Group size effect on vigilance: Evidence from Tibetan gazelle in Upper Buha River, Qinghai-Tibet Plateau

TibetangazelleProcapra picticaudata is a threatened and endemic species to the Qinghai-TibetPlateau. With the method of group scan sampling, we observed the behaviours of males and females of the gazelle in the two summers of 2005 and 2006, in order to test the groupsizeeffect on group vigilance. We found that male gazelles were significantly more vigilant […]