Cattle, deer, and elk grazing of the invasive plant sulfur cinquefoil

Abstract

The role of ungulates as contributors to establishment and spread of non-native invasive plants in natural areas is not well known. The objectives of this study were to document whether or not sulfur cinquefoil (Potentilia recta L.) is grazed by ungulates and to quantify the effects of ungulate herbivory on the density and demography of sulfur cinquefoil. Despite reports suggesting sulfur cinquefoil is minimally grazed, our results indicate that substantial grazing of sulfur cinquefoil occurs in a northeastern Oregon natural area. As sulfur cinquefoil reproduces only by seed and seeds typically fall within 3 m of a parent plant, grazing by ungulates and subsequent deposition of the seeds by endozoochory may explain the establishment of satellite infestations across susceptible natural areas.

Citation

Parks, Catherine G.; Endress, Bryan A.; Vavra, Martin; McInnis, Michael L.; Naylor, Bridgett J. 2008. Cattle, deer, and elk grazing of the invasive plant sulfur cinquefoil. Natural Areas Journal. 28(4): 404-409.