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Published on: May 14, 2009
Estimating the Abundance of Widely Distributed Primates
Ray Hilborn1, Milani Chaloupka2
1School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington, USA.
Estimating animal abundance is challenging for widespread species, especially primates like the long-tailed macaque. This study reviews methods and identifies weaknesses to improve future abundance estimates for conservation.
Area of Science:
- Ecology
- Conservation Biology
- Primatology
Background:
- Monitoring widely distributed animals faces logistical challenges and often lacks funding.
- Conservation concern for widely distributed primates is increasing, necessitating abundance estimates for evidence-based management.
Purpose of the Study:
- To review methods for estimating abundance in widely distributed animals.
- To explore and critique the methods used for estimating the abundance of long-tailed macaques (Macaca fascicularis).
- To propose improvements for obtaining reliable abundance estimates.
Main Methods:
- Literature review of abundance estimation techniques for animals.
- In-depth analysis of a specific case study on long-tailed macaque abundance estimation.
- Identification of methodological weaknesses in existing studies.
Main Results:
- Existing abundance estimation methods for widespread animals are reviewed.
- Significant weaknesses were identified in the sole attempt to estimate long-tailed macaque abundance.
- A path towards obtaining reliable abundance estimates is proposed.
Conclusions:
- Reliable abundance estimates are crucial for the conservation of widely distributed primates.
- Current methods for estimating long-tailed macaque abundance are insufficient.
- Further research is needed to refine methodologies for accurate primate population monitoring.
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