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.
Filter Total Items: 6158
Ichthyophonus disease (ichthyophoniasis) Ichthyophonus disease (ichthyophoniasis)
No abstract available.
Authors
Paul K. Hershberger
Genetic concepts and uncertainties in restoring fish populations and species Genetic concepts and uncertainties in restoring fish populations and species
Genetic considerations can be crucially important to the success of reintroductions of lotic species. Current paradigms for conservation and population genetics provide guidance for reducing uncertainties in genetic issues and for increasing the likelihood of achieving restoration. Effective restoration is facilitated through specific goals and objectives developed from the definition...
Authors
R.R. Reisenbichler, F.M. Utter, C.C. Krueger
A critical look at national monitoring programs for birds and other wildlife species A critical look at national monitoring programs for birds and other wildlife species
Concerns?about declines in numerous taxa have created agreat deal of interest in survey development. Because birds have traditionally been monitored by a variety of methods, bird surveys form natural models for development of surveys for other taxa. Here I suggest that most bird surveys are not appropriate models for survey design. Most lack important design components associated with
Authors
J.R. Sauer
A mining impacted stream: Exposure and effects of lead and other trace elements on tree swallows (Tachycineta bicolor) nesting in the Upper Arkansas River Basin, Colorado A mining impacted stream: Exposure and effects of lead and other trace elements on tree swallows (Tachycineta bicolor) nesting in the Upper Arkansas River Basin, Colorado
No abstract available.
Authors
Christine M. Custer, T. W. Custer, A.S. Archuleta, L.C. Coppock, C.D. Swartz, J. W. Bickham
A review of lake trout (Salvelinus namaycush) restoration in Lake Ontario from an early life history perspective A review of lake trout (Salvelinus namaycush) restoration in Lake Ontario from an early life history perspective
The authors conclude that small numbers of lake trout spawned successfully each year during 1992-97 in Lake Ontario, although this has yet to result in a trend of increasing natural reproduction. Juxtaposed with the high abundance of mature fish (Selgeby et al., 1995), the situation in Lake Ontario suggests a reduction in reproductive efficiency. This could result from mortality factors...
Authors
John Fitzsimons, Brian F. Lantry, Robert O’Gorman
A review of the role of contaminants in amphibian declines A review of the role of contaminants in amphibian declines
For the past decade, there has been growing concern about worldwide declines in amphibian populations,1,2 and a general phenomenon of declining populations was recognized in the mid-1990's. Subsequent research has validated this concern.3,4 These population declines have been defined either as decreases in numbers of individuals in an area or, preferably because of greater reliability, a...
Authors
Donald W. Sparling
American kestrel (Falco sparverius) American kestrel (Falco sparverius)
No abstract available.
Authors
Charles J. Henny
American shad in the Columbia River American shad in the Columbia River
American shad Alosa sapidissima from the Hudson River, New York, were introduced into the Sacramento River, California, in 1871 and were first observed in the Columbia River in 1876. American shad returns to the Columbia River increased greatly between 1960 and 1990, and recently 2-4 million adults have been counted per year at Bonneville Dam, Oregon and Washington State (river kilometer...
Authors
J.H. Petersen, R.A. Hinrichsen, D.M. Gadomski, D.H. Feil, D.W. Rondorf
Amphibian conservation genetics Amphibian conservation genetics
No abstract available.
Authors
C.M. Bridges, C. L. Rowe, W. A. Hopkins
Amphibians and pesticides in pristine areas Amphibians and pesticides in pristine areas
No abstract available.
Authors
D. W. Sparling, D. Cowman
Animal species endangerment: The role of environmental pollution Animal species endangerment: The role of environmental pollution
Multiple factors contribute to the decline of species. Habitat destruction is the primary factor that threatens species. affecting 73 % of endangered species. The second major factor causing species decline is the introduction of nonnative species. affecting 68% of endangered species. Pollution and overharvesting were identified as impacting, respectively, 38 and 15% of endangered...
Authors
Oliver H. Pattee, Valerie L. Fellows, Dixie L. Bounds
Approaches to developing sediment quality guidelines for PAHs: Chapter 17 Approaches to developing sediment quality guidelines for PAHs: Chapter 17
No abstract available.
Authors
David R. Mount, Christopher G. Ingersoll, Joy A. McGrath