Waterfowl Population Sites
This indicator measures the protection of waterfowl population sites such as marshes in the Tahoe Region. These sites support waterfowl species such as those in the Anatidae (i.e., ducks and geese), Ardeidae (e.g., herons), and Sternidae (i.e., terns) families, as well as water birds such as the eared grebe, marsh wren, and Virginia rail. The Tahoe Region supports breeding waterfowl, serves as a stopover for waterfowl migrating along the Pacific Flyway, and is an important component of functioning wetland ecosystems. Waterfowl sites in the Tahoe Region are mostly impacted by recreation. Regional programs that protect marshes and wetlands from being developed and reduce recreation impacts aim to protect waterfowl population sites. TRPA monitors waterfowl population sites by analyzing the development and human activity impacts.
Status
Average "Human Disturbance Ratings" of 18 mapped waterfowl population sites. Sites are ranked from one to four, with one being the least disturbed and four being the most disturbed. A higher score represents higher human activity levels.
Evaluation Map
A map showing the the locations of TRPA-designated waterfowl population sites around the Tahoe Basin.
2019 Evaluation
- Status
- At or Somewhat Better Than Target
- Trend
- Insufficient Data to Determine Trend
- Confidence
- Low
Applicable Standard
W7: Provide a minimum of 18 Waterfowl population sites.
W14: Provide disturbance zones and influence zones areas for Waterfowl.
Key Points
- Eighteen designated waterfowl sites are mapped and none have been altered by development.
- Increases in recreation impacts are leading to greater disturbances at waterfowl sites. Several agencies have completed projects to reduce impacts from recreation through fencing and seasonal closures.
- The disturbance zone standard for waterfowl sites has been implemented by TRPA and other partner agencies.
Delivering and Measuring Success
EIP Action Priorities
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Restore Priority Meadows, Wetlands, and Lake Tahoe Tributaries
EIP partners are working together to restore several high priority watersheds in the Basin that provide valuable ecosystem service.
EIP Indicators
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Acres of SEZ Restored or Enhanced
EIP partners have collectively restored or enhanced 1,743 acres of wetlands since 1997.
Example EIP Projects
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Upper Truckee River and Marsh Restoration
This project will restore and enhance over 250 acres of floodplain by returning river flows to the center of the marsh. Returning river flows to the marsh will enrich native fish and bird habitat.
Monitoring Programs