Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Partial migration and wintering localities of American kestrels nesting in the Pacific northwest Partial migration and wintering localities of American kestrels nesting in the Pacific northwest
Based on banding recoveries, an estimated 89.5% of American kestrels (Falco sparverius) nesting in eastern Oregon, eastern Washington, and Idaho (excluding the Snake River Plain) are migratory and primarily migrate to western Mexico for the winter. Band recoveries from Mexico may be biased; however, we do not know whether the bias is toward more or fewer recoveries. The banding data...
Authors
Charles J. Henny, G.L. Brady
Female feral dog and two pups kill a deer fawn at the Patuxent Wildlife Research Center, Laurel, Maryland Female feral dog and two pups kill a deer fawn at the Patuxent Wildlife Research Center, Laurel, Maryland
No abstract available.
Authors
N.E. Federoff, W.J. Jakob, W.C. Bauer
Determining age and sex of oma o (Myadestes obscurus) Determining age and sex of oma o (Myadestes obscurus)
No abstract available.
Authors
S.G. Fancy, J.D. Jacobi, T.K. Pratt, C.J. Ralph
Sources of variation in loss rates of color bands applied to adult roseate terns (Sterna dougallii) in the western North Atlantic Sources of variation in loss rates of color bands applied to adult roseate terns (Sterna dougallii) in the western North Atlantic
A model-based analysis was done to test several hypotheses concerning the rates of loss of butt-ended color bands placed on adult Roseate Terns (Sterna dougallii) in the western North Atlantic. These birds were captured and color banded from 1987-1991 at four colony sites, and recaptured from 1989-1992 as part of a study of the population dynamics of this species. Two types of color...
Authors
J. A. Spendelow, J. Burger, I.C.T. Nisbet, J.D. Nichols, J.E. Hines, H. Hays, G.D. Cormons, M. Gochfeld
Estimating breeding proportions and testing hypotheses about costs of reproduction with capture-recapture data Estimating breeding proportions and testing hypotheses about costs of reproduction with capture-recapture data
The proportion of animals in a population that breeds is an important determinant of population growth rate. Usual estimates of this quantity from field sampling data assume that the probability of appearing in the capture or count statistic is the same for animals that do and do not breed. A similar assumption is required by most existing methods used to test ecologically interesting...
Authors
James D. Nichols, James E. Hines, Kenneth H. Pollock, Robert L. Hinz, William A. Link
The applicability of terrestrial visitor impact management strategies to the protection of coral reefs The applicability of terrestrial visitor impact management strategies to the protection of coral reefs
A dramatic expansion in nature-based tourism to tropical coastal destinations has occurred in the past 20 years. Tourism development, combined with intense recreational pressures, has irreversibly transformed and degraded many popular scenic natural environments. This paper examines the management of recreational impacts to coral reefs using Virgin Islands National Park as a case study...
Authors
J. L. Marion, C.S. Rogers
Interactions of white-tailed deer and vegetation at Saratogo National Historical Park Interactions of white-tailed deer and vegetation at Saratogo National Historical Park
No abstract available.
Authors
H.B. Underwood, K.A. Austin, W.F. Porter, R.L. Burgess, R.W. Sage
Keys to a successful project: associated data and planning. Voucher specimens Keys to a successful project: associated data and planning. Voucher specimens
No abstract available.
Authors
R.P. Reynolds, R.I. Crombie, R.W. McDiarmid
Supplemental approaches to studying amphibian biodiversity: Geographic information systems. Manual GIS application for habitat specialists Supplemental approaches to studying amphibian biodiversity: Geographic information systems. Manual GIS application for habitat specialists
No abstract available.
Authors
J.E. Juterbock, S.S. Sweet, R.W. McDiarmid
Commonly encountered hatching problems Commonly encountered hatching problems
No abstract available.
Authors
Glenn H. Olsen, F. Duvall
Latin American research libraries in natural history: a survey Latin American research libraries in natural history: a survey
No abstract available.
Authors
N. Woodman, M.A. Jenkinson, M.S. Foster
Effect of subatmospheric pressure on the performance of an automated packed-column nitrogen desorption system Effect of subatmospheric pressure on the performance of an automated packed-column nitrogen desorption system
A portable vacuum degasser was developed to satisfy seasonal hatchery pretreatment needs. Dissolved-gas pressures in water exiting a packed column were regulated automatically with a unique feedback control loop incorporating a gasometer, pressure transducer, electronic (PID) controller and an electrically actuated pump discharge valve. The flow capacity of the system was 160 l/min with...
Authors
Barnaby J. Watten, W. J. Ridge, Vincent A. Mudrak