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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.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books 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: 975
Climatic impacts to early life stages of the Robust Redhorse (Moxostoma robustum) in the Lower Oconee River. Final Report Climatic impacts to early life stages of the Robust Redhorse (Moxostoma robustum) in the Lower Oconee River. Final Report
No abstract available.
Authors
P. J. Lasier, P. V. Winger, J.L. Shelton, K. J. Bogenrieder
Contraception & deer: the Irondequoit Report Contraception & deer: the Irondequoit Report
No abstract available.
Authors
W.F. Porter, H.B. Underwood
Dispersal Dispersal
The ability of species to migrate and disperse is a trait that has interested ecologists for many years. Now that so many species and ecosystems face major environmental threats from habitat fragmentation and global climate change, the ability of species to adapt to these changes by dispersing, migrating, or moving between patches of habitat can be crucial to ensuring their survival...
Final Report: Effects on nontarget arthropods of entomopathogenic fungi used for biological control of ticks Final Report: Effects on nontarget arthropods of entomopathogenic fungi used for biological control of ticks
No abstract available.
Authors
Howard S. Ginsberg, Roger A. LeBrun, Klaus Heyer, Elyes Zhioua
Frogs of Tambopata, Peru Frogs of Tambopata, Peru
No abstract available.
Authors
R. Cocroft, V.R. Morales, R.W. McDiarmid
The use of forward looking infrared to locate bird carcasses in agricultural areas The use of forward looking infrared to locate bird carcasses in agricultural areas
Helicopter-mounted Forward Looking Infrared has mainly been used for large animal censuses. I examined the use of this instrument in locating bird carcasses in agricultural fields to improve current carcass searching techniques. Mallard (Arias platyrhynchos) and northern bobwhite quail (Colinus virginianus) carcasses were measured with an infrared thermometer immediately following death...
Authors
J.M. Healy
Water chemistry at Snowshoe Mountain, Colorado: mixed processes in a common bedrock Water chemistry at Snowshoe Mountain, Colorado: mixed processes in a common bedrock
At Snowshoe Mountain the primary bedrock is quite homogeneous, but weathering processes vary as waters moves through the soils, vadose zone and phreatic zone of the subsurface. In the thin soil, physical degradation of tuff facilitates preferential dissolution of potassium ion from glass within the rock matrix, while other silicate minerals remain unaltered. In the vadose zone, in the...
Authors
A.R. Hoch, M.M. Reddy
Wings across the desert: The incredible motorized crane migration Wings across the desert: The incredible motorized crane migration
No abstract available.
Authors
D. H. Ellis
Silurian and Devonian carbonate-shelf rocks and Lower Jurassic sequence near Rancho Placeritos West-Central Sonora Silurian and Devonian carbonate-shelf rocks and Lower Jurassic sequence near Rancho Placeritos West-Central Sonora
No abstract available.
Authors
Forrest G. Poole, R. Amaya-Martinez, William R. Page
The Sonora Orogen in the Barita de Sonora mine area east of Mazatán, central Sonora The Sonora Orogen in the Barita de Sonora mine area east of Mazatán, central Sonora
No abstract available.
Authors
Forrest G. Poole, R. Amaya-Martinez