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Pandey, Puneet
- Use of Molecular-Based Approach in Resolving Subspecies Ambiguity of the Rescued Tiger Cubs from Arunachal Pradesh, India and their Relationship with Other Population
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Authors
Affiliations
1 Wildlife Institute of India, Chandrabani, Dehradun 248 001, IN
2 Dr A.P.J. Abdul Kalam Technical University, Lucknow 226 301, IN
3 Amity Institute of Forestry and Wildlife, Amity University, Noida 201 313, IN
1 Wildlife Institute of India, Chandrabani, Dehradun 248 001, IN
2 Dr A.P.J. Abdul Kalam Technical University, Lucknow 226 301, IN
3 Amity Institute of Forestry and Wildlife, Amity University, Noida 201 313, IN
Source
Current Science, Vol 114, No 11 (2018), Pagination: 2368-2373Abstract
Genetic approach is often suggested for resolving taxonomic ambiguities in areas where there have been overlaps in distribution of a species or subspecies. The Northeast part of India is one of the identified biodiversity hotspots, having the junction of Palearctic and Indomalyan realms with dense canopy forests and rugged terrains. The distribution range of two tiger subspecies, i.e. Bengal tiger and northern Indo- Chinese tiger, overlaps with each other in this region. The government authorities rescued three tiger cubs from Angrim Valley Village, Arunachal Pradesh, Northeast India in November 2012. We carried out a comprehensive genetic study on the rescued cubs to elucidate their subspecies status and determine their relationship with the remnant tiger populations. Our findings based on 3661 base pair of mitochondrial DNA sequence spanning across six mitochondrial genes (ND1, ND2, ND5, ND6, 12S rRNA and CytB) and non-coding control region (CR) suggest the Bengal tiger ancestry of the rescued tiger cubs. Further, comparison of mitochondrial haplotype with other Bengal tiger populations reveals that the haplotype reported for the rescued cub is novel and has close affinity to the northeast tiger populations of India. However, detailed population assignment to infer the source of origin was not possible due to lack of genetic data for all Bengal tiger populations. The present study attempts an assessment of tiger status that has resulted in identification of another tiger occupied landscape in India (Dibang Tiger Reserve).Keywords
Bengal Tiger, DNA Sequencing, Single Nucleotide Polymorphism, Subspecies.Full Text
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- Acquisition of Vacated Home Ranges by Tigers
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PDF Views:77
Authors
Randeep Singh
1,
Puneet Pandey
1,
Qamar Qureshi
2,
Kalyanasundaram Sankar
3,
Paul R. Krausman
4,
Surendra Prakash Goyal
2
Affiliations
1 Wildlife Institute of India, Post Box # 18, Dehradun 248 001 and Amity Institute of Forestry and Wildlife, Amity University, Sector-125, Noida 201 303, IN
2 Wildlife Institute of India, Post Box # 18, Dehradun 248 001, IN
3 Wildlife Institute of India, Post Box # 18, Dehradun 248 001 and Salim Ali Centre for Ornithology and Natural History, Coimbatore 641 108, IN
4 School of Natural Resources and the Environment, University of Arizona, Tucson, Arizona 85721, US
1 Wildlife Institute of India, Post Box # 18, Dehradun 248 001 and Amity Institute of Forestry and Wildlife, Amity University, Sector-125, Noida 201 303, IN
2 Wildlife Institute of India, Post Box # 18, Dehradun 248 001, IN
3 Wildlife Institute of India, Post Box # 18, Dehradun 248 001 and Salim Ali Centre for Ornithology and Natural History, Coimbatore 641 108, IN
4 School of Natural Resources and the Environment, University of Arizona, Tucson, Arizona 85721, US
Source
Current Science, Vol 119, No 9 (2020), Pagination: 1549-1554Abstract
Understanding the social organization and acquisition of potential home ranges in solitary polygamous mammals is important for their management and conservation. However, such information requires a continuous long-term study. Therefore, limited information is available for mammals from South Asia. We studied the western most distributed Bengal tiger (Panthera tigris) population of Ranthambhore Tiger Reserve (RTR), Rajasthan, India, intensively during 2005–2011 using direct observation and intensive camera trapping-based methods. We examined how the home ranges of deceased tigers would be filled. Nine home ranges of tigers were vacated (two males and seven females) because of death, translocation, emigration and dispersal. Vacated female home ranges were filled by neighbouring tigers; 57% of neighbouring females were related to each other and after females vacated their ranges, their daughters acquired these home ranges. Mother tigers shared their home ranges with their daughters to increase the reproductive success of the latter. The home range of adult male tiger (TM-02) was estimated to be 73 sq. km using camera traps. Vacated male home ranges were filled by four transient individuals that were not related to each other. These data help understand the social organization and land tenure system of tigers in semi-arid habitats of India.Full Text