Using Tiger Faecal Samples for Population Estimation
Author Information
Author(s): Bhagavatula Jyotsna, Singh Lalji
Primary Institution: Centre for Cellular and Molecular Biology, Hyderabad, India
Hypothesis
Can DNA extracted from faecal samples of Bengal tigers be used for population estimation?
Conclusion
The study shows that tiger faecal matter can be a reliable source of DNA for estimating tiger populations in protected areas in India.
Supporting Evidence
- DNA methods based on non-invasive sampling have not been attempted for tiger population studies in India.
- Microsatellite markers were developed for the identification of individual tigers with a sibling Probability of Identity of 0.005.
- Field-collected tiger faecal samples were successfully used for DNA analysis.
Takeaway
Scientists can use tiger poop to find out how many tigers are living in the wild without bothering them.
Methodology
The study involved collecting faecal samples from tigers, extracting DNA, and using PCR to identify individual tigers.
Potential Biases
There may be misidentification of faecal samples from tigers and sympatric carnivores.
Limitations
The study's findings may not be applicable to all tiger populations due to potential variations in DNA extraction success.
Participant Demographics
Faecal samples were collected from Bengal tigers in protected areas of southern India.
Statistical Information
Statistical Significance
p > 0.05
Digital Object Identifier (DOI)
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