Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Twenty-ninth winter bird-population study. 13. Upland tulip-tree-maple-oak forest
No abstract available.
Authors
C.S. Robbins
Twenty-ninth winter bird-population study. 12. Hickory-oak-ash floodplain forest
No abstract available.
Authors
C.S. Robbins
The waterfowl hunter's perceptions of the waterfowl resource
No abstract available.
Authors
R.I. Smith, R. J. Roberts
[Rebuttal to article by J.M. Diamond] Island biogeography and conservation: Strategy and limitations
No abstract available.
Authors
R.F. Whitcomb, J.F. Lynch, P.A. Opler, C.S. Robbins
Thermal adaptiveness of plumage color in screech owls
Clinal variation in the relative proportions of red and gray plum- age phases in Screech Owls (Otus asio) was analyzed by Owen (1963) and Marshall (1967). This variation was well known prior to Owen's work, but was misinterpreted (Baird, et al. 1874, Hasbrouck 1893, Allen 1893).]Laurel VanCamp and Charles Henny (MS) have 30 years of data on a northern Ohio Screech Owl population. They observed an
Authors
James A. Mosher, Charles J. Henny
Duck deaths from accidental ingestion of anthelmintic
No abstract available.
Authors
J. L. Ludke, L. N. Locke
Mapping wetlands on beaver flowages with 35-mm photography
Beaver flowages and associated wetlands on the Chippewa National Forest, north-central Minnesota, were photographed from the ground and from the open side window of a small high-wing monoplane. The 35-mm High Speed Ektachrome transparencies obtained were used to map the cover-type associations visible on the aerial photographs. Nearly vertical aerial photos were rectified by projecting the slides
Authors
R.E. Kirby
Biochemical identification of the mallard, Anas platyrhynchos, and black duck, A. rubripes
1. Eleven tissue systems from mallards and black ducks were examined for soluble proteins, lactate dehydrogenases and non-specific esterases through discontinuous polyacrylamide techniques.2. Biochemical relationships between the black duck and mallard are extremely similar.3. Hemoglobins and lactate dehydrogenase appear to be common in electrophoretic mobility between the two species.4. Approxima
Authors
R.P. Morgan, L.A. Noe, C. J. Henny