IUCN / SSC Cat Specialist Group - Digital Cat Library |
|
||||||||||
|
||||||||||
|
|
| Jhala, Y.V.; Sadhu, A. | |
| Field guide for aging tigers | |
| 2017 Full Book | |
Herein we describe a field technique developed and used by us for this study to age tigers into six age groups (stages: cubs <12 months, juveniles 1-2 years, sub-adults >2-3 years, young-adults >3-5 years, prime-adults >5-10 years, old-adults >10 years). Field ageing of carnivores has been done using body characteristics and measurements (Schaller 1972, Smuts et al. 1978, Ashman et al. 1983, Goodrich et al. 2010, Banerjee & Jhala 2012), tooth eruption, wear and colouration (Ashman et al. 1983, Smuts et al. 1978, Stander 1997, Van Horn et al. 2003, Goodrich et al. 2010, Banerjee & Jhala 2012), gum line recession (Laundre et al. 2000, Fabregas and Garces-Narro 2014) and nose pigmentation (Whitman et al. 2004). In the absence of any comprehensive published method for ageing tigers from field observations, we developed ageing criteria based on observations of known-aged tigers in the wild, and close inspection of >20 tigers captured for research purpose whose age was known to the closest three months. We use body size, body characteristics, teeth eruption, wear and colouration, nose pigmentation and gum-line recession to age tigers in the field. |
|
 |
PDF files are only accessible to Friends of the Cat Group. Joining Friends of the Cat Group gives you unlimited access and downloads in the Cat SG Library for one year, and allows you to receive our newsletter Cat News (2 regular issues per year plus special issues). More information how to join here |
(c) IUCN/SSC Cat Specialist Group ( IUCN - The World Conservation Union) |