Mongolia's Gobi Bear: an Endangered Sub-Species

Only 30-50 Gobi bears may survive, but even this estimate is uncertain. They are known to persist only in the region of the Great Gobi Strictly Protected Area of southwestern Mongolia. Because of their present low population size, restricted range, and limited available habitat these bears are listed in the Mongolian Red Book of Endangered Species, a categorization that was validated by the bear’s designation as Critically Endangered in the November 2005 Mongolian Biodiversity Databank Assessment Workshop.  Additionally, these bears must now accommodate large and far-reaching mineral extraction in their range.

As a part of the Gobi Bear Project, Craighead Beringia South has helped to initiate research and to develop science-based strategies that are effective for the recovery of Mongolia’s Gobi bear population from its present Critically Endangered status.

Gobi Bear research field crew

Gobi Bear research field crew, 25 July 2005, Gobi Desert.

Publications:

A population genetic comparison of argali sheep (Ovis ammon) in Mongolia using the ND5 gene of mitochondrial DNA; implications for conservation. (2004). Tserenbataa, T., Ramey, R. R., Ryder, O. A., Quinn, W., Reading, R. P. Molecular Ecology, 13, 1333-1339.

The gobi bear project, Conservation of the critically endangered Gobi Bear. (2008). Reynolds, H., Alaska, R., Amgalan, L., Tserenbataa, T., Craighead, D., Mijiddorj, B., Proctor, M., Ross, J., Tumendemberel, O., Nyambaya, G., Dovchindorj, G., Amgalan, B. 14.

Gobi Bear Population Survey 2009. (2009). Tumendemberel, O., Proctor, M., Reynolds, H., Luvsamjamba, A., Tserenbatataa, T., Batmunkh, M., Craighead, D., Yanjin, N., Paetkau, D.

Presence of the neurotoxic amino acids β -N-methylamino-L-alanine(BMAA) and 2,4-diamino-butyric acid (DAB) in shallow springs from the Gobi Desert. (2009). D. Craighead, J.S. Metcalf, S.A. Banack, L. Amgalan, H.V. Reynolds, and M. Batmunkh. Amyotrophic Lateral Sclerosis, 10: 1, 96 — 100.

Gobi Bear Population Survey 2009. O Tumendemberel, M Proctor, H Reynolds, L Amgalan. H., Luvsamjamba, A., Tserenbatataa, T., Batmunkh, M., Craighead, D., Yanjin, N., Paetkau, D. Gobi Bear Project Team.

Gobi bear population survey and conservation in Mongolia. (2010). Tumendemberel, O., Proctor, M., Reynolds, H., Luvsamjamba, A., Tserenbatataa, T., Batmunkh, M., Craighead, D., Yanjin, N., Paetkau, D. Gobi Bear Project Team.

My Place, Your Place, Our Place!: The Gobi Bear's Place in Mongolia. (2014). CBS/Gobi Bear Project.

Gobi Bear Abundance and Inter-Oases Movements, Gobi Desert, Mongolia. (2015). Tumendemberel, O., Proctor, M., Reynolds, H., Boulanger, J., Luvsamjamba, A., Tserenbataa, T., Batmunkh, M., Craighead, D., Yanjin, N., Paetkau, D. Urus, 26(2) 129-142.

MITOCHONDRIAL CYTOCHROME B GENE SEQUENCE DIVERSITY IN THE MONGOLIAN RED SQUIRREL, Sciurus vulgaris L. (2013). Odbayar Tumendemberel, Bayarlkhagva Damdin, Munkhjargal Bayarlkhagva, University of Wyoming.

Review of Gobi bear research (Ursus arctos gobiensis, Sokolov and Orlov, 1992). (2016). A Luvsamjamba, H Reynolds, A Yansanjav, T Tserenbataa, B Amgalan, et al. Arid Ecosystems, 6(3), 206-212.

Phylogeography, genetic diversity, and connectivity of brown bear populations in Central Asia. (2019). O Tumendemberel, A Zedrosser, MF Proctor, HV Reynolds, JR Adams, et al. PloS one, 14(8), e0220746.

Evolutionary history, demographics, and conservation of brown bears: filling the knowledge gap in Central Asia. (2020). Thesis for: Ph.D, Advisor: Andreas Zedrosser, Frank Rosell, Mona Sæbǿ, Michael Proctor, John Swenson, Lisette Waits, Project: Gobi bear ecological genetics and its phylogenetic studies.

Long‐term monitoring using DNA sampling reveals the dire demographic status of the critically endangered Gobi bear. (2021). O Tumendemberel, JM Tebbenkamp, A Zedrosser, MF Proctor, et al. Ecosphere, 12(8), e03696.

The gobi bear and the Mongolian Gobi Desert. CBS.

In November 2020, Odbayar Tumendemberel from USN’s PhD program in Ecology defended her thesis for the degree of PhD: Evolutionary history, demographics, and conservation of brown bears (Ursus arctos): filling the knowledge gap in Central Asia.

The aim of the PhD project was to answer two main questions 1) population demographics of critically endangered Gobi bears, 2) evolutionary history of brown bears in Central Asia. Between 1996-2018, we collected 2660 non-invasive genetic samples from brown bears in the Gobi Desert allowing us to identify and genetically monitor 65 unique individuals over 20 years. Based on mark-recapture analyses, annual population size was only 23-31 individuals. Additionally, Gobi bear population has a highly skewed sex ratio (3M:1F) and high degree of inbreeding. This suggests that Gobi bears are one of the most critically endangered population in the world. For the evolutionary questions, we collected genetic samples from 119 brown bears across 8 poorly studied geographic locations in Central Asia and used traditional markers (i.e. mitochondrial DNA and nDNA microsatellites) and whole genome data. We also included Genbank data from brown bears in Europe and North America to understand the wide-range evolutionary history.

 
Gobi_trip_Odko.jpg (610x814).jpg

We found 6-8 divergent brown bear lineages in Northern Asia, Europe (2 potential subclades), Gobi, Himalaya, Ancestral lineage in North Asia, North America (2 potential subclades). These results suggest that bears in Himalaya and Gobi are different evolutionary significant units and 2 subspecies including Ursus arctos gobiensis and Ursus arctos isabellinus. These demographics and genetic results highlight the critical status and uniqueness of Gobi bears and answered fundamental question necessary for effective conservation.

(University of South-Eastern Norway, 2020)