Protocols for recording morphometric measurement of Indian Pangolin (Manis crassicaudata)

Area of Science:

• Zoology
• Morphology
• Conservation Biology

Background:

• Accurate species descriptions are vital for field identification and cladistics.
• Indian pangolins (Manis crassicaudata) are the world's most trafficked mammals, with poorly understood morphoanatomical variations.
• Existing descriptions lack standardization, hindering comparative analysis.

Purpose of the Study:

• To present standardized protocols for morphometric data collection and reporting in Manis crassicaudata.
• To facilitate consistent and comparable morphological studies across the species' range.
• To aid in the identification and conservation of the Indian pangolin.

Main Methods:

• Proposes 13 morphometric measurements for pangolin bodies, categorized by age (juvenile, sub-adult, adult) and sex.
• Details procedures for counting and reporting body scales, considering regional variations and scale types.
• Includes methods for assessing forelimb claw morphometry using the Curvature Linear Index.

Main Results:

• A comprehensive protocol for systematic morphometric data collection in Manis crassicaudata is presented.
• The protocol allows for the description of sexual dimorphism and age-related variations.
• Standardized methods for scale and claw measurements are described.

Conclusions:

• Standardized morphometric protocols are essential for overcoming disparities in Manis crassicaudata descriptions.
• This method article provides a framework for consistent data collection, improving species identification and conservation research.
• Adoption of these protocols will enhance the reliability of morphoanatomical data for the Indian pangolin.