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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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.
Filter Total Items: 6197
Breeding plan to preserve the genetic variability of the Kootenai River white sturgeon: Appendix D Breeding plan to preserve the genetic variability of the Kootenai River white sturgeon: Appendix D
No abstract available at this time
Authors
H. L. Kincaid
Burrowing mayflies in Lake Erie - a review Burrowing mayflies in Lake Erie - a review
This paper describes the life history, distribution, and abundance of Hexagenia in Lake Erie, as shown by sediment core samples containing preserved Hexagenia remains dating back to about 1740, periodic sampling of living nymphal populations since about 1930, observations of emergences and mating swarms of adults, and the incidence of Hexagenia in fish stomachs. The roles of...
Authors
Thomas A. Edsall, C.P. Madenjian, B.A. Manny
Changes in the bottom fauna of western Lake Erie Changes in the bottom fauna of western Lake Erie
The bottom fauna of western Lake Erie has changed dramatically over the past 50 years in response to environmental degradation and biological invasions. In 1953, low dissolved oxygen reduced the biodiversity of that fauna, especially burrowing mayflies and freshwater mussels (Unionidae). Canada and the United States signed the Great Lakes Water Quality Agreement in 1972. By 1982, over 7...
Authors
Bruce A. Manny, D. W. Schloesser
Climate Change: potential effects in the Southern Appalachians Climate Change: potential effects in the Southern Appalachians
No abstract available at this time
Authors
J.D. Peine, C.W. Berish
Connectivity: Maintaining flows in fragmented landscapes Connectivity: Maintaining flows in fragmented landscapes
No abstract available.
Authors
A. Dobson, K. Ralls, M. Foster, M. E. Soule, D. Simberloff, D. Doak, J. A. Estes, L. S. Mills, D. Mattson, R. Dirzo, H. Arita, S. Ryan, E. A. Norse, R. F. Noss, D. Johns
Conservation of aquatic karst Biotas: shedding light on troubled waters Conservation of aquatic karst Biotas: shedding light on troubled waters
No abstract available.
Authors
Stephen J. Walsh
Conservation of grassland birds in the western hemisphere Conservation of grassland birds in the western hemisphere
No abstract available.
Authors
P.D. Vickery, P.L. Tubaro, J.M. Cardoso da Silva, B. Peterjohn, J.R. Herkert, R.B. Cavalcanti
Consumption of rainbow smelt by walleye and salmonine fishes in eastern Lake Erie Consumption of rainbow smelt by walleye and salmonine fishes in eastern Lake Erie
At present, rainbow smelt appear to represent a key component of the eastern Lake Erie fish community as they are the dominant prey for virtually every open water predator, and are harvested directly by an important Ontario commercial fishery. In response to concern over the status of rainbow smelt in eastern Lake Erie, our objective was to quantify some primary top down forces of...
Authors
D.W. Einhouse, M.T. Bur, F.C. Cornelius, R. Kenyon, C.P. Madenjian, P.S. Rand, K.L. Sztramko, L.D. Witzel
Control of exotic species: European wild boar Control of exotic species: European wild boar
No abstract available at this time
Authors
J.D. Peine, R. Lancia
Corridors: Reconnecting fragmented landscapes Corridors: Reconnecting fragmented landscapes
No abstract available.
Authors
A. Dobson, K. Ralls, M.S. Foster, M. E. Soule, D. Simberloff, D. Doak, J. A. Estes, L. S. Mills, D. Mattson, R. Dirzo, H. Arita, S. Ryan, E. A. Norse, R. F. Noss, D. Johns
Decision analysis tools: use of the Legal-Institutional Analysis Model: Chapter 9 Decision analysis tools: use of the Legal-Institutional Analysis Model: Chapter 9
No abstract available.
Authors
B. L. Lamb, N. Burkardt, D. Lybecker
Demographic parameter estimation for experimental landscape studies on small mammal populations Demographic parameter estimation for experimental landscape studies on small mammal populations
No abstract available.
Authors
J.D. Nichols, C.J. Coffman