Biology:Qinling panda
| Qinling panda/Brown panda | |
|---|---|
| |
| Qi Zai, the only brown panda in captivity, born 2008 | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Carnivora |
| Family: | Ursidae |
| Genus: | Ailuropoda |
| Species: | |
| Subspecies: | A. m. qinlingensis
|
| Trinomial name | |
| Ailuropoda melanoleuca qinlingensis Wan, Wu & Fang, 2005
| |
The Qinling panda (Ailuropoda melanoleuca qinlingensis), also known as the brown panda, is a subspecies of the giant panda, discovered in 1959,[1] but not recognized as a subspecies until 2005.[2][3] Besides the nominate subspecies, it is the first giant panda subspecies to be recognized.
Characteristics
It differs from the more familiar nominate subspecies by its smaller skull and dark brown and light brown (rather than black and white) fur, and its smaller overall size.[4] Its eye spots are under the lower lid, instead of around the eyes. Brown pandas are exceedingly rare.
Most Qinling pandas are around the same size as a giant pandas, growing to 1.2–1.8 m (3 ft 11 in–5 ft 11 in) in length and 70–80 cm (28–31 in) at shoulder height. The males of the species are heavier than females, weighing roughly 60–190 kg (130–420 lb) whereas females are likely to weigh 75–125 kg (165–276 lb).[3]
| Qinling panda |
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Distribution and habitat
This subspecies is restricted to the Qinling Mountains, at elevations of 1,300–3,000 metres (4,300–9,800 ft). Its coloration is possibly a consequence of inbreeding: as the population is closed off from genetic variation and this might have led to the preservation of the mutation responsible.[2][4]
Conservation and threats
There are an estimated 200-300[5] Qinling pandas living in the wild as of 2023, up from 100 in 2001.[4]
On August 30, 1989, a female of this species was captured and brought to the Xi'an Qinling Wildlife Park to be mated with a regular giant panda. This panda's offspring was black-and-white, but reportedly started becoming brownish as it aged. According to other reports she gave birth to three cubs, all of whom died shortly after being born. The mother, named Dan-Dan, died in 2000.[6]
Due to the Qinling subspecies being restricted in range, it has been exposed to metal intoxicates such as copper, nickel, lead, and zinc that are now present in bamboo and soil as a result of the environmental pollution that is ongoing in China. More specifically, studies have indicated that the Qinling subspecies faces such anthropogenic threats so directly due to the fact that heavy concentrations of metals in bamboo and soil are positively correlated with high elevations, thus the Qinling Mountain Range is increasingly affected.[7]
Dental health is important for the survival of the Qinling Pandas. These pandas have a survival rate of 5–20 years. The reliance on bamboo while having a carnivore digestive system that strives them for energy challenges the nutrition and oral health of these pandas. They feed on bamboo for at least 14 hours a day, which causes their teeth to wear off.[8] The most common dental abnormalities that Qinling Pandas face are dental attrition and fractures.These two abnormalities can impact the survival rate of these pandas.[8]
References
- ↑ 闫云霞 (2015-12-01) (in zh). 在水一方. Beijing Book Co. Inc.. ISBN 978-7-227-06258-5. https://books.google.com/books?id=ndaWDwAAQBAJ&dq=%E4%BD%9B%E5%9D%AA%E5%8E%BF&pg=PT246.
- ↑ 2.0 2.1 Zhang, Baowei; Li, Ming; Zhang, Zejun; Goossens, Benoît; Zhu, Lifeng; Zhang, Shanning; Hu, Jinchu; Bruford, Michael W. et al. (2007). "Genetic Viability and Population History of the Giant Panda, Putting an End to the 'Evolutionary Dead End'?". Molecular Biology and Evolution 24 (8): 1801–1810. doi:10.1093/molbev/msm099. PMID 17513881.
- ↑ 3.0 3.1 "Error: no
|title=specified when using {{Cite web}}" (in zh). Chinese Academy of Sciences. 15 February 2005. http://www.cas.cn/xw/kjsm/gndt/200502/t20050215_1000599.shtml. - ↑ 4.0 4.1 4.2 Qiu-Hong Wan; Hua Wu; Sheng-Guo Fang (2005). "A new subspecies of giant panda (Ailuropoda melanoleuca) from Shaanxi, China". Journal of Mammalogy 86 (2): 397–402. doi:10.1644/BRB-226.1.
- ↑ "The Qinling Panda - Bear Conservation". http://www.bearconservation.org.uk/qinling-panda/.
- ↑ "Sepia Giant Panda". http://www.messybeast.com/extinct/sepia-giant-panda.htm.
- ↑ Zhao, Yan; Chen, Yi-ping; Ellison, Aaron; Liu, Wan-gang; Dong, Chen (June 10, 2019). "Establish an environmentally sustainable Giant Panda National Park in the Qinling Mountains". Science of the Total Environment 668: 979–987. doi:10.1016/j.scitotenv.2019.03.070. PMID 31018476. Bibcode: 2019ScTEn.668..979Z. https://doi.org/10.1016/j.scitotenv.2019.03.070. Retrieved October 25, 2021.
- ↑ 8.0 8.1 Jin, Yipeng; Chen, Si; Chao, Yanqiao; Pu, Tianchun; Xu, Hongqian; Liu, Xiaobin; Zhao, Kaihui; Nie, Yonggang et al. (2015). "Dental Abnormalities of Eight Wild Qinling Giant Pandas (Ailuropoda melanoleuca qinlingensis), Shaanxi Province, China". Journal of Wildlife Diseases 51 (4): 849–859. doi:10.7589/2014-12-289. PMID 26280879.
External links
Wikidata ☰ Q2562912 entry
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