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Science Quality and Integrity

The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.

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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

Reintroduction techniques for masked bobwhites

No abstract available.
Authors
D. H. Ellis, S.J. Dobrott, J.G. Goodwin
By
Ecosystems Mission Area, Eastern Ecological Science Center

Scent-marking in wolves

No abstract available.
Authors
R. Peters, L. D. Mech
By
Ecosystems Mission Area, Eastern Ecological Science Center

Some limiting factors and research needs of endangered Hawaiian forest birds

No abstract available.
Authors
W.E. Banko
By
Ecosystems Mission Area, Eastern Ecological Science Center

Status of the peregrine falcon in the Rocky Mountains and the southwestern United States, Baja California, and Mexico (south of Texas)

About 31 pairs of peregrines still nest north of Mexico, from Idaho and Montana south through West Texas, New Mexico and Arizona. At least thirty-six additional pairs nest in Mexico. Although the nesting sites are occupied, the tissues of the peregrine?s prey species still contain high concentrations of pesticides. The eggs in some Rocky Mountain eyries have shells which are precariously thin and
Authors
Ron Porter, G.R. Craig, D. H. Ellis, J.H. Enderson, W.G. Hunt
By
Ecosystems Mission Area, Eastern Ecological Science Center

Status undetermined: Black rail

No abstract available.
Authors
P.W. Sykes
By
Ecosystems Mission Area, Eastern Ecological Science Center

Supplemental feeding of California condors

No abstract available.
Authors
S.R. Wilbur
By
Ecosystems Mission Area, Eastern Ecological Science Center

The Bird Banding Laboratory and encouragement of amateur ornithologists

No abstract available.
Authors
G.M. Jonkel
By
Ecosystems Mission Area, Eastern Ecological Science Center

The need to set up a national programme for control of fish diseases in the United States

Abstract not submitted to date
Authors
F. P. Meyer
By
Ecosystems Mission Area, Upper Midwest Environmental Sciences Center

The peregrine falcon and the U.S. Fish and Wildlife Service

No abstract available.
Authors
S.R. Wilbur
By
Ecosystems Mission Area, Eastern Ecological Science Center

Wildlife and electric power transmission

Hundreds of thousands of miles of transmission lines have been introduced into our natural environment. These lines and their corridors can be damaging or beneficial to wildlife communities depending on how they are designed, where they are placed, and when they are constructed and maintained. With the current trend toward UHV systems, new problems (associated with additional increments in audib
Authors
D. H. Ellis, J.G. Goodwin, J.R. Hunt
By
Ecosystems Mission Area, Eastern Ecological Science Center

Wolf vocalization

No abstract available.
Authors
F.H. Harrington, L. D. Mech
By
Ecosystems Mission Area, Eastern Ecological Science Center

Working group: research needs

No abstract available.
Authors
M. Friend
By
Ecosystems Mission Area, National Wildlife Health Center