Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16759
Randomization and sampling issues Randomization and sampling issues
The need for randomly selected routes and other sampling issues have been debated by the Amphibian electronic discussion group. Many excellent comments have been made, pro and con, but we have not reached consensus yet. This paper brings those comments together and attempts a synthesis. I hope that the resulting discussion will bring us closer to a consensus.
Authors
P.H. Geissler
Northern waterthrush, Seiurus noveboracensis Northern waterthrush, Seiurus noveboracensis
No abstract available.
Authors
C.S. Robbins
Blackburnian warbler, Dendroica fusca Blackburnian warbler, Dendroica fusca
No abstract available.
Authors
C.S. Robbins
Black-throated green warbler, Dendroica virens Black-throated green warbler, Dendroica virens
No abstract available.
Authors
C.S. Robbins
Northern parula, Parula americana Northern parula, Parula americana
No abstract available.
Authors
M. K. Klimkiewicz
Common nighthawk, Chordeiles minor Common nighthawk, Chordeiles minor
No abstract available.
Authors
J.R. Sauer
Rose-breasted grosbeak, Pheucticus ludovicianus Rose-breasted grosbeak, Pheucticus ludovicianus
No abstract available.
Authors
B.A. Dowell
Purple martin, Progne subis Purple martin, Progne subis
No abstract available.
Authors
M. K. Klimkiewicz
Dedication [to Lucille F. and William H. Stickel] Dedication [to Lucille F. and William H. Stickel]
No abstract available.
Authors
D.L. Trauger
Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania
In 1991, 99 of the 102 coal mines in the anthracite coal fields of Pennsylvania that discharged 1.0 cubic foot per second or more when water-quality samples were collected in 1975 were revisited. Water was not discharging from 15 of these 99 mines in 1991. Discharge, water temperature, specific conductance, pH, dissolved oxygen, sulfate, iron, manganese, alkalinity, and acidity were...
Authors
C. R. Wood
Factors affecting phosphorus transport at a conventionally-farmed site in Lancaster County, Pennsylvania, 1992-95 Factors affecting phosphorus transport at a conventionally-farmed site in Lancaster County, Pennsylvania, 1992-95
The U.S. Geological Survey and the Bureau of Land and Water Conservation of the Pennsylvania Department of Environmental Protection conducted a cooperative study to determine the effects of manure application and antecedent soil-phosphorus concentrations on the transport of phosphorus from the soil of a typical farm site in Lancaster County, Pa., from September 1992 to March 1995. The...
Authors
Daniel G. Galeone