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Ellicott Slough National Wildlife Refuge is known for the habitat it provides for sensitive amphibian species. There are three federally-listed amphibians that are know to occur on the refuge.
The endangered Santa Cruz Long-toed Salamander is the reason why Ellicott Slough National Wildlife Refuge was created.
Threatened California Tiger Salamanders have similar life histories as the Santa Cruz Long-toed Salamander. They breed and over-summer at the Ellicott Unit of the refuge.
This threatened species spends most of its time in and near sheltered ponds, marshes, springs, streams and reservoirs. The refuge has been designated as one of the recovery units for this species.
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Ellicott Slough NWR is managed as part of the San Francisco Bay National Wildlife Refuge Complex.
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