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Page 2782, results 69526 - 69550

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Oral biology and beak disorders of birds
Glenn H. Olsen
2003, Veterinary Clinics of North America: Exotic Animal Practice (6) 505-521
The beak, or bill, of the bird is a complicated structure. The avian skull is described as having some reptilian features; this includes a quadrate bone that articulates with the articular bone of the lower jaw....
Effects of management practices on grassland birds: Greater Prairie-Chicken
W. Daniel Svedarsky, J.E. Toepfer, R.L. Westemeier, R.J. Robel
2003, Report
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the breeding distribution of Greater Prairie-Chicken in the United States and southern Canada. Although birds frequently are observed...
Histories of Puerto Rican parrot nests in the Caribbean National Forest/Luquillo Experimental Forest, 1973-2000
J.M. Wunderle Jr., N.F.R. Snyder, B. Muiznieks, J. W. Wiley, J.M. Meyers
2003, Report
This publication summarizes the histories of all known Puerto Rican parrot nests in the Caribbean National Forest/Luquillo Experimental Forest from 1973 through 2000. Included for each nest, when known, are the identifies of the pair, clutch size, known fertile and infertile eggs, number of eggs that hatched, number of chicks...
Multiple stressor effects in relation to declining amphibian populations
Greg L. Linder, Sherry K. Krest, Donald Sparling, E. Little, editor(s)
2003, Special Technical Report ASTM STP 1443
Original research discusses the protocols and approaches to studying the effects of multiple environmental stressors on amphibian populations and gives new perspectives on this complicated subject. This new publication integrates a variety of stressors that can act in concert and may ultimately cause a decline in amphibian populations.Sixteen peer-reviewed papers...
Annotated checklist of Georgia birds
G. Beaton, P.W. Sykes Jr., J.W. Parrish Jr.
2003, Occasional Publication No. 14
This edition of the checklist includes 446 species, of which 407 are on the Regular Species List, 8 on the Provisional, and 31 on the Hypothetical. This new publication has been greatly expanded and much revised over the previous checklist (GOS Occasional Publ. No. 10, 1986, 48 pp., 6x9 inches)...
Ecosystem-level consequences of migratory faunal depletion caused by dams
Mary C. Freeman, C. M. Pringle, E.A. Greathouse, B. J. Freeman
K.E. Limburg, J.R. Waldman, editor(s)
2003, Book chapter, Biodiversity, Status and Conservation of the World?s Shads
Humans have been damming rivers for millennia, and our more ambitious efforts over the past century have arguably altered river ecosystems more extensively than any other anthropogenic activity. Effects of damming on river biota include decimation of migratory fauna (e.g., diadromous and potamodromous fishes and crustaceans), lost fisheries, and...
Foreword
C.S. Robbins
Wayne R. Petersen, W. Roger Meservey, editor(s)
2003, Book chapter, Massachusetts Breeding Bird Atlas
Lead in the environment
Oliver H. Pattee, Deborah J. Pain
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
Anthropogenic uses of lead have probably altered its availability and environmental distribution more than any other toxic element. Consequently, lead concentrations in many living organisms may be approaching thresholds of toxicity for the adverse effects of lead. Such thresholds are difficult to define, as they vary with the chemical and...
Changes in wetland sediment elevation following major storms: implications for estimating trends in relative sea-level rise
Donald R. Cahoon
2003, Book chapter, Coastal Sediments ?03 Conference: Crossing Disciplinary Boundaries: proceedings of the 5th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, Clearwater Beach, FL, May 18-23, Book of Abstracts
Hurricanes can be important agents of geomorphic change in coastal marshes and mangrove forests. Hurricanes can cause large-scale redistribution of sediments within the coastal environment resulting in sedimentation, erosion, disruption of vegetated substrates, or some combination of these processes in coastal wetlands. It has been proposed that such...
Environmental factors affecting contaminant toxicity in aquatic and terrestrial vertebrates
Barnett A. Rattner, Alan G. Heath
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
Physical and natural factors have long been known to influence the toxicity of environmental contaminants to vertebrates. The majority of data that address this topic have been derived from studies on fish, highly inbred laboratory rodents, and man.' The degree to which these factors modify toxicity has principally been elucidated...
Toxicological significance of soil ingestion by wild and domestic animals
W. Nelson Beyer, George F. Fries
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
Most wild and domestic animals ingest some soil or sediment, and some species may routinely, or under special circumstances, ingest considerable amounts. Ingested soil supplies nutrients, exposes animals to parasites and pathogens, and may play a role in developing immune systems.1 Soil ingestion is also sometimes the principal route of...
Bioindicators of contaminant exposure and effect in aquatic and terrestrial monitoring
Mark J. Melancon
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
Bioindicators of contaminant exposure presently used in environmental monitoring arc discussed. Some have been extensively field-validated and arc already in routine application. Included are (1) inhibition of brain or blood cholinesterase by anticholinesterase pesticides, (2) induction of hepatic microsomal cytochromes P450 by chemicals such as PAHs and PCBs, (3) reproductive...
Ecotoxicology of mercury
James G. Wiener, David P. Krabbenhoft, Gary H. Heinz, Anton M. Scheuhammer
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
No abstract available....
White phosphorus at Eagle River Flats, Alaska: A case history of waterfowl mortality
Donald W. Sparling
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
White phosphorus has a limited distribution in the environment because it only occurs where it has been directly used by humans. It is not transported aerially for any distance and, due to its density, has a limited ability to disperse through water. Therefore, it is not a contaminant of broad-scale...
Population modeling
John R. Sauer, Grey W. Pendleton
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
No abstract available....
A review of the role of contaminants in amphibian declines
Donald W. Sparling
David J. Hoffman, Barnett A. Rattner, G. Allen Burton Jr., John Cairns Jr., editor(s)
2003, Book chapter, Handbook of ecotoxicology, second edition
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,...
Estimation of change in populations and communities from monitoring survey data
J.R. Sauer, W.A. Link, J.D. Nichols
David E. Busch, Joel C. Trexler, editor(s)
2003, Book chapter, Monitoring ecosystems: interdisciplinary approaches for evaluating ecoregional initiatives
Monitoring surveys provide fundamental information for use in environmental decision making by permitting assessment of both current population (or community) status and change in status, by providing a historical context of the present status, and by documenting response to ongoing management. Conservation of species and communities has historically been...
The role of multiple stressor causes in declining amphibian populations: a wingspread workshop summary
S.K. Krest, G. Linder, D. W. Sparling
Gregory L. Linder, Sherry K. Krest, Donald W. Sparling, Edward E. Little, editor(s)
2003, Book chapter, Multiple stressor effects in relation to declining amphibian populations
Numerous studies have documented the decline of amphibian populations over the past decade and no single factor has been the linked to these widespread declines. Determining the causes of declining amphibian populations worldwide has proven difficult because of the variety of anthropogenic and natural suspect agents. A Wingspread workshop, convened...
Synergistic effects of a combined exposure to herbicides and an insecticide in Hyla versicolor
L. Mazanti, D. W. Sparling, C. Rice, K. Bialek, C. Stevenson, B. Teels
Gregory L. Linder, Sherry K. Krest, Donald W. Sparling, Edward E. Little, editor(s)
2003, Book chapter, Multiple stressor effects in relation to declining amphibian populations
Combinations of the herbicides atrazine and metolachlor and the insecticide chlorpyrifos were tested under both laboratory and field conditions to determine their individual and combined effects on amphibian populations. In the lab Hyla versicolor tadpoles experienced 100% mortality when exposed to a high combination of the pesticides (2.0 mg/L...
Interaction between perchlorate and iodine in the metamorphosis of Hyla versicolor
D. W. Sparling, G. Harvey, V. Nzengung
Gregory L. Linder, Sherry K. Krest, Donald W. Sparling, Edward E. Little, editor(s)
2003, Book chapter, Multiple stressor effects in relation to declining amphibian populations
Perchlorate (ClO4-) is a water-soluble, inorganic anion that is often combined with ammonium, potassium or other cations for use in industry and agriculture. Ammonium perchlorate, for example, is a potent oxidizer and is used in various military applications including rocket fuel. It has also been found in an...
Storms as agents of wetland elevation change: their impact on surface and subsurface sediment processes
Donald R. Cahoon
2003, Book chapter, Coastal Sediments ?03 Conference: Crossing Disciplinary Boundaries: proceedings of the 5th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, Clearwater Beach, FL, May 18-23
Direct measures of the impact of major storms on wetland sediment elevation are rare. Recently developed techniques have enabled simultaneous, quantitative observations of surface and subsurface processes affecting sediment elevation. An analysis of ten wetland sites revealed the following patterns of sediment elevation change after storm passage: (1)...
Synergy of agroforestry and bottomland hardwood afforestation
D.J. Twedt, J. Portwood
Terry R. Clason, editor(s)
2003, Book chapter, Land-use management for the future: proceedings of the 6th North American Agroforestry Conference, June 12-16, 1999, the Arlington Resort Hotel and Spa, Hot Springs, Arkansas
Afforestation of bottomland hardwood forests has historically emphasized planting heavy-seeded tree species such as oak (Quercus spp.) and pecan (Caryaillinoensis) with little or no silvicultural management during stand development. Slow growth of these tree species, herbivory, competing vegetation, and limited seed dispersal, often result in restored sites that are...