The grazing effects of donkeys (Equus asinus L.) on degraded forestry areas [Sardinia]

allevamento degli animali animal de travail animal husbandry animales de carne animales de trabajo animali da carne animali da lavoro asini asno asses bosques cap carga ganadera damage danno forest fires forest grazing foreste forests gain de poids ganancia de peso grazing intensity incendi forestali incendios forestales incremento di peso intensidad de pastoreo less favoured areas meat animals organic matter pac pascolamento forestale pastoreo en el bosque pastoreo rotacional quercus riesgo rischio risk risque rotational grazing sardaigne sardegna sardinia silvopastoral systems sistemi silvopastorali sostanza organica stocking density taux de charge weight gain working animals zonas desfavorecidas zone svantaggiate