​Species At Risk

Indicators of Ecosystem Health
The presence—and decline—of certain species tells the story of ecosystem health.
​
These species depend on connected, intact habitats, making them key indicators of corridor function.

American Badger
Keystone Grassland Species

• Creates habitat for other species through burrowing
• Requires large, undisturbed grassland areas
• Highly vulnerable to habitat fragmentation

Elk
Migration Corridor Indicator

• Seasonal movement between habitats
• Requires continuous, connected landscapes
• Sensitive to barriers such as roads and development

California Bighorn Sheep
Habitat Connectivity Indicator

• Dependent on open grasslands and escape terrain
• Movement between habitat patches is essential for survival
• Fragmentation increases population risk

Protecting these species means protecting the broader ecosystem that supports them—and ensuring long-term
ecological balance.

​