Book Chapters
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 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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The influence of hydrology on lacustrine sediment contaminant records
The way water flows to a lake, through streams, as runoff, or as groundwater, can control the distribution and mass of sediment and contaminants deposited. Whether a lake is large or small, deep or shallow, open or closed, the movement of water to a lake and the circulation patterns of water within a lake control how and where sediment and contaminants are deposited. Particle-associated contaminan
Authors
Michael R. Rosen
Using natural archives to track sources and long-term trends of pollution: an introduction
This book explores the myriad ways that environmental archives can be used to study the distribution and long-term trajectories of contaminants. The volume first focuses on reviews that examine the integrity of the historic record, including factors related to hydrology, post-depositional diffusion, and mixing processes. This is followed by a series of chapters dealing with the diverse archives av
Authors
Jules Blais, Michael R. Rosen, John Smol
Using natural archives to track sources and long-term trends of pollution: some final thoughts and suggestions for future directions
Newly produced, as well as some so-called legacy contaminants, continue to be released into the environment at an accelerated rate. Given the general lack of integrated, direct monitoring programs, the use of natural archival records of contaminants will almost certainly continue to increase. We conclude this volume with a short chapter highlighting some of our final thoughts, with a focus on a ca
Authors
Jules M. Blais, Michael R. Rosen, John P. Smol
Biological indicators of changes in water quality and habitats of the coastal and estuarine areas of the Greater Everglades Ecosystem; Chapter 11
This chapter summarizes the application of various biological indicators to studying the anthropogenic and natural changes in water quality and habitats that have occurred in the coastal and estuarine areas of the Greater Everglades ecosystem.
Authors
Anna Wachnicka, G. Lynn Wingard
Evaluating the status of individuals and populations: Advantages of multiple approaches and time scales
The assessment of population status is a central goal of applied wildlife research and essential to the field of wildlife conservation. “Population status” has a number of definitions, the most widely used having to do with the current trajectory of the population (i.e., growing, stable, or declining), or the probability of persistence (i.e., extinction risk), perhaps without any specific knowledg
Authors
Daniel H. Monson, Lizabeth Bowen
Evaluation of a five-year shoal bass conservation-stocking program in the upper Chattahoochee River, Georgia: Chapter 16
This work demonstrates the utility of restoration stocking to restore an endemic species.
Authors
Michael J. Porta, James M. Long
The comparative limnology of Lakes Nyos and Monoun, Cameroon
Lakes Nyos and Monoun are known for the dangerous accumulation of CO2 dissolved in stagnant bottom water, but the shallow waters that conceal this hazard are dilute and undergo seasonal changes similar to other deep crater lakes in the tropics. Here we discuss these changes with reference to climatic and water-column data collected at both lakes during the years following the gas release disasters
Authors
George Kling, William C Evans, Gregory Tanyileke
Hybridization threatens shoal bass populations in the Upper Chattahoochee River Basin: Chapter 37
Shoal bass are native only to the Apalachicola-Chattahoochee-Flint river system of Georgia, Alabama, and Florida, and are vulnerable to extinction as a result of population fragmentation and introduction of non-native species. We assessed the genetic integrity of isolated populations of shoal bass in the upper Chattahoochee River basin (above Lake Lanier, Big Creek, and below Morgan Falls Dam) and
Authors
Elizabeth E Dakin, Brady A. Porter, Byron J. Freeman, James M. Long
Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13
Eleven slow slip events (SSEs) have occurred on the southern flank of Kilauea Volcano, Hawai’i, since 1997 through 2014. We analyze this series of SSEs in the context of Kilauea’s magma system to assess whether or not there are interactions between these tectonic events and eruptive/intrusive activity. Over time, SSEs have increased in magnitude and become more regular, with interevent times avera
Authors
Emily Montgomery-Brown, Michael P. Poland, Asta Miklius
Hawaiian fissure fountains: Quantifying vent and shallow conduit geometry, episode 1 of the 1969-1974 Mauna Ulu eruption
Geometries of shallow magmatic pathways feeding volcanic eruptions are poorly constrained, yet many key interpretations about eruption dynamics depend on knowledge of these geometries. Direct quantification is difficult because vents typically become blocked with lava at the end of eruptions. Indirect geophysical techniques have shed light on some volcanic conduit geometries, but the scales are to
Authors
Carolyn Parcheta, Sarah Fagents, Donald A. Swanson, Bruce F. Houghton, Todd Ericksen
Phreatomagmatic and related eruption styles
No abstract available.
Authors
Bruce F. Houghton, James DL White, Alexa R. Van Eaton
Onset of rejuvenated-stage volcanism and the formation of Līhu‘e Basin: Kaua‘i events that occurred 3-4 million years ago
For ocean-island volcanoes, an understanding of rejuvenated-stage volcanism requires knowing the age of onset, duration of the volcanic episode, and length of quiescence that preceded the rejuvenated pulse. On the Island of Kaua‘i, cuttings from two lava flows intercepted in the Hanamā‘ulu well (Līhu‘e basin) and assigned to the Kōloa Volcanics on basis of major-element, trace-element, and isotope
Authors
David R. Sherrod, Scot K. Izuka, Brian L. Cousens