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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: 6158
Lake Michigan wetlands: classification, concerns, and management opportunities Lake Michigan wetlands: classification, concerns, and management opportunities
The wetlands that border Lake Michigan are an extremely important component of the lake ecosystem. In this paper, I will review the status of wetland classifications used for Lake Michigan and the other Great Lakes, as well as the major management concerns and opportunities presented by Lake Michigan wetlands.
Authors
Douglas A. Wilcox
Landscape level reforestation priorities for forest breeding landbirds in the Mississippi Alluvial Valley Landscape level reforestation priorities for forest breeding landbirds in the Mississippi Alluvial Valley
Thousands of ha of cleared wetlands are being reforested annually in the Mississippi Alluvial Valley (MAV). Despite the expansive and long-term impacts of reforestation on the biological communities of the MAV, there is generally a lack of landscape level planning in its implementation. To address this deficiency we used raster-based digital data to assess the value of forest restoration...
Authors
D.J. Twedt, W.B. Uihlein
Late Quaternary history of the Atacama Desert Late Quaternary history of the Atacama Desert
Of the major subtropical deserts found in the Southern Hemisphere, the Atacama Desert is the driest. Throughout the Quaternary, the most pervasive climatic influence on the desert has been millennial-scale changes in the frequency and seasonality of the scant rainfall, and associated shifts in plant and animal distributions with elevation along the eastern margin of the desert. Over the...
Authors
Claudio Latorre, Julio L. Betancourt, Jason A. Rech, Jay Quade, Camille Holmgren, Christa Placzek, Antonio Maldonado, Mathias Vuille, Kate A. Rylander
Lesser scaup Aythya affinis Lesser scaup Aythya affinis
No abstract available.
Authors
Jane E. Austin, Christine M. Custer, Alan D. Afton
Linear models: permutation methods Linear models: permutation methods
Permutation tests (see Permutation Based Inference) for the linear model have applications in behavioral studies when traditional parametric assumptions about the error term in a linear model are not tenable. Improved validity of Type I error rates can be achieved with properly constructed permutation tests. Perhaps more importantly, increased statistical power, improved robustness to...
Authors
B.S. Cade
Management of ticks and tick-borne diseases Management of ticks and tick-borne diseases
The mainstays of tick management and protection from tick-borne diseases have traditionally been personal precautions and the application of acaricides. These techniques maintain their value, and current innovations hold considerable promise for future improvement in effective targeting of materials for tick control. Furthermore, an explosion of research in the past few decades has...
Authors
H. S. Ginsberg, K.C. Stafford
Managing inland wetlands for wildlife Managing inland wetlands for wildlife
No abstract available.
Authors
M.K. Laubhan, S.L. King, L.H. Fredrickson
Mineral resources and consumption in the twenty-first century Mineral resources and consumption in the twenty-first century
Modern societies are highly dependent upon energy and mineral resources to produce and deliver the material goods and even the services of everyday life. Although societies' dependence upon fossil fuels is evident and understood by much of the population, few people are as well informed about their dependence upon a wide variety of nonfuel minerals. This ignorance may result from two...
Authors
W. David Menzie, Donald A. Singer, DeYoung
Modeling seasonal interactions in the population dynamics of migratory birds Modeling seasonal interactions in the population dynamics of migratory birds
Understanding the population dynamics of migratory birds requires understanding the relevant biological events that occur during breeding, migratory, and overwintering periods. The few available population models for passerine birds focus on breeding-season events, disregard or oversimplify events during nonbreeding periods, and ignore interactions that occur between periods of the...
Authors
M.C. Runge, P.P. Marra
Modern open-population capture-recapture models Modern open-population capture-recapture models
No abstract available.
Authors
J.D. Nichols
Monitoring Puerto Rican avifauna using roadside surveys Monitoring Puerto Rican avifauna using roadside surveys
In 1997 we began investigating the use of roadside point counts to monitor the long-term status and trends of Puerto Rican bird populations. If such a methodology proves feasible it may provide the empirical data needed for the development of sound conservation plans for the island's avifauna in much the same way that North American Breeding Bird Survey data are used by the avian...
Authors
K.L. Pardieck, B.G. Peterjohn