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Filtering by: Creator Colwell, Frederick Committee Member Anthony, Robert G. Resource Type Dissertation

Comparative wintering ecology of two subspecies of sandhill crane : informing conservation planning in the Sacramento-San Joaquin River Delta region of California

Creator:

Ivey, Gary L.

Abstract:

California's Central Valley agricultural landscapes provide several important wintering regions for Pacific Flyway sandhill crane (Grus canadensis) populations; however, the value of those regions is being compromised by urban expansion, other developments, and conversions to incompatible crop types. Greater (G. c. tabida) and lesser sandhill cranes (G. c. canadensis) both...

Resource Type:

Dissertation

Full Text:

refuging theory (Hamilton and Watt 1970, Stephens and Krebs 1986, Frederick et al. 1987; Belanger and