Red panda

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Red panda
Temporal range: Pleistocene–Present
↓
CITES Appendix I (CITES)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Ailuridae
Genus: Ailurus
F. Cuvier, 1825
Species:
A. fulgens
Binomial name
Ailurus fulgens
F. Cuvier, 1825
Subspecies

A. f. fulgens F. Cuvier, 1825
A. f. styani Thomas, 1902[2]

Map showing the range of the red panda, a narrow band along the Himalayas and southwest China, in red
Range of the red panda

The red panda (Ailurus fulgens), also known as the lesser panda, is a small mammal native to the eastern Himalayas and southwestern China. It has dense reddish-brown fur with a black belly and legs, white-lined ears, a mostly white muzzle and a ringed tail. Its head-to-body length is 51–63.5 cm (20.1–25.0 in) with a 28–48.5 cm (11.0–19.1 in) tail, and it weighs between 3.2 and 15 kg (7.1 and 33.1 lb). It is well adapted to climbing due to its flexible joints and curved semi-retractile claws.

The red panda was formally described in 1825. The two currently recognised subspecies, the Himalayan and the Chinese red panda, genetically diverged about 250,000 years ago. The red panda's place on the evolutionary tree has been debated, but modern genetic evidence places it in close affinity with raccoons, weasels, and skunks. It is not closely related to the giant panda, which is a bear, though both possess elongated wrist bones or "false thumbs" used for grasping bamboo. The evolutionary lineage of the red panda (Ailuridae) stretches back around 25 to 18 million years ago, as indicated by extinct fossil relatives found in Eurasia and North America.

The red panda inhabits

arboreal. It feeds mainly on bamboo shoots and leaves, but also on fruits and blossoms. Red pandas mate in early spring, with the females giving birth to litters of up to four cubs in summer. It is threatened by poaching as well as destruction and fragmentation of habitat due to deforestation. The species has been listed as Endangered on the IUCN Red List since 2015. It is protected in all range countries
.

Community-based conservation programmes have been initiated in Nepal, Bhutan and northeastern India; in China, it benefits from nature conservation projects. Regional captive breeding programmes for the red panda have been established in zoos around the world. It is featured in animated movies, video games, comic books and as the namesake of companies and music bands.

Etymology

The origin of the name panda is uncertain, but one of the most likely theories is that it derived from the Nepali word "ponya".[3] The word पञ्जा pajā or पौँजा pañjā means "ball of the foot" and "claws".[4] The Nepali words "nigalya ponya" has been translated as "bamboo footed" and is thought to be the red panda's Nepali name; in English, it was simply called panda, and was the only animal known under this name for more than 40 years; it became known as the red panda or lesser panda to distinguish it from the giant panda, which was formally described and named in 1869.[3]

The genus name Ailurus is adopted from the

specific epithet fulgens is Latin for 'shining, bright'.[3][6]

Taxonomy

Watercolour of a red panda on branch with three separate depictions of the paws at the top
Watercolour painting of a red panda commissioned by Thomas Hardwicke c. 1820[7]

The red panda was

scientific name Ailurus fulgens. Cuvier's description was based on zoological specimens, including skin, paws, jawbones and teeth "from the mountains north of India", as well as an account by Alfred Duvaucel.[8][9] The red panda was described earlier by Thomas Hardwicke in 1821, but his paper was only published in 1827.[3][10] In 1902, Oldfield Thomas described a skull of a male red panda specimen under the name Ailurus fulgens styani in honour of Frederick William Styan who had collected this specimen in Sichuan.[2]

Subspecies and species

The modern red panda is the only recognised species in the genus Ailurus. It is traditionally divided into two subspecies: the Himalayan red panda (A. f. fulgens) and the Chinese red panda (A. f. styani). The Himalayan subspecies has a straighter profile, a lighter coloured forehead and ochre-tipped hairs on the lower back and rump. The Chinese subspecies has a more curved forehead and sloping snout, a darker coat with a less white face and more contrast between the tail rings.[11]

In 2020, results of a genetic analysis of red panda samples showed that the red panda populations in the Himalayas and China were separated about 250,000 years ago. The researchers suggested that the two subspecies should be treated as distinct species. Red pandas in southeastern Tibet and northern Myanmar were found to be part of styani, while those of southern Tibet were of fulgens in the strict sense.

glaciation events on the southern Tibetan Plateau in the Pleistocene.[14]

Phylogeny

The placement of the red panda on the

evolutionary tree has been debated. In the early 20th century, various scientists placed it in the family Procyonidae with raccoons and their allies. At the time, most prominent biologists also considered the red panda to be related to the giant panda, which would eventually be found to be a bear. A 1982 study examined the similarities and differences in the skull between the red panda and the giant panda, other bears and procyonids, and placed the species in its own family Ailuridae. The author of the study considered the red panda to be more closely related to bears.[11] A 1995 mitochondrial DNA analysis revealed that the red panda has close affinities with procyonids.[15] Further genetic studies in 2005, 2018 and 2021 have placed the red panda within the clade Musteloidea, which also includes Procyonidae, Mustelidae (weasels and relatives) and Mephitidae (skunks and relatives).[16][17][18]

Phylogenetic relationship of the red panda based on analysis of
Six genes from 76 Carnivora species[16]
Caniformia
46 genes from 75 musteloid species[17]
Musteloidea
Mitogenomes from 220 mammal species[18]
Caniformia

Fossil record

Drawing of a skull (above) and head (below) of an extinct animal
Reconstructed skull and head of Simocyon, a large carnivorous early relative of the modern red panda

The family Ailuridae appears to have evolved in Europe in either the

Early Pliocene. Both have similar teeth to Amphictis and thus had a similar diet.[19] The puma-sized Simocyon was likely a tree-climber and shared a "false thumb"—an extended wrist bone—with the modern species, suggesting the appendage was an adaptation to arboreal locomotion and not to feed on bamboo.[19][20]

Later and more

sister taxon to the lineage of the modern red panda. In contrast to the herbivorous modern species, these ancient pandas were likely omnivores, with highly cusped molars and sharp premolars.[21][22][24]

The earliest fossil record of the modern genus Ailurus dates no earlier than the Pleistocene and appears to have been limited to Asia. The modern red panda's lineage became adapted for a specialised bamboo diet, having molar-like premolars and more elevated cusps.[21] The false thumb would secondarily gain a function in feeding.[19][20]

Genomics

Analysis of 53 red panda samples from Sichuan and Yunnan showed a high level of

bitterness, though the specific genes are different.[27]

Description

Red panda skull
Red panda skull
Red panda face
Red panda face

The red panda's

whiskers around the mouth, lower jaw and chin. The hair on the soles of the paws allows the animal to walk in snow.[28]

The red panda has a relatively small head, though proportionally larger than in similarly sized raccoons, with a reduced snout and triangular ears, and nearly evenly lengthed limbs.[28][29] It has a head-body length of 51–63.5 cm (20.1–25.0 in) with a 28–48.5 cm (11.0–19.1 in) tail. The Himalayan red panda is recorded to weigh 3.2–9.4 kg (7.1–20.7 lb), while the Chinese red panda weighs 4–15 kg (8.8–33.1 lb) for females and 4.2–13.4 kg (9.3–29.5 lb) for males.[28] It has five curved digits on each foot, each with curved semi-retractile claws that aid in climbing.[29] The pelvis and hindlimbs have flexible joints, adaptations for an arboreal quadrupedal lifestyle.[31] While not prehensile, the tail helps the animal balance while climbing.[29]

The forepaws possess a "false thumb", which is an extension of a wrist bone, the radial

sesamoid found in many carnivorans. This thumb allows the animal to grip onto bamboo stalks and both the digits and wrist bones are highly flexible. The red panda shares this feature with the giant panda, which has a larger sesamoid that is more compressed at the sides. In addition, the red panda's sesamoid has a more sunken tip while the giant panda's curves in the middle. These features give the giant panda more developed dexterity.[32]

The red panda's skull is wide, and its lower jaw is robust.

caecum.[28]

Both sexes have paired anal glands that emit a secretion consisting of long-chain fatty acids, cholesterol, squalene and 2-Piperidinone; the latter is the most odoriferous compound and is perceived by humans as having an ammoniacal or pepper-like odour.[33]

Distribution and habitat

Red panda in a tree
Red panda in Neora Valley National Park

The red panda inhabits Nepal, the states of Sikkim, West Bengal and Arunachal Pradesh in India, Bhutan, southern Tibet, northern Myanmar and China's Sichuan and Yunnan provinces.[1] The global potential habitat of the red panda has been estimated to comprise 47,100 km2 (18,200 sq mi) at most; this habitat is located in the temperate climate zone of the Himalayas with a mean annual temperature range of 18–24 °C (64–75 °F).[34] Throughout this range, it has been recorded at elevations of 2,000–4,300 m (6,600–14,100 ft).[35][36][37][38][39]

Habitat of the red panda
Country Estimated size[34]
Nepal 22,400 km2 (8,600 sq mi)
China 13,100 km2 (5,100 sq mi)
India 5,700 km2 (2,200 sq mi)
Myanmar 5,000 km2 (1,900 sq mi)
Bhutan 900 km2 (350 sq mi)
Total 47,100 km2 (18,200 sq mi)

In Nepal, it lives in six protected area complexes within the

Qionglai-Minshan conifer forests in the Hengduan, Qionglai, Xiaoxiang, Daxiangling and Liangshan Mountains in Sichuan.[38] In the adjacent Yunnan province, it was recorded only in the northwestern montane part.[48][49]

The red panda prefers

niche separation lessens competition between the two bamboo-eating species.[50][54]

Behaviour and ecology

A red panda lies sleeping on a high branch of a tree, with tail stretched out behind and legs dangling on each side of the branch
Red panda sleeping on a tree

The red panda is difficult to observe in the wild,

sleeping in between periods of activity at night. It typically rests or sleeps in trees or other elevated spaces, stretched out prone on a branch with legs dangling when it is hot, and curled up with its hindlimb over the face when it is cold. It is adapted for climbing and descends to the ground head-first with the hindfeet holding on to the middle of the tree trunk. It moves quickly on the ground by trotting or bounding.[29]

Social spacing

Adult pandas are generally

faeces and secretions from the anal and surrounding glands. Scent-marking is usually done on the ground, with males marking more often and for longer periods.[29] In China's Wolong National Nature Reserve, the home range of a radio-collared female was 0.94 km2 (0.36 sq mi), while that of a male was 1.11 km2 (0.43 sq mi).[59] A one-year-long monitoring study of ten red pandas in eastern Nepal showed that the four males had median home ranges of 1.73 km2 (0.67 sq mi) and the six females of 0.94 km2 (0.36 sq mi) within a forest cover of at least 19.2 ha (47 acres). The females travelled 419–841 m (1,375–2,759 ft) per day and the males 660–1,473 m (2,165–4,833 ft). In the mating season from January to March, adults travelled a mean of 795 m (2,608 ft) and subadults a mean of 861 m (2,825 ft).[41] They all had larger home ranges in areas with low forest cover and reduced their activity in areas that were disturbed by people, livestock and dogs.[60]

Diet and feeding

The red panda is largely herbivorous and feeds primarily on bamboo, mainly the genera

Sinarundinaria, Thamnocalamus and Chimonobambusa.[61] It also feeds on fruits, blossoms, acorns, eggs, birds and small mammals. Bamboo leaves may be the most abundant food item year-round and the only food they can access during winter.[62] In Wolong National Nature Reserve, leaves of the bamboo species Bashania fangiana were found in nearly 94 per cent of analysed droppings, and its shoots were found in 59 per cent of the droppings found in June.[59]

The diet of red pandas monitored at three sites in

stone oak species Lithocarpus pachyphyllus, Campbell's magnolia, the chinquapin species Castanopsis tribuloides, Himalayan birch, Litsea sericea and the holly species Ilex fragilis.[66] In Nepal's Rara National Park, Thamnocalamus was found in all the droppings sampled, both before and after the monsoon.[67] Its summer diet in Dhorpatan Hunting Reserve also includes some lichens and barberries.[43] In Bhutan's Jigme Dorji National Park, red panda faeces found in the fruiting season contained seeds of Himalayan ivy.[53]

Red panda holding onto a plant and eating
Red panda feeding

The red panda grabs food with one of its front paws and usually eats sitting down or standing. When foraging for bamboo, it grabs the plant by the stem and pulls it down towards its jaws. It bites the leaves with the side of the

metabolic rate is comparable to other mammals of its size, despite its poor diet.[69] The red panda digests almost a third of dry matter, which is more efficient than the giant panda digesting 17 per cent.[68] Microbes in the gut may aid in its processing of bamboo; the microbiota community in the red panda is less diverse than in other mammals.[70]

Communication

Sounds of red panda twittering

At least seven different vocalisations have been recorded from the red panda, comprising growls, barks, squeals, hoots, bleats, grunts and twitters. Growling, barking, grunting and squealing are produced during fights and aggressive chasing. Hooting is made in response to being approached by another individual. Bleating is associated with scent-marking and sniffing. Males may bleat during mating, while females twitter.[71] During both play fighting and aggressive fighting, individuals curve their backs and tails while slowly moving their heads up and down. They then turn their heads while jaw-clapping, move their heads laterally and lift a forepaw to strike. They stand on their hind legs, raise the forelimbs above the head and then pounce. Two red pandas may "stare" at each other from a distance.[29]

Reproduction and parenting

Red panda mother with cub
Red panda tending its cub

Red pandas are

Oestrous lasts a day, and females can enter oestrous multiple times a season, but it is not known how long the intervals between each cycle last.[72]

As the reproductive season begins, males and females interact more, and will rest, move, and feed near each other. An oestrous female will spend more time marking and males will inspect her anogenital region. Receptive females make tail-flicks and position themselves in a lordosis pose, with the front lowered to the ground and the spine curved. Copulation involves the male mounting the female from behind and on top, though face-to-face matings as well as belly-to-back matings while lying on the sides also occur. The male will grab the female by the sides with his front paws instead of biting her neck. Intromission is 2–25 minutes long, and the couple groom each other between each bout.[72]

Gestation lasts about 131 days.[73] Prior to giving birth, the female selects a denning site, such as a tree, log or stump hollow or rock crevice, and builds a nest using material from nearby, such as twigs, sticks, branches, bark bits, leaves, grass and moss.[57] Litters typically consist of one to four cubs that are born fully furred but blind. They are entirely dependent on their mother for the first three to four months until they first leave the nest. They nurse for their first five months.[73] The bond between mother and offspring lasts until the next mating season. Cubs are fully grown at around 12 months and at around 18 months they reach sexual maturity.[29] Two radio-collared cubs in eastern Nepal separated from their mothers at the age of 7–8 months and left their birth areas three weeks later. They reached new home ranges within 26–42 days and became residents after exploring them for 42–44 days.[41]

Mortality and diseases

The red panda's lifespan in captivity reaches 14 years.

intermediate hosts.[81] A captive red panda in the Chengdu Research Base of Giant Panda Breeding died of unknown reasons; an autopsy showed that its kidneys, liver and lungs were damaged by a bacterial infection caused by Escherichia coli.[82]

Threats

The red panda is primarily threatened by the destruction and fragmentation of its habitat, the causes of which include increasing human population, deforestation, the unlawful taking of non-wood forest material and disturbances by herders and livestock.[1] Trampling by livestock inhibits bamboo growth,[74] and clearcutting decreases the ability of some bamboo species to regenerate.[83] The cut lumber stock in Sichuan alone reached 2,661,000 m3 (94,000,000 cu ft) in 1958–1960, and around 3,597.9 km2 (1,389.2 sq mi) of red panda habitat were logged between the mid-1970s and late 1990s.[48] Throughout Nepal, the red panda habitat outside protected areas is negatively affected by solid waste, livestock trails and herding stations, and people collecting firewood and medicinal plants.[43][84] Threats identified in Nepal's Lamjung District include grazing by livestock during seasonal transhumance, human-made forest fires and the collection of bamboo as cattle fodder in winter.[85] Vehicular traffic is a significant barrier to red panda movement between habitat patches.[60]

Poaching is also a major threat.[1] In Nepal, 121 red panda skins were confiscated between 2008 and 2018. Traps meant for other wildlife have been recorded killing red pandas.[86] In Myanmar, the red panda is threatened by hunting using guns and traps; since roads to the border with China were built starting in the early 2000s, red panda skins and live animals have been traded and smuggled across the border.[39] In southwestern China, the red panda is hunted for its fur, especially for the highly valued bushy tails, from which hats are produced. The red panda population in China has been reported to have decreased by 40 per cent over the last 50 years, and the population in western Himalayan areas are considered to be smaller.[48] Between 2005 and 2017, 35 live and seven dead red pandas were confiscated in Sichuan, and several traders were sentenced to 3–12 years of imprisonment. A month-long survey of 65 shops in nine Chinese counties in the spring of 2017 revealed only one in Yunnan offered hats made of red panda skins, and red panda tails were offered in an online forum.[87]

Conservation

The red panda is listed in

CITES Appendix I and protected in all range countries; hunting is illegal. It has been listed as Endangered on the IUCN Red List since 2008 because the global population is estimated at 10,000 individuals, with a decreasing population trend. A large extent of its habitat is part of protected areas.[1]

Protected areas in red panda range countries
Country Protected areas
Nepal Api Nampa Conservation Area, Khaptad National Park, Rara National Park, Annapurna Conservation Area, Manaslu Conservation Area, Langtang National Park, Gaurishankar Conservation Area, Sagarmatha National Park, Makalu Barun National Park, Kanchenjunga Conservation Area[37]
India Khangchendzonga National Park, Singalila National Park, Varsey Rhododendron Sanctuary, Shingba Rhododendron Sanctuary, Fambong Lho Wildlife Sanctuary, Kyongnosla Alpine Sanctuary, Pangolakha Wildlife Sanctuary, Maenam Wildlife Sanctuary,[42] Namdapha National Park[88]
Bhutan
Jigme Khesar Strict Nature Reserve, Jigme Dorji National Park, Wangchuck Centennial National Park, Jigme Singye Wangchuck National Park, Bumdeling Wildlife Sanctuary, Sakteng Wildlife Sanctuary, Phrumsengla National Park, Jomotsangkha Wildlife Sanctuary[36]
Myanmar Hkakaborazi National Park, Hponkanrazi Wildlife Sanctuary,[89] Imawbum National Park[39]
China Yarlung Tsangpo Grand Canyon Nature Reserve in Tibet,[90] Wolong National Nature Reserve, Fengtongzhai and Yele National Nature Reserves, Dafengding Nature Reserve and Giant Panda National Park in Sichuan,[59][50][54][55][38] Gaoligongshan National Nature Reserve in Yunnan[56]
Red panda standing on a branch
Close-up of a red panda

A red panda anti-poaching unit and community-based monitoring have been established in Langtang National Park. Members of Community Forest User Groups also protect and monitor red panda habitats in other parts of Nepal.[91] Community outreach programs have been initiated in eastern Nepal using information boards, radio broadcasting and the annual International Red Panda Day in September; several schools endorsed a red panda conservation manual as part of their curricula.[92]

Since 2010, community-based conservation programmes have been initiated in 10 districts in Nepal that aim to help villagers reduce their dependence on natural resources through improved herding and food processing practices and alternative income possibilities. The Nepali government ratified a five-year Red Panda Conservation Action Plan in 2019.[93] From 2016 to 2019, 35 ha (86 acres) of high-elevation rangeland in Merak, Bhutan, was restored and fenced in cooperation with 120 herder families to protect the red panda forest habitat and improve communal land.[94] Villagers in Arunachal Pradesh established two community conservation areas to protect the red panda habitat from disturbance and exploitation of forest resources.[46] China has initiated several projects to protect its environment and wildlife, including Grain for Green, The Natural Forest Protection Project and the National Wildlife/Natural Reserve Construction Project. For the last project, the red panda is not listed as a key species for protection but may benefit from the protection of the giant panda and golden snub-nosed monkey, with which it overlaps in range.[95]

In captivity

Red panda at Symbio Wildlife Park

The

Cologne Zoos in 1908. In 1908, the first captive red panda cubs were born in an Indian zoo. In 1940, the San Diego Zoo imported four red pandas from India that had been caught in Nepal; their first litter was born in 1941. Cubs that were born later were sent to other zoos; by 1969, about 250 red pandas had been exhibited in zoos.[96] The Taronga Conservation Society started keeping red pandas in 1977.[97]

In 1978, a

European Endangered Species Programme in 1985. Members of international zoos ratified a global master plan for the captive breeding of the red panda in 1993. By late 2015, 219 red pandas lived in 42 zoos in Japan.[98] The Padmaja Naidu Himalayan Zoological Park participates in the Red Panda Species Survival Plan and kept about 25 red pandas by 2016.[99] By the end of 2019, 182 European zoos kept 407 red pandas.[100] Regional captive breeding programmes have also been established in North American, Australasian and South African zoos.[3]

Cultural significance

Stamp showing a red panda in a tree with some Hindi writing
Red panda on a 2009 stamp from India

The red panda's role in the culture and folklore of local people is limited. A drawing of a red panda exists on a 13th-century Chinese scroll.

Buddhist monks. Some tribal people in northeast India and the Yi people believe that it brings good luck to wear red panda tails or hats made of its fur.[101] In China, the fur is used for local cultural ceremonies. At weddings, the bridegroom traditionally carries the hide. Hats made of red panda tails are also used by local newlyweds as a "good-luck charm".[48]

The red panda was recognised as the

Disney/Pixar's Turning Red, and in several video games and comic books. It is the namesake of the Firefox browser and has been used as the namesake of music bands and of companies. Its appearance has been used for plush toys, t-shirts, postcards and other items.[101]

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Notes

  1. ^ Arundinaria maling and A. aristata referred to in the source have since been reclassified to distinct genera occurring in Asia.[63][64]

External links

Wikimedia Commons has media related to:
Ailurus fulgens (category)
  • Red Panda Network – a non-profit organization committed to the conservation of wild red pandas
Retrieved from "https://en.wikipedia.org/w/index.php?title=Red_panda&oldid=1208608754"