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

Overgrazing is a significant threat to rangeland health, causing extensive damage to ecosystems through the following processes:

• Soil Degradation: Livestock trample vegetation and compact the earth, which hinders root development and destroys the plant structures that bind soil together. This leaves the ground vulnerable to sealing, baking, and erosion. When it rains, water runoff increases because the compacted soil cannot absorb moisture, leading to the formation of rivulets that wash away topsoil.12
• Streams and Waterways: By increasing water runoff and reducing soil infiltration, overgrazing contributes to higher rates of flooding and sedimentation in local water systems.2
• Native Plants: Livestock often consume preferred species, which inhibits their growth by reducing photosynthetic tissue. This grazing pressure gives a competitive advantage to inedible species, such as cacti or mesquite, which can overtake grasslands and prevent native grasses from recolonizing.12
• Wildlife Habitats: The resulting shift in plant community composition and the loss of biodiversity degrade the quality of habitats, making them less capable of supporting native animal populations.12