Book Chapters
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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A review of organochlorine pesticide residues in Swainson's hawk eggs
U. s. Fish and Wildlife Service research projects during the last 10 years in the Pacific Northwest resulted in the collecting of a sample egg from 35 Swainson's Hawk nests (Henny and Kaiser, 1979. Murrelet 60:2-5; Henny et al. 1984. Raptor Research 18:41-48). Pesticide residues, eggshell thickness, and reproductive success from these nests will be reviewed. In addition, egg residues from other p
Authors
C. J. Henny
Alaska peregrine falcon productivity in 1984 and the role of organochlorine residues
Twenty Peregrine Falcon (Falco peregrinus) eggs (one per eyrie) were collected at random in Alaska in 1984 for organochlorine residue analysis. Prior to this study we had obtained only addled eggs which were possibly not representative of the egg-laying population if addled eggs contained different levels of organochlorines than viable eggs that hatched. Ten eggs were collected from the American (
Authors
Robert E. Ambrose, C. J. Henny, R. E. Hunter
An assessment of the current status of native upland habitats and associated endangered species on the island of Hawaii
No abstract available.
Authors
J.D. Jacobi, J. M. Scott
An overview of raptor biology and conservation in Latin America
Prior to the last decade, biological studies of raptorial birds in Latin America were, with a few exceptions, nonexistent. For many species all that was known was the general range and habitat type. While the logistical and political challenges are still present, the last few years has seen the opening of a door to what will almost surely be a flood of scientific investigations. From over 40,000 g
Authors
D. H. Ellis
Analysis of survival data from telemetry projects
Telemetry techniques can be used to study the survival rates of animal populations and are particularly suitable for species or settings for which band recovery models are not. Statistical methods for estimating survival rates and parameters of survival distributions from observations of radio-tagged animals will be described. These methods have been applied to medical and engineering studies and
Authors
C. M. Bunck, S.R. Winterstein, K. H. Pollock
California condor (Gymnogyps californianus) breeding biology
No abstract available.
Authors
N.F.R. Snyder
Captive breeding and management of black-footed ferrets
No abstract available.
Authors
J. W. Carpenter
Case histories of organophosphate pesticides killing birds of prey in the United States
Since 1982 when secondary. poisoning of Red-tailed Hawks (Buteo jamaicensis) was documented following the recommended use of famphur on cattle, the Patuxent Wildlife Research Center has tested for organophosphate (OP) poisoning in selected birds of prey found dead. This report documents the circumstances for a number of. cases where birds of prey were killed by OP pesticides in the United States.
Authors
C. J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Characteristics of the migration of peregrine falcons at Assateague Island, 1970-1984
No abstract available.
Authors
F.P. Ward, W.S. Seegar, M. Yates, K. Titus, M.R. Fuller