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Landscape associations of frog and toad species in Iowa and Wisconsin, U.S.A Landscape associations of frog and toad species in Iowa and Wisconsin, U.S.A

Landscape habitat associations of frogs and toads in Iowa and Wisconsin were tested to determine whether they support or refute previous general habitat classifications. We examined which Midwestern species shared similar habitats to see if these associations were consistent across large geographic areas (states). Rana sylvatica (wood frog), Hyla versicolor (eastern gray treefrog)...
Authors
M. G. Knutson, J.R. Sauer, D.A. Olsen, M.J. Mossman, L.M. Hemesath, M.J. Lannoo

North American Bird Conservation Initiative: Bringing it all together North American Bird Conservation Initiative: Bringing it all together

No abstract available.
Authors
J. R. Clark, D. Waller, J.A. Kushlan, G.T. Myers, S. Senner, S. Yaich, G. Vandel, G. Fenwick, V. Mezainis, R.D. Sparrowe, A. Wentz, D. Pashley

Bioassessment of Hollis Creek, Oktibbeha County, Mississippi Bioassessment of Hollis Creek, Oktibbeha County, Mississippi

Physical, chemical and biological components at five stations on Hollis Creek, Oktibbeha County, Mississippi were evaluated using Rapid Bioassessment Protocols (RBP) and the Sediment Quality Triad (SQT) on August 24-26, 1999, in order to assess potential biological impacts from the Starkville Waste Water Treatment Facility (WWTF) on downstream resources. Two stations were selected above...
Authors
P. V. Winger, P. J. Lasier, K. J. Bogenrieder

Hydrologic aspects of the 1998-99 drought in the Delaware River basin Hydrologic aspects of the 1998-99 drought in the Delaware River basin

A notable drought in the Delaware River Basin during late 1998 and most of 1999 had a major effect on surface and subsurface components of the hydrologic system. The drought conditions resulted from anomalous patterns in the general atmospheric circulation that diverted Gulf and subtropical Atlantic moisture away from the basin. From September 1998 to August 1999, the accumulated...
Authors
Gary N. Paulachok, Bruce E. Krejmas, Heidi L. Soden

Evaluation of geophysical logs, Phase II, November 1998 to May 1999, at Crossley Farms Superfund Site, Berks County, Pennsylvania Evaluation of geophysical logs, Phase II, November 1998 to May 1999, at Crossley Farms Superfund Site, Berks County, Pennsylvania

Between November 1998 and May 1999, geophysical logging was conducted in 29 boreholes at the Crossley Farms Superfund Site, Hereford Township, Berks County, Pa., to determine the fluidproducing zones, fluid-receiving zones, zones of vertical borehole flow, and casing depth. The wells range in depth from 96 to 500 feet below land surface. Gamma logs only were collected in three bedrock...
Authors
Randall W. Conger

Climatic variability in the eastern United States over the past millennium from Chesapeake Bay sediments Climatic variability in the eastern United States over the past millennium from Chesapeake Bay sediments

Salinity oscillations caused by multidecadal climatic variability had major impacts on the Chesapeake Bay estuarine ecosystem during the past 1000 yr. Microfossils from sediments dated by radiometry (14C, 137Cs, 210Pb) and pollen stratigraphy indicate that salinity in mesohaline regions oscillated 10-15 ppt during periods of extreme drought (low fresh-water discharge) and wet climate...
Authors
Thomas M. Cronin, Debra A. Willard, A. Karlsen, S. Ishman, S. Verardo, John McGeehin, R. Kerhin, C. Holmes, S. Colman, A. Zimmerman
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