Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Woodcock response to habitat management in Maine
A study was initiated in 1975 at the Moosehorn National Wildlife Refuge to develop habitat management techniques for woodcock (Philohela minor) that could be used by small landowners as well as in commercial forestry operations. Use of selected diurnal covers by adult female and juvenile woodcock increased after strips were clearcut through these covers. Woodcock use of clearcut strips for feedi
Authors
G.F. Sepik, T.J. Dwyer
Modern pesticides and bobwhite populations
Bobwhite (Colinus virginianus) are frequently used as test animals for wildlife tests of pesticides. The organophosphate and carbamate pesticides that have replaced the organochlorines have many desirable properties, but they span a wide range of acute toxicities and some of them affe,ct survival, reproduction, food consumption, behavior, and nervous system enzymes in laboratory tests. Applying th
Authors
K. L. Stromborg
Gentle release of captive, parent-reared Mississippi sandhill cranes into the wild
No abstract available.
Authors
P.J. Zwank, S.R. Derrickson
Whooping crane production at the Patuxent Wildlife Research Center, 1967-1981
No abstract available.
Authors
S.R. Derrickson, J. W. Carpenter
Hormonal treatment and flight feather molt in immature Sandhill Cranes
Molt, the production of a new generation of feathers, is a poorly understood physiological phenomenon in nondomestic birds. Often in large birds like geese, flight is restricted by clipping the primary remiges on 1 wing and flight is restored after the molt when the primaries are replaced. A similar technique would be desirable for use with cranes conditioned for release to the native habitat. How
Authors
G.F. Gee
Whooping crane mortality at the Patuxent Wildlife Research Center, 1966-1981
No abstract available.
Authors
J. W. Carpenter, S.R. Derrickson
Subacute dietary toxicities of dicrotophos and dieldrin in time-replicated trials with young ring-necked pheasants and mallards
The dietary toxicities of (E)-phosphoric acid 3-(dimethylamino)-1-methyl-3-oxo-1-propenyl dimethyl ester (dicrotophos) and 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth[2,3-b]oxirene (dieldrin) to 10-day-old ring-necked pheasants (Phasianus colchicus) and 5-day-old mallards (Anas platyrhynchos) were compared in five time-replicated trials. Toxicities were calculated
Authors
E. F. Hill
Subacute toxicity testing with young birds: Response in relation to age and intertest variability of LC50 estimates
The variability in toxic response of Japanese quail (Coturnix coturnix japonica) to a standardized 5-day subacute feeding trial was studied while age was increased at weekly intervals from 1 to 21 days and at different times with 14-day-old birds. The objectives were to identify the strengths and limitations of this subacute toxicity protocol and to provide possible explanations for differences in
Authors
E. F. Hill, M.B. Camardese
Wildlife and wildlife habitat of American Samoa
No abstract available.
Computer applications to collection management in herpetology and ichthyology: a survey and report submitted to the National Science Foundation (NSF) and supported by the Biological Research Resources Program of NSF
No abstract available.
Authors
A.E. Leviton, R.H. Gibbs, R.K. Johnson, R.W. McDiarmid