Ecosystems

Filter Total Items: 638
Date published: October 15, 2018
Status: Active

Using Molecular Tools to Recalibrate Freshwater Mussel Taxonomy with a Focus on Imperiled Species

Freshwater mussels of the family Unionidae, also known as naiads, pearly mussels, freshwater clams, or unionids, are a diverse group of bivalve mollusks that are distributed on every continent except Antarctica. Approximately 300 species are known from the United States, with most of this diversity residing in rivers of the Southeast where many endemic taxa have evolved.

Date published: September 30, 2018
Status: Active

Wind Erosion and Dust Emissions on the Colorado Plateau

Wind erosion of soils and dust emissions are a significant resource management challenge on the Colorado Plateau. Loss of topsoil and associated aeolian sediment (wind-driven sediment) movement can lead to reduced soil fertility as well as abrasion and burial of vegetation. Dust in the atmosphere poses a threat to human health, visual resources, and regional water supplies (due to interactions...

Date published: September 30, 2018
Status: Active

Measuring Suspended-Sediment Concentrations, Grain Sizes, and Bedload using Multiple Single-Frequency Acoustic Doppler Profilers and Echologgers in the Lower Chippewa River, Wisconsin.

The Upper Mississippi River (UMR) provides critical habitat for hundreds of aquatic species and provides Minnesota with a transportation link to the rest of the world. Reliable measurements of sediment are important for making decisions as part of maintaining the channel. In 2014, sediment deposition in the navigation channel caused channel closures of the UMR delaying commercial navigation...

Contacts: David J Dean
Date published: September 19, 2018
Status: Active

Joint Ecosystem Modeling: Cape Sable Seaside Sparrow Helper

The Sparrow Helper tool allows for the evaluation of water management scenarios by generating, plotting, and mapping hydrologic metrics across a range of time scales to predict impacts of proposed water depth changes to sparrow subpopulations.

Date published: September 16, 2018
Status: Active

Long-Term Vegetation Change on the Colorado Plateau

Drylands comprise ~35% of Earth’s terrestrial biomes, with over 1 billion people depending on these landscapes for their livelihoods. In the U.S., drylands comprise ~40% of the landmass and 83% of Department of Interior (DOI)-managed lands (excluding Alaska). Due to their vast extent nationally and globally, changes to these landscapes have the potential to affect global climate regulation. A...

Date published: September 10, 2018
Status: Active

Reconstructing Ancient Human and Ecosystem Responses to Holocene Climate Conditions

This research project will reconstruct Holocene climatic conditions to better understand human adaptation and response to past environmental variability. 

Contacts: Greg Pederson
Date published: September 4, 2018
Status: Active

Detection Protocols - Renibacterium salmoninarum

Protocols for the Detection of Renibacterium salmoninarum in salmon

Date published: August 29, 2018
Status: Active

Fish Passage and Behavior

Specially constructed passages that allow fish to go around dams or other barriers are key to migratory fish accessing spawning areas, nurseries and other crucial habitats. USGS helps identify the best location for these passages and is involved in designing and testing these state-of-the-art structures. The research helps key species navigate waterways and complete instinctual migratory...

Date published: August 28, 2018
Status: Active

Statistical Tools for Wind and Solar Energy Development and Operations

Solar and wind power development is increasing exponentially in the United States. However, these energy sources may affect wildlife, either directly from collisions with the turbine blades or photovoltaic arrays or indirectly from loss of habitat and migration routes. An important component to understanding the effects of these renewable energy projects on wildlife is accurate and precise...

Date published: August 24, 2018
Status: Active

USGS Cool Tools for Hot Topics

The USGS Ecosystems Mission Area hosted an interactive session at the Association of Fish & Wildlife Agencies 2018 Annual Meeting that featured USGS science-based tools and approaches to address a variety of fish and wildlife management hot topics, including how and when to apply them to specific...

Attribution: Ecosystems
Date published: August 7, 2018
Status: Active

Relation between Plant Community Structure and Function and the Effectiveness of Wetland Restoration Efforts

High rates of wetland loss continue to occur along the northern Gulf of Mexico coast, and this remains an issue of concern to resource managers.

Date published: August 6, 2018
Status: Active

Sea Turtle Movement and Habitat Use in the Northern Gulf of Mexico

The Bureau of Ocean Energy Management (BOEM) uses trawling to capture and relocate live sea turtles away from dredging locations to minimize the risk of turtle entrainment. These incidental turtle captures provide a unique opportunity to fill critical data gaps for difficult to capture life-stages of marine turtles.