Book Chapters
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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 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: 6198
Effects of urbanization on the distribution of area-sensitive forest birds in Prince George's County, Maryland Effects of urbanization on the distribution of area-sensitive forest birds in Prince George's County, Maryland
Bird survey data from Prince George's County, Maryland, were used to evaluate the effects of urbanization on the distribution of forest bird species that are area sensitive. We developed models that predict the probability of occurrence for species during the nesting season as a function of forest area and degree of urbanization. All of the 21 bird species considered occurred in a higher
Authors
D.K. Dawson, C.S. Robbins, L.J. Darr
Efficacy of a DNA vaccine against infectious hematopoietic necrosis virus Efficacy of a DNA vaccine against infectious hematopoietic necrosis virus
No abstract available
Authors
G. Kurath, S. Corbeil, Eric Anderson, S. E. LaPatra
Environmental contaminants Environmental contaminants
The purpose of this chapter is to provide an overview of the ecotoxicology of major classes of environmental contaminants, with respect to sources, environmental chemistry, most likely routes of exposure, potential bioaccumulation and biomagification, mechanisms of toxicity, and effects on potentially vulnerable species of mammalian wildlife. Major contaminants reviewed were selected on...
Authors
D. J. Hoffman, Barnett A. Rattner, I. Scheunert, F. Korte
Estacion Biologica Cocha Cashu: Panorama general Estacion Biologica Cocha Cashu: Panorama general
No abstract available.
Authors
M.S. Foster
Estandardizacion en los estudios de diversidad biologica Estandardizacion en los estudios de diversidad biologica
No abstract available.
Authors
M.S. Foster
Estimation of species richness and parameters reflecting community dynamics using data from ecological monitoring programs Estimation of species richness and parameters reflecting community dynamics using data from ecological monitoring programs
Although many ecological monitoring programs are now in place, the use of resulting data to draw inferences about changes in biodiversity is problematic. The difficulty arises because of the inability to count all animals present in any sampled area. This inability results not only in underestimation of species richness but also in potentially misleading comparisons of species richness...
Authors
J.D. Nichols, J.R. Sauer, J.E. Hines, T. Boulinier, K. H. Pollock
Evaluation of the major histocompatibility complex (Mhc) in cranes: applications to conservation efforts Evaluation of the major histocompatibility complex (Mhc) in cranes: applications to conservation efforts
Although there have been heated discussions concerning the relative importance of using Mhc diversity as a basis for selecting breeders in conservation projects, most parties agree that the genetic variability residual in an endangered species should be maintained through genetic management, if at all possible. Substantial evidence exists (particularly in birds) documenting the...
Authors
S.I. Jarvi, M.M. Miller, R.M. Goto, G.F. Gee, W.E. Briles
Extinctions of marine mammals Extinctions of marine mammals
No abstract available.
Authors
Glenn R. VanBlaricom, Leah R. Gerber, Robert L. Brownwell
Fate of the survivors of the 1995 and 1996 Arizona trucking migrations of costume-reared greater sandhill cranes Fate of the survivors of the 1995 and 1996 Arizona trucking migrations of costume-reared greater sandhill cranes
In 1995 and 1996, we trained 2 groups of costume-reared greater sandhill cranes (Grus canadensis tabida) (10 in 1995, 14 in 1996) to follow a truck. Thereafter we led 10 in 1995 and 12 in 1996 from Garland Prairie, northern Arizona, to the Buenos Aires National Wildlife Refuge, southern Arizona (ca. 620 km). These techniques were being developed to create additional, disjunct populations...
Authors
D.P. Mummert, D. H. Ellis, C. L. Chambers
Florida manatees: Perspectives on populations, pain, and protection Florida manatees: Perspectives on populations, pain, and protection
This overview has three related objectives. First, it provides simple documentation, descriptive summaries, and anecdotal accounts that demonstrate the extent to which maiming, and likely pain and suffering, occur in wild manatees as a result of strikes by boats. The chapter calls attention to the issues wounding raises for policy makers and managers involved with implementing boat speed...
Authors
Thomas J. O’Shea, Lynn W. Lefebvre, Cathy A. Beck