Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Borehole geophysical logging for water-resources investigations in Pennsylvania Borehole geophysical logging for water-resources investigations in Pennsylvania
Borehole geophysical logging is a procedure to collect and transmit specific information about the geologic formations penetrated by a well by raising and lowering a set of probes or sondes that contain water-tight instruments in the well. The data collected can be used to determine general formation geology, fracture distribution, vertical borehole flow, and water-yielding capabilities.
Authors
Randall W. Conger
Toxicity and oxidative stress of different forms of organic selenium and dietary protein in mallard ducklings Toxicity and oxidative stress of different forms of organic selenium and dietary protein in mallard ducklings
Concentrations of over 100 ppm (mg/kg) selenium (Se) have been found in aquatic plants and insects associated with irrigation drainwater and toxicity to fish and wildlife. Composition of diet for wild ducklings can vary in selenium-contaminated environments. Earlier studies have compared toxicities and oxidative stress of Se as selenite to those of seleno-DL-methionine (DL) in mallards...
Authors
D. J. Hoffman, G. H. Heinz, L. J. LeCaptain, J.D. Eisemann, G.W. Pendleton
Great blue heron electrocution in Loudoun County, Virginia Great blue heron electrocution in Loudoun County, Virginia
No abstract available.
Authors
R. B. Clapp
Forword Forword
(excerpt from Forword) The Mediterranean Symposium, part of the annual conference of The Colonial Waterbird Society in October 1993 in Arles, France, was the successful culmination of ideas shared among leading European waterbird and wetland scientists... Both invited and contributed papers focused on two areas - breeding biology (especially of threatened or little known species), and...
Authors
R.M. Erwin
Conclusions and recommendations of the workshop: 'Management and wise use' Conclusions and recommendations of the workshop: 'Management and wise use'
No abstract available.
Authors
J.D. Nichols, J. Trouvilliez
Bobolink, Dolichonyx oryzivorus Bobolink, Dolichonyx oryzivorus
No abstract available.
Authors
B.A. Dowell
Techniques for estimating abundance and species richness: Estimation of mammal abundance. Introduction Techniques for estimating abundance and species richness: Estimation of mammal abundance. Introduction
No abstract available.
Authors
J.D. Nichols, M.J. Conroy