EXTIRPATED

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Extirpated Species A number of plants and animals that were once native to Grand Canyon can no longer be found within its' boundaries. Native plants and animals that are no longer present in a place that was once their home are called extirpated species. The Glen Canyon Dam Adaptive Management Program has a goal to restore populations of extirpated species, to the extent feasible and advisable. Desired Future Condition for Extirpated Species Re-establish fishes extirpated from Grand Canyon, where feasible and consistent with recovery goals for humpback chub and the recovery goals of those extirpated fishes.

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Updates Colorado Pikeminnow Bonytail Chub Roundtail Chub Lowland Leopard Frog Northern Leopard Frog Southwestern Willow Flycatcher Audio Script A Satellite Model of Southwestern Willow Flycatcher (Empidonax traillii extimus) Breeding Habitat and a Simulation of Potential Effects of Tamarisk Leaf Beetles (Diorhabda spp.), Southwestern United States Western Yellow-billed Cuckoo Plains Gray Wolf Colorado River Otter Audio Script Extirpated Species- Archieve

Links USGS Extirpated Species -GCMRC Presentations and Papers AMP Goal 3: Assessing Restoration Potential of Taxa of Management Concern in the Colorado River Ecosystem Downstream from Glen Canyon Dam PPT Goal 3, Extirpated Species Ad Hoc Group Report Grand Canyon Wildlands Council White Paper: Extirpated Species in the Colorado River Ecosystem March 25, 2009. The Status, Ecological Role, and Potential for Reintroduction of Species Extirpated from the Colorado River Ecosystem, Glen and Grand Canyons, Arizona Other Stuff The 2009 park profile for Grand Canyon National Park prepared by the National Park Service lists the following species as extirpated: grizzly bear, black-footed ferret, gray wolf, jaguar, Bear Valley sandwort, Colorado pikeminnow, bonytail, roundtail chub, and northern leopard frog. The CFMP-EA does not propose management actions to reintroduce extirpated species to the project area; however, reintroduction feasibility studies conducted over the life of the plan would undergo subsequest NEPA analysis. (NPS CFMP-EA_pg59) How close is close enough for gray wolf recovery? It's Interior's call Colorado River Toad Page