Publications
The USGS publishes peer-reviewed reports and journal articles which are used by Chesapeake Bay Program resource managers and policy makers to make science-based decisions for ecosystem conservation and restoration. Use the Search box below to find publications on selected topics.
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Filter Total Items: 942
The breeding bird atlas of Montgomery and Howard Counties, Maryland The breeding bird atlas of Montgomery and Howard Counties, Maryland
A pilot Breeding Bird Atlas was initiated during 1971 in Montgomery County. A second atlas was begun during 1973 in Howard County. The Montgomery project was completed in 1973 and the Howard project in 1975......A total of 138 species were recorded for the two counties (129 confirmed, 7 probable, 2 possible). Montgomery County had 135 species recorded (122 confirmed, 9 probable, 4...
Authors
M. K. Klimkiewicz, J.K. Solem
Organochlorine residues and reproduction in the little brown bat, Laurel, Maryland - June 1976 Organochlorine residues and reproduction in the little brown bat, Laurel, Maryland - June 1976
Twelve of 43 pregnant little brown bats (Myotis lucifugus) collected at Montpelier Barn, Laurel, Maryland, gave birth to dead young. Eleven of these 12 dead neonates were abnormally small. Most of the stillbirths were attributable to unknown reproductive difficulties associated with first pregnancies, but four may have been due to high concentrations of polychlorinated biphenyls (PCB) in...
Authors
D. R. Clark, A. J. Krynitsky
Exceedance probability-depth relationships of floods for Maryland streams west of Chesapeake Bay Exceedance probability-depth relationships of floods for Maryland streams west of Chesapeake Bay
A procedure is outlined for estimating the depths of floods of specified exceedance probabilities for Maryland streams west of the Chesapeake Bay. Data required for use of the estimating procedure are the stream's location in one of three flood-depth regions and the drainage area. Regression equations developed for depth estimation of the 50-, 20-, 10-, 2-, and 1-percent floods have...
Authors
William J. Herb
Summary of available information on Chesapeake Bay submerged vegetation Summary of available information on Chesapeake Bay submerged vegetation
No abstract available.
Authors
J. Court Stevenson, Nedra M. Confer
A pollution history of Chesapeake Bay A pollution history of Chesapeake Bay
Present day anthropogenic fluxes of some heavy metals to central Chesapeake Bay appear to be intermediate to those of the southern California coastal region and those of Narragansett Bay. The natural fluxes, however, are in general higher. On the bases of Pb-210 and Pu-239 + 240 geochronologies and of the time changes in interstitial water compositions, there is a mixing of the upper 30...
Authors
E.D. Goldberg, V. Hodge, M. Koide, J. Griffin, E. Gamble, O.P. Bricker, G. Matisoff, G.R. Holdren, R. Braun
The seventy-eighth Audubon Christmas bird count. 371. Southern Dorchester County, Md The seventy-eighth Audubon Christmas bird count. 371. Southern Dorchester County, Md
No abstract available.
Authors
C.S. Robbins
Notes on Landsat Image Map Chesapeake Bay and vicinity, winter 1976-1977 (EC 63 Landsat) Notes on Landsat Image Map Chesapeake Bay and vicinity, winter 1976-1977 (EC 63 Landsat)
No abstract available.
Authors
Alden P. Colvocoresses
Organochlorine residues, eggshell thickness, and nest success in barn owls from the Chesapeake Bay Organochlorine residues, eggshell thickness, and nest success in barn owls from the Chesapeake Bay
Eggs of barn owls (Tyto alba) were collected from 18 nests in offshore duck blinds on the Maryland side of the lower Potomac River estuary in 1972 and 1973 and analyzed for organochlorine residues. DDE was found in 100% of the clutches, PCBs in 89%, and dieldrin in 78%. Eggshell thickness was inversely correlated with concentrations of DDE, DDD, and dieldrin residues. Six of the 18...
Authors
Erwin E. Klaas, Stanley N. Wiemeyer, H. M. Ohlendorf, D. M. Swineford