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: 6198
Water conditioning and whooping crane survival after release in Florida Water conditioning and whooping crane survival after release in Florida
About 50% of the whooping cranes (Grus americana) released in Florida die within the first year of release. Most of these deaths and those in subsequent years result from bobcat (Lynx rufus) predation. Choosing release sites in open marshes away from bobcat habitat has improved survival. We hypothesized that exposure to ponds (water conditioning) at the rearing site would encourage birds...
Authors
G.F. Gee, Jane M. Nicolich, S.A. Nesbitt, Jeff S. Hatfield, D. H. Ellis, Glenn H. Olsen
Whitebark pine decline: Infection, mortality and population trends Whitebark pine decline: Infection, mortality and population trends
No abstract available.
Authors
Katherine C. Kendall, Robert E. Keane
Whitebark pine, grizzly bears, and red squirrels Whitebark pine, grizzly bears, and red squirrels
Appropriately enough, much of this book is devoted to discussing management challenges and techniques. However, the impetus for action—the desire to save whitebark pine (Pinus albicaulis) - necessarily arises from the extent to which we cherish it for its beauty and its connections with other things that we value. Whitebark pine is at the hub of a fascinating web of relationships. It is...
Authors
David J. Mattson, Katherine C. Kendall, Daniel P. Reinhart
Whooping crane egg management: options and consequences Whooping crane egg management: options and consequences
Eggs to build captive whooping crane (Grus americana) flocks and most eggs for reintroduction experiments have come from second viable eggs in 2-egg clutches in Canada. Four years ago, egg removal ceased. Based on reproductive rates for years when second eggs were removed and for years when eggs were not removed, we project numbers of young fledging in the wild and in captivity for the 2...
Authors
D. H. Ellis, G.F. Gee
Whooping cranes breeding at White Lake, Louisiana, 1939: observations by John J. Lynch, U.S. Bureau of Biological Survey Whooping cranes breeding at White Lake, Louisiana, 1939: observations by John J. Lynch, U.S. Bureau of Biological Survey
On 15 May 1939, John J. Lynch of the U.S. Bureau of Biological Survey located 13 whooping cranes (Grus americana), including 2 prefledged young, during an aerial survey near White Lake in southwestern Louisiana. His observation was the last historic record of whooping cranes breeding in the wild in the United States, and it confirmed the presence of a nonmigratory breeding population...
Authors
Rod C. Drewien, J. Tautin, M.L. Courville, G.M. Gomez
Louisiana gap analysis project Louisiana gap analysis project
No abstract available.
Authors
James Johnston, Steven Hartley
The East Range, northwestern Nevada: A neglected key to the tectonic history of the region The East Range, northwestern Nevada: A neglected key to the tectonic history of the region
The East Range occupies a strategic position at the western edge of the exposed western facies terrane near the Paleozoic continental margin. There a Cambrian and Ordovician deep-water sequence including the Preble and Valmy Formations is overlain by middle to upper Paleozoic strata that are assigned to three separate stratigraphic sequences on published geologic maps of the range. The...
Authors
Keith B. Ketner, Bruce R. Wardlaw, Anita G. Harris, John E. Repetski
Solar system abundances of the chemical elements Solar system abundances of the chemical elements
No abstract available.
Authors
Gordon B. Haxel