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Page 5157, results 128901 - 128925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Effects of dietary cadmium on mallard ducklings
B. W. Cain, L. Sileo, J. C. Franson, Jeff Moore
1983, Environmental Research (32) 286-297
Mallard (Anas platyrhynchos) ducklings were fed cadmium in the diet at 0, 5, 10, or 20 ppm from 1 day of age until 12 weeks of age. At 4-week intervals six males and six females from each dietary group were randomly selected, bled by jugular venipuncture, and necropsied. Significant decreases...
Residues of organochlorine compounds in starlings (Sturnus vulgaris), 1979
B. W. Cain, C.M. Bunck
1983, Environmental Monitoring and Assessment (3) 161-172
Starlings were collected for the National Pesticides Monitoring Program from 112 sites throughout the contiguous United States and analyzed for organochlorine compounds. Starling samples from 14 sites had greater than 1.0 ppm DDE residues with the highest DDE level being 15.8 ppm in a sample taken near Roswell, New Mexico....
Empirical comparison of uniform and non-uniform probability sampling for estimating numbers of red-cockaded woodpecker colonies
P.H. Geissler, L.M. Moyer
1983, American Statistical Association, Proceedings of the Section on Survey Research Methods (1983) 144-149
Four sampling and estimation methods for estimating the number of red-cockaded woodpecker colonies on National Forests in the Southeast were compared, using samples chosen from simulated populations based on the observed sample. The methods included (1) simple random sampling without replacement using a mean per sampling...
Fifty-ninth Christmas Bird Count. 176. Ocean City, Md
C.S. Robbins
1983, American Zoologist (23) 129
Some organophosphorus insecticides have been reported to interfere with reproduction and even cause the decline of small mammal populations. The effects of such anticholinesterases on plasma LH concentrations were examined in male mice (Peromyscus leucopus noveboracensis) intubated with water (OW) or acephate (50 and 100 mg/kg) and sacrificed after...
Reduced fecundity in small populations of the rare plant Gentianopsis ciliate (Gentianaceae)
C.S. Robbins
1983, American Birds (37) 519
Habitat destruction is the main cause for the biodiversity crisis. Surviving populations are often fragmented, i.e., small and isolated from each other. Reproduction of plants in small populations is often reduced, and this has been attributed to inbreeding depression, reduced attractiveness for pollinators, and reduced habitat quality in...
Trends in organochlorine and mercury residues in common loon (Gavia immer) eggs from New Hampshire
S. D. Haseltine, J.S. Fair, S.A. Sutcliffe, D. M. Swineford
1983, Transactions of the Northeast Fish and Wildlife Conference (40) 131-141
Failed eggs collected from New Hampshire common loon (Gavia immer) nests in 1979 (N = 15) and 1981 (N = 21) were analyzed for organochlorines and mercury (Hg). In contrast to reports of previous samplings, DDT was not detected in any egg. PCB and DDE residues showed declining...
Elevated DDE and toxaphene residues in fishes and birds reflect local contamination in the lower Rio Grande Valley, Texas
Donald H. White, C. A. Mitchell, H.D. Kennedy, A. J. Krynitsky, M. A. Ribick
1983, Southwestern Naturalist (28) 325-333
A potential organochlorine pesticide problem was identified near Mission, Texas, by the National Pesticide Monitoring Program. Fish samples from this site have consistently contained elevated levels of DDE since 1968. Surveys were made in 1976, 1978, and 1979 to determine the extent of organochlorine pesticide contamination in fishes and birds...
The bile acid composition of crane gallbladder bile
John A. Serafin
1983, Comparative Biochemistry and Physiology, Part A: Physiology (74) 221-223
1. The biliary bile acids of the whooping crane (Grus americana) and the Florida sandhill crane (G. canadensis pratensis) have been examined.2. Cholic acid (CA), chenodeoxycholic acid (CDOCA) and lithocholic acid were found in bile from both species of these North American cranes.3. CDOCA and CA were the primary bile...