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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: 41772

Spawning of channel catfish in tanks

No abstract available.
Authors
R.R. Carter, A.E. Thomas

The display flight of The North American Ruddy Duck

Sexual behavior of the North American Ruddy Duck (Oxyura jamaicensis), as summarized by Johnsgard (1965: 323-327), includes a display variously referred to as the ringing rush (Johnsgard 1965: 325; 1967), ring rush (Johnsgard 1966), and/or display flight (Johnsgard 1966, 1967), which males perform as a short rush across the water surface, generally toward females. Differences of opinion exist conc
Authors
M. R. Miller, R.M. McLandress, B.J. Gray

Prey of sea lions in the Rogue River, Oregon

No abstract available.
Authors
R.J. Jameson, K.W. Kenyon

Energy allocation patterns of a sprouting and nonsprouting species of Arctostaphylos in the California chaparral

The r- and K-selection theory was used to generate testable hypotheses about patterns of energy allocation in two chaparral shrubs of different reproductive strategies. Terminal-branchlet vegetative and reproductive biomass of the nonsprouting Arctostaphylos glauca and the sprouting A. glandulosa were sampled in a 23-year-old and a 90-year-old stand of chaparral to test the predictions that: (1) t
Authors
Jon E. Keeley, Sterling C. Keeley

Citation analysis

No abstract available.
Authors
J. E. Keeley

Salmonella enteritidis and Arizona hinshawii isolated from wild sandhill cranes

Salmonella enteritidis serotype Rubislaw and Arizona hinshawii were isolated from cloacal swabs of "healthy" live-trapped sandhill cranes (Grus canadensis tabida) in Indiana and Wisconsin. These respective isolations were the first reported from wild sandhill cranes.
Authors
R. M. Windingstad, D.O. Trainer, R. M. Duncan