The Western Snowy Plover (Charadrius alexandrinus nivosus) is a federally listed threatened species as well as a state listed “species of special concern” in California. Accurate survival estimates are required to determine the best conservation strat . . .

I examined the effect of forest buffer width and nest site characteristics on the nest survival of forest birds on Prince of Wales Island, Alaska. During 2002 and 2003, a total of 164 nests of three closed cup (Chestnut-backed Chickadee (Parus rufesce . . .

Conservation of a keystone species requires knowledge of habitat use across the species’ range. The factors that influence habitat selection by Red-breasted Sapsucker (Sphyrapicus ruber) in the temperate rainforests of southeast Alaska are poorly unde . . .

Black brant (Branta bernicla nigricans) breed in the Arctic and sub-Arctic in spring, a time when food resources are limited. They rely largely on energy stores, acquired at staging sites, for migration and to support egg laying and incubation. In Cal . . .

Baseline levels of stress hormones are necessary for maintaining physical homeostasis in mammals. Excessive amounts of stress, however, can cause serious pathologies. Chronic effects of stress include increased susceptibility to infectious diseases du . . .

Ecosystem services provided by mobile organisms are influenced by the availability of the habitats those organisms select. On Jamaica’s coffee farms, birds serve as agents of biological control of the coffee berry borer (Hypothenemus hampei), coffee’s . . .

The great gray owl (Strix nebulosa) has been a state endangered species in California since 1980 because of low population size. Annual productivity of the great gray owl in California is thought to be largely dependent on vole (Microtus spp.) and poc . . .

I examined evidence that conspecific attraction influenced the spatial distributions of Western Snowy Plovers (Charadrius alexandrinus nivosus) breeding in coastal northern California over 6 years. Most (85%) yearlings and immigrants first nested in t . . .

Borrelia burgdorferi (Lyme disease) and Anaplasma phagocytophilum (granulocytic anaplasmosis) are two tick-borne pathogens in the western United States. The ecology of both pathogens varies among areas in northwestern California due to multiple rodent . . .

Previous research suggests that Varied thrushes (Ixoreus naevius) in redwood forests (Sequoia sempervirens) are sensitive to forest edges and are unlikely to breed in small forest fragments. Food abundance is likely to vary at the forest edge, and has . . .