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
White-spot disease of salmon fry
White-spot disease, sometimes referred to as coagulated-yolk disease, has been associated with excessive mortalities occurring among the fry and early fingerling stages of the fall chinook salmon (Oncorhynchus tshawytacha) at the U.S. Fish-Cultural Stations at Carson, Cook, Underwood, and Willard, Washington. This disease of eggs and fry should not be confused with the "white-spot" infection that
Authors
J. J. Mazuranich, W. E. Nielson
Parasites of the Raccoon, Procyon lotor
At least 76 species of parasites have been reported from raccoons. These include 4 species of protozoa, 27 nematodes, 20 trematodes, 7 cestodes, 3 acanthocephala, and 15 arthropods. In many cases these represent single reports. In other cases some of the parasites are known to be of frequent occurrence and broad geographical range on the basis of several surveys that have been conducted. During
Authors
G. M. Clark, C. M. Herman
Cooperative migration study--spring of 1959
No abstract available.
Authors
J.V. Dennis, C.S. Robbins, J.H. Zimmerman
Operation recovery: Report on mist netting along the Atlantic coast in 1958
No abstract available.
Authors
J. Baird, A.M. Bagg, I.C.T. Nisbet, C.S. Robbins
Comparative tests of various herbicides on waterchestnut
No abstract available.
Authors
J.R. Greeley, J.H. Steenis
Effects on fish and wildlife of chemical treatments of large areas
Summary: The history of field investigations of the effects of DDT on wildlife is reviewed briefly, from the initial studies in 1945 through the more recent studies of the effects of the large-scale programs for spruce-budworm control and gypsy-moth eradication. DDT dosages and procedures that are recommended for protection of wildlife are reviewed. Effects of aldrin, heptachlor, and toxaphene
Authors
J.L. George
Notes on Bachman's sparrow in Central Louisiana
Notes on the ecology of Bachman’s Sparrow (Aimophila aestivalis) were obtained during a study of birds in relation to the direct or artificial seeding of Longleaf Pine (Pinus palustris) and Loblolly Pine (P. taeda) in central Louisiana from 1955 to 1957. Stoddard (in Burleigh, “Georgia Birds,” pp. 667-668, 1958) has presented an account of the ecology of this species in the pine woods of southern
Authors
B. Meanley
Observations on the fulvous tree duck in Louisiana
The Fulvous Tree Duck is a locally common breeding bird of the rice fields of southwestern Louisiana. Observations made in 1955, 1956 and 1957, showed that this species was probably most abundant in the vicinity of Mamou, Evangeline Parish, and Roanoke, Jefferson Davis Parish. Tree ducks arrive in the rice country as the rice is planted in the spring and usually depart following fall harvest. A fe
Authors
B. Meanley, A.G. Meanley