::: Welcome to Conservation Genome Resource Bank for Korean Wildlife :::
 
17_c.gif ¹®ÇåÁ¤º¸
17_c.gif ¾ß»ýµ¿¹°°ü·Ã ÀÚ·á ¹× ¼Ò½Ä
17_c.gif Á¾Á¤º¸
17_c.gif º¸ÀüÀ¯ÀüÇÐ/º¸Àü»ý¹°ÇÐ ÀÚ·á
17_c.gif ¾ß»ýµ¿¹°ÀÇÇÐ ¼Ò½Ä ¹× ÀÚ·á
  - õ¿¬±â³ä¹°ÀÇ ´ë»ó
sound.gif °¶·¯¸®
sound.gif ÀÚÀ¯°Ô½ÃÆÇ (¿¾³¯ °Ô½ÃÆÇ)
sound.gif °ü·Ã»çÀÌÆ®
sound.gif ÀÚ·á½Ç
sound.gif Ã£¾Æ¿À½Ã´Â ±æ
º¸ÀüÀ¯ÀüÇÐ/º¸Àü»ý¹°ÇÐ ÀÚ·á

View Article
Name
  ¿î¿µÀÚ 2007-04-23 13:59:03 | Hit : 28026 | Vote : 8072
Subject   [ÀÚ·á] Identification of individual tigers (Panthera tigris) from their pugmarks
J. Zool., Lond. (2005) 267, 9–18 C 2005

doi:10.1017/S0952836905007119

Identification of individual tigers (Panthera tigris) from their pugmarks

Sandeep Sharma ¢Ó, Yadvendradev Jhala* and Vishwas B. Sawarkar
Wildlife Institute of India, P.B. No. 18, Chandrabani, Dehradun, Uttaranchal 248001, India

(Accepted 20 January 2005)

Abstract
An objective multivariate technique is described for identification of individual tigers Panthera tigris from their pugmarks. Tracings and photographs of hind pugmarks were obtained from 23 pugmark-sets of 19 individually known tigers (17 wild and two captive tigers). These 23 pugmark-sets were then divided into two groups, one of 15 pugmark-sets for model building and another of eight pugmark-sets for model testing and validation. A total of 93 measurements were taken from each pugmark along with three gait measurements. We used CV ratio, F-ratio and removed highly correlated variables to finally select 11 variables from these 93 variables. These 11 variables did not differ between left and right pugmarks. Stepwise discriminant function analysis (DFA) based on these 11 variables correctly classified pugmark-sets to individual tigers. A realistic population estimation exercise was
simulated using the validation dataset. The algorithms developed here correctly allocated each pugmark-set to the correct individual tiger. The effect of extraneous factors, i.e. soil depth and multiple tracers, was also tested and pugmark tracings compared with pugmark photographs. We recommend collecting pugmarks from soil depths
ranging between 0.5 and 1.0 cm, and advocate the use of pugmark photographs rather than pugmark tracings to eliminate the chance of obtaining substandard data from untrained tracers. Our study suggests that tigers can be individually identified from their pugmarks with a high level of accuracy and pugmark-sets could be used for population estimation of tigers within a statistically designed mark–recapture framework.

Key words: footprints, individual identification, multivariate analysis, Panthera tigris, pugmark, spoor, tiger, tracks


http://journals.cambridge.org/download.php?file=%2FZOO%2FZOO267_01%2FS0952836905007119a.pdf&code=608c63c10f81b7d48a9e7b504bdd5319
 Prev   [ÀÚ·á] Phylogeographic origin of Hokkaido house mice (Mus musculus) as indicated by genetic markers with maternal, paternal and biparental inheritance
¿î¿µÀÚ
  2007/04/30 
 Next   [ÀÚ·á] Censusing and monitoring black rhino (Diceros bicornis) using an objective spoor (footprint) identification technique
¿î¿µÀÚ
  2007/04/23 


Copyright 1999-2024 Zeroboard / skin by daerew
151-742 ¼­¿ïƯº°½Ã °ü¾Ç±¸ ½Å¸²9µ¿ »ê56-1 ¼­¿ï´ëÇб³ ¼öÀÇ°ú´ëÇÐ 85µ¿ 802È£
Tel 02-888-2744, Fax 02-888-2754, E-mail cgrb@cgrb.org

Copyright © 2002-2004 CGRB All Rights Reserved