AskDefine | Define pika

Dictionary Definition

pika n : small short-eared burrowing mammal of rocky uplands of Asia and western North America [syn: mouse hare, rock rabbit, coney, cony]

User Contributed Dictionary

English

Noun

  1. Any of several small, furry mammals, similar to guinea pigs, of the family Ochotonidae, from the mountains of North America and Asia.

Basque

Noun

  1. magpie

Breton

Verb

  1. prick

Finnish

Etymology

Noun

  1. Pika.

Synonyms

Anagrams

Hungarian

Noun

  1. lance

Pitjantjatjara

Noun

  1. pain

Polish

Noun

  1. spear
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Swahili

Verb

  1. To cook.

Extensive Definition

The name pika (archaically spelled pica) is used for any member of the Ochotonidae, a family within the order of lagomorphs, which also includes the Leporidae (rabbits and hares). One genus, Ochotona, is recognised within the family, and it includes 30 species. Pikas are also called rock rabbits or coneys. It is also known as the "whistling hare" due to its high-pitched alarm call when diving into its burrow. The pika may look like a hamster, but is actually a cousin of the rabbit. The name "pika" appears to be derived from the Tungus "piika", or perhaps from the Russian "pikat", to squeak. In the United States the pronunciation of the name is usually altered from /pika/ to /'paɪ·ka/, probably due to the spelling.

Habitat

Pikas are native to cold climates, mostly in Asia, North America and parts of eastern Europe. Most species live on rocky mountain sides, where there are numerous crevices to shelter in, although some also construct crude burrows. A few burrowing species are instead native to open steppe land. In the mountains of Eurasia, pikas often share their burrows with snowfinches, which build their nests there.
In a January 2006 article in the Journal of Biogeography, archeologist Donald Grayson warned that human activity and global climate change appeared to be pushing the American pika population to ever-higher elevations and thus possibly toward extinction. Grayson studied pika habitation over the past 40,000 years in the region between the Sierra Nevada (U.S.) and Rocky Mountains. An earlier Journal of Mammalogy article reached a similar conclusion.

Characteristics

Pikas are small hamster-like animals, with short limbs, rounded ears, and short tails. They are about 18-20 cm in body length, with a tail less than 2 cm long, and weigh between 75 and 290 grams, depending on species. Like rabbits, after eating they initially produce soft green feces, which they eat again to extract further nutrition, before producing the final, solid, fecal pellets.
These animals are herbivores, and feed on a wide variety of plant matter. Because of their native habitat, they primarily eat grasses, sedges, shrub twigs, moss, and lichen. As with other lagomorphs, pikas have gnawing incisors and no canines, although they have fewer premolars than rabbits, giving them a dental formula of:
Rock-dwelling pikas have small litters of less than five young, while the burrowing species tend to give birth to more young, and to breed more frequently, possibly due to a greater availability of resources in their native habitats. The young are born after a gestation period of between 25 and 30 days.

Activity

Pikas are diurnal or crepuscular, with higher altitude species generally being more active during the daytime. They show their peak activity before the winter season. Pikas do not hibernate, so they rely on collected hay for warm bedding and food. Pikas gather fresh grasses and lay them in stacks to dry. Once the grasses dry out, the pikas take this hay back to the burrows for storage. It is not uncommon for pikas to steal hay from others; the resulting disputes are usually exploited by neighboring predators like ferrets and large birds.
Eurasian pikas commonly live in family groups and share duties of gathering food and keeping watch. At least some species are territorial. North American pikas (O. princeps and O. collaris) are asocial, leading solitary lives outside the breeding season.

Species

References

External links

pika in Catalan: Ochotonidae
pika in Danish: Pibeharer
pika in German: Pfeifhasen
pika in Spanish: Ochotonidae
pika in French: Pika
pika in Lithuanian: Kiškėniniai
pika in Hungarian: Pocoknyúlfélék
pika in Japanese: ナキウサギ
pika in Maltese: Pika
pika in Dutch: Fluithazen
pika in Norwegian: Pipeharer
pika in Polish: Szczekuszkowate
pika in Portuguese: Pika
pika in Russian: Пищухи
pika in Slovenian: Žvižgači
pika in Finnish: Piiskujänikset
pika in Swedish: Pipharar
pika in Turkish: Pika
pika in Chinese: 鼠兔
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