The primary impact of overgrazing on ecosystems is the degradation of vegetation, leading to soil erosion, reduced fertility, and loss of biodiversity. When livestock graze excessively, they remove crucial plant cover, which can destabilize soil structures and increase susceptibility to wind and water erosion. This can result in desertification or decline in native plant species while providing opportunities for invasive species to establish. Over time, this disrupts ecosystem functioning and may diminish the capacity of the land to support wildlife and provide essential ecosystem services.