1. Population and Habitat Objectives for Breeding Shorebirds in California’s Central Valley
- Author
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Strum, Khara M., Dybala, Kristen E., Iglecia, Monica N., and Shuford, W. David
- Subjects
Breeding shorebirds ,Central Valley ,population objective ,habitat objective ,population estimate ,stilt ,avocet ,killdeer - Abstract
The Central Valley of California provides important breeding habitat to numerous species of wetland-dependent birds, despite the loss of over 90% of naturally occurring wetlands. A majority of shorebirds breeding in this region rely on shallow-flooded habitat adjacent to sparsely vegetated uplands as provided by rice (Oryza sativa), managed wetlands, and other habitats. We estimated the current extent of potential breeding shorebird habitat provided by rice and managed permanent and semi-permanent wetlands in each of four major planning regions of the Central Valley, and estimated the average breeding densities and current population sizes of two species of shorebirds: the Black-Necked Stilt (Himantopus mexicanus) and American Avocet (Recurvirostra americana). Using a population status framework based on principles of conservation biology, we estimated that stilt populations are small (
- Published
- 2017