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|location=London
|location=London
|pages={{page needed|date=September 2011}}
|pages={{page needed|date=September 2011}}
}}</ref> Muntjacs have expanded very rapidly, and are now present in most English counties south of the [[M62 motorway]] and have also expanded their range into [[Wales]]. The British Deer Society coordinated a survey of wild deer in the UK between 2005 and 2007, and they reported that muntjac deer had noticeably expanded their range since the previous census in 2000.<ref>[http://www.bds.org.uk/c2/uploads/muntjac.pdf Deer Distribution Survey 2007] The British Deer Society. Retrieved 6 September 2011.</ref> It is anticipated that muntjacoffss may soon become the most numerous species of deer in England and may have also crossed the border into Scotland with a couple of specimens appearing in Northern Ireland in 2009; they have been spotted in the Republic of Ireland in 2010, almost certainly having reached there with some human assistance.
}}</ref> Muntjacs have expanded very rapidly, and are now present in most English counties south of the [[M62 motorway]] and have also expanded their range into [[Wales]]. The British Deer Society coordinated a survey of wild deer in the UK between 2005 and 2007, and they reported that muntjac deer had noticeably expanded their range since the previous census in 2000.<ref>[http://www.bds.org.uk/c2/uploads/muntjac.pdf Deer Distribution Survey 2007] The British Deer Society. Retrieved 6 September 2011.</ref> It is anticipated that muntjacs may soon become the most numerous species of deer in England and may have also crossed the border into Scotland with a couple of specimens appearing in Northern Ireland in 2009; they have been spotted in the Republic of Ireland in 2010, almost certainly having reached there with some human assistance.


Males have short antlers, which can regrow, but they tend to fight for territory with their "tusks" (downward-pointing canine teeth). The presence of these "tusks" is otherwise unknown in native British wild deer and can be discriminatory when trying to differentiate a muntjac from an immature native deer, although [[Chinese Water Deer]] also have visible tusks (downward-pointing canine teeth); however, they are much less widespread.{{Citation needed|date=August 2009}}
Males have short antlers, which can regrow, but they tend to fight for territory with their "tusks" (downward-pointing canine teeth). The presence of these "tusks" is otherwise unknown in native British wild deer and can be discriminatory when trying to differentiate a muntjac from an immature native deer, although [[Chinese Water Deer]] also have visible tusks (downward-pointing canine teeth); however, they are much less widespread.{{Citation needed|date=August 2009}}


[[File:Metaphase spread of the Indian muntjac (Muntiacus muntjak vaginalis).jpg|thumb|''Muntiacus muntjak vaginalis'' chromosomes]]
[[File:Metaphase spread of the Indian muntjac (Muntiacus muntjak vaginalis).jpg|thumb|''Muntiacus muntjak'' chromosomes]]
Muntjacs are of great interest in evolutionary studies because of their dramatic [[chromosome]] variations and the recent discovery of several new species. The [[Indian Muntjac]] (''Muntiacus muntjak'') is the mammal with the lowest recorded chromosome number: The male has a [[diploid number]] of 7, the female only 6 chromosomes. [[Reeves's Muntjac]] (''Muntiacus reevesi''), in comparison, has a diploid number of 46 chromosomes.<ref>Doris H. Wurster and Kurt Benirschke, "Indian Momtjac, Muntiacus muntjak: A Deer with a Low Diploid Chromosome Number." ''Science'' 12 June 1970: Vol. 168. no. 3937, pp. 1364-1366.</ref>
Muntjacs are of great interest in evolutionary studies because of their dramatic [[chromosome]] variations and the recent discovery of several new species. The [[Indian Muntjac]] (''Muntiacus muntjak'') is the mammal with the lowest recorded chromosome number: The male has a [[diploid number]] of 7, the female only 6 chromosomes. [[Reeves's Muntjac]] (''Muntiacus reevesi''), in comparison, has a diploid number of 46 chromosomes.<ref>Doris H. Wurster and Kurt Benirschke, "Indian Momtjac, Muntiacus muntjak: A Deer with a Low Diploid Chromosome Number." ''Science'' 12 June 1970: Vol. 168. no. 3937, pp. 1364-1366.</ref>


Revision as of 20:13, 2 January 2013

Muntjac
Indian Muntjac
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Artiodactyla
Suborder:
Ruminantia
Family:
Cervidae
Subfamily:
Cervinae
Genus:
Muntiacus

Muntjacs, also known as Barking Deer and Mastreani Deer, are small deer of the genus Muntiacus. Muntjacs are the oldest known deer, appearing 15–35 million years ago, with remains found in Miocene deposits in France, Germany[1] and Poland.[2]

Description

Skull

The present-day species are native to South Asia and can be found in Sri Lanka, Southern China, Taiwan, Japan (Boso Peninsula and Ōshima Island), India and Indonesian islands. They are also found in the lower Himalayas and in Burma. Inhabiting tropical regions, the deer have no seasonal rut and mating can take place at any time of year; this behaviour is retained by populations introduced to temperate countries.

Reeves's Muntjac has been introduced to England, with wild deer descended from escapees from Woburn Safari Park around 1925.[3] Muntjacs have expanded very rapidly, and are now present in most English counties south of the M62 motorway and have also expanded their range into Wales. The British Deer Society coordinated a survey of wild deer in the UK between 2005 and 2007, and they reported that muntjac deer had noticeably expanded their range since the previous census in 2000.[4] It is anticipated that muntjacs may soon become the most numerous species of deer in England and may have also crossed the border into Scotland with a couple of specimens appearing in Northern Ireland in 2009; they have been spotted in the Republic of Ireland in 2010, almost certainly having reached there with some human assistance.

Males have short antlers, which can regrow, but they tend to fight for territory with their "tusks" (downward-pointing canine teeth). The presence of these "tusks" is otherwise unknown in native British wild deer and can be discriminatory when trying to differentiate a muntjac from an immature native deer, although Chinese Water Deer also have visible tusks (downward-pointing canine teeth); however, they are much less widespread.[citation needed]

Muntiacus muntjak chromosomes

Muntjacs are of great interest in evolutionary studies because of their dramatic chromosome variations and the recent discovery of several new species. The Indian Muntjac (Muntiacus muntjak) is the mammal with the lowest recorded chromosome number: The male has a diploid number of 7, the female only 6 chromosomes. Reeves's Muntjac (Muntiacus reevesi), in comparison, has a diploid number of 46 chromosomes.[5]

The genus Muntiacus has 12 recognized species:

See also

References

  1. ^ public domain Baynes, T. S.; Smith, W. R., eds. (1884). Encyclopædia Britannica. Vol. 17 (9th ed.). New York: Charles Scribner's Sons. {{cite encyclopedia}}: Missing or empty |title= (help)
  2. ^ Teresa Czyżewska, Krzysztof Stefaniak Acta zoologica cracoviensia, Volume 37 Number 1 (1994) Pages 55–74.
  3. ^ George Kenneth Whitehead (1964). The deer of Great Britain and Ireland: an account of their history, status and distribution. London: Routledge & K. Paul. pp. &#91, page needed&#93, . Retrieved 6 September 2011.
  4. ^ Deer Distribution Survey 2007 The British Deer Society. Retrieved 6 September 2011.
  5. ^ Doris H. Wurster and Kurt Benirschke, "Indian Momtjac, Muntiacus muntjak: A Deer with a Low Diploid Chromosome Number." Science 12 June 1970: Vol. 168. no. 3937, pp. 1364-1366.
  6. ^ "Fauna of Corbett National Park". corbettnationalpark.in. Retrieved 12 March 2012.
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