Life history traits of gaur (Bos gaurus)
In this first detailed analysis of gaur Bos gaurus life-history traits data were collected from a 20-month field study in Mudumalai and Bandipur Tiger Sanctuaries, South India, and from captive gaur populations. A total of 1620 observed gaur were classified during the field study (January 2006 - August 2007), and data of captive gaur were compiled from: (i) gaur (n = 41) that were part of the captive gaur population at Mysore Zoo, South India (1994–2006); and (ii) gaur (n = 130) that lived their entire lives at Omaha’s Henry Doorly Zoo, Omaha, USA (1968–2006). Findings included: mean age of females at first parturition was 3 years; females remained fertile beyond the age of 15 years; adult females were three times more abundant than adult males in the wild; survival of females was greater than males beyond three years of age; and, life span of both sexes has not exceeded 24 years in captivity. This study's findings have been published <Ahrestani, F.S., Iyer, S., Heitkönig, I.M.A. & Prins, H.H.T. (2011) Life history traits of gaur Bos gaurus: a first analysis. Mammal Review 41:75-84.>
This project was part of Dr. Ahrestani's PhD research -- Asian Eden: Large herbivore ecology in India -- and was supervised Dr. Ignas M. A. Hetikonig and Dr. Herbert H.T. Prins, Resource Ecology Group, Wageningen University, the Netherlands.