Libyan jird

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Libyan jird
Libyan Jird.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Genus: Meriones
Species:
M. libycus
Binomial name
Meriones libycus

The Libyan jird (Meriones libycus) is a species of rodent in the family Muridae. It is found in Mauritania, Morocco, Algeria, Tunisia, Libya, Egypt, Jordan, Syria, Saudi Arabia, Iran, Iraq, Afghanistan, Turkmenistan, Uzbekistan, Kazakhstan and Western China. Its natural habitats are subtropical or tropical dry shrubland, intermittent saline lakes, hot deserts, and rural gardens.

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Description

The Libyan jird is a large species of jird with a head-and-body length of 100 to 160 mm (3.9 to 6.3 in), a similar-length tail and a weight of 56 to 105 g (2.0 to 3.7 oz). [3] The head is broad with large eyes, the fur is fine and dense and the hind legs are long. [4] The upper parts are greyish-brown, darker in colour than the midday jird (Meriones meridianus), which is usually smaller. The hairs on the underside have white tips and grey bases whereas the midday jird has all-white underparts apart from a brownish chest stripe. The tail is pale brown except for the terminal third of the tail which is deep brown or blackish. The claws are dark-coloured, and the soles of the hind feet are partly hairy so that patches of bare skin are visible. [3] In parts of its range it may be confused with Sundevall's jird (Meriones crassus) but that species is smaller, has pale claws and a smaller dark tail tuft. [4]

Distribution and habitat

The Libyan jird is native to North Africa and parts of Western and Central Asia. Its range extends from Mauritania and Morocco to Saudi Arabia, the Near East, Kazakhstan and Western China. Its typical habitat includes deserts and semi-deserts, river floodplains, wadis and areas with stable sand-dunes. It sometimes occurs in arable land. [1]

Ecology

The Libyan jird may live alone or in small colonies, and is more sociable in winter when colonies may contain twenty or thirty individuals. It inhabits a burrow up to 1.5 m (5 ft) deep which is a fairly complex series of passages with multiple entrances; an empty burrow of the great gerbil (Rhombomys opimus) may be used. The Libyan jird is a diurnal species and forages for seeds, bulbs, tubers and leaves, as well as any dead insect it may find. It often carries the food back to the burrow and here large quantities are stored in chambers near the surface, deeper burrows being used for nesting. It is opportunistically migratory, moving to new territory when food becomes scarce. Breeding takes place throughout most of the year with several litters of about five young being born. [3] [4]

In the man-made desert known as Aralkum that has been formed as a result of the shrinkage of the Aral Sea, [5] the Libyan jird has made use of the new habitat where it lives alongside other small rodents including the northern three-toed jerboa, the midday jird and the great gerbil. These rodents are about four times more abundant on the dried-up seabed than in the surrounding terrain, and the presence of this abundance of rodent prey has attracted carnivores such as the red fox, the corsac fox, the mountain weasel, the steppe polecat, the marbled polecat and the Turkestan wildcat. [6]

The Libyan jird has many adaptations to survive the extreme desert environments where it lives. These adaptations include a nocturnal lifestyle, burrowing behavior, and water conservation through excretion of concentrated urine. [7] In a study done on two different species of jirds exposed to 12 days of light and 12 days of dark, it was seen that even with disrupted light and dark patterns the Libyan jird exhibited natural rhythms to maintain its normal circadian routine. [7] Being nearly completely nocturnal helps the jird avoid the desert heat. Burrowing behavior also helps the jird regulate its body temperature and get out of the heat. During hot summer days, the jird’s body temperature maintained an average of 38.20°C with a 0.87°C fluctuation. [8] In the winter, it was 37.0°C with a 0.22°C fluctuation. [8] By keeping its body warmer in the summer, the jird may avoid some of the water loss necessary for evaporative cooling, helping it to survive the hot summer.

Status

The Libyan jird is a common species in suitable habitat across its wide range. It is presumed to have a large total population and is regarded as a pest in some areas where it is present in cropland. No special threats to this species have been identified, and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern". [1]

Related Research Articles

<span class="mw-page-title-main">Mongolian gerbil</span> Species of mammal

The Mongolian gerbil or Mongolian jird is a small rodent belonging to the subfamily Gerbillinae. Their body size is typically 110–135 mm, with a 95–120 mm tail, and body weight 60–130 g, with adult males larger than females. The animal is used in science and research or kept as a small house pet. Their use in science dates back to the latter half of the 19th century, but they only started to be kept as pets in the English-speaking world after 1954, when they were brought to the United States. However, their use in scientific research has fallen out of favor.

<span class="mw-page-title-main">Gerbillinae</span> Subfamily of mammals (rodents; Gerbillinae)

Gerbillinae is one of the subfamilies of the rodent family Muridae and includes the gerbils, jirds, and sand rats. Once known as desert rats, the subfamily includes about 110 species of African, Indian, and Asian rodents, including sand rats and jirds, all of which are adapted to arid habitats. Most are primarily active during the day, making them diurnal, and almost all are omnivorous.

<span class="mw-page-title-main">Fat-tailed gerbil</span> Species of rodent

The fat-tailed gerbil, also called the duprasi gerbil or doop, is a rodent belonging to the subfamily Gerbillinae. It is the only member of the genus Pachyuromys. They are frequently kept as pets.

<span class="mw-page-title-main">Marbled polecat</span> Species of carnivore

The marbled polecat is a small mammal belonging to the genus Vormela within the mustelid subfamily Ictonychinae. Vormela is from the German word Würmlein, which means "little worm". The specific name peregusna comes from perehuznya (перегузня), which is Ukrainian for "polecat". Marbled polecats are generally found in the drier areas and grasslands of southeastern Europe to western China. Like other members of the Ictonychinae, it can emit a strong-smelling secretion from anal sacs under the tail when threatened.

<span class="mw-page-title-main">Indian desert jird</span> Species of rodent

The Indian desert jird or Indian desert gerbil is a species of jird found mainly in the Thar Desert in India. Jirds are closely related to gerbils.

<i>Meriones</i> (rodent) Genus of rodents

Meriones is a rodent genus that includes the gerbil most commonly kept as a pet, Meriones unguiculatus. The genus contains most animals referred to as jirds, but members of the genera Sekeetamys, Brachiones, and sometimes Pachyuromys are also known as jirds. The distribution of Meriones ranges from northern Africa to Mongolia. Meriones jirds tend to inhabit arid regions including clay desert, sandy desert, and steppe, but are also in slightly wetter regions, and are an agricultural pest.

<span class="mw-page-title-main">Sundevall's jird</span> Species of rodent

Sundevall's jird is a species of rodent in the family of Muridae. It is found in Afghanistan, Algeria, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Libya, Pakistan, Morocco, Niger, Palestine, Oman, Saudi Arabia, Sudan, Syria, Tunisia, Turkey, Western Sahara, United Arab Emirates, Bahrain and possibly Mali. Its natural habitat is hot deserts.

<span class="mw-page-title-main">Midday jird</span> Species of rodent

The midday jird, also called midday gerbil, is a rodent species in the family Muridae and native to sandy deserts in Central and East Asia. It has been listed on the IUCN Red List as Least Concern since 2008.

<span class="mw-page-title-main">Persian jird</span> Species of rodent

The Persian jird is a species of rodent in the family Muridae found in Afghanistan, Armenia, Azerbaijan, Iran, Iraq, Pakistan, Turkey, and Turkmenistan.

Buxton's jird is a species of rodent in the family Muridae. It is found in the Negev desert and the northern coastal parts of the Sinai peninsula.

<span class="mw-page-title-main">Tristram's jird</span> Species of rodent

Tristram's jird is a species of rodent that lives in the Middle East. It is named after the Reverend Henry Baker Tristram who collected the first specimens. It is up to 155 mm (6.1 in) long, and lives in burrows in steppes and semi-deserts from Turkey and the Caucasus to Israel and Iran. Records from the Greek island of Kos represent the only gerbils reported from Europe, outside the former Soviet Union. It is a common, widespread species, and is not considered to be threatened.

<span class="mw-page-title-main">Wildlife of Libya</span> Natural fauna and flora of the country in north Africa

The wildlife of Libya is spread over the Mediterranean coastline and encompasses large areas of the Saharan desert. The protection of wildlife is provided through appropriate legislation in seven national parks, five reserves, 24 protected areas, two wetlands under Ramsar Convention, and also in other areas. Apart from these, there are also five UNESCO World Heritage Sites related to culture. The most important national parks are the El-Kouf National Park and Karabolli National Park. The well known nature reserves are the Benghazi Reserve and the Zellaf Reserve. The wildlife species recorded in the country are 87 mammals and 338 species of birds.

<span class="mw-page-title-main">Northern three-toed jerboa</span> Species of rodent

The northern three-toed jerboa is a species of rodent in the family Dipodidae. It is the only extant species within the genus Dipus. It ranges across Iran, Uzbekistan, Turkmenistan, Kazakhstan, Russia, China and Mongolia. A common species, the International Union for Conservation of Nature rates it as being of "least concern".

<span class="mw-page-title-main">Saharan striped polecat</span> Carnivore in Sahara

The Saharan striped polecat, also known as Saharan striped weasel and Libyan striped weasel, is a species of mammal in the family Mustelidae.

<span class="mw-page-title-main">North Saharan steppe and woodlands</span> Ecoregion in North Africa

The North Saharan steppe and woodlands is a desert ecoregion, in the deserts and xeric shrublands biome, that forms the northern edge of the Sahara. It extends east and west across Northern Africa, south of the Mediterranean dry woodlands and steppe ecoregion of the Maghreb and Cyrenaica, which is part of the Mediterranean forests, woodlands, and scrub biome. Winter rains sustain shrublands and dry woodlands that form an ecotone between the Mediterranean climate regions to the north and the hyper-arid Sahara Desert ecoregion to the south.

<span class="mw-page-title-main">Xerocole</span> Any animal adapted to live in the desert

A xerocole, is a general term referring to any animal that is adapted to live in a desert. The main challenges xerocoles must overcome are lack of water and excessive heat. To conserve water they avoid evaporation and concentrate excretions. Some are so adept at conserving water or obtaining it from food that they do not need to drink at all. To escape the desert heat, xerocoles tend to be either nocturnal or crepuscular.

References

  1. 1 2 3 Granjon, L. (2017) [errata version of 2016 assessment]. "Meriones libycus". IUCN Red List of Threatened Species . 2016: e.T13164A115110005. doi: 10.2305/IUCN.UK.2016-3.RLTS.T13164A22433926.en . Retrieved 25 February 2022.
  2. Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
  3. 1 2 3 Smith, Andrew T.; Xie, Yan; Hoffmann, Robert S.; Lunde, Darrin; MacKinnon, John; Wilson, Don E.; Wozencraft, W. Chris (2010). A Guide to the Mammals of China. Princeton University Press. pp. 249–250. ISBN   978-1-4008-3411-2.
  4. 1 2 3 "Libyan jird (Meriones libycus)". ARKive. Archived from the original on 2015-12-23. Retrieved 23 December 2015.
  5. Morais, Caitlin Dempsey (28 May 2014). "Aralkum Desert: The World's Newest Desert". Geo Lounge. Retrieved 23 December 2015.
  6. Breckle, Siegmar-W.; Wucherer, Walter; Dimeyeva, Liliya A.; Ogar, Nathalia P. (2011). Aralkum, a Man-Made Desert: The Desiccated Floor of the Aral Sea (Central Asia). Springer Science & Business Media. p. 240. ISBN   978-3-642-21117-1.
  7. 1 2 Alagaili, A. N.; Mohammed, O. B.; Bennett, N. C.; Oosthuizen, M. K. (2013-01-01). "A tale of two jirds: The locomotory activity patterns of the King jird (Meriones rex) and Lybian jird (Meriones lybicus) from Saudi Arabia". Journal of Arid Environments. 88: 102–112. Bibcode:2013JArEn..88..102A. doi:10.1016/j.jaridenv.2012.09.005. hdl:2263/21430. ISSN   0140-1963.
  8. 1 2 Alagaili, A. N.; Bennett, N. C.; Mohammed, O. B.; Zalmout, I. S.; Boyles, J. G. (2017-02-01). "Body temperature patterns of a small endotherm in an extreme desert environment". Journal of Arid Environments. 137: 16–20. Bibcode:2017JArEn.137...16A. doi:10.1016/j.jaridenv.2016.10.010. ISSN   0140-1963.