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Ecosystems Mission Area

The USGS Ecosystems Mission Area provides science that directly benefits the health, safety, and prosperity of the American people by providing trusted and timely information to help address the Nation’s toughest management and conservation issues impacting public lands and the surrounding communities that benefit from them. 

News

Northeast CASC Research Ecologist Toni Lyn Morelli Spearheads Special Issue on Climate Refugia

Northeast CASC Research Ecologist Toni Lyn Morelli Spearheads Special Issue on Climate Refugia

Helping the California Winter Rice Habitat Incentive Program increase bird use of winter-flooded rice fields

Helping the California Winter Rice Habitat Incentive Program increase bird use of winter-flooded rice fields

Duckling survival is higher if nests are closer to wetland habitats flooded during the summer

Duckling survival is higher if nests are closer to wetland habitats flooded during the summer

Publications

Pleistocene porcupine (Erethizontidae) records in arid southwestern North America and comparisons with the modern distribution of Erethizon dorsatum in southern California and Arizona Pleistocene porcupine (Erethizontidae) records in arid southwestern North America and comparisons with the modern distribution of Erethizon dorsatum in southern California and Arizona

he North American porcupine (Erethizon dorsatum) is widely distributed throughout many ecosystems on the continent from northern Mexico to the Arctic Ocean, except for the southeastern portion of the United States. Habi­tats include the arid Desert Southwest region where modern records are generally sparse. The paleogeographic range in the Desert Southwest is not unlike the modern...
Authors
Jeffrey Lovich, George Jefferson

Changing dynamic phosphorus forms from field to stream during surface runoff events Changing dynamic phosphorus forms from field to stream during surface runoff events

The risk of water quality impairment from agricultural runoff depends on nutrient source, transport, and bioavailability. Phosphorus (P) spirals between dissolved and particulate forms as it is transported with suspended sediment (SS) from agricultural fields, through the stream network, to receiving water bodies. This dynamic sorption-desorption influences bioavailability. We quantified...
Authors
Rebecca Kreiling, Tanja Williamson, Faith Fitzpatrick, Kenna J. Gierke, James Blount, Patrik Perner, Isaac James Mevis, Heidi Mae Broerman, Katherine Merriman, Matthew Komiskey

Responding to ecological transformation in Capitol Reef National Park, Utah—Employee perspectives from pilot interviews from the Cross-Park Resist-Assist-Direct Project Responding to ecological transformation in Capitol Reef National Park, Utah—Employee perspectives from pilot interviews from the Cross-Park Resist-Assist-Direct Project

Executive Summary Climate change is causing a range of changes that can affect the natural, cultural, and built resources of the Nation’s protected areas and affect opportunities to visit and recreate in these spaces. Changes in temperature and precipitation patterns also affect species and habitats, leading to ecological transformation. This report describes findings from pilot research...
Authors
Amanda Cravens, Zachary Hough Solomon, Julia Goolsby, Heather Yocum, Stefan Tangen, Wylie Carr

Science

Nearshore Marine Ecosystem Research

Nearshore ecosystems include many resources that are of high ecological, recreational, subsistence, and economic value. They also are subject to influences from a wide variety of natural and human-caused perturbations, which can originate in terrestrial or oceanic environments. Our research is designed to evaluate sources of variation in the nearshore and how they influence resources of high...
Nearshore Marine Ecosystem Research

Nearshore Marine Ecosystem Research

Nearshore ecosystems include many resources that are of high ecological, recreational, subsistence, and economic value. They also are subject to influences from a wide variety of natural and human-caused perturbations, which can originate in terrestrial or oceanic environments. Our research is designed to evaluate sources of variation in the nearshore and how they influence resources of high...
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Alaska Science Center Weekly Findings

Alaska Science Center Weekly Findings

Recent findings by USGS Alaska Science Center staff and their collaborators.
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The Rusting of Arctic Rivers: Freshwater Ecosystems Respond to Rapidly Uptaking Metals

The water quality of streams and rivers in the Arctic is sensitive to rapid climate change and altered disturbance regimes.
The Rusting of Arctic Rivers: Freshwater Ecosystems Respond to Rapidly Uptaking Metals

The Rusting of Arctic Rivers: Freshwater Ecosystems Respond to Rapidly Uptaking Metals

The water quality of streams and rivers in the Arctic is sensitive to rapid climate change and altered disturbance regimes.
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