Book Chapters
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.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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
Production of striped bass and other North American sports fish
No abstract available at this time
Authors
J.H. Kerby, C.E. Nash
Productivity of saker falcons (Falco cherrug) in Mongolia
During the summers 1994-1995, over 80 eyries were located on over 10,000 km of survey routes in Mongolia. Where possible, production and hatch dates were assessed when the eyries were found. For 75 nesting attempts, breeding success was found to be 92%. The average number of young per brood was 28 for 68 attempts. The number of young fledged per pair by year were 3.2 in 1994 and 2.6 in 1995.
Authors
D. H. Ellis, Merlin H. Ellis, Pu Tsengeg
Puerto Rican parrots
Since the arrival of Columbus in Puerto Rico, the Taino Indian has disappeared and the parrot has just barely survived (Wadsworth 1949; Snyder et al. 1987). The Puerto Rican parrot (Amazona vittata) had shared its habitat with the peaceful Taino Indians for centuries before the arrival of European settlers in the Caribbean.
Authors
J. Michael Meyers
Puerto Rican parrots and potential limitations of the metapopulation approach to species conservation
No abstract available.
Authors
M.H. Wilson, C.B. Kepler, N.F.R. Snyder, S.R. Derrickson, F. J. Dein, J. W. Wiley, J.M. Wunderle, A.E. Lugo, D.L. Graham, W.D. Toone
Reef fishes of the Florida Keys
The Florida Keys are a chain of islands extending 320 km (199 mi) along the southern edge of the Florida Plateau from Biscayne Bay to the Dry Tortugas (101 km [63 mi] west of Key West). The Florida Reef Tract, a band of living coral reefs paralleling the Keys, extends from Fowey Rocks to the Marquesas and includes about 130 km (81 mi) of bank reefs and 6,000 patch reefs. For convenience, the Keys
Authors
William F. Smith-Vaniz, James A. Bohnsack, James D. Williams
Release strategies for rehabilitated sea otters
According to the U.S. Fish and Wildlife Services’ (USFWS) Response Plan for sea otters (USFWS, in preparation), in the event of an oil spill, the decision to release sea otters from rehabilitation centers following treatment will be linked to the decision on whether to capture sea otters for treatment. Assuming a scenario similar to the Exxon Valdez oil spill (EVOS), once the decision to capture s
Authors
Anthony R. DeGange, Brenda E. Ballachey, Keith Bayha
Reptiles and amphibians in the endangered longleaf pine ecosystem
The Coastal Plain of the southeastern United States contains a rich diversity of reptiles and amphibians (herpetofauna). Of the 290 species native to the Southeast, 170 (74 amphibians, 96 reptiles) are found within the range of the remnant longleaf pine (Pinus palustris) ecosystem (Fig. 1). Many of these species are not found elsewhere, particularly those amphibians that require temporary ponds fo
Authors
C. Kenneth Dodd
Responsibilities and activities of the U.S. Geological Survey related to mining and the environment
No abstract available.
Authors
Charles N. Alpers
Review of nursery and growout culture techniques for red drum (Sciaenops ocellatus)
No abstract available at this time
Authors
A. Henderson-Arzapalo
Sample size and allocation of effort in point count sampling of birds in bottomland hardwood forests
To examine sample size requirements and optimum allocation of effort in point count sampling of bottomland hardwood forests, we computed minimum sample sizes from variation recorded during 82 point counts (May 7-May 16, 1992) from three localities containing three habitat types across three regions of the Mississippi Alluvial Valley (MAV). Also, we estimated the effect of increasing the number of
Authors
W.P. Smith, D.J. Twedt, R.J. Cooper, D.A. Wiedenfeld, P.B. Hamel, R.P. Ford
Scales, planning and approaches to inventory and monitoring
No abstract available.
Authors
M.J. Samways, N.E. Stork, J. Cracraft, A.C. Eeley, M.S. Foster, G. Lund, C. Hilton-Taylor
Seasonal-to-interannual fluctuations in surface temperature over the Pacific: effects of monthly winds and heat fluxes
Monthly heat fluxes and wind stresses are used to force the Oberhuber isopycnic ocean general-circulation (OPYC) model of the Pacific basin over a two-decade period from 1970 to 1988. The surface forcings are constructed from COADS marine observations via bulk formulae. Monthly anomalies of the fluxes and stresses are superimposed upon model climatological means of these variables, which were save
Authors
Daniel R. Cayan, Arthur J. Miller, Tim P. Barnett, Nicholas E. Graham, Jack N. Ritchie, Josef M. Oberhuber