Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16782
Effect of forest fragmentation on breeding bird populations in the Piedmont of the mid-Atlantic region
No abstract available.
Authors
C.S. Robbins
Techniques and results of nongame bird monitoring in North America
Long-term bird population trends based on accumulated ratios (proportional change) sometimes give a very misleading view of population change. Alternate methods of representing population change, based on the weighted means for the individual years, avoid the dangers of using ratios. Some advantages and disadvantages of various weighting techniques are discussed.
Authors
C.S. Robbins, D. Bystrak, P.H. Geissler
Making the most of radio tracking--a summary of wolf studies in northeastern Minnesota
No abstract available.
Authors
L. D. Mech
Proceedings Fifth International Bat Research Conference
No abstract available.
Storm-induced debris avalanching and related phenomena in the Johnstown area, Pennsylvania, with references to other studies in the Appalachians
No abstract available.
Authors
John S. Pomeroy
Shorter contributions to geophysics, 1979
No abstract available.
Authors
Alfred H. Woodcock, Irving Friedman, Gordon Robert Johnson, K. G. Books, D. L. Daniels, W. E. Huff, Peter Popenoe, Joseph S. Duval, K. A. Schulz
Estimating the costs of landslide damage in the United States
Landslide damages are one of the most costly natural disasters in the United States. A recent estimate of the total annual cost of landslide damage is in excess of $1 billion {Schuster, 1978}. The damages can be significantly reduced, however, through the combined action of technical experts, government, and the public.
Before they can be expected to take action, local governments need to have
Authors
Robert W. Fleming, Fred A. Taylor
Suspended-sediment discharge in five streams near Harrisburg, Pennsylvania, before, during, and after highway construction
Rainfall, streamflow, sediment, and turbidity data were collected as part of a study to evaluate the effects of highway construction on suspended-sediment discharges in streams. The study was also designed to evaluate the effectiveness of different erosion-control measures in reducing sediment discharge. Although highway construction increased suspended-sediment discharges from two to four-fold, t
Authors
Lloyd A. Reed
Atlantic Flyway review: Region V: Laurel, Prince Georges County, MD (390-0765)
Despite a 22% increase in net-hours, the number of new birds banded dropped 26% from 1977. The decrease was noted in each month and was spread among all of the commonest species, including summer residents, winter residents, permanent residents, and transients. The greatest declines were in Scarlet Tanager (84%), Blue Jay (78%), Red-eyed Vireo (67%), Gray Catbird (62%), Ruby-crowned Kinglet (60%},
Authors
Chandler S. Robbins
Evolution of the continental margin of southern Spain and the Alboran Sea
Seismic reflection profiles and magnetic intensity measurements were collected across the southern continental margin of Spain and the Alboran basin between Spain and Africa. Correlation of the distinct seismic stratigraphy observed in the profiles to stratigraphic information obtained from cores at Deep Sea Drilling Project site 121 allows effective dating of tectonic events. The Alboran Sea basi
Authors
William P. Dillon, James M. Robb, H. Gary Greene, Juan Carlos Lucena
Flood magnitude and frequency of small streams in Indiana: Preliminary estimating equations
This interim report presents preliminary estimating equations developed for the ongoing study, "Flood Frequency of Small Streams in Indiana." The equations were developed by the multiple-regression technique from data collected at 57 crest-stage-gage and 15 rainfall-runoff sites in the study and from 133 streamflow stations in Indiana and 11 in eastern Illinois. Peak discharge was used as the depe
Authors
Robert L. Gold