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Publications

These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16780

Effects of heptachlor-contaminated earthworms on woodcocks

The effects on woodcocks (Philohela minor) of eating heptachlor-contaminated earthworms were studied experimentally in a series of feeding trials in Louisiana in the winter of 1960-61. Six of 12 woodcocks fed worms which had been contaminated at an average of 2.86 ppm of heptachlor epoxide died within 35 days; 4 more had died by the fifty-third day, when the other 2 were killed for analysis. Worms
Authors
W. H. Stickel, D. W. Hayne, L. F. Stickel

Chemical quality of public water supplies of the United States and Puerto Rico, 1962

Municipal water systems in the United States and Puerto Rico supply water for many commercial and industrial uses as well as for domestic wells. It is generally known that our water resources are unequally distributed throughout the country, but it is not quite so well understood that the quality of our water resources is also variable. This hydrologic investigations atlas shows, State by State, s
Authors
Charles N. Durfor, Edith Becker

Primary publication in microprint

This is a progress report on an experiment to demonstrate practicality of such publication. Based on a study conducted since 1959 through the publication of 'Wildlife Disease', the co-authors review the original aims, accomplishments, and future of primary publication in microprint. Space and cost savings, as well as author and reader reactions, portend further developments and use of this medium.
Authors
C. M. Herman, D.E. Davis

Notes on the ecology of the opossum in Maryland

No abstract available.
Authors
L. M. Llewellyn, F.H. Dale

A merganser die-off associated with larval eustrongylides

A die-off of red-breasted mergansers on Lake Holly, Virginia Beach, Virginia, was found to be due to a larval Eustrongylides. Massive tissue destruction and hemorrhage was produced by the migration of the larval Eustrongylides. Earlier stages of the same Eustrongylides were found in eastern mosquitofish and silversides upon which the mergansers had been feeding. In addition, residues of DDT were f
Authors
L. N. Locke, J.B. DeWitt, C. M. Menzie, J.A. Kerwin

Rigid plastic collars for marking geese

Rigid plastic collars of one to three colors proved useful for recognition of individual Canada geese (Branta canadensis). The collars did not seem to affect the behavior of the geese, and there was little mortality caused by their use. In good light, bright colors are visible through a 20-power spotting scope for more than 1 mile. Retention of collars was about 90 percent for 1 year and more than
Authors
R.M. Ballou, F.W. Martin

Aging and sexing blackbirds

No abstract available.
Authors
B. Meanley