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Turnover and dispersal of prairie falcons in southwestern Idaho Turnover and dispersal of prairie falcons in southwestern Idaho

We studied Prairie Falcon (Falco mexicanus) breeding dispersal, natal dispersal, and turnover at nesting areas in the Snake River Birds of Prey National Conservation Area (NCA) from 1971- 95. Of 61 nesting areas where falcons identified one year were known to be present or absent the following year, 57% had a different falcon. This turnover rate was 2-3 times higher than that reported...
Authors
Robert N. Lehman, Karen Steenhof, L.B. Carpenter, Michael N. Kochert

Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997 Contaminants in ospreys from the Pacific Northwest: II. Organochlorine pesticides, polychlorinated biphenyls and mercury, 1991-1997

Eggs of ospreys (Pandion haliaetus) were collected over the period 1991 to 1997 at 111 nests in the Fraser and Columbia River drainage systems of British Columbia, Washington, and Oregon. Contents were analyzed for organochlorine (OC) pesticides, polychlorinated biphenyls (PCBs), and total mercury. Blood samples were taken from nestling ospreys at two time points during the 1992 breeding...
Authors
J. E. Elliott, M.M. Macmer, L. K. Wilson, Charles J. Henny

Ghosts of habitats past: Contribution of landscape change to current habitats used by shrubland birds Ghosts of habitats past: Contribution of landscape change to current habitats used by shrubland birds

Models of habitat associations for species often are developed with an implicit assumption that habitats are static, even though recent disturbance may have altered the landscape. We tested our hypothesis that trajectory and magnitude of habitat change influenced observed distribution and abundance of passerine birds breeding in shrubsteppe habitats of southwestern Idaho. Birds in this...
Authors
Steven T. Knick, J.T. Rotenberry

Effects of wildfires and military training on raptors Effects of wildfires and military training on raptors

No abstract available.
Authors
K. Steenhof, Michael N. Kochert, L.B. Carpenter, R.N. Lehman, J.M. Marzluff
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