Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16782
Effects of sevin-4-oil, dimilin, and orthene on forest birds in northeastern Oregon
The possible harmful effect of insecticides on nontarget organisms should be a prominent concern in all attempts to control forest pests. Although all wildlife must be considered, birds are particularly vulnerable. The study reported here was part of the effort to find an environmentally safe method to control one of the major sources of insect damage to forest trees - the Douglas-fir tussock moth
Authors
M.L. Richmond, C. J. Henny, R.L. Floyd, R.W. Mannan, D.M. Finch, L.R. DeWeese
Newsletter for the Accelerated Research Program for migratory shore and upland game birds
No abstract available.
Authors
R.A. Coon
Experimental lead poisoning in bald eagles
Captive, crippled bald eagles unsuitable for release were fed lead shot to determine diagnostic criteria for lead poisoning. The eagles were fluoroscoped and bled periodically to determine shot retention and blood delta--aminolevulinic acid dehydratase activity. Microscopic examination revealed renal tubular degeneration, arterial fibrinoid necrosis and myocardial necrosis. Acid-fast intra-nuclear
Authors
H. Pattee, S. Wiemeyer, P. Hoffman, J. Carpenter, L. Sileo
Seasonal occurrence and distribution of submerged aquatic macrophytes in the tidal Potomac River
A systematic survey was conducted in the Tidal Potomac River in 1978 to determine the presence, abundance, and phenology of submersed aquatic macrophytes. The survey covered 81.5 km of main river and 59.3 km of tributary on the Maryland shore. Four regions were selected for the study: (1) Piscataway - Mattawoman Creek region (fresh-tidal river), (2) Nanjemoy Creek-Port Tobacco River region (tran
Authors
G. M. Haramis, V. Carter, P. Gammon, C. Hupp
An experimental translocation of the eastern timber wolf
No abstract available.
Authors
T.F. Weise, W. L. Robinson, R.A. Hook, L. D. Mech
Supplements on plants, fishes, amphibians, reptiles, and mammals
No abstract available.
Authors
W. H. Stickel
Assessment of fire damage within Seney Wildlife Refuge from aerial photography and LANDSAT imagery
No abstract available.
Authors
H.M. Lachowski, S.H. Anderson
Effects of heptachlor-treated cereal grains on Canada geese in the Columbia Basin
In 1976 and 1977, die-offs of birds of several species occurred in Umatilla and Morrow counties, Oregon. Detection of high levels of heptachlor epoxide (HE) in tissues of Canada geese (Branta canadensis) prompted this study to determine the extent and impact of heptachlor contamination on geese on two study areas on the Columbia River--the Umatilla National Wildlife Refuge (Umatilla) in Oregon and
Authors
L. J. Blus, C. J. Henny, D.J. Lenhart, E. Cromartie
Texas colonial waterbird census, 1977-78
No abstract available.
Authors
Gene W. Blacklock, R.D. Slack, D.R. Blankinship, A.H. Chaney, K. A. King, J.C. Smith, L. Mullins