June 2020 |website=phys.org |url=https://phys.org/news/2020-06-tibetan-antelopes-unique-survive-high.html}}</ref>
A special adaptation of the species to its high altitude habitat is the retention of the [[fetal hemoglobin|fetal version of hemoglobin]] even in adult animals, which provides higher oxygen affinity. The Tibetan antelope is the only species of mammal where this adaptation has been documented.<ref>{{cite journal |last1=Storz |first1=Jay F. |first2=Anthony V. |last2=Signore |date=2020-03-22 |title=Biochemical paedomorphosis and genetic assimilation in the hypoxia adaptation of Tibetan antelope |journal=bioRxiv |url=https://www.biorxiv.org/content/biorxiv/early/2020/03/22/2020.03.20.000075.full.pdf}}</ref><ref>{{cite news |title=Tibetan antelopes developed a unique way to survive high in the mountains. Then, |date=June 2020 |website=phys.org |url=https://phys.org/news/2020-06-tibetan-antelopes-unique-survive-high.html}}</ref>


==Behaviour==
==Behaviour==
[[File:Head detail, Chiru of Tibet (Pantholops hodgsonii) from the book entitled, The Great and Small Game of India, Burma, and Tibet (1900) (cropped).jpg|100px|thumb|Head details]]
[[File:Head detail, Chiru of Tibet (Pantholops hodgsonii) from the book entitled, The Great and Small Game of India, Burma, and Tibet (1900) (cropped).jpg|100px|thumb|Head details]]
Tibetan antelope feed on [[forb]]s, [[Poaceae|grasses]], and [[sedge]]s, often digging through the snow to obtain food in winter. Their natural predators include [[wolf|wolves]], [[Eurasian lynx|lynx]], and [[snow leopard]]s, and [[red fox]]es are known to prey on young calves.<ref name=Leslie2008/><ref name=Lian2007>{{cite journal | author1 = Lian, X. |display-authors=etal | year = 2007 | title = Group size effects on foraging and vigilance in migratory Tibetan antelope | journal = Behavioural Processes | volume = 76 | issue = 3 | pages = 192–197 | doi = 10.1016/j.beproc.2007.05.001 | pmid = 17582704 | s2cid = 46425868}}</ref>
The Tibetan antelope feeds on [[forb]]s, [[Poaceae|grasses]], and [[sedge]]s, often digging through the snow to obtain food in winter. Their natural predators include [[wolf|wolves]], [[Eurasian lynx|lynx]], [[snow leopard]]s, and [[red fox]]es are known to prey on young calves.<ref name=Leslie2008/><ref name=Lian2007>{{cite journal | author1 = Lian, X. |display-authors=etal | year = 2007 | title = Group size effects on foraging and vigilance in migratory Tibetan antelope | journal = Behavioural Processes | volume = 76 | issue = 3 | pages = 192–197 | doi = 10.1016/j.beproc.2007.05.001 | pmid = 17582704 | s2cid = 46425868}}</ref>


Tibetan antelope are gregarious, sometimes congregating in herds hundreds strong when moving between summer and winter pastures, although they are more usually found in much smaller groups, with no more than 20&nbsp;individuals.<ref name=Leslie2008/> The females migrate up to {{convert|300|km|mi|sigfig=1|abbr=on}} yearly to calving grounds in the summer, where they usually give birth to a single calf, and rejoin the males at the wintering grounds in late autumn.<ref>{{cite book |author=Schaller, G.B. |year=1998 |title=Wildlife of the Tibetan Steppe |publisher=The University of Chicago Press |pages=[https://archive.org/details/wildlifeoftibeta0000scha/page/373 373] |url=https://archive.org/details/wildlifeoftibeta0000scha |url-access=registration}}</ref>
Tibetan antelope are gregarious, sometimes congregating in herds hundreds strong when moving between summer and winter pastures, although they are more usually found in much smaller groups, with no more than 20&nbsp;individuals.<ref name=Leslie2008/> The females migrate up to {{convert|300|km|mi|sigfig=1|abbr=on}} yearly to calving grounds in the summer, where they usually give birth to a single calf, and rejoin the males at the wintering grounds in late autumn.<ref>{{cite book |author=Schaller, G.B. |year=1998 |title=Wildlife of the Tibetan Steppe |publisher=The University of Chicago Press |pages=[https://archive.org/details/wildlifeoftibeta0000scha/page/373 373] |url=https://archive.org/details/wildlifeoftibeta0000scha |url-access=registration}}</ref>
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In July 2006, the Chinese government inaugurated a new railway that bisects the chiru's feeding grounds on its way to [[Lhasa]], the [[Tibet]]an capital. In an effort to avoid harm to the animal, 33 special animal migration passages have been built beneath the railway. However, the railway will bring many more people, including potential poachers, closer to Tibetan antelope's breeding grounds and habitat.{{citation needed|date=January 2013}}
In July 2006, the Chinese government inaugurated a new railway that bisects the chiru's feeding grounds on its way to [[Lhasa]], the [[Tibet]]an capital. In an effort to avoid harm to the animal, 33 special animal migration passages have been built beneath the railway. However, the railway will bring many more people, including potential poachers, closer to Tibetan antelope's breeding grounds and habitat.{{citation needed|date=January 2013}}


On 22&nbsp;February 2008, ''[[The Wall Street Journal]]'' reported China's state-run news agency, [[Xinhua]], issued a public apology for publishing a [[Photo manipulation|doctored photograph]] of Tibetan antelope running near the [[Qinghai-Tibet Railway]]. Liu Weiqing, a 41-year-old photographer, was identified as the author of the work. He had reportedly camped on the Tibetan plateau since March&nbsp;2007, as part of a series by the ''Daqing Evening News'', to raise awareness regarding the Tibetan bovid. He was also under contract to provide images to Xinhua. He has since resigned from ''Daqing Evening News''.<ref>{{cite news | last=Spencer | first=Jane | date=2008-02-22 | title=China eats crow over faked photo of rare antelope | newspaper=[[The Wall Street Journal]] | url=https://www.wsj.com/articles/SB120363429707884255?mod=yhoofront | access-date = 2008-02-26}}</ref> Researchers of the [[Chinese Academy of Sciences]] claimed on 17&nbsp;April 2008, that despite the impression given by the faked photo, the antelope are getting used to the railway, in a letter to ''[[Nature (journal)|Nature]]''.<ref>{{cite journal | last1 = Yang | first1 = Qisen | first2 = Lin | last2 = Xia | date = 2008-04-17 | title =Tibetan wildlife is getting used to the railway | journal = [[Nature (journal)|Nature]] | volume = 452 | issue = 7189 | pages = 810–811 | doi = 10.1038/452810c | doi-access = free | pmid = 18421324 | bibcode = 2008Natur.452..810Y | s2cid = 205037280 }}</ref>
On 22&nbsp;February 2008, ''[[The Wall Street Journal]]'' reported China's state-run news agency, [[Xinhua]], issued a public apology for publishing a [[Photo manipulation|doctored photograph]] of Tibetan antelope running near the [[Qinghai-Tibet Railway]]. Liu Weiqing, a 41-year-old photographer, was identified as the author of the work. He had reportedly camped on the Tibetan plateau since March&nbsp;2007, as part of a series by the ''Daqing Evening News'', to raise awareness regarding the Tibetan bovid. He was also under contract to provide images to Xinhua. He has since resigned from ''Daqing Evening News''.<ref>{{cite news | last=Spencer | first=Jane | date=2008-02-22 | title=China eats crow over faked photo of rare antelope | newspaper=[[The Wall Street Journal]] | url=https://www.wsj.com/articles/SB120363429707884255?mod=yhoofront | access-date = 2008-02-26}}</ref> Researchers of the [[Chinese Academy of Sciences]] wrote in a 17&nbsp;April 2008 letter to ''[[Nature (journal)|Nature]]'', that despite the impression given by the faked photo, the antelopes are getting used to the railway.<ref>{{cite journal | last1 = Yang | first1 = Qisen | first2 = Lin | last2 = Xia | date = 2008-04-17 | title =Tibetan wildlife is getting used to the railway | journal = [[Nature (journal)|Nature]] | volume = 452 | issue = 7189 | pages = 810–811 | doi = 10.1038/452810c | doi-access = free | pmid = 18421324 | bibcode = 2008Natur.452..810Y | s2cid = 205037280 }}</ref>


In the Karakoram regions of [[Azad Jammu and Kashmir|Pakistan-administered Kashmir]] it is listed as an endangered species.{{citation needed|date=June 2014}}
In the Karakoram regions of [[Azad Jammu and Kashmir|Pakistan-administered Kashmir]] it is listed as an endangered species.{{citation needed|date=June 2014}}

==In popular culture==
In 2015, ''[[The King of Tibetan Antelope]]'' tells the story of a small Tibetan antelope pursues its dream to return home and become the king of Tibetan antelope. The movie has a mixture into a coming-of-age films including ''[[Bambi]]'' (1942), ''[[The Lion King]]'' (1994), ''[[Spirit: Stallion of the Cimarron]]'' (2002) and ''[[Happy Feet]]'' (2006).


==See also==
==See also==
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==References==
==References==
{{reflist|22em}}
{{reflist|25em}}


==Further reading==
==Further reading==
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* {{cite web |title=Save she chiru |publisher=[[Wildlife Trust of India]] |url=http://www.wildlifetrustofindia.org/}}
* {{cite web |title=Save she chiru |publisher=[[Wildlife Trust of India]] |url=http://www.wildlifetrustofindia.org/}}
* {{cite web |title=Tibetan antelope (chiru) |series=Wildlife trade |publisher=[[World Wildlife Fund]] |url=http://www.worldwildlife.org/what/globalmarkets/wildlifetrade/buyersbeware-antelope.html}}
* {{cite web |title=Tibetan antelope (chiru) |series=Wildlife trade |publisher=[[World Wildlife Fund]] |url=http://www.worldwildlife.org/what/globalmarkets/wildlifetrade/buyersbeware-antelope.html}}
* {{cite web |title={{grey|[no title cited]}} |series=United States [[Federal Register]] |date=6 October 2003 |id=03-25207 |url=http://www.fws.gov/policy/library/03-25207.pdf}}{{full citation needed|date=April 2022|reason=no page, no title}}
* {{cite web |title={{grey|[no title cited]}} |series=United States [[Federal Register]] |date=6 October 2003 |id=03-25207 |url=http://www.fws.gov/policy/library/03-25207.pdf |access-date=28 December 2005 |archive-date=17 December 2008 |archive-url=https://web.archive.org/web/20081217140833/http://www.fws.gov/policy/library/03-25207.pdf |url-status=dead }}{{full citation needed|date=April 2022|reason=no page, no title}}
* {{cite news |title=Antelope leaps to safety through rail underpass |date=10 July 2006 |newspaper=[[The Times]] |place=London, UK |url=http://www.timesonline.co.uk/article/0,,25689-2263039,00.html}}
* {{cite news |title=Antelope leaps to safety through rail underpass |date=10 July 2006 |newspaper=[[The Times]] |place=London, UK |url=http://www.timesonline.co.uk/article/0,,25689-2263039,00.html|archive-url=https://web.archive.org/web/20080905043016/http://www.timesonline.co.uk/article/0,,25689-2263039,00.html|url-status=dead|archive-date=September 5, 2008}}


{{Artiodactyla|R.2}}
{{Artiodactyla|R.2}}
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[[Category:Mammals described in 1826|Tibetan antelope]]
[[Category:Mammals described in 1826|Tibetan antelope]]
[[Category:Taxa named by Clarke Abel|Tibetan antelope]]
[[Category:Taxa named by Clarke Abel|Tibetan antelope]]
[[Category:Wool animals]]

Latest revision as of 21:26, 12 November 2024

Not to be confused with the Tibetan gazelle or goa, a true antelope.
"Chiru" redirects here. For other uses, see Chiru (disambiguation).

Tibetan antelope
CITES Appendix I (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Caprinae
Tribe: Pantholopini
Genus: Pantholops
Hodgson, 1834[3]
Species:
P. hodgsonii
Binomial name
Pantholops hodgsonii
(Abel, 1826)

The Tibetan antelope or chiru (Pantholops hodgsonii)[4] (Tibetan: གཙོད་, Wylie: gtsod, pronounced [tsǿ]; Chinese: 藏羚羊; pinyin: zànglíngyáng[5]) is a medium-sized bovid native to the northeastern Tibetan plateau. Most of the population live within the Chinese border, while some scatter across India and Bhutan in the high altitude plains, hill plateau and montane valley. Fewer than 150,000 mature individuals are left in the wild, but the population is currently thought to be increasing.[1]

In the 1980s and the 1990s, they had become endangered due to massive illegal poaching. They are hunted for their extremely soft, light and warm underfur which is usually obtained after death. This underfur, known as shahtoosh (a Persian word meaning "king of fine wools"), is used to weave luxury shawls. Shahtoosh shawls were traditionally given as wedding gifts in India and it takes the underfur of three to five adult antelopes to make one shawl. Despite strict controls on trade of shahtoosh products and CITES[2] listing, there is still demand for these luxury items. Within India, shawls are worth $1,000–$5,000; internationally the price can reach as high as $20,000.[6] In 1997 the Chinese government established the Hoh Xil National Nature Reserve (also known as Kekexili) solely to protect the Tibetan antelope population.

Classification

[edit]

The Tibetan antelope is the sole species in the genus Pantholops, named after the Greek for "all antelope". It was formerly classified in the then-subfamily Antilopinae (now thought to be the tribe Antilopini), but morphological and molecular evidence led to it being placed in its own subfamily, Pantholopinae, closely allied to goat-antelopes of the then-subfamily Caprinae.[7] However, this has been disputed,[8] and most authorities now consider the Tibetan antelope to be a true member of the Caprinae, or the tribe Caprini.[9] Phylogenetic evidence indicates that Pantholops is the most basal member of the Caprinae / Caprini, and belongs to its own tribe or subtribe, Pantholopini or Pantholopina.[10]

Although the genus Pantholops is currently monotypic, a fossil species, P. hundesiensis, is known from the Pleistocene of Tibet. It was slightly smaller than the living species, with a narrower skull.[11] In addition, the fossil genus Qurliqnoria, from the Miocene of China, is thought to be an early member of the Pantholopini,[12] which diverged from the goat-antelopes around this time.[13]

Description

[edit]
Tibetan antelope in the Changtang Nature Reserve

The Tibetan antelope is a medium-sized antelope, with a shoulder height of about 83 cm (32+1⁄2 in) in males, and 74 cm (29 in) in females. Males are significantly larger than females, weighing about 39 kg (86 lb), compared with 26 kg (57 lb), and can also be readily distinguished by the presence of horns and by black stripes on the legs, both of which the females lack. The coat is pale fawn to reddish-brown, with a whitish belly, and is particularly thick and woolly. The face is almost black in colour, with prominent nasal swellings that have a paler colour in males. In general, the colouration of males becomes more intense during the annual rut, with the coat becoming much paler, almost white, contrasting with the darker patterns on the face and legs.[13]

The males have long, curved-back horns that typically measure 54 to 60 cm (21 to 24 in) in length. The horns are slender, with ring-like ridges on their lower portions and smooth, pointed, tips. Although the horns are relatively uniform in length, there is some variation in their exact shape, so the distance between the tips can be quite variable, ranging from 19 to 46 cm (7+1⁄2 to 18 in). Unlike caprines, the horns do not grow throughout life. The ears are short and pointed, and the tail is also relatively short, at around 13 cm (5 in) in length.[13]

The fur of Tibetan antelopes is distinctive, and consists of long guard hairs and a silky undercoat of shorter fibres. The individual guard hairs are thicker than those of other goats, with unusually thin walls, and have a unique pattern of cuticular scales, said to resemble the shape of a benzene ring.[14]

Distribution and habitat

[edit]

Endemic to the Tibetan Plateau, the Tibetan antelope inhabits open alpine and cold steppe environments between 3,250 and 5,500 m (10,660 and 18,040 ft) elevation. They prefer flat, open terrain, with sparse vegetation cover. They are found almost entirely in China, where they inhabit Tibet, southern Xinjiang, and western Qinghai; a few are also found across the border in Ladakh, India. The westernmost population of Tibetan antelope is in Depsang Plains, where they are found at altitudes of up to 5500 m. Today, the majority are found within the Chang Tang Nature Reserve of northern Tibet. The first specimens to be described, in 1826, were from Nepal; the species has apparently since been extirpated from the region.[1] No subspecies are recognised. Zhuonai Lake (卓乃湖) in Hoh Xil is known as a calving ground for the Tibetan antelope.[15][16][17]

A special adaptation of the species to its high altitude habitat is the retention of the fetal version of hemoglobin even in adult animals, which provides higher oxygen affinity. The Tibetan antelope is the only species of mammal where this adaptation has been documented.[18][19]

Behaviour

[edit]
Head details

The Tibetan antelope feeds on forbs, grasses, and sedges, often digging through the snow to obtain food in winter. Their natural predators include wolves, lynx, snow leopards, and red foxes are known to prey on young calves.[13][20]

Tibetan antelope are gregarious, sometimes congregating in herds hundreds strong when moving between summer and winter pastures, although they are more usually found in much smaller groups, with no more than 20 individuals.[13] The females migrate up to 300 km (200 mi) yearly to calving grounds in the summer, where they usually give birth to a single calf, and rejoin the males at the wintering grounds in late autumn.[21]

Reproduction

[edit]

The rutting season lasts from November to December. Males form harems of up to 12 females, although one to four is more common, and drive off other males primarily by making displays or chasing them with head down, rather than sparring directly with their horns. Courtship and mating are both brief, without most of the behaviour typically seen in other antelope species, although males do commonly skim the thighs of females with a kick of their fore legs.[13]

Mothers give birth to a single calf in June or July, after a gestation period of about six months. The calves are precocial, being able to stand within 15 minutes of birth. They are fully grown within 15 months, and reach sexual maturity during their second or third year. Although females may remain with their mothers until they themselves give birth, males leave within 12 months, by which time their horns are beginning to grow. Males determine status by their relative horn length, with the maximum length being achieved at around three and a half years of age.[13]

Although the lifespan of Tibetan antelopes is not known with certainty, since so few have been kept in captivity,[22] it is probably around 10 years.[13]

Conservation

[edit]
The antelope are killed for their wool, which is woven into the luxury fabric shahtoosh, threatening the species' survival.

Since 1979, Tibetan antelope has had legal protection under the Convention on International Trade in Endangered Species (CITES). Killing, harming or trading in the animal is illegal worldwide, as more than 160 countries are CITES signatories.[23] It also used to be listed as Endangered by the World Conservation Union and the United States Fish and Wildlife Service due to commercial poaching for their underwool, competition with local domesticated herds, and the development of their rangeland for gold mining. Tibetan antelopes' underfur (down hair), being extremely soft, fine and warm, is known as shahtoosh and has traditionally been woven by craftsmen and women in Kashmir into shawls in high demand in India as girls' dowry and in Europe as a symbol of wealth and status. Such demands resulted in massive illegal poaching in the second half of the 20th century. In consequence, the population of this species has suffered a severe decline from nearly a million (estimated) at the turn of the 20th century to less than 75,000 in the 1990s.[1] Although formerly affected by poaching, it is now among the best safeguarded wildlife in the Tibetan Plateau, thanks to effective conservation efforts by the Chinese government since late 1990s.[24] A 2009 assessment estimated an increased population of 150,000.[1] The struggle to stop illegal antelope hunting was portrayed in the 2004 film, Kekexili: Mountain Patrol. In September 2016, Tibetan antelop has been reclassified on the International Union for Conservation of Nature (IUCN) Red list from Endangered to Near Threatened due to the increased population.[1]

To develop testing for shahtoosh, a Hong Kong chemist and a senior forensic specialist looked at the material though a microscope. Using this method, they discovered shahtoosh contains coarser guard hairs unique to the species. By doing this, the duo had found a convenient way to prove this was poached material.[citation needed]

In July 2006, the Chinese government inaugurated a new railway that bisects the chiru's feeding grounds on its way to Lhasa, the Tibetan capital. In an effort to avoid harm to the animal, 33 special animal migration passages have been built beneath the railway. However, the railway will bring many more people, including potential poachers, closer to Tibetan antelope's breeding grounds and habitat.[citation needed]

On 22 February 2008, The Wall Street Journal reported China's state-run news agency, Xinhua, issued a public apology for publishing a doctored photograph of Tibetan antelope running near the Qinghai-Tibet Railway. Liu Weiqing, a 41-year-old photographer, was identified as the author of the work. He had reportedly camped on the Tibetan plateau since March 2007, as part of a series by the Daqing Evening News, to raise awareness regarding the Tibetan bovid. He was also under contract to provide images to Xinhua. He has since resigned from Daqing Evening News.[25] Researchers of the Chinese Academy of Sciences wrote in a 17 April 2008 letter to Nature, that despite the impression given by the faked photo, the antelopes are getting used to the railway.[26]

In the Karakoram regions of Pakistan-administered Kashmir it is listed as an endangered species.[citation needed]

See also

[edit]

References

[edit]
  1. ^ a b c d e f "Pantholops hodgsonii". IUCN Red List of Threatened Species. 2016. IUCN SSC Antelope Specialist Group: e.T15967A50192544. 2016. doi:10.2305/IUCN.UK.2016-2.RLTS.T15967A50192544.en. Retrieved 19 November 2021.
  2. ^ a b "Appendices". cites.org. CITES. Retrieved 2022-01-14.
  3. ^ Hodgson, B. (22 July 1834). "[July 22, 1834 // William Yarrell, Esq., in the chair]". Proceedings of the Zoological Society of London (meeting minutes). 2: 81. A letter was read, addressed to Mr. Vigours by B.H. Hodgson, ...
  4. ^ Chisholm, Hugh, ed. (1911). "Chiru" . Encyclopædia Britannica. Vol. 6 (11th ed.). Cambridge University Press. p. 247.
  5. ^ "【藏羚羊】 zànglíngyáng". A Dictionary of Current Chinese (7 ed.). 2016. p. 1633.
  6. ^ "Tibetan antelope". World Wildlife Fund. Retrieved 2017-10-10.
  7. ^ Gatsey, J.; et al. (1997). "A cladistic analysis of mitochondrial ribosomal DNA from the Bovidae". Molecular Phylogenetics and Evolution. 7 (3): 303–319. doi:10.1006/mpev.1997.0402. PMID 9187090.
  8. ^ Lei, R.; et al. (2003). "Phylogenetic relationships of Chinese antelopes (subfamily Antilopinae) based on mitochondrial ribosomal RNA gene sequences". Journal of Zoology. 261 (3): 227–237. doi:10.1017/S0952836903004163.
  9. ^ Grubb, P. (2005). "Order Artiodactyla". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 637–722. ISBN 978-0-8018-8221-0. OCLC 62265494.
  10. ^ Hassanin, Alexandre; Ropiquet, Anne; Couloux, Arnaud; Cruaud, Corinne (2009-04-01). "Evolution of the mitochondrial genome in mammals living at high altitude: New insights from a study of the tribe Caprini (Bovidae, Antilopinae)". Journal of Molecular Evolution. 68 (4): 293–310. Bibcode:2009JMolE..68..293H. doi:10.1007/s00239-009-9208-7. ISSN 1432-1432. PMID 19294454. S2CID 27622204.
  11. ^ Ruan, X.D.; et al. (2005). "Evolutionary history and current population relationships of the chiru (Pantholops hodgsonii) inferred from mtDNA variation". Journal of Mammalogy. 86 (5): 881–886. doi:10.1644/1545-1542(2005)86[881:EHACPR]2.0.CO;2.
  12. ^ Gentry, A.W. (1992). "The subfamilies and tribes of the family Bovidae". Mammal Review. 22 (1): 1–32. doi:10.1111/j.1365-2907.1992.tb00116.x.
  13. ^ a b c d e f g h Leslie, D.M. & Schaller, G.B. (2008). "Pantholops hodgsonii (Artiodactyla: Bovidae)". Mammalian Species (817): 1–13. doi:10.1644/817.1.
  14. ^ Rollins, C.K. & Hall, D.M. (1999). "Using light and scanning electron microscopic methods to differentiate ibex goat and Tibetan antelope fibers". Textile Research Journal. 69 (11): 856–860. doi:10.1177/004051759906901109. S2CID 137669403.
  15. ^ "405页面".
  16. ^ Ahmad, Khursheed; Kumar, Ved P.; Joshi, Bheem Dutt; Raza, Mohamed; Nigam, Parag; Khan, Anzara Anjum; Goyal, Surendra P. (2016). "Genetic diversity of the Tibetan antelope (Pantholops hodgsonii) population of Ladakh, India, its relationship with other populations and conservation implications". BMC Research Notes. 9 (477): 477. doi:10.1186/s13104-016-2271-4. PMC 5073904. PMID 27769305. It is clear that there has been reported migration and exchange of individuals towards the western part in its range, but habitat suitability analysis is needed for a better understanding of the reasons for lack of major exchange of individuals between the westernmost (Depsang Plains close to DBO in northern Ladakh and Aksi Chin near Kunlun range) and other populations.
  17. ^ Ahmad, Khursheed; Bhat, Aijaz Ahmad; Ahmad, Riyaz; Suhail, Intesar (2020). "Wild Mammalian Diversity in Jammu and Kashmir State". Biodiversity of the Himalaya: Jammu and Kashmir State. Topics in Biodiversity and Conservation. Vol. 18. p. 945. doi:10.1007/978-981-32-9174-4_36. ISBN 978-981-32-9173-7. S2CID 213922370. Chiru is a keystone species and world's hardiest mountain ungulates that can survive in temperatures as low as −40 °C. Most of their distribution range falls above 4,000 m, and in Depsang Plains in northern Ladakh, they can be found as high as 5500 m.
  18. ^ Storz, Jay F.; Signore, Anthony V. (2020-03-22). "Biochemical paedomorphosis and genetic assimilation in the hypoxia adaptation of Tibetan antelope" (PDF). bioRxiv.
  19. ^ "Tibetan antelopes developed a unique way to survive high in the mountains. Then,". phys.org. June 2020.
  20. ^ Lian, X.; et al. (2007). "Group size effects on foraging and vigilance in migratory Tibetan antelope". Behavioural Processes. 76 (3): 192–197. doi:10.1016/j.beproc.2007.05.001. PMID 17582704. S2CID 46425868.
  21. ^ Schaller, G.B. (1998). Wildlife of the Tibetan Steppe. The University of Chicago Press. pp. 373.
  22. ^ Su, J.; et al. (2003). "Ailing: The first domesticated Tibetan antelope". Acta Theriologica Sinica. 23 (1): 83–84. Archived from the original on 2013-01-16.
  23. ^ "Kashmir rethinks shahtoosh ban". The Washington Times. Washington, DC. 2004-06-18.
  24. ^ Buho, Hoshino; Jiang, Z.; Liu, C.; Yoshida, T.; Mahamut, Halik; Kaneko, M.; et al. (2011). "Preliminary study on migration pattern of the Tibetan antelope (Pantholops hodgsonii) based on satellite tracking". Advances in Space Research. 48 (1). Elsevier BV: 43–48. Bibcode:2011AdSpR..48...43B. doi:10.1016/j.asr.2011.02.015. ISSN 0273-1177.
  25. ^ Spencer, Jane (2008-02-22). "China eats crow over faked photo of rare antelope". The Wall Street Journal. Retrieved 2008-02-26.
  26. ^ Yang, Qisen; Xia, Lin (2008-04-17). "Tibetan wildlife is getting used to the railway". Nature. 452 (7189): 810–811. Bibcode:2008Natur.452..810Y. doi:10.1038/452810c. PMID 18421324. S2CID 205037280.

Further reading

[edit]
  • Ginsberg, J.R.; Schaller, G.B.; Lowe, J. (1999). "Petition to list the Tibetan antelope (Pantholops hodgsonii) as an endangered species pursuant to the U.S. Endangered Species Act of 1973" (Document). Wildlife Conservation Society and Tibetan Plateau Project.
  • Ridgeway, Rick; Anker, Conrad; Rowell, Galen (2005). The Big Open: On foot across Tibet's Chang Tang. University of Michigan / National Geographic. ISBN 9780792238997.
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