Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Ticks as a factor in the 1975 nesting failure of Texas brown pelicans
No abstract available.
Authors
K. A. King, D.R. Blankinship, R.T. Paul, R.C.A. Rice
Organochlorine pesticide and polychlorinated biphenyl residues in selected fauna from a New Jersey salt marsh--1967 vs. 1973
More than a half million pounds of DDT were applied to control mosquitoes in salt marsh estuaries of Cape May County, New Jersey, from 1946 to 1966. The use of DDT was discontinued in the County after 1966. In 1967, mean concentrations of DDT and metabolites ranged from 0.63 to 9.05 ppm in aquatic fauna, but by 1973 mean residue levels had decreased 84 to 99 percent among nine species. DDE was sti
Authors
E. E. Klaas, A. A. Belisle
An automated glass capillary gas chromatographic system for routine quantitative analysis
No abstract available.
Authors
G.C. Lawler, W.-A. Loong, B.J. Fiorito, J.L. Laseter
Report of the American Ornithologists' Union Committee on Conservation, 1976-77. The recovery team-recovery plan approach to conservation of endangered species; A status summary and appraisal
The U.S. Endangered Species Act of 1973 (P.L. 93-205) identifies the U.S. Fish and Wildlife Service (USFWS), under authority delegated by the Secretary of the Interior, as the lead agency charged with the conservation of most endangered species in the United States. Some marine species are the responsibility of the Secretary of Commerce, and the responsibility for marine turtles is shared. In 1972
Authors
W.B. King, J.A. Jackson, H.W. Kale, H.F. Mayfield, R.L. Plunkett, J. M. Scott, P. F. Springer, S.A. Temple, S.R. Wilbur
Productivity, mortality, and population trends of wolves in northeastern Minnesota
Population parameters, mortality causes, and mechanisms of a population decline were studied in wolves (Canis lupus lycaon) from 1968 to 1976 in the Superior National Forest. The main method was aerial radio-tracking of 129 wolves and their packmates. Due to a decline in white-tailed deer (Odocoileus virginianus), the wolf population decreased during most of the study. Average annual productivi
Authors
L. D. Mech
Breeding densities and migration periods of common snipe in Colorado
Breeding densities and migration periods of Common Snipe in Colorado were investigated in 1974-75. Sites studied were near Fort Collins and in North Park, both in north central Colorado; in the Yampa Valley in northwestern Colorado; and in the San Luis Valley in south central Colorado....Estimated densities of breeding snipe based on censuses conducted during May 1974 and 1975 were, by region: 1.3
Authors
B. R. Johnson, R.A. Ryder
Band recovery distribution of eastern Maine woodcock
A total of 9,643 American woodcock (Philohela minor) was banded in eastern Maine during the summers of 1962-74. The fall migration of these woodcock, based on 620 recoveries, occurred along a broad front between the Appalachian Mountains and Atlantic Ocean. Most birds wintered in a region extending from southern Virginia to northern Florida; a few woodcock moved as far west as Louisiana and easter
Authors
W.B. Krohn, E.R. Clark
Fall migration of woodcock at Cape May, New Jersey
From 1968 to 1973, 2,337 American woodcock (Philohela minor) were banded during late fall on the Cape May Peninsula of southern New Jersey. Direct recovery rates averaged 3.6 percent for hatching-year birds and 1.7 percent for adults. Distribution of recoveries indicated that Cape May migrants wintered on the coastal plain of Virginia and North Carolina. Indirect recoveries showed that Peninsul
Authors
W.B. Krohn, J.C. Fieffenberger, Fred Ferrigno
Chromosomal variation in Vampyressa and a review of chromosomal evolution in the Phyllostomidae (Chiroptera)
No abstract available.
Authors
A.L. Gardner
Taxonomic implications of the karyotypes of Molossops and Cynomops (Mammalia: Chiroptera)
No abstract available.
Authors
A.L. Gardner