Greater Egyptian jerboa

Species of mammal

Greater Egyptian jerboa
Temporal range: Late Pliocene – Present
Conservation status

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Dipodidae
Genus: Jaculus
Species:
J. orientalis
Binomial name
Jaculus orientalis
Erxleben, 1777

The greater Egyptian jerboa (Jaculus orientalis) is a species of rodent in the family Dipodidae.[2] It is found in Algeria, Egypt, Libya, Morocco, Saudi Arabia, Tunisia, and is possibly extinct in the Negev Desert of Israel. Its natural habitats are subtropical or tropical dry shrubland, sandy shores, and arable land.

Description

An adult greater Egyptian jerboa has a head-and-body length of about 13 centimetres (5 in) and a tail of 20 centimetres (8 in). The upper parts are yellowish-brown or sandy-brown and the underparts are white. The hind legs are very large and are about four times longer than the forelimbs.[3] The feet have hairy pads which improves locomotion on sand. The tail is nearly naked but ends in a large tuft of hair which is black at the base and white at the tip. The tail is used as a prop to stabilise the animal when it stands and moves on its hind legs.[3]

Distribution and habitat

On the African continent, the greater Egyptian jerboa is found in Morocco, Algeria, Tunisia, Libya and Egypt. It is also present in the Judaean Desert, the Negev Desert (possibly extinct by 2016[4]) and on the Sinai Peninsula. It occupies a wide range of habitat types including deserts and semi-deserts, sand dunes near the coast, marshes, pasture, and arable land.[1]

Behaviour

Stuffed specimen in the National Museum of Nature and Science, Tokyo, Japan

The greater Egyptian jerboa is a sociable species. The burrows are dug in firm ground and may be up to 2 metres (7 ft) long. It shelters inside during the day, emerging at dusk or at night to forage for seeds, shoots and roots. Food is sometimes stored in chambers in the burrow. This jerboa probably does not need to drink as it gets enough moisture from its food.[5] It has been observed sheltering under, and eating desert truffles (Terfezia species).[6]

Breeding usually takes place between November and July. The nesting chamber may have some animal fur as bedding.[5] The gestation period is about forty days and the litter size ranges from two to five. There is a single litter in the year and a long developmental period before the young are weaned. When first born, the young have hind legs the same length as their forelegs and as they begin to move around, do so by dragging themselves with their forelimbs.[7] The hind legs gradually lengthen and by four weeks, quadrupedal locomotion starts. Bipedal locomotion starts about seven weeks after birth.[7]

Status

The greater Egyptian jerboa has a wide range and is common in much of that range. It is a nocturnal species and seems to have no major threats. The population is stable and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]

References

  1. ^ a b c Aulagnier, S. (2017) [errata version of 2016 assessment]. "Jaculus orientalis". IUCN Red List of Threatened Species. 2016: e.T10913A115518664. doi:10.2305/IUCN.UK.2016-3.RLTS.T10913A22201033.en. Retrieved 21 February 2022.
  2. ^ Holden, M.E.; Musser, G.G. (2005). "Family Dipodidae". In Wilson, D.E.; Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 884. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. ^ a b Wiest, Whitney. "Jaculus orientalis: Greater Egyptian jerboa". Animal Diversity Web. Retrieved 2015-08-04.
  4. ^ Zafrir Rinat, "Have You Met the Negev's 'Jumping Rat?' Too Late, It Doesn't Live Here Anymore", Haaretz, 12.10.2016
  5. ^ a b Hoath, Richard (2009). A Field Guide to the Mammals of Egypt. American University in Cairo Press. pp. 195–197. ISBN 978-977-416-254-1.
  6. ^ Chatin A. (1891). "Contribution à l'histoire naturelle de la truffe: II Terfas ou truffes d'Afrique et d'Arabie, genres Terfezia et Tirmania". Bulletin de la Société Botanique de France. 38: 54–64. doi:10.1080/00378941.1891.10828525.
  7. ^ a b Eilam, David; Shefer, Gabi (1997). "The developmental order of bipedal locomotion in the jerboa (Jaculus orientalis): Pivoting, creeping, quadrupedalism, and bipedalism". Developmental Psychobiology. 31 (2): 137–142. doi:10.1002/(SICI)1098-2302(199709)31:2<137::AID-DEV6>3.0.CO;2-L. PMID 9298639.
  • Holden, M. E. and G. G. Musser. 2005. Family Dipodidae. Pp. 871–893 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.

External links

Wikimedia Commons has media related to Jaculus orientalis.
  • v
  • t
  • e
Extant species of family Dipodidae
Sicistinae
Sicista
(Birch mice)
  • Armenian birch mouse (Sicista armenica)
  • Northern birch mouse (Sicista betulina)
  • Caucasian birch mouse (Sicista caucasica)
  • long-tailed birch mouse (Sicista caudata)
  • Chinese birch mouse (Sicista concolor)
  • Kazbeg birch mouse (Sicista kazbegica)
  • Kluchor birch mouse (Sicista kluchorica)
  • Nordmann's birch mouse (Sicista loriger)
  • Altai birch mouse (Sicista napaea)
  • gray birch mouse (Sicista pseudonapaea)
  • Severtzov's birch mouse (Sicista severtzovi)
  • Strand's birch mouse (Sicista strandi)
  • Southern birch mouse (Sicista subtilis)
  • Tien Shan birch mouse (Sicista tianshanica)
  • Hungarian birch mouse (Sicista trizona)
Zapodinae
(Jumping mice)
Eozapus
  • Chinese jumping mouse (Eozapus setchuanus)
Napaeozapus
  • Woodland jumping mouse (Napaeozapus insignis)
Zapus
  • Meadow jumping mouse (Zapus hudsonius)
  • Western jumping mouse (Zapus princeps)
  • Pacific jumping mouse (Zapus trinotatus)
Allactaginae
(Jerboas)
Allactaga
Subgenus Allactaga
Iranian jerboa (Allactaga firouzi)
Hotson's jerboa (Allactaga hotsoni)
great jerboa (Allactaga major)
Svertzov's jerboa (Allactaga severtzovi)
Subgenus Orientallactaga
Balikun jerboa (Allactaga balikunica)
Gobi jerboa (Allactaga bullata)
Mongolian five-toed jerboa (Allactaga sibirica)
Allactodipus
  • Bobrinski's jerboa (Allactodipus bobrinskii)
Pygeretmus
  • lesser fat-tailed jerboa (Pygeretmus platyurus)
  • dwarf fat-tailed jerboa (Pygeretmus pumilio)
  • greater fat-tailed jerboa (Pygeretmus shitkovi)
Scarturus
  • small five-toed jerboa (Scarturus elater)
  • Euphrates jerboa (Scarturus euphratica)
  • four-toed jerboa (Scarturus tetradactyla)
  • Vinogradov's jerboa (Scarturus vinogradovi)
  • Williams's jerboa (Scarturus williamsi)
Cardiocraniinae
(Jerboas)
Cardiocranius
  • five-toed pygmy jerboa (Cardiocranius paradoxus)
Salpingotulus
  • Baluchistan pygmy jerboa (Salpingotulus michaelis)
Salpingotus
Subgenus Anguistodontus
thick-tailed pygmy jerboa (Salpingotus crassicauda)
Subgenus Prosalpingotus
Heptner's pygmy jerboa (Salpingotus heptneri)
pale pygmy jerboa (Salpingotus pallidus)
Thomas's pygmy jerboa (Salpingotus thomasi)
Subgenus Salpingotus
Kozlov's pygmy jerboa (Salpingotus kozlovi)
Dipodinae
(Jerboas)
Dipus
  • northern three-toed jerboa (Dipus sagitta)
Eremodipus
  • Lichtenstein's jerboa (Eremodipus lichtensteini)
Jaculus
  • Blanford's jerboa (Jaculus blanfordi)
  • lesser Egyptian jerboa (Jaculus jaculus)
  • greater Egyptian jerboa (Jaculus orientalis)
Stylodipus
  • Andrews's three-toed jerboa (Stylodipus andrewsi)
  • Mongolian three-toed jerboa (Stylodipus sungorus)
  • thick-tailed three-toed jerboa (Stylodipus telum)
Paradipus
  • comb-toed jerboa (Paradipus ctenodactylus)
Euchoreutinae
(Jerboas)
Euchoreutes
  • long-eared jerboa (Euchoreutes naso)
Category
Taxon identifiers
Jaculus orientalis