Tail hairs reveal dietary choices of three horse species in the Gobi Desert
Przewalski’s horse, a species of wild horse that has been successfully reintroduced to the Gobi Desert, shares its pasture grounds with wild asses and free-roaming domestic horses. A scarce supply of food could lead to food competition among the different species. Researchers from Vetmeduni Vienna therefore chemically analysed the tail hairs of the animals to determine the seasonal dietary habits. While the wild ass switches from being a grazer in the summer to also browse in the winter, the wild and domestic horses eat exclusively grass all year round. In the lean winter months, this leads to increased food competition between wild and domestic horses. Journal of Applied Ecology. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
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