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Science Quality and Integrity
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: 974
Turtles of the World: A guide to every family Turtles of the World: A guide to every family
Turtles of the World reveals the extraordinary diversity of these amazing reptiles. Characterized by the bony shell that acts as a shield to protect the softer body within, turtles are survivors from the time of the dinosaurs and are even more ancient in evolutionary terms than snakes and crocodilians. Of more than 350 species known today, some are highly endangered. In this beautiful...
Authors
Jeffrey E. Lovich, Whit Gibbons
Visitors count! Guidance for protected areas on the economic analysis of visitation Visitors count! Guidance for protected areas on the economic analysis of visitation
The value of protected areas is often hidden from direct view. Once managers understand the number and behaviour of visitors they host, and the revenues and costs they generate, informed decisions on management plans and tourism strategies can be made. Demonstrating the positive impact of protected areas on the local economy can lead to greater buy-in and ownership of conservation...
Authors
Anna Spenceley, Jan Philipp Schagner, Barbara Engels, Catherine Cullinane Thomas, Mauel Engelbauer, Joel Erkkonen, Hubert Job, Liisa Kajala, Lisa Majewski, Daniel Metzler, Marius Mayer, Andrew Rylance, Manuel Woltering, Niklas Scheder, Cecile Smith-Christensen, Thiago Beraldo Souza
From saline to freshwater: The diversity of western lakes in space and time From saline to freshwater: The diversity of western lakes in space and time
Beginning with the nineteenth-century territorial surveys, the lakes and lacustrine deposits in what is now the western United States were recognized for their economic value to the expanding nation. In the latter half of the twentieth century, these systems have been acknowledged as outstanding examples of depositional systems serving as models for energy exploration and environmental...
Be a wolf researcher! Wolf pup ethogram Be a wolf researcher! Wolf pup ethogram
Ethology is the study of behavior, and an ethogram is a list of behaviors, typically of a single species. For this ethogram we have selected a few representative behaviors that pups will exhibit during various growth phases, and therefore, this ethogram is not exhaustive. You will likely observe behaviors not detailed in this booklet (be sure to keep notes of your observations on the...
Authors
Lori J. Schmidt, Shannon Barber-Meyer, D. Ann Raspberry
Global Ecosystem Dynamics Investigation (GEDI) Level 1B User Guide Global Ecosystem Dynamics Investigation (GEDI) Level 1B User Guide
No abstract available.
Authors
Jared Beck, Bradford Wirt, Scott Luthcke, Michelle Hofton, John Armston
Global Ecosystem Dynamics Investigation (GEDI) level 2 user guide Global Ecosystem Dynamics Investigation (GEDI) level 2 user guide
No abstract available.
Authors
Jared Beck, Bradford Wirt, John Armston, Michelle Hofton, Scott Luthcke, Hao Tang
Groundwater resource development: Effect and sustainability Groundwater resource development: Effect and sustainability
No abstract available.
Authors
Leonard F. Konikow, John D. Bredehoeft
Drought early warning and forecasting Drought early warning and forecasting
Drought risk management involves three pillars: drought early warning, drought vulnerability and risk assessment, and drought preparedness, mitigation, and response. This book collects in one place a description of all the key components of the first pillar, and describes strategies for fitting these pieces together. The best modern drought early warning systems incorporate and integrate...
Authors
Chris Funk, Shraddhanand Shukla
Drivers of landscape change in the northwest boreal region Drivers of landscape change in the northwest boreal region
The northwest boreal region (NWB) of North America is a land of extremes. Extending more than 1.3 million square kilometers (330 million acres), it encompasses the entire spectrum between inundated wetlands below sea level to the tallest peak in North America. Permafrost gradients span from nearly continuous to absent. Boreal ecosystems are inherently dynamic and continually change over...
Bayesian statistics for beginners: A step-by-step approach Bayesian statistics for beginners: A step-by-step approach
Bayesian statistics is currently undergoing something of a renaissance. At its heart is a method of statistical inference in which Bayes' theorem is used to update the probability for a hypothesis as more evidence or information becomes available. It is an approach that is ideally suited to making initial assessments based on incomplete or imperfect information; as that information is...
Authors
Therese M. Donovan, Ruth M. Mickey