Pflanzenselektion durch freilebende Rinder in südbolivianischenBergwäldern

TL;DRAbstract

The aim of the present research was to study the plant species selected by freeranging cattle in southern Bolivian subtropical mountain forests. The cattle were followed from May to November 2005 during 4-5 days/month in two study sites. The number of bites on the different plant species were recorded every 6 min. during 1 min. of actual observation. Additionally, plant availability was measured. The selection and availability data were ranked, giving rank number 1 to the most frequently selected plant species. Basing on this ranking system, species were categorized into four categories. Overall, 447 plant species were found in the study sites, whereof 364 were observed to be selected by the cattle. A low number of species (15, including indetermined leaf litter) made up the major part of plant selection (about 60%) and were classified as “main forage plants”, with the grass Ichnanthus pallens being the most selected plant species. Sixteen species were classified as “preferr

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