Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16756
Efficacy of eastern encephalitis immunization in whooping cranes Efficacy of eastern encephalitis immunization in whooping cranes
An epizootic of eastern equine encephalitis (EEE) at the Patuxent Wildlife Research Center (PWRC), Laurel, Maryland (USA), in 1989 provided an opportunity to determine if EEE immunization protected whooping cranes (Grus americana). Based on seroconversion of 31% of sympatric hatch-year sandhill cranes, Grus canadensis, and a previous 35% case fatality rate in whooping cranes, 17 (37%) of...
Authors
Glenn H. Olsen, M.J. Turell, B.B. Pagac
Watershield use by ring-necked ducks Watershield use by ring-necked ducks
During 1993-94 and 1994-95, the amount of watershield (Brasenia schreberi) in selected Maryland wetlands was determined to see if a relationship existed between the amount of watershield on a wetland and the number of ring-necked ducks (Aythya collaris) observed on that wetland. Data were collected for two years from eight different wetlands on the Patuxent Research Refuge in Laurel...
Authors
J.A. Olsen, Matthew C. Perry
Migration chronology and distribution of redheads on the lower Laguna Madre, Texas Migration chronology and distribution of redheads on the lower Laguna Madre, Texas
An estimated 80% of redheads (Aythya americana) winter on the Laguna Madre of southern Texas and Mexico. Because there have been profound changes in the Laguna Madre over the past three decades and the area is facing increasing industrial and recreational development, we studied the winter distribution and habitat requirements of redheads during two winters (1987-1988 and 1988-1989) on...
Authors
Christine M. Custer, T. W. Custer, P.J. Zwank
A review of factors potentially limiting the growth of American black duck populations A review of factors potentially limiting the growth of American black duck populations
No abstract available.
Authors
M.J. Conroy, D.G. Krementz
An analysis of band recovery distributions from spring and pre-season banding of American Black Ducks An analysis of band recovery distributions from spring and pre-season banding of American Black Ducks
No abstract available.
Authors
S.T. Kelly, J.R. Sauer, Diane S. Chu, G.W. Pendleton
Amphibians and reptiles of the upper Rio Comainas, Cordillera del Condor Amphibians and reptiles of the upper Rio Comainas, Cordillera del Condor
No abstract available.
Authors
R.P. Reynolds, J. Icochea
A spatially-explicit modelling environment for evaluating deer management strategies A spatially-explicit modelling environment for evaluating deer management strategies
No abstract available.
Authors
K.L. Risenhoover, H.B. Underwood, W. Yan, J.L. Cooke
Effects of flooding croplands in winter on water quality in the Mississippi delta Effects of flooding croplands in winter on water quality in the Mississippi delta
No abstract available.
Authors
S.W. Manley, R.M. Kaminski, S.H. Schoenholtz, P. Rodrigue, K. J. Reinecke
Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach
A very thick (> 300 m) nearly continuous Oligocene section exists in southern peninsular Florida, as revealed by lithostratigraphic, biostratigraphic (mollusks and dinocysts), chronostratigraphic (Sr isotopes) and petrographic analyses of twelve cores and two quarries. The Oligocene deposits in the subsurface of southern Florida are the thickest documented in the southeastern U.S., and...
Authors
G. Lynn Wingard, T.M. Scott, Lucy E. Edwards, S.D. Weedman, K. R. Simmons
Continuous monitoring of dissolved oxygen and total dissolved gas pressure based on head-space partial pressures Continuous monitoring of dissolved oxygen and total dissolved gas pressure based on head-space partial pressures
We describe an instrument prototype that measures total dissolved gas pressure (TGP) and dissolved oxygen (DO) without need for standard wetted probe membranes or gas permeable tubing. Measurements were based instead on gas-phase partial pressures that develop within the head-space of a pressure vessel, and on Henry's Law. Performance trials established that differences between standard
Authors
B.J. Watten, D. R. Smith, W. J. Ridge
Studying black bears in the Okefenokee: A "down-on-all-fours" field report Studying black bears in the Okefenokee: A "down-on-all-fours" field report
No abstract available.
Authors
J. D. Clark, D.M. Brandenburg
Prey patchiness and larval fish growth and survival: inferences from an individual-based model Prey patchiness and larval fish growth and survival: inferences from an individual-based model
We used an individual-based simulation model to evaluate how prey patchiness and fish swimming behavior affect larval fish survival and mortality source (predation or starvation). Simulations revealed that cohort survival increased linearly with greater average patch residence times and that patch residence times for individual fish with different fates (survived, starved, eaten)...
Authors
Benjamin H. Letcher, James A. Rice