Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

3813 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 88, results 2176 - 2200

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Fort Collins Science Center
Michele Banowetz
2004, Fact Sheet 2004-3146
The U.S. Geological Survey's Fort Collins Science Center (FORT) is one of 17 USGS biological science centers nationwide. FORT conducts research and develops technical applications to assist land managers in understanding and managing biological resources, habitats, and ecosystems. Although the majority of FORT's activities are conducted within the 15-state Central...
Fort Collins Science Center: Policy Analysis and Science Assistance
Berton L. Lamb
2004, Fact Sheet 2004-3144
Most resource management decisions involve the integrated use of biological, sociological, and economic information. Combining this information provides a more comprehensive basis for making effective land management and conservation decisions. Toward this end, scientists in the Policy Analysis and Science Assistance Branch (PASA) of the Fort Collins Science Center (FORT)...
Fort Collins Science Center: Invasive Species Science
Tom Stohlgren
2004, Fact Sheet 2004-3145
Invasive, non-native species of plants, animals, and disease organisms adversely affect the ecosystems they enter. Like "biological wildfires," they can quickly spread, and they affect nearly all terrestrial and aquatic ecosystems. Invasive species have become the greatest environmental challenge of the 21st century in terms of economic, environmental, and human...
Fort Collins Science Center: Aquatic Systems and Technology Applications
Dave Hamilton
2004, Fact Sheet 2004-3149
Land and water management agencies are responsible for restoring and conserving our nation's natural resources. However, they face increasing, often competing demands for those resources, which can result in alteration or loss of critical riverine, riparian, wetland, and terrestrial habitats. Land and resource managers may be in federal, state, or...
Fort Collins Science Center: Species and Habitats of Federal Interest
Patty Stevens
2004, Fact Sheet 2004-3148
Ecosystem changes directly affect a wide variety of plant and animal species, floral and faunal communities, and groups of species such as amphibians and grassland birds. Appropriate management of public lands plays a crucial role in the conservation and recovery of endangered species and can be a key element in...
Influence of forest management on headwater stream amphibians at multiple spatial scales
Margo Stoddard, John P. Hayes, Janet L. Erickson
2004, Fact Sheet 2004-3018
Background Amphibians are important components of headwater streams in forest ecosystems of the Pacific Northwest (PNW). They comprise the highest vertebrate biomass and density in these systems and are integral to trophic dynamics both as prey and as predators. The most commonly encountered amphibians in PNW headwater streams include the Pacific...
Fort Collins Science Center: Ecosystem Dynamics
Zack Bowen
2004, Fact Sheet 2004-3147
Many challenging natural resource management issues require consideration of a web of interactions among ecosystem components. The spatial and temporal complexity of these ecosystem problems demands an interdisciplinary approach integrating biotic and abiotic processes. The goals of the Ecosystem Dynamics Branch are to provide sound science to aid federal resource...
The importance of wood in headwater streams of the Oregon Coast Range
Christine May, Robert E. Gresswell, Janet L. Erickson
2004, Fact Sheet 2004-3055
Although headwater streams comprise the majority of stream length in mountainous regions, little is known about their form and function in comparison to higher-order rivers. A better understanding of the role of headwater streams in routing water, wood, and sediment is needed to clarify the physical and biological connections among...
The Parkfield experiment; capturing what happens in an earthquake
Steve Hickman, John O. Langbein, Peter H. Stauffer
2004, Fact Sheet 049-02
To better understand what happens on and near a fault before, during, and after an earthquake, the U.S. Geological Survey (USGS) and the California Geological Survey began the Parkfield Earthquake Experiment in the 1980's. Researchers from the USGS and collaborating institutions have created a dense network of instruments on the...
Science for the changing Great Basin
Erik Beever, David A. Pyke
2004, Fact Sheet 2004-3071
The U.S. Geological Survey (USGS), with its multidisciplinary structure and role as a federal science organization, is well suited to provide integrated science in the Great Basin of the western United States. A research strategy developed by the USGS and collaborating partners addresses critical management issues in the basin, including...