How can overgrazing affect soil, streams, native plants, and wildlife habitats?

Overgrazing is a significant threat to rangeland health, causing extensive damage to essential natural resources. Its impacts include:1

• Soil: Overgrazing exposes soil to sealing, baking, and erosion. Livestock trampling destroys the roots that bind soil together and compacts the earth, which hinders new root development and reduces the soil's ability to infiltrate water.1
• Streams and Water: By reducing water infiltration into the soil, overgrazing increases surface runoff and flooding. Additionally, livestock movement often creates paths that form rivulets, which wash away unprotected topsoil during rain events.1
• Native Plants: Grazing animals can weaken plants by consuming them down to the ground, inhibiting photosynthesis. This pressure often shifts plant community composition, as livestock consume preferred species while leaving inedible ones—such as cacti or certain shrubs—to dominate the landscape.1
• Wildlife Habitats: The resulting degradation contributes to biodiversity loss and desertification. When native vegetation is replaced by persistent thickets or invasive species, the habitat can no longer support the original diversity of native animal populations.12