Artificial insemination of cranes with frozen semen
G.F. Gee, Thomas J. Sexton
J. C. Lewis, editor(s)
1979, Book chapter, Proceedings of the 1978 Crane Workshop
For the first time (1978) artificial insemination (AI) with frozen greater sandhill crane (Grus canadensis tabida) semen resulted in fertile eggs and chicks. During the 2 year (1977-78) study, 6 of 27 eggs produced were fertile. Three chicks hatched. Semen samples used for insemination were frozen and stored in liquid...
Semipalmated sandpiper migration in North America
B. A. Harrington, R. I. G. Morrison
Frank A. Pitelka, editor(s)
1979, Book chapter, Shorebirds in marine environments
Brain cholinesterase activities of passerine birds in forests sprayed with cholinesterase inhibiting insecticides
J.G. Zinkl, Charles J. Henny, P.J. Shea
1979, Book chapter, Animals as Monitors of Environmental Pollutants
Brain cholinesterase activities were determined in passerines collected from northwestern forests that had been sprayed with trichlorfon, acephate, and carbaryl at 0.56, 1.13 and 2.26 kg/ha. Trichlorfon and carbaryl inhibited cholinesterase activity slightly in only a few birds, primarily canopy dwellers. In contrast, acephate caused marked inhibition of...
Concluding remarks
S.H. Anderson
James G. Dickson, Richard N. Connor, Robert R. Fleet, Jerome A. Jackson, James C. Kroll, editor(s)
1979, Book chapter, The Role of Insectivorous Birds in Forest Ecosystems
No abstract available....
An outline of the treatment and control of crane parasites
J. W. Carpenter
J. C. Lewis, editor(s)
1979, Book chapter, Proceedings of the 1978 Crane Workshop
Archiving wildlife specimens for future analysis
H. M. Ohlendorf
N.-P Luepke, editor(s)
1979, Book chapter, Monitoring Environmental Materials and Specimen Banking, Proceedings of the International Workshop, 1978
Blood delta-aminolevulinic acid dehydratase (ALAD) to monitor lead contamination in canvasback ducks (Aythya valisineria)
M. P. Dieter
1979, Book chapter, Animals as Monitors of Environmental Pollutants
Texas colonial waterbird census, 1977-78
Gene W. Blacklock, R.D. Slack, D.R. Blankinship, A.H. Chaney, Kirk A. King, J.C. Smith, L. Mullins
D. Lynn Drawe, editor(s)
1979, Book chapter, Proceedings of the First Welder Wildlife Foundation Symposium
Estimating population densities from variable circular plot surveys
F. L. Ramsey, J. M. Scott
R.M. Cormack, Ganapati P. Patil, D.S. Robson, editor(s)
1979, Book chapter, Sampling Biological Populations
Endrin versus 12-ketoendrin in birds and rodents
W. H. Stickel, T. E. Kaiser, W. L. Reichel
E.E. Kenaga, editor(s)
1979, Book chapter, Avian and Mammalian Wildlife Toxicology: A Symposium
British workers showed that in rats the endrin metabolite, 12-ketoendrin, was five times as toxic as endrin, was probably the ultimate cause of death, and was the main form of endrin in the brain at death. In cows and rabbits, however, they detected little of this metabolite. They...
Environmental contaminant studies by the Patuxent Wildlife Research Center
G. H. Heinz, E. F. Hill, W. H. Stickel, L.F. Stickel
E.E. Kenaga, editor(s)
1979, ASTM Special Technical Publication STP693
Evaluation of the effects of environmental contaminants on wildlife is geared to interpreting events in the field, especially population effects, and both field and laboratory studies are planned for this purpose; procedures are adapted to specific problems and therefore do not include strict protocols or routine testing. Field evaluations include...
Oil dispersants and wildlife
P.H. Albers
Columbus H. Brown, editor(s)
1979, Book chapter, Proceedings of the 1979 U.S. Fish and Wildlife Service Pollution Response Workshop, 8-10 May 1979, St. Petersburg, Florida
Monitoring fish and wildlife for environmental pollutants
Thomas J. O’Shea, Bob Hines, J. Larry Ludke
1979, Book
No abstract available....
Vegetation and vertebrates of the Patuxent Wildlife Research Center: outline of ecology and annotated lists. A reprint, with new supplements, of 'Vegetation of the Patuxent Research Refuge, Maryland'
N. Hotchkiss, R. E. Stewart
1979, Book
Canada geese of the Patuxent Wildlife Research Center: family relationships, behavior and productivity
L.H. Rummel
1979, Book
Geese described are non-migratory, free-flying Todd's Canada geese (Branta canadensis interior). The genealogy of 261 of these geese was traced by archival research and three years of field observations. Nest locations and densities, preferences for various types of artificial nest structures, clutch sizes, hatching success, brood survival to...
Museum studies and wildlife management: Selected papers
R.C. Banks (compiler)
1979, Book
Measurement of stream primary production
Doyle Stephens
1979, Report
Images of the U.S. Geological Survey, 1879-1979
E. L. Yochelson, C.M. Nelson
1979, Report
This collection of photographs reflects 100 years of public service by the U.S. Geological Survey since its founding on March 3, 1879: "... for the classification of the public lands, and examination of the geological structure, mineral resources, and products of the national domain."...
Uranium-series dating of lacustrine limestones from pan deposits with final Acheulian assemblage at Rooidam, Kimberley district, South Africa
Barney J. Szabo, K.W. Butzer
1979, Quaternary Research (11) 257-260
Lacustrine limestone samples from sedimentary pan deposits at Rooidam, near Kimberley, South Africa, that contain late Acheulian (Fauresmith) artifacts have been dated by 230Th234U and 231Pa235U methods. Results indicate a minimum age of about 200,000 yr B.P. for the terminal Acheulian in the interior of South Africa. ...
Uranium-series age of coral reef growth on Rottnest Island, Western Australia
Barney J. Szabo
1979, Marine Geology (29) M11-M15
Dating samples of corals and shell from the elevated coral reef terrace on Rottnest Island, Western Australia, indicate that in this region away from active plate boundaries the sea stood at least 3 m above present sea level 132,000 ± 5,000 years ago. There is no geologic evidence of other...
A radiographic scanning technique for cores
G. W. Hill, M.E. Dorsey, J.C. Woods, R. J. Miller
1979, Marine Geology (29) 93-106
A radiographic scanning technique (RST) can produce single continuous radiographs of cores or core sections up to 1.5 m long and up to 30 cm wide. Changing a portable industrial X-ray unit from the normal still-shot mode to a scanning mode requires simple, inexpensive, easily constructed, and highly durable equipment....
Small-scale slump deposits, Middle Atlantic Continental Slope, off eastern United States
H.J. Knebes, Bobb Carson
1979, Marine Geology (29) 221-236
Analyses of 24 high-resolution seismic-reflection profiles that were collected during local and regional surveys show that small-scale slump deposite are ubiquitous whthin the intercanyon areas of the Continental Slope of the Middle Atlantic Bight. The deposits involve the upper 10-90 m of sediments, extend downslops for 1.8-7.2 km, and are...
Volcanic ash in surficial sediments of the Kodiak shelf - An indicator of sediment dispersal patterns
M. A. Hampton, A.H. Bouma, T. P. Frost, I.P. Colburn
1979, Marine Geology (29) 347-356
Surficial sediments of the Kodiak shelf, Gulf of Alaska, contain various amounts of volcanic ash whose physical properties indicate that it originated from the 1912 Katmai eruption. The distribution of ash is related to the shelf physiography and represents redistribution by oceanic circulation rather than the original depositional pattern from...
On the mechanical interaction between a fluid-filled fracture and the earth's surface
David D. Pollard, Gary Holzhausen
1979, Tectonophysics (53) 27-57
The mechanical interaction between a fluid-filled fracture (e.g., hydraulic fracture joint, or igneous dike) and the earth's surface is analyzed using a two-dimensional elastic solution for a slit of arbitrary inclination buried beneath a horizontal free surface and subjected to an arbitrary pressure distribution. The solution is obtained by...
On microbial contaminants, micropseudofossils, and the oldest records of life
P. Cloud, K. Morrison
1979, Precambrian Research (9) 81-91
Microbial contaminants may be introduced on outcrop as well as en route to or in the laboratory. Micropseudofossils may be natural or man-made. It is possible to recognize such misleading objects and important that they are not allowed to dilute the growing record of authentic pre-Phanerozoic life. Filamentous microbial contaminants...
