Publications
Connecting Conservation Practices to Local Stream Health in the Chesapeake Bay Watershed
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: 903
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 possible) and Ho
Authors
M. K. Klimkiewicz, J.K. Solem
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 clutches had me
Authors
E. E. Klaas, Stanley N. Wiemeyer, H. M. Ohlendorf, D. M. Swineford
The seventy-eighth Audubon Christmas bird count. Delaware, Maryland, D.C., Virginia
No abstract available.
Authors
D. Bystrak
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 the newbo
Authors
D. R. Clark, A. J. Krynitsky
[Book review] A Guide to Bird Finding East of the Mississippi (2nd edition), by Olin Sewall Pettingill, Jr
No abstract available.
Authors
P.W. Sykes
The seventy-eighth Audubon Christmas bird count. 371. Southern Dorchester County, Md
No abstract available.
Authors
C.S. Robbins
The seventy-eighth Audubon Christmas bird count. 365. Ocean City, Md
No abstract available.
Authors
C.S. Robbins
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 or so cent
Authors
E.D. Goldberg, V. Hodge, M. Koide, J. Griffin, E. Gamble, O.P. Bricker, G. Matisoff, G.R. Holdren, R. Braun
Changes in submerged aquatic macrophyte populations at the head of Chesapeake Bay, 1958-1975
Submerged aquatic plant populations in the Susquehanna Flats of the Chesapeake Bay were followed for 18 years. An exotic species, eurasian water milfoil, Myriophyllum spicatum, increased dramatically from 1958 to 1962; at the same time the dominant native species declined. After 1962, milfoil populations declined and the native rooted aquatics gradually began to return to their former levels. In t
Authors
S. Bayley, Vernon D. Stotts, P. F. Springer, J. Steenis
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 standard error
Authors
William J. Herb
Notes on Landsat Image Map Chesapeake Bay and vicinity, winter 1976-1977 (EC 63 Landsat)
No abstract available.
Authors
Alden P. Colvocoresses