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Page 3172, results 79276 - 79300

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Not all publications have extents, not all extents are completely accurate
Relation of waterfowl poisoning to sediment lead concentrations in the Coeur d'Alene River Basin
W. N. Beyer, D. J. Audet, G. H. Heinz, D. J. Hoffman, D. Day
2000, Ecotoxicology (9) 207-218
For many years, waterfowl have been poisoned by lead after ingesting contaminated sediment in the Coeur d'Alene River Basin, in Idaho. Results of studies on waterfowl experimentally fed this sediment were combined with results from field studies conducted in the Basin to relate sediment lead concentration to injury to waterfowl....
A radio transmitter attachment technique for soras
G. Michael Haramis, Gregory D. Kearns
2000, Journal of Field Ornithology (71) 135-139
We modified a figure-8 leg-loop harness designed for small passerines to attach successfully 1.8-g radio transmitters over the synsacrum of migrant Soras (Porzana carolina). Because of the short caudal region of Soras, addition of a waist loop was critical to securing the transmitter while leg loops were maintained to center...
Survival of American black ducks radiomarked in Quebec, Nova Scotia, and Vermont
J. R. Longcore, D.G. McAuley, D.A. Clugston, C.M. Bunck, J.-F. Giroux, C. Ouellet, G.R. Parker, P. Dupuis, Daniel B. Stotts, J.R. Goldsberry
2000, Journal of Wildlife Management (64) 238-252
We monitored survival of 397 radiomarked juvenile American black ducks (Anas rubripes) distributed among Les Escoumins (n = 75) and Kamouraska, Quebec (n = 84), Amherst Point, Nova Scotia (n = 89), and a site on the Vermont-Quebec border (n = 149) during autumn 1990 and 1991. Eighty-six percent (215...
Toxicity of manganese to Ceriodaphnia dubia and Hyalella azteca
P. J. Lasier, P. V. Winger, K. J. Bogenrieder
2000, Archives of Environmental Contamination and Toxicology (38) 298-304
Manganese is a toxic element frequently overlooked when assessing toxicity of effluents, sediments, and pore waters. Manganese can be present at toxic levels in anoxic solutions due to increased solubility under chemically reducing conditions, and it can remain at those levels for days in aerated test waters due to slow...
Brief communication: Polymorphism of alpha1-antitrypsin in North American species of Canis
N.E. Federoff, F. Kueppers
2000, Journal of Heredity (91) 174-176
α1-Antitrypsin (A1AT) is a major protease inhibitor present in all mammalian sera that have thus far been investigated. A1AT is also highly polymorphic and is therefore a useful genetic marker. Previously reported A1AT polymorphism in domestic dogs consisted of two alleles designated as Pim and Pis which exhibited frequencies of...
Effects of forest management on density, survival, and population growth of wood thrushes
L.A. Powell, J. D. Lang, M.J. Conroy, D.G. Krementz
2000, Journal of Wildlife Management (64) 11-23
Loss and alteration of breeding habitat have been proposed as causes of declines in several Neotropical migrant bird populations. We conducted a 4-year study to determine the effects of winter prescribed burning and forest thinning on breeding wood thrush (Hylocichla mustelina) populations at the Piedmont National Wildlife Refuge (PNWR) in...
Effects of the mosquito larvicides temephos and methoprene on insect populations in experimental ponds
A.E. Pinkney, P. C. McGowan, D.R. Murphy, T. P. Lowe, D. W. Sparling, L.C. Ferrington
2000, Environmental Toxicology and Chemistry (19) 678-684
The nontarget effects of Abate® 4E (44.6% temephos) at 0.054 kg of active ingredient (a.i.) per 1 ha and of Altosid® Liquid Larvicide (5% methoprene) at 0.011 kg a.i./ha were investigated in 18 experimental ponds (average area, 202 m2; maximum depth, 0.7 m) at Patuxent Wildlife Research Center, Laurel, Maryland,...
A double-observer approach for estimating detection probability and abundance from point counts
J.D. Nichols, J.E. Hines, J.R. Sauer, F.W. Fallon, J.E. Fallon, P.J. Heglund
2000, The Auk (117) 393-408
Although point counts are frequently used in ornithological studies, basic assumptions about detection probabilities often are untested. We apply a double-observer approach developed to estimate detection probabilities for aerial surveys (Cook and Jacobson 1979) to avian point counts. At each point count, a designated 'primary' observer indicates to...
Mixed-function oxygenases, oxidative stress, and chromosomal damage measured in lesser scaup wintering on the Indiana Harbor Canal
T. W. Custer, Christine M. Custer, R. K. Hines, D. W. Sparks, M. J. Melancon, D. J. Hoffman, J. W. Bickham, J.K. Wickliffe
2000, Archives of Environmental Contamination and Toxicology (38) 522-529
During the winter of 1993-1994, male lesser scaup (Aythya alfinis) were collected on the heavily polluted Indiana Harbor Canal, East Chicago, Indiana, and examined for several bioindicators of chemical exposure. Livers were analyzed for activities of three cytochrome P450-associated monooxygenases and four measures of oxidative stress. Blood and spleen were...
Organochlorine and metal contaminant exposure and effects in hatching Black-Crowned Night Herons (Nycticorax nycticorax) in Delaware Bay
Barnett A. Rattner, D. J. Hoffman, M. J. Melancon, Glenn H. Olsen, S.R. Schmidt, K.C. Parsons
2000, Archives of Environmental Contamination and Toxicology (39) 38-45
Pea Patch Island in Delaware Bay is the site of the largest heronry north of Florida. From 1989–93, the population of nine species of wading birds numbered approximately 12,000 pairs, but has recently declined to about 7,000 pairs. Because Delaware Bay is a major shipping channel and receives anthropogenic releases...
Capturing American black ducks in tidal waters
M.K. Harrison Sr., G.M. Haramis, Dennis G. Jorde, Daniel B. Stotts
2000, Journal of Field Ornithology (71) 153-158
We modified conventional, funnel-entrance dabbling duck bait traps to increase captures for banding of American Black Ducks (Anas rubripes) in tidal saltmarsh habitats of Smith Island, Maryland, one of the few remaining strongholds for breeding Black Ducks in the Chesapeake Bay. Traps and trapping techniques were adapted to tidal...
Contaminant exposure and effects: Terrestrial vertebrates database: Trends and data gaps for Atlantic Coast estuaries
Barnett A. Rattner, J.L. Pearson, N. H. Golden, J.B. Cohen, R.M. Erwin, M. A. Ottinger
2000, Environmental Monitoring and Assessment (63) 131-142
In order to examine the condition of biota in Atlantic coast estuaries, "Contaminant Exposure and Effects—Terrestrial Vertebrates" database (CEE-TV) has been compiled through computerized search of published literature, review of existing databases, and solicitation of unpublished reports from conservation agencies, private groups, and universities. Summary information has been entered into...
Plant phenology in a cloud forest on the island of Maui, Hawaii
Kim E. Berlin, T.K. Pratt, John C. Simon, James R. Kowalsky, Jeff S. Hatfield
2000, Biotropica (32) 90-99
We recorded the times of flowering, fruiting, and leafing for ten native canopy and subcanopy trees and shrubs (monthly from December 1994 through December 1997) in a montane cloud forest with relatively aseasonal rainfall on the island of Maui, Hawaii. These species represented the great majority of individual woody plants...
Annual survival and site fidelity of Stellar's Eiders molting along the Alaska Peninsula
Paul L. Flint, Margaret R. Petersen, Christian P. Dau, James E. Hines, James D. Nichols
2000, Journal of Wildlife Management (64) 261-268
Populations of Steller's eiders (Polysticta stelleri) molting and wintering along the Alaska Peninsula have declined since the 1960's. We captured and marked a large sample of Steller's eiders molting in 2 lagoons along the Alaska Peninsula between 1975-97. We used mark-recapture analysis techniques to estimate annual survival and movement probabilities...
Use of lice to identify cowbird hosts
D.C. Hahn, R.D. Price, P.C. Osenton
2000, The Auk (117) 943-951
The host specificity of avian lice (Phthiraptera) may be utilized by biologists to investigate the brood parasitism patterns of Brown-headed Cowbirds (Molothrus ater). As nestlings, brood parasites have a unique opportunity to encounter lice that are typically host specific. Lice are permanent hemimetabolic ectoparasites, a group found strictly on the...
Simultaneous use of mark-recapture and radiotelemetry to estimate survival, movement, and capture rates
L.A. Powell, M.J. Conroy, J.E. Hines, J.D. Nichols, D.G. Krementz
2000, Journal of Wildlife Management (64) 302-313
Biologists often estimate separate survival and movement rates from radio-telemetry and mark-recapture data from the same study population. We describe a method for combining these data types in a single model to obtain joint, potentially less biased estimates of survival and movement that use all available data. We furnish an...
Effects of lead in nestling black-crowned night-herons (Nycticorax nycticorax) experimentally dosed in the field
N. H. Golden, Barnett A. Rattner, J.B. Cohen, D. J. Hoffman, M. A. Ottinger
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 229 (abstr
Lead is a known environmental toxicant, and poisoning resulting from the ingestion of lead shot has been well-documented in many species of waterfowl. However, much less is known regarding exposure and effects of free environmental lead in species of birds other than waterfowl. In an attempt to evaluate...
Effects of contaminants in dredge material from the Lower Savannah River
P. V. Winger, P. J. Lasier, Donald H. White, J.T. Seginak
2000, Archives of Environmental Contamination and Toxicology (38) 128-136
Contaminants entering aquatic systems from agricultural, industrial, and municipal activities are generally sequestered in bottom sediments. The environmental significance of contaminants associated with sediments dredged from Savannah Harbor, Georgia, USA, are unknown. To evaluate potential effects of contaminants in river sediments and sediments dredged and stored in upland disposal areas...
Impacts of toxic thresholds of sediment-associated contaminants to robust redhorse (Moxostoma robustum) in the Lower Oconee River
P. Lasier, P. Winger, K. Bogenrieder, J. Shelton Jr.
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 213 (abstr
The robust redhorse is a ?Species-at-Risk? in the lower Oconee River, GA. The population is composed of aging adults with little natural recruitment. Factors contributing to the loss of early-life stages are unknown, but contaminants associated with fine sediments may play a role. The objectives of this...
Ecotoxicology of wild mammals
Barnett A. Rattner, R.F. Shore
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 43 (abstra
An international group of 32 scientists has critically reviewed the scientific literature on exposure and effects of environmental contaminants in wild mammals. Although the absolute number of toxicological studies in domesticated and wild mammals eclipses that for birds, a detailed examination of scientific publications and databases reveal that information for...
Evaluation of the immunological and hematological effects of chronic exposure of adult Peromyscus leucopus to Aroclor 1254 at concentrations equivalent to those at contaminated sites
S.R. Arena, M. Segre, J.B. French Jr.
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 232 (abstr
Polychlorinated biphenyls are known to cause adverse health effects to biological systems; however, limited data is available on their effects on the immune system of wild species. Previous work by our lab found that 4 and 6-week old white-footed mice (Perornyscus leucopus) born from dams injected with a single dose...