Red Panda

The Red Panda or Lesser Panda, Ailurus fulgens ("shining cat"), is a mostly herbivorous mammal, specialized as a bamboo feeder. It is slightly larger than a domestic cat (40 - 60 cm long, 3 - 6 kg weight). The Red Panda is endemic to the Himalayas in Bhutan, southern China, India, Laos, Nepal, and Myanmar. Red Panda is the state animal in the Indian state of Sikkim. It is also the mascot of the Darjeeling international festivals. There is an estimated population of less than 2,500 mature individuals. Their population continues to decline due to habitat fragmentation.

Phylogenetics
The most recent molecular-systematic DNA research places the Red Panda into its own independent family Ailuridae. Ailuridae are in turn part of a trichotomy within the broad superfamily Musteloidea (Flynn et al., 2001) that also includes the Procyonidae and the Mephitidae + Mustelidae; but unlike the Giant Panda, it is not a bear (Ursidae).[2]

There are two extant subspecies of Red Panda: the Western Red Panda (Ailurus fulgens fulgens) that lives in the western part of its range, and the somewhat larger Styans Red Panda (Ailurus fulgens styani) that lives in the east-northeastern part of its range. The Western Red Panda has lighter pelage, especially in the face, while the Styans Red Panda has more dramatic facial markings. The effective population size in the Sichuan population is larger and more stable than that in the Yunnan population, implying a southward expansion from Sichuan to Yunnan.[3]

The taxonomic classification of both the Red Panda and Giant Panda has been under debate for many decades, as both species share characteristics of both bears and raccoons. However, they are only very distantly related by remote common ancestry from the Early Tertiary Period. Its common ancestor can be traced back to tens of millions of years ago with a wide distribution across Eurasia. Fossils of the Red Panda have been unearthed from China in the east to Britain in the west (Hu, 1990), and most recently a handful of fossils (Pristinailurus bristoli, Miocene,[4][5] considered to be a new genus and species of the Red Panda)[6] have also been discovered in North America.

Distribution
Red Pandas are native to southeastern Asia, along a crescent formed by the Himalaya Mountain foothills from western Nepal, southern Tibet, Bhutan, and Northeast India, then east into the highlands of Myanmar (Burma), the Gongshan Mountains of Yunnan province in China, and the Hengduan Mountains of Sichuan province in China. The latter area is thought to have been a refuge for Red Pandas, as well as many other animals, during the last (Pleistocene) period of glaciation. The gorge of the Brahmaputra River, as it loops around the eastern end of the Himalayas, is considered a natural division between the two subspecies, although some suggest the A. f. fulgens range extends more eastwardly into Yunnan China. Red pandas used to have a broader distribution farther northeast into China and farther southwest into India.

Red Pandas inhabit climates of moderate temperature (10-25 °C) with little annual fluctuation and prefer forested mountainous areas at elevations of 1,800-4,800 m, particularly temperate deciduous-coniferous forests with an understory of rhododendron and, of course, bamboo. They share habitat with another bamboo specialist, the Giant Panda, in China (Wolong Preserve). Red Pandas are cavity nesters, using rock dens and old hollow trees. They often spend the day drooped over a branch high in the trees, feeding more actively at dawn and dusk. There are also several captive red panda populations living in zoos around the world. The North American captive population is maintained under the Species Survival Plan (SSP), and contained 182 animals as of October 2001.

Physical characteristics
The Red Panda is quite long: 79-120 cm, or 31 to 47 in (including the tail length of 30 to 60 cm/12 to 24 in). Males weigh 4.5 to 6.2 kg (10 to 14 lb); females 3 to 4.5 kg (6 to 10 lb). The Red Panda is specialized as a bamboo feeder, with long and soft reddish-brown fur on upper parts, blackish fur on lower parts, light face with tear markings and robust cranial-dental features. The light face has white badges similar to those of a raccoon, but each individual can have distinctive markings. Its roundish head has medium-sized upright ears, a black nose, and very dark eyes: almost pitch black. Its long bushy tail with six alternating yellowish red transverse ocher rings provides balance and excellent camouflage against its habitat of moss and lichen covered trees. The legs are black, short and bear-like with thick fur on the soles of the paws hiding scent glands and serving as thermal insulation on snow-covered or ice surfaces. The Red Panda is specialized as a bamboo feeder with strong, curved and sharp semi-retractile claws standing inward for firm grasping to facilitate substantial movement on narrow tree branches and seizing leaves and fruit. Like the Giant Pandas (Ailuropoda melanoleuca), it has a “false thumb” that really is an extension of the wrist bone.

Behaviour
Red Pandas are crepuscular (most active at dawn and dusk) and live in the slopes of the south of the Himalayas and the mountainous forests of the southwest of China, at altitudes of up to 4,800 meters, and generally do not venture below 1,800 meters. They are sedentary during the day resting in the branches of trees and in tree hollows and increase their activity only in the late afternoon and/or early evening hours. They are very heat sensitive with an optimal “well-being” temperature between 17 and 25°C., and cannot tolerate temperatures over 25 °C at all. As a result, Red Pandas sleep during the hot noontime in the shady crowns of treetops, often lying stretched out on forked branches or rolled up in tree caves with their tail covering their face.

Red Pandas are very skillful and acrobatic animals that live predominantly in trees. They live in territories, frequently as loners, and only rarely live in pairs or in groups of families. They are very quiet except for some twittering and whistling communication sounds. They search for food at night, running along the ground or through the trees with speed and agility and, after finding food, use their front paws to place the food into their mouths. Red pandas drink by plunging their paw into the water and licking their paws. Predators of Red Pandas are snow leopards (Uncia uncia), martens (Mustelidae) and humans. The species has also faced a great deal of human-induced habitat destruction.

Red Pandas begin their daily activity with a ritual washing of their fur by licking their front paws and massaging their back, stomach and sides. They also scrub their back and belly along the sides of trees or a rock. They then patrol their territory, marking it with a strong musk-smelling secretion from their anal gland and with their urine.

If a Red Panda feels threatened or senses danger, it will often try to scamper up into an inaccessible rock column or a tree. If they can no longer flee, they stand up on their hind legs, which makes them appear somewhat more daunting and allows them the possibility of using the razor-sharp claws on their front paws, which can inflict substantial wounds. Red Pandas are friendly, but are not helpless, and will resist if they feel threatened

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