Sikkim pika

Sikkim pika
Conservation status
	Not evaluated (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Lagomorpha
Family:	Ochotonidae
Genus:	Ochotona
Species:	O. sikimaria
Binomial name
	Ochotona sikimaria; Thomas, 1922
Synonyms
	O. thibetana sikimaria R. S. Hoffmann & A. T. Smith, 2005;

The Sikkim pika (Ochotona sikimaria), or Sijin pika,^[1] is a species of pika known from the state of Sikkim in northeastern India.^[2] It was first described by Oldfield Thomas in 1922, but was classified as a subspecies of the Moupin pika (O. thibetana), O. t. sikimaria, until 2016, at which point it was determined to be a distinct species based on the size of its auditory bullae and DNA analysis.^[3]^[4] The species' separation was supported by later analyses of mitochondrial DNA in cytochrome b.^[5]^[6] It is closely related to the Nubra pika (O. nubrica).^[7]

The species is thought to be endangered due to habitat destruction.^[8]

References

^ ^a ^b ^c "Ochotona sikimaria (id=1001178)". ASM Mammal Diversity Database. American Society of Mammalogists. Retrieved 16 June 2025.
^ Dasgupta, Shreya (5 October 2016). "New species of rabbit-like pika discovered in India". Mongabay Environmental News. Retrieved 16 June 2025.
^ "New pika species discovered in Sikkim Himalaya". Nature India. 4 October 2016. doi:10.1038/nindia.2016.131. ISSN 1755-3180.
^ Dahal, Nishma; Lissovsky, Andrey A.; Lin, Zhenzhen; Solari, Katherine; Hadly, Elizabeth A.; Zhan, Xiangjiang; Ramakrishnan, Uma (2017). "Genetics, morphology and ecology reveal a cryptic pika lineage in the Sikkim Himalaya". Molecular Phylogenetics and Evolution. 106: 55–60. doi:10.1016/j.ympev.2016.09.015.
^ Liu, Shaoying; Jin, W.; Liao, R.; Sun, Z.; Zenj, T.; Fu, J.; Liu, Y.; Wang, X.; Li, P.; Tang, Ming-Kun; Chen, L.; Dong, L.; Han, M.; Gou, D. (2017). "Phylogenetic study of Ochotona based on mitochondrial Cyt b and morphology with a description of one new subgenus and five new species" 基于Cyt b基因和形态学的鼠兔属系统发育研究及鼠兔属1新亚属5新种描述. Acta Theriologica Sinica (in Chinese). 37 (1). doi:10.16829/j.slxb.201701001.
^ Wang, XiaoYun; Liang, Dan; Jin, Wei; Tang, MingKun; Shalayiwu; Liu, ShaoYing; Zhang, Peng (1 June 2020). Tamura, Koichiro (ed.). "Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas". Molecular Biology and Evolution. 37 (6): 1577–1592. doi:10.1093/molbev/msaa026. ISSN 0737-4038.
^ Tang, Rui-Xiang; Wang, Jiao; Li, Yi-Fei; Zhou, Cheng-Ran; Meng, Guan-Liang; Li, Feng-Jun; Lan, Yue; Price, Megan; Podsiadlowski, Lars; Yu, Yan; Wang, Xu-Ming; Liu, Yin-Xun; Yue, Bi-Song; Liu, Shan-Lin; Fan, Zhen-Xin (18 September 2022). "Genomics and morphometrics reveal the adaptive evolution of pikas". Zoological Research. 43 (5): 813–826. doi:10.24272/j.issn.2095-8137.2022.072. ISSN 2095-8137. PMC 9486525. PMID 35993133.
^ Alves, Paulo C.; Ferrand, Nuno; Hackländer, Klaus, eds. (2007). Lagomorph Biology: Evolution, Ecology, and Conservation. Berlin New York: Springer Science & Business Media. p. 99. ISBN 978-3-540-72446-9.

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[mdd-1] "Ochotona sikimaria (id=1001178)". ASM Mammal Diversity Database. American Society of Mammalogists. Retrieved 16 June 2025.

[2] Dasgupta, Shreya (5 October 2016). "New species of rabbit-like pika discovered in India". Mongabay Environmental News. Retrieved 16 June 2025.

[3] "New pika species discovered in Sikkim Himalaya". Nature India. 4 October 2016. doi:10.1038/nindia.2016.131. ISSN 1755-3180.

[4] Dahal, Nishma; Lissovsky, Andrey A.; Lin, Zhenzhen; Solari, Katherine; Hadly, Elizabeth A.; Zhan, Xiangjiang; Ramakrishnan, Uma (2017). "Genetics, morphology and ecology reveal a cryptic pika lineage in the Sikkim Himalaya". Molecular Phylogenetics and Evolution. 106: 55–60. doi:10.1016/j.ympev.2016.09.015.

[5] Liu, Shaoying; Jin, W.; Liao, R.; Sun, Z.; Zenj, T.; Fu, J.; Liu, Y.; Wang, X.; Li, P.; Tang, Ming-Kun; Chen, L.; Dong, L.; Han, M.; Gou, D. (2017). "Phylogenetic study of Ochotona based on mitochondrial Cyt b and morphology with a description of one new subgenus and five new species" 基于Cyt b基因和形态学的鼠兔属系统发育研究及鼠兔属1新亚属5新种描述. Acta Theriologica Sinica (in Chinese). 37 (1). doi:10.16829/j.slxb.201701001.

[6] Wang, XiaoYun; Liang, Dan; Jin, Wei; Tang, MingKun; Shalayiwu; Liu, ShaoYing; Zhang, Peng (1 June 2020). Tamura, Koichiro (ed.). "Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas". Molecular Biology and Evolution. 37 (6): 1577–1592. doi:10.1093/molbev/msaa026. ISSN 0737-4038.

[7] Tang, Rui-Xiang; Wang, Jiao; Li, Yi-Fei; Zhou, Cheng-Ran; Meng, Guan-Liang; Li, Feng-Jun; Lan, Yue; Price, Megan; Podsiadlowski, Lars; Yu, Yan; Wang, Xu-Ming; Liu, Yin-Xun; Yue, Bi-Song; Liu, Shan-Lin; Fan, Zhen-Xin (18 September 2022). "Genomics and morphometrics reveal the adaptive evolution of pikas". Zoological Research. 43 (5): 813–826. doi:10.24272/j.issn.2095-8137.2022.072. ISSN 2095-8137. PMC 9486525. PMID 35993133.

[8] Alves, Paulo C.; Ferrand, Nuno; Hackländer, Klaus, eds. (2007). Lagomorph Biology: Evolution, Ecology, and Conservation. Berlin New York: Springer Science & Business Media. p. 99. ISBN 978-3-540-72446-9.

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