A Canada goose project in Connecticut
Kathryn A. Converse
1983, The Connecticut Warbler (1) 36-38
It wasn't so long ago that the wild cries of Canada geese overhead were enough to draw most people out of their homes to look skyward. It was a rare sound heard only in the spring and fall when migrating flocks of these magnificent birds marked the change of the...
Predation on seabirds by red foxes at Shaiak Island, Alaska
Margaret R. Petersen
1982, Canadian Field-Naturalist (96) 41-45
Two Red Foxes (Vulpes fulva) that invaded Shaiak Island before the 1976 nesting season had a marked impact on the nesting success of five of seven species of seabirds breeding on the island that year. Common Eiders (Somateria mollissima), Glaucous-winged Gulls (Larus glaucescens), and Common Murres (Uria aalge), that nest...
Fall and winter homesite use by wolves in northeastern Minnesota
F.H. Harrington, L.D. Mech
1982, Canadian Field-Naturalist (96) 79-84
Post-abandonment homesite use by wolves (Canis lupus) was studied by radio-tracking and simulated howling in two packs in Superior National Forest, Minnesota. Pups, yearlings, and adults returned intermittently to former homesites up to four months after abandonment, usually after prolonged separation from the pack in early fall. Returns...
Estimating reproductive success in colonial waterbirds: An evaluation
R.M. Erwin, T. W. Custer
1982, Colonial Waterbirds (5) 49-56
To estimate reproductive success in a population one ideally would like to determine the number of young fledged per nesting female. However, this is difficult because often (1) the adults are not individually marked, (2) the colony is not visited daily, and (3) the investigator is unable to monitor...
Nesting by one-year-old black-crowned night herons on Hope Island, Rhode Island
Thomas W. Custer, William E. Davis Jr.
1982, The Auk (99) 784-786
There have been few consistent reports concerning the frequency and success of nesting attempts by immature night herons of the genus Nycticorax. One- year-old Black-crowned Night Herons (Nycticorax nycticorax) mated to 2-yr-old or older birds built nests and incubated eggs in the wild (Gross 1923). In a captive colony, many...
Chloride Concentration in Water from the Upper Permeable Zone of the Tertiary Limestone Aquifer System, Southeastern United States
Craig L. Sprinkle
1982, Open-File Report 81-1103
INTRODUCTION The tertiary limestone aquifer system of the southeastern United States is a sequence of carbonate rocks referred to as the Floridan aquifer in Florida and the principal artesian aquifer in Georgia, Alabama, and South Carolina. More than 3 billion gallons of water are pumped daily from the limestone aquifer; and...
Bedform climbing in theory and nature
D. M. Rubin, R. E. Hunter
1982, Sedimentology (29) 121-138
Where bedforms migrate during deposition, they move upward (climb) with respect to the generalized sediment surface. Sediment deposited on each lee slope and not eroded during the passage of a following trough is left behind as a cross-stratified bed. Because sediment is thus transferred from bedforms to underlying strata, bedforms...
Comparisons of 210Pb and pollen methods for determining rates of estuarine sediment accumulation
G. S. Brush, E.A. Martin, R.S. DeFries, C. A. Rice
1982, Quaternary Research (18) 196-217
Comparisons of sedimentation rates obtained by 210Pb and pollen analyses of 1-m cores collected throughout the Potomac Estuary show good agreement in the majority of cores that can be analyzed by both methods. Most of the discrepancy between the methods can be explained by the analytical precision of the 210Pb method and...
Ichnofossils and rhizoliths of the nearshore fluvial Jebel Qatrani Formation (Oligocene), Fayum Province, Egypt
T. M. Bown
1982, Palaeogeography, Palaeoclimatology, Palaeoecology (40) 255-309
The ichnofossils and rhizoliths of the Oligocene Jebel Qatrani Formation of Egypt are among the best preserved, most diverse in form, and most abundant of such structures yet recognized in fluvial rocks. Twenty-one forms are described. The ichnofauna contains traces (domichnia, fodinichnia, cubichnia) of probable annelid, insect, crustacean, and vertebrate...
Potentiometric-surface map of water in the Judith River Formation in the northern Great Plains area of Montana
Gary W. Levings
1982, Open-File Report 82-562
The potentiometric surface of the Judith River Formation is mapped at a scale of 1:1,000,000. The map is one of a series produced as part of a regional study of aquifers of Cenozoic and Mesozoic age in the northern Great Plains of Montana. The contour interval is 200 feet. Water...
House bat management
Arthur M. Greenhall
1982, Resource Publication 143
The soundest long-term solution for the management of bats that enter buildings and cause a nuisance problem or present a public health hazard is by batproofing the structure. Chemical toxicants do not solve house bat problems and may create worse ones. This manual describes batproofing techniques that will provide effective...
Habitat Suitability Index Models: Marten
Arthur W. Allen
1982, FWS/OBS 82/10.11
Habitat preferences and species characteristics of the pine marten (Martes americana) are described in this publication. It is one of a series of Habitat Suitability Index (HSI) models and was developed through an analysis of available scientific data on the species-habitat requirements of the pine marten. Habitat use information is...
Water resources and data-network assessment of the Manasota Basin, Manatee and Sarasota Counties, Florida
David P. Brown
1982, Water-Resources Investigations Report 82-37
The average annual rainfall in the Manasota Basin is 53.7 inches , and annual evapotranspiration is about 39 inches. Annual runoff from gaged parts of the Basin ranges from about 13 to 17 inches per year. Streamflow in the upland areas diminishes rapidly following the end of the rainy season...
Habitat Suitability Index Models: Beaver
Arthur W. Allen
1982, FWS/OBS 82/10.30
Habitat preferences of the beaver (Castor canadensis) are described in this publication, which is one of a series of Habitat Suitability Index (HSI) models. Habitat use information is presented in a synthesis of the literature on the species-habitat requirements of the beaver, followed by the development of the HSI model....
Potentiometric-surface map of water in the Lakota Formation and equivalent units in the northern Great Plains area of Montana
Gary Wayne Levings
1982, Open-File Report 82-563
The potentiometric surface of water in the lower Cretaceous Lakota Formation and equivalent units (Cut Bank Sandstone Member , Sunburst Sandstone Member, and Moulton Member of Kootenai formation; Third Cat Creek sandstone of Kootenai Formation; Pryor Conglomerate Member of Kootenai Formation) is shown on a base at a scale of...
Chloride Concentration in Water from the Upper Permeable Zone of the Tertiary Limestone Aquifer System, Southeastern United States
Craig L. Sprinkle
1982, Water-Resources Investigations Report 81-1103
INTRODUCTION The tertiary limestone aquifer system of the southeastern United States is a sequence of carbonate rocks referred to as the Floridan aquifer in Florida and the principal artesian aquifer in Georgia, Alabama, and South Carolina. More than 3 billion gallons of water are pumped daily from the limestone aquifer; and...
On the distribution of species occurrence
Martin A. Buzas, Carl F. Koch, Stephen J. Culver, Norman F. Sohl
1982, Paleobiology (8) 143-150
The distribution of species abundance (number of individuals per species) is well documented. The distribution of species occurrence (number of localities per species), however, has received little attention. This study investigates the distribution of species occurrence for five large data sets. For modern benthic foraminifera, species occurrence is examined from...
The use of vertical seismic profiles in seismic investigations of the earth
Alfred H. Balch, Myung W. Lee, J. J. Miller, Robert T. Ryder
1982, Geophysics (47) 906-918
During the past 8 years, the U.S. Geological Survey has conducted an extensive investigation on the use of vertical seismic profiles (VSP) in a variety of seismic exploration applications. Seismic sources used were surface air guns, vibrators, explosives, marine air guns, and downhole air guns. Source offsets have ranged from...
The occurrence of the Complexiopollis-Atlantopollis zone (Palynomorphs) in the Eagle Ford Group (Upper Cretaceous) of Texas
Raymond A. Christopher
1982, Journal of Paleontology (56) 525-541
The Lower and lower Upper Cretaceous palynological zones defined in the Atlantic Coastal Plain Province and which occur in the eastern Gulf Coastal Plain Province are characterized by a paucity of marine invertebrate fossils. As a result, correlation of these zones with European and provincial stages, as well as with...
Diatom biostratigraphy and paleoecology of the type section of the Luisian Stage, central California
Jack G. Baldauf, John A. Barron
1982, Micropaleontology (28) 84
Diatoms from the type section of the Luisian Stage in central California correlate with the lowermost part of the Denticulopsis lauta Zone through the lower part of subzone "a" of the Denticulopsis hustedtii-D. lauta Zone and are early Middle Miocene in age (about 6.0 to 14.0 Ma), Rocks assigned to...
Organic geochemistry and pore water chemistry of sediments from Mangrove Lake, Bermuda
Patrick G. Hatcher, Bernd R. T. Simoneit, F.T. MacKenzie, A.C. Neumann, D.C. Thorstenson, S.M. Gerchakov
1982, Organic Geochemistry (4) 93-112
Mangrove Lake, Bermuda, is a small coastal, brackish-water lake that has accumulated 14 m of banded, gelatinous, sapropelic sediments in less than 104 yr. Stratigraphic evidence indicates that Mangrove Lake's sedimentary environment has undergone three major depositional changes (peat, freshwater gel, brackish-water gel) as a result of sea level changes. The...
Reflection—refraction of general P- and type-I S-waves in elastic and anelastic solids
Roger D. Borcherdt
1982, Geophysical Journal International (70) 621-638
The reflection and refraction of general (homogeneous or inhomogeneous) plane P and type-I S(SV) body waves incident on plane boundaries are considered for general linear viscoelastic solids. Reflection—refraction laws, physical characteristics of the waves, and the nature of critical angles are examined in detail at welded boundaries and a free surface. General...
Effects of chronic exposure to simazine on the cladoceran, Daphnia pulex
K. M. Fitzmayer, J. G. Geiger, Michael J. Van Den Avyle
1982, Archives of Environmental Contamination and Toxicology (11) 603-609
The effects of chronic exposure to simazine, an s-triazine herbicide, on the cladoceranDaphnia pulex were evaluated under laboratory conditions. The daphnids were exposed to simazine concentrations corresponding to previously calculated 48-hr LC5 and LC20 values and the effects on survival, growth, reproduction, and behavior were monitored daily for 26 days. Survival...
Uraniferous opal, Virgin Valley, Nevada: Conditions of formation and implications for uranium exploration
R. A. Zielinski
1982, Journal of Geochemical Exploration (16) 197-216
Uraniferous, fluorescent opal, which occurs in tuffaceous sedimentary rocks at Virgin Valley, Nevada, records the temperature and composition of uranium-rich solutions as well as the time of uranium-silica coprecipitation. Results are integrated with previous geologic and geochronologic data for the area to produce a model for uranium mobility that may...
Biogenic and nonbiogenic ore-forming processes in the south Texas uranium district; evidence from the Panna Maria deposit
Richard L. Reynolds, Martin B. Goldhaber, D. Carpenter
1982, Economic Geology (77) 541-556
Geochemical and petrographic studies of core samples from the Panna Maria uranium deposit, a roll-type orebody in the Eocene Jackson Group in Karnes County, Texas, yield important information on the origin of the deposit. Organic carbon content averages about 0.42 weight percent in reduced rock and correlates postively with sulfur...
