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Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 6063

Monitoring of colonial waterbirds in the United States: Needs and priorities

No abstract available.
Authors
R.M. Erwin, P. C. Frederick, John Trapp
By
Ecosystems Mission Area, Eastern Ecological Science Center

Monitoring of in-river migration of smolts from two groups of spring Chinook salmon (Oncorhynchus tshawytscha) with different profiles of Renibacterium salmoninarum infection

No abstract available.
Authors
R.J. Pascho, D.G. Elliott, S. Achord
By
Ecosystems Mission Area, Western Fisheries Research Center

Natural population regulation and management of Ixodes dammini

No abstract available.
Authors
H. S. Ginsberg
By
Ecosystems Mission Area, Eastern Ecological Science Center

Nomenclatural changes and additions

Abstract not supplied at this time
Authors
Eugenia B. Bohlke, W. F. Smith-Vaniz
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Nonspecific defence mechanisms assay in fish I; Phagocytic index, adherence and phagocytic ability of neutrophils (NBT test) and myeloperoxidase activity test

No abstract available at this time
Authors
A.K. Siwicki, D. P. Anderson, J. Antychowicz
By
Ecosystems Mission Area, Eastern Ecological Science Center

Nonspecific defence mechanisms assay in fish II; Potential killing activity of neutrophils and manocytes, lysozyme activity in serum and organs and total immunoglobulin (Ig) level in serum

No abstract available at this time
Authors
A.K. Siwicki, D. P. Anderson
By
Ecosystems Mission Area, Eastern Ecological Science Center

Order Didelphimorphia

No abstract available.
Authors
A.L. Gardner
By
Ecosystems Mission Area, Eastern Ecological Science Center

Order Microbiotheria

No abstract available.
Authors
A.L. Gardner
By
Ecosystems Mission Area, Eastern Ecological Science Center

Order Paucituberculata

No abstract available.
Authors
A.L. Gardner
By
Ecosystems Mission Area, Eastern Ecological Science Center

Order Xenarthra

No abstract available.
Authors
A.L. Gardner
By
Ecosystems Mission Area, Eastern Ecological Science Center

Overview of national bird population monitoring programs and databases

A number of programs have been set up to monitor populations of nongame migratory birds. We review these programs and their purposes and provide information on obtaining data or results from these programs. In addition, we review recommendations for improving these programs.
Authors
G.S. Butcher, B. Peterjohn, C.J. Ralph
By
Ecosystems Mission Area, Eastern Ecological Science Center

Paleo­geographic implications of molluscan assemblages in the Upper Cretaceous (Campanian) Pigeon Point Formation, California

The Pigeon Point Formation crops out along the San Mateo County coastline in a northern and southern sequence of folded and faulted strata. Correlation of the two sequences remains somewhat equivocal, although on the basis of biostratigraphy and a reversed magnetic interval both appear to have been deposited during the early to middle Campanian. Sedimentary structures suggest that the northern seq
Authors
William P. Elder, LouElla Saul