Siberian musk deer

The Siberian musk deer (Moschus moschiferus) is a musk deer found in the mountain forests of Northeast Asia. It is most common in the taiga of southern Siberia, but is also found in parts of Mongolia, Inner Mongolia, Manchuria and the Korean peninsula.

Siberian musk deer
Moschus moschiferus
CITES Appendix I (CITES)[2][note 1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Moschidae
Genus: Moschus
Species:
M. moschiferus
Binomial name
Moschus moschiferus
Range of the Siberian musk deer

Their small shape allows them to hide from predators through tiny openings in the rocky terrain and also allows them to run exceptionally fast from their predators. Although bearing fangs, Siberian musk deer are actually herbivores, with their main source of nutrients being lichens.[3]

Due to the severe amount of poaching for its musk gland, the deer population is continuing to decrease. It is expected that the population will be reduced to at least 30% over the next three generations. However, efforts from each of the cited countries are beginning to restore the musk deer's population.[1]

Taxonomy

Siberia, North Mongolia, Russia, North China and Korea – M. m. moschiferus[1]

Russian Far East – M. m. turovi

Verkhoyansk Ridge – M. m. arcticus

Sakhalin – M. m. sachalinensis

Korea – M. m. parvipes

Evolution

The earliest findings of the musk deer belong to the Upper and Middle Pleistocene and they all come from places in China and from the south of the Soviet Far East.

The musk deer evolving in the mountain forests of eastern Asia spread widely since the Pleistocene in the mountain regions of Central, South-East Asia and in the north it spread to the south of the Soviet Far East. The musk deer also inhabited Sakhalin Island before its separation from the continent during the Quaternary period.[4]

Maturity and mating

It takes approximately a year for the Siberian musk deer to reach maturity, with an average deer living 10–14 years.

During breeding season, male deer will grow tusks instead of antlers.[3] These tusks are used to compete with other males and attract females. Tusks that are longer and stronger create a more intimidating stance and become more attractive to females as the offspring of that male are likely to become healthier.

Once the male and the female deer have procreated, the females will become pregnant for over 6 months. Females can give birth to 1–3 offspring, usually between the months of May through June.[5]

Behaviors

Musk will mark their territory, warning trespassing deer not to cross the boundary. When marking their territories, musk deer gather fallen branches, tree trunks, as well as plant stems, and place them in a circle. While placing the various branches around the circle, the deer will often do an olfactory examination and turn the back of its body towards the marked territories. Another way the Siberian musk deer will mark its territory is by defecating in already marked territories or unclaimed territories.[6]

Habitat and diet

Most Siberian musk deer are generally nocturnal, inhabiting the mountainous taiga and found in shrub-covered slopes where foods are abundant. The rocky location provides crevices and crags for the musk deer to hide from many predators, such as Siberian tiger, Amur leopard, snow leopard, Eurasian lynx, wolf, Red fox, brown bear, Asian black bear, wolverine and yellow-throated marten.

Lichen is the primary food source for the Siberian musk deer.

Musk deer have a preference for easily digestible nutritious foods that are both rich in protein and low in fibre. During periods of winter, musk deer can survive in even poorer food quality ranging in foods that are low in proteins but are high in energy and can be easily digested.[7]

The majority of their diet consists mostly of lichens, pine needles, leaves, and tree barks. During the winter, 99% of the musk deer's diet is lichens. Siberian musk deer have a preference for easily digestible nutritious foods.

Characteristics
Different views of the skull of a Siberian musk deer

The species is largely nocturnal and migrates only over short distances. It prefers altitudes of more than 2,600 m (8,500 ft). Adults are small, weighing 7–17 kg (15–37 lb).

The Siberian musk deer is classified as Vulnerable by the IUCN. It is hunted for its musk gland, which fetches prices as high as $45,000 per kilogram. Only a few tens of grams can be extracted from an adult male. It is possible to remove the gland without killing the deer, but this is seldom done. In 2016, the Korean company Sooam Biotech was reported to be attempting to clone the Siberian musk deer to help conserve the species.[8]

The most striking characteristics of the Siberian musk deer are its tusks and kangaroo-like face. Males grow the teeth for display instead of antlers.[9][10]

A distinct subspecies roams the island of Sakhalin.

World population: 230,000 Decrease Declining

  • Russian Federation, Sakhalin population: 600–500 Decrease Declining
  • Russian Federation, the Eastern Siberian population: 27,000–30,000 Decrease Declining
  • Russian Federation, Far Eastern population: 150,000 Decrease Declining
  • Mongolia: 44,000 Decrease Declining
  • China: unknown Decrease Declining
  • Democratic People's Republic of Korea: unknown Decrease Declining
  • Republic of Korea: unknown Decrease Declining[11]

Musk chemical composition

Siberian musk deer preputial gland secretions are constituted of free fatty acids and phenols (10%), waxes (38%) and steroids. Cholestanol, cholesterol, androsterone, Δ4-3α-hydroxy-17-ketoandrostene, 5β,3α-hydroxy-17-ketoandrostane, 5α,3β,17α-dihydroxyandrostane, 5β,3α,17β-dihydroxyandrostane and 5β,3α,17α-dihydroxyandrostane can be isolated from the steroid fraction. 3-Methylpentadecanone (muscone) was not identified among the secretion lipids.[12]

Threats

The decline of the Siberian musk deer's population began in China where the deer population was most abundant. Most notably in the Sichuan plains, the musk production accounted for 80% of the domestic trade in the 1950s.[5] New sightings of musk deer were later spotted in upper northeast Asia and Russia; these places where the deer were spotted soon opened their own musk markets. After the 1980s, the production begins to steadily decline due to hunting for their musk glands. The cycle of over-harvesting the deer's musk continued until the exploitation severely reduced the musk deer's population.

Another threat comes from the habitat loss by deforestation. For a long period, China cut more of its forest than they could replant. 200 million cm3[5] of China's forest resources were cut down in the past 25 years in order to harvest the timber stock in trade for commerce. Deforestation is a severe threat to the musk deer's long-term survival because the deer can only live in a few areas.

Conservation action

The Siberian musk deer is considered vulnerable, but is slowly declining to endangerment. In Russia, the Siberian musk deer is protected as Very Rare under part 7.1 of the Law of the Mongolian Animal Kingdom (2000) and also under the 1995 Mongolian Hunting Law.[1] The musk deer are also protected under the National Parks, which account for approximately 13% of the Siberian musk deer population.

At the international level, trading musk is controlled through CITES. All trades regarding musk are subject to strict regulation to avoid exploitation of the survival of the deer.[13]

References
  1. Nyambayar, B.; Mix, H.; Tsytsulina, K. (2015). "Moschus moschiferus". IUCN Red List of Threatened Species. 2015: e.T13897A61977573. doi:10.2305/IUCN.UK.2015-2.RLTS.T13897A61977573.en. Retrieved 12 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. Fessenden, M. (2014). "Fanged deer not extinct, still roaming the mountains of Afghanistan". smithsonianmag.com.
  4. "The musk deer, Moschus moschiferus, in USSR". IUCN. 2016-01-29. Retrieved 2021-03-27.
  5. Qi, W.-H., Li, J., Zhang, X.-Y., Wang, Z.-K., Li, X.-X., Yang, C.-Z., Fu, W. and Yue, B.-S. (2011) 'The reproductive performance of female forest musk deer () in captivity', Theriogenology, 76(5), pp. 874–881. doi: 10.1016/j.theriogenology.2011.04.018.
  6. Maksimova, D. A., Seryodkin, I. V., Zaitsev, V. A., & Miquelle, D. G. (2014). Research program of musk deer ecology in the Sikhote-Alin region. Achievements in the Life Sciences, 8(1), 65–71. doi:10.1016/j.als.2014.11.005
  7. Wang, W., Zhou, R., He, L., Liu, S., Zhou, J., Qi, L., Li, L. and Hu, D. (2015) 'The progress in nutrition research of musk deer: Implication for conservation', Applied Animal Behaviour Science, 172, pp. 1–8. doi: 10.1016/j.applanim.2015.09.006
  8. Zastrow, Mark (8 February 2016). "Inside the cloning factory that creates 500 new animals a day". New Scientist. Retrieved 23 February 2016.
  9. National Geographic Channel. Wild Russia. Siberia. (2009)
  10. "Fanged Deer Not Extinct, Still Roaming the Mountains of Afghanistan | Smart News | Smithsonian Magazine".
  11. "Factsheet: Siberian Musk Deer (Musk deer (Artiodactyla Moschidae) > Moschus moschiferus)". Archived from the original on 2012-12-07. Retrieved 2013-06-16.
  12. Musk deer (Moschus moschiferus): Reinvestigation of main lipid components from preputial gland secretion. V. E. Sokolov, M. Z. Kagan, V. S. Vasilieva, V. I. Prihodko and E. P. Zinkevich, Journal of Chemical Ecology, January 1987, Volume 13, Issue 1, pages 71–83, doi:10.1007/BF01020352
  13. Yang, Q., Meng, X., Xia, L. and Feng, Z. (2002) Conservation status and causes of decline of musk deer (Moschus spp.) in china. Available at: "Archived copy" (PDF). Archived from the original (PDF) on 2016-05-06. Retrieved 2016-04-13.{{cite web}}: CS1 maint: archived copy as title (link)

Notes
  1. Only populations of Afghanistan, Bhutan, India, Myanmar, Nepal, and Pakistan. All other populations are included in Appendix II.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.