Skip to main content
U.S. flag

An official website of the United States government

Publications

Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Filter Total Items: 6063

Foreword

No abstract available.
Authors
Xiaogang Ma, Matty Mookerjee, Leslie Hsu, Denise Hills

Ecological significance of Wild Huckleberries (Vaccinium membranaceum)

Wild huckleberry (Vaccinium globare/membranaceum complex) is a keystone species in the Pacific Northwest of the United States. The fruits are a primary food source for grizzly bears and other wildlife, as well as an important traditional and contemporary human food. Huckleberry shrubs also provide cover and nesting habitat for many animal species, including small mammals and birds. The flowers pro
Authors
Janene Lichtenberg, Tabitha Graves

Pollen records, postglacial: Southeastern North America

Pollen records from the unglaciated southeastern region of North America provide an overview of biogeographic changes associated with vegetational migration northward following the retreat of the Laurentide Ice Sheet. Changing insolation during the Holocene affected forest composition on the Coastal Plain, and rising sea level controlled the distribution of marsh and forested wetlands throughout t
Authors
Debra A. Willard

Endangered Klamath suckers

Since Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) hatched in the early 1990s, almost none of the fish have survived to adulthood. When full grown, Lost River suckers are the largest of the Klamath suckers, averaging about two and a half feet long, whereas shortnose suckers are at around twenty-one inches. Rather than an inability to spawn, these species a

Authors
Summer M. Burdick

Opening letter: The long shadow of Merapi volcano

No abstract available.
Authors
John S. Pallister, Jacob B. Lowenstern

Chapter 5: Health and diseases

Health and diseases are integral parts of the life of seabirds that merit attention if we expect to truly understand, protect, and conserve them. Diseases such as avian influenza, avian pox, pasteurellosis, and paralytic shellfish poisoning have a proven history of decreasing the survival or breeding success of seabirds. However, each host-pathogen-environment system is unique, and our current kno
Authors
Ralph Vanstreels, Marcella Uhart, Thierry M. Work

Climate change and ‘alien species in National Parks’: Revisited

The US National Park Service mission includes conserving native species and historical landscapes ‘unimpaired for the enjoyment of future generations’. However, humans have increased the introduction of non-native species that can become invasive and which have harmful impacts on native species and landscapes. We revisit two previous papers, ‘Alien Species in National Parks: Drawing Lines in Space
Authors
Catherine S. Jarnevich, Terri Hogan, Jennifer Sieracki, Christine Lipsky, John Wullschleger

Osmoregulation and acid-base balance.

Maintaining relatively constant levels of internal cellular ions is critical to the normal function of all animals. For many organisms this is achieved primarily by regulating the ion and acid-base composition of the blood within narrow limits. This understanding of the importance of “le milieu interior,” first espoused by Claude Bernard in the mid-1800s and later described as “homeostasis” by Wal
Authors
Stephen D. McCormick, Eric T. Schultz, Colin Brauner

Horseshoe crab

No abstract available.
Authors
David R. Smith

The Colorado River – The science-policy interface

No abstract available.
Authors
John C. Schmidt, Lindsey Bruckerhoff, Jianghao Wang, Charles Yackulic

Contaminant studies in Oregon

No abstract available.
Authors
Charles J. Henny