The Malayan Porcupine or Himalayan Porcupine (Hystrix brachyura) is a species of rodent

Rodent

Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....

 in the family Hystricidae. Three subspecies are extant in South

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 and South-east Asia.

Geographical distribution

The Malayan Porcupine ranges from Nepal

Nepal

Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India...

 through North-east India

North-East India

Northeast India refers to the easternmost region of India consisting of the contiguous Seven Sister States, Sikkim, and parts of North Bengal...

 (Arunachal Pradesh

Arunachal Pradesh

Arunachal Pradesh is a state of India, located in the far northeast. It borders the states of Assam and Nagaland to the south, and shares international borders with Burma in the east, Bhutan in the west, and the People's Republic of China in the north. The majority of the territory is claimed by...

, Sikkim

Sikkim

Sikkim is a landlocked Indian state nestled in the Himalayan mountains...

, West Bengal, Manipur, Mizoram, Meghalaya and Nagaland), to central and southern China (Xizang, Hainan, Yunnan, Sichuan, Chongqing, Guizhou, Hunnan, Guangxi, Guangdong, Hong Kong, Fujian, Jianxi, Zhejiang, Shanghai, Jiangsu, Anhui, Henan, Hubei, Shaanxi, Gansu), throughout Myanmar

Myanmar

Burma , officially the Republic of the Union of Myanmar , is a country in Southeast Asia. Burma is bordered by China on the northeast, Laos on the east, Thailand on the southeast, Bangladesh on the west, India on the northwest, the Bay of Bengal to the southwest, and the Andaman Sea on the south....

, Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

, Lao PDR, Cambodia

Cambodia

Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

 and Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

, through Peninsular Malaysia, to Singapore

Singapore

Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

, Sumatra

Sumatra

Sumatra is an island in western Indonesia, westernmost of the Sunda Islands. It is the largest island entirely in Indonesia , and the sixth largest island in the world at 473,481 km2 with a population of 50,365,538...

 (Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

) and throughout Borneo

Borneo

Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....

 (Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

, Malaysia, Sarawak

Sarawak

Sarawak is one of two Malaysian states on the island of Borneo. Known as Bumi Kenyalang , Sarawak is situated on the north-west of the island. It is the largest state in Malaysia followed by Sabah, the second largest state located to the North- East.The administrative capital is Kuching, which...

 and Brunei). It is also present on the island of Penang

Penang

Penang is a state in Malaysia and the name of its constituent island, located on the northwest coast of Peninsular Malaysia by the Strait of Malacca. It is bordered by Kedah in the north and east, and Perak in the south. Penang is the second smallest Malaysian state in area after Perlis, and the...

, Malaysia. It can be found from sea level to at least 1,300 m asl.

Evolution

This species and its close relatives is believed to have originated from southern Asia based on their current distribution. Their origin may lie from a common Late Pleistocene

Late Pleistocene

The Late Pleistocene is a stage of the Pleistocene Epoch. The beginning of the stage is defined by the base of the Eemian interglacial phase before the final glacial episode of the Pleistocene 126,000 ± 5,000 years ago. The end of the stage is defined exactly at 10,000 Carbon-14 years BP...

 ancestor when Sumatra, Borneo and Palawan were part of Sundaland

Sundaland

Sundaland is a biogeographical region of Southeastern Asia which encompasses the areas of the Asian continental shelf that was exposed during the last ice age. It included the Malay Peninsula on the Asian mainland, as well as the large islands of Borneo, Java, and Sumatra and their surrounding...

.

Habitat and ecology

It is found in various types of forest habitats as well as open areas near forests. It may stray into nearby agricultural

Agriculture

Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

 areas. It digs into the ground and inhabits dens near rocky areas, where it lives in small groups. It has a gestation period of 110 days and a litter size of two or three. The species may give birth to two litters annually. Their habitat is terrestrial where they are living in the hole of tree barks or roots. It also living in a burrow, from which a network of trails penetrate into surrounding habitat. It can be found in all forest types up to 1500m.

Characteristics

It is a large and stout bodied rodent covered with quills which are sharp, rigid structures. The quills/spines are modified hair. The quills or spines on their upper body parts are rough with black and white or yellowed stripe in color. The young’s soft quills become hard as they enter adulthood. It has short stocky legs covered in brown hairs which have four claws on the front and five on the hind legs. Both front and hind legs have smooth soles.The head and body measurement are around 63-72.5 cm and their tail is about 6–11 cm. Their weight is around 0.7 kg-2.4 kg

Diet

They normally feed on roots, tubers, bark and fallen fruits. They also eat carrion

Carrion

Carrion refers to the carcass of a dead animal. Carrion is an important food source for large carnivores and omnivores in most ecosystems. Examples of carrion-eaters include vultures, hawks, eagles, hyenas, Virginia Opossum, Tasmanian Devils, coyotes, Komodo dragons, and burying beetles...

 and insects.

Behaviour

H. brachyura is nocturnal. It forages

Foraging

- Definitions and significance of foraging behavior :Foraging is the act of searching for and exploiting food resources. It affects an animal's fitness because it plays an important role in an animal's ability to survive and reproduce...

 at night and rests during the day. It may be found singly or in pairs. It can also cans swim and can gnaw. The sow

Sow

Sow may refer to:* Sowing seed* Female animals: badger, bear, pig family* Shape in which metal is cast* Type of siege engine* River Sow, England* "Sow", a poem by Sylvia Plath* Sow , the band/spoken word project comprising Anna Wildsmith-People:...

 usually delivers a single pup

Pup

Pup may refer to:In zoology:*Puppies, younger dogs*Pinniped young*Shark young*Rodent youngIn other uses:* Sopwith Pup, an aircraft used by the British in World War I* Beagle Pup, a 1960s British light aircraft...

 at a time but delivering two pups has also been recorded. The gestation period

Gestation period

For mammals the gestation period is the time in which a fetus develops, beginning with fertilization and ending at birth. The duration of this period varies between species.-Duration:...

 is about 90 to 112 days. The maximum longevity of their life is about 27 years.

Conservation and economic importance

IUCN has categorized this species as Least concern(LC) species. The quills of the Malayan porcupine are used for ornamental purposes. They are also hunted for meat.

Sources

• I Dahlan,AA Salam,BS Amin,A Osman. (1995). Preference and Intake of Feedstuff by Crested Porcupines(Hystrix Brachyura) in Captivity. Ann Zootech 44, 271.

• Vaughan, T. A. (1985). Family Hystricidae. In T. A. Vaughan, Mammalogy Third Edition (pp. 266–267). Arizona: Saunders College Publishing.