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Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

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January 1, 1998

Wetland birds in the northern Great Plains Wetland birds in the northern Great Plains

When the Wisconsin glacier retreated about 10,000 years ago, it left innumerable depressions scattered throughout the northern Great Plains. These depressional wetlands, called prairie potholes, contain water for various lengths of time in most years (Kantrud et al. 1989). Their size, permanence, hydrology, water chemistry, plant associations, and invertebrate communities vary widely...

Authors

Lawrence D. Igl, Douglas H. Johnson

Ecosystems Mission Area, Northern Prairie Wildlife Research Center

January 1, 1998

Wetland habitats for wildlife of the Chesapeake Bay Wetland habitats for wildlife of the Chesapeake Bay

The wetlands of Chesapeake Bay have provided the vital habitats that have sustained the impressive wildlife populations that have brought international fame to the Bay. As these wetland habitats decrease in quantity and quality we will continue to see the decline in the wildlife populations that started when European settlers first came to this continent. These declines have accelerated

Authors

Matthew C. Perry

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

December 31, 1997

The frequency and intensity of Atlantic hurricanes and their influence on the structure of south Florida mangrove communities The frequency and intensity of Atlantic hurricanes and their influence on the structure of south Florida mangrove communities

Hurricanes are formidable forces that wreak havoc on society and nature alike. Mangrove ecosystems are especially vulnerable because they thrive in the intertidal zone of tropical regions where hurricanes originate and are most frequent. Because mangroves are found at the land-sea interface where hurricanes are often most intense, these coastal forests are subject to damage from both...

Authors

Thomas W. Doyle, Garrett F. Girod

Ecosystems Mission Area, Wetland and Aquatic Research Center

December 31, 1997

Alternative silvicultural approaches to timber harvesting: Variable retention harvest systems Alternative silvicultural approaches to timber harvesting: Variable retention harvest systems

No abstract available.

Authors

J.F. Franklin, D.F. Berg, D. Thornburg, J. C. Tappeiner

Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

December 31, 1997

Integrated sampling for amphibian communities in montane habitats Integrated sampling for amphibian communities in montane habitats

No abstract available.

Authors

R.B. Bury, D.J. Major

Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

December 31, 1997

Morphology and stratal geometry of the Antarctic continental shelf: Insights from models Morphology and stratal geometry of the Antarctic continental shelf: Insights from models

Reconstruction of past ice-sheet fluctuations from the stratigraphy of glaciated continental shelves requires understanding of the relationships among the stratal geometry, glacial and marine sedimentary processes, and ice dynamics. We investigate the formation of the morphology and the broad stratal geometry of topsets on the Antarctic continental shelf with numerical models. Our models...

Authors

Alan K. Cooper, Peter F. Barker, Giuliano Brancolini

Woods Hole Coastal and Marine Science Center

December 31, 1997