The Purpose Of This Contract Is To Carry Out A Study To Evaluate The Impact Of Pasture On The Populations Of Prunus Prostrata And, In Addition, Collect Data On Erodium Foetidum Subsp. Celtibericum In La Mola De Colldejou, In The Enp Of The Sierra De Llaberia. The Evaluation Will Be Carried Out By Implementing An Exclusion Experiment That Prevents Herbivores Access, Especially Domestic Goat Herds, To The Aforementioned Plant Populations.