Exposure to insecticides of brushland wildlife within the Lower Rio Grande Valley, Texas, USA
T. W. Custer, C. A. Mitchell
1987, Environmental Pollution (45) 207-220
Brushland wildlife within the Lower Rio Grande Valley of south Texas were studied following applications of eleven insecticides to nearby sugarcane or cotton fields. During the study no wildlife were found dead. Mean brain acetylcholinesterase (AChE) activity of great-tailed grackles (Quiscalus mexicanus) and mourning doves (Zenaida macroura) was significantly lower...
Changes in litter near an aluminum reduction plant
W. N. Beyer, W. James Fleming, D. Swineford
1987, Journal of Environmental Quality (16) 246-250
Litter was collected from eight sites at distances as far as 33 km from an Al reduction plant in western Tennessee. As a result of an accumulation of fine litter (<4.75 mm) the weight of the litter per unit area was abnormally high at the two...
A survey of Pb, Cu, Zn, Cd, Cr, As, and Se in earthworms and soil from diverse sites
W. N. Beyer, E.J. Cromartie
1987, Environmental Monitoring and Assessment (8) 27-36
Earthworms and soils were collected from 20 diverse sites in Maryland, Pennsylvania, and Virginia, and were analyzed for Pb, Cu, Zn, Cd, Cr, As, and Se. Correlation coefficients relating concentrations of the elements in earthworms to concentrations in soil were low (−0.20<r<+0.57). Species differences and ecological variables contributed to the...
The need for experiments to understand population dynamics of American black ducks
David R. Anderson, K.P. Burnham, J.D. Nichols, M.J. Conroy
1987, Wildlife Society Bulletin (15) 282-284
Survival of spotted salamander eggs in temporary woodland ponds of coastal Maryland
P.H. Albers, R. M. Prouty
1987, Environmental Pollution (46) 45-61
Temporary ponds on the Atlantic Coastal Plain in maryland were characterized according to water chemistry, rain input, phytoplankton, zooplankton and use by the spotted salamander Ambystoma maculatum during March-October 1983-1984. Neither the number of egg masses per unit of pond surface (abundance) nor the survival of spotted salamander embryos was...
Review of wintering by eared grebes in the southwestern United States
R.C. Banks, R. B. Clapp
1987, Chat (51) 29-33
Improving atlas methodology
C.S. Robbins, B.A. Dowell, J. O'Brien
1987, Acta Oecologica Oecologia Generalis (8) 314 (poste
We are studying a sample of Maryland (2 %) and New Hampshire (4 %) Atlas blocks and a small sample in Maine. These three States used different sampling methods and block sizes. We compare sampling techniques, roadside with off-road coverage, our coverage with that of the volunteers, and different methods...
Comparison of neotropical winter bird populations in isolated patches versus extensive forest
C.S. Robbins, B.A. Dowell, D.K. Dawson, J. Colon, F. Espinoza, J. Rodriguez, R. Sutton, T. Vargas
1987, Acta Oecologica Oecologia Generalis (8) 285-292
Wintering birds were captured with mist nets at 12 pairs of forested sites in the New World tropics in 1984 and 1985 to compare populations in small isolated woodlands (generally 5-50 ha) with those in extensive forests (> 1,000 ha). Net-hours of effort were similar in large and small...
Hepatic morphology and mixed-function oxidases of wild cotton rats: Effects of season and environmental pollution
Barnett A. Rattner, D. Hoffman, E. Flickinger, D. Willigan
1987, Federation Proceedings (46) 955 (abstr
Toxicity of paraquat in nestling birds: effects on plasma and tissue biochemistry in American kestrels
Daivd J. Hoffman, J. Christian Franson, Oliver H. Pattee, Christine M. Bunck, Helen C. Murray
1987, Archives of Environmental Contamination and Toxicology (16) 177-183
Beginning the day after hatching, American kestrel (Falco sparverius) nestlings were orally dosed daily for 10 days with 5 μL/g of distilled water (controls), 10 mg/kg, 25 mg/kg, or 60 mg/kg of paraquat dichloride (1,1′-dimethyl-4,4′-bipyridinium dichloride) in distilled water. Forty-four percent of the nestlings receiving 60 mg/kg died after 4...
Feeding methods and efficiencies of selected frugivorous birds
M.S. Foster
1987, Condor (89) 566-580
I report on handling methods and efficiencies of 26 species of Paraguayan birds freeding on fruits of Allophyllus edulis (Sapindaceae). A bird may swallow fruits whole (Type I: pluck and swallow feeders), hold a fruit and cut the pulp from the seed with the edge of the bill, swallowing the...
Wetlands and waterbird conservation
M.A. Howe
1987, American Birds (41) 204-209
The eighty-seventh Christmas Bird Count: SD. Southern Dorchester County, MD
C.S. Robbins
1987, American Birds (41) 786, 787-788,
Prospeccion aerea para tortugas marinas en la costa mexicana del Golfo de Mexico y Caribe, 1982-1983
M.R. Marquez, T. H. Fritts
1987, Centro Regional de Investigacion Pesquera, Manzanillo, Colima, Instituto Nacional de la Pesca, Bol. Info. 23-39
Attraction of Hawaiian seabirds to lights: conservation efforts and effects of moon phase
T.C. Telfer, J.L. Sincock, G.V. Byrd, J.R. Reed
1987, Wildlife Society Bulletin (15) 406-413
Increased urban lighting on Kauai Island, Hawaii, has resulted in new problems for threatened and endangered procellariiform birds. Between 1978 and 1985,11,767 Kewell's shearwaters, 38 dark-rumped petrels, and 8 band-rumped storm petrels were attracted to bright urban lights, struck unseen objects, and fell to the ground. A salvage effort involving...
Enhancement of parathion toxicity to quail by heat and cold exposure
Barnett A. Rattner, J.M. Becker, T. Nakatsugawa
1987, Pesticide Biochemistry and Physiology (27) 330-339
Effects of ambient temperature on the acute oral toxicity of parathion were investigated in Japanese quail (Coturnix japonica) maintained at thermoneutral temperature (26.degree. C) or exposed to elevated (37.degree. C) or reduced (4.degree. C) temperatures commonly encountered by free-ranging wild birds. Based upon estimates of the median lethal dosage, there...
Oral and intramuscular toxicity of inorganic and organic mercury chloride to growing quail
E. F. Hill, J. H. Soares Jr.
1987, Journal of Toxicology and Environmental Health (20) 105-116
The lethal toxicity of inorganic (HgCl 2 ) and organic (CH 3 HgCl) mercury chloride was compared for Coturnix (Japanese quail, Coturnix japonica) of different ages from hatch through adulthood by single‐dose acute oral and intramuscular injections and by a 5‐d dietary trial. Sublethal mercury toxicity was studied by evaluation of plasma and brain cholinesterase activity. CH 3 HgCl was...
Sensitivity of high-elevation streams in the Southern Blue Ridge Province to acidic deposition
P. V. Winger, P. J. Lasier, M. Hudy, D. Fowler, M.J. Van Den Avyle
1987, Journal of the American Water Resources Association (23) 379-386
The Southern Blue Ridge Province, which encompasses parts of northern Georgia, eastern Tennessee, and western North Carolina, has been predicted to be sensitive to impacts from acidic deposition, owing to the chemical composition of the bedrock geology and soils. This study confirms the predicted potential sensitivity, quantifies the level of...
Coincident seismic reflection/refraction studies of the continental lithosphere: A global review.
W. D. Mooney, T.M. Brocher
1987, Reviews of Geophysics (25) 723-742
Nearly 50 coincident seismic reflection/refraction studies to depths of at least the Moho provide an improved understanding of the continental lithosphere. Some conclusions include the following: (1) A transparent upper crust, a common observation on vertical reflection profiles, cannot generally be correlated with velocity gradients or low-velocity zones. Rather, a...
Earthquakes of the Holocene
David P. Schwartz
1987, Reviews of Geophysics (25) 1197-1202
Geologic studies of earthquakes involve mapping of coseismic surface faulting and secondary deformation from historical events, trenching and geomorphic analysis to define the timing and size of past earthquakes, and investigations of fault zone structure and geometry in both unconsolidated sediments and bedrock. This research is now being referred to...
Aquatic cycling of selenium: Implications for fish and wildlife
A.D. Lemly, G. J. Smith
1987, Fish and Wildlife Leaflet No. 12
Polycyclic Aromatic Hydrocarbon Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review
R. Eisler
1987, Contaminant Hazard Reviews Report 11 ; Biological Report 85(1.11).
Pesticide use and toxicology in relation to wildlife: Organophosphorus and carbamate compounds
G. J. Smith
1987, Resource Publication 170
No abstract available....
Checklist of vertebrates of the United States, the U.S. territories, and Canada
Richard C. Banks, Roy W. McDiarmid, Alfred L. Gardner
1987, Resource Publication 166
On 30 January 1980 the Policy Group of the 1978 Interagency Agreement on Classifications and Inventory established a work group on fish and wildlife species names. The participating agencies were the Fish and Wildlife Service, Forest Service, Bureau of Land Management, Geological Survey, and Soil Conservation Service. The...
Population ecology of the mallard VIII: Winter distribution patterns and survival rates of winter-banded mallards
James D. Nichols, James E. Hines
1987, Resource Publication 162
In the present report we address questions about winter distribution patterns and survival rates of North American mallards Anas platyrhynchos. Inferences are based on analyses of banding and recovery data from both winter and preseason banding period. The primary wintering range of the mallard was dividded into 45...
