Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41771
Supplements to yellow corn for winter-maintenance and subsequent reproduction of quail
No abstract available.
Authors
R. B. Nestler
The salt (sodium chloride) requirements of growing bobwhite quail
In the two experiments involving 452 bobwhite quail chicks, seven diets containing the following salt supplements, were compared: No additional salt; 0.25 per cent KaCl; 0.50 per cent NaC1; 0.75per cent NaCl; 1.00 per cent NaCl; 0.25 per cent Na2SO4; and 0.50 per cent KCl. All four diets containing sodium chloride gave about equal results in bird-growth, and produced better weights than the diet c
Authors
R. B. Nestler
Vitamin A storage in wild quail and its possible significance
Livers of 445 wild bobwhites taken in Iowa, Wisconsin, and Illinois in late fall and winter of 1947-48 were assayed for vitamin A. All contained vitamin A; but the amount in many was so low that it is estimated that 4% of the birds would have died directly from lack of vitamin A within 3 weeks or that as much as 42% might have been affected enough to make them die from predation and severe weathe
Authors
R. B. Nestler, J.B. DeWitt, J.V. Derby
Distribution of North American birds. The breeding distribution of the Virginia rail
No abstract available.
Authors
C.S. Robbins
Thirteenth breeding-bird census. 10. Mature and lumbered oak-maple ridge forest
No abstract available.
Authors
C.S. Robbins
Thirteenth breeding-bird census. 24. Open hemlock-spruce bog
No abstract available.
Authors
C.S. Robbins
Thirteenth breeding-bird census. 7. Virgin hemlock forest
No abstract available.
Authors
C.S. Robbins
Winter bird-population study: 16. Damp deciduous scrub with standing dead trees
No abstract available.
Authors
C.S. Robbins
Ecology of a nesting red-shouldered hawk population
An ecological study of a nesting Red-shouldered Hawk population was made over a 185 square mile area on the Coastal Plain of Maryland in 1947. The courting and nesting season extended from late February until late June.....During the nesting season a combination of fairly extensive flood-plain forest with adjacent clearings appears to meet the major ecological requirements of the Red-shouldered Ha
Authors
R. E. Stewart