Skip to main content
U.S. flag

An official website of the United States government

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

USGS Research Informs Big Game Management—Mule Deer Sensitive to Temperature Extremes and Habitat Quality

USGS Research Informs Big Game Management—Mule Deer Sensitive to Temperature Extremes and Habitat Quality

Environmental DNA Monitoring Protects Fish Hatchery from Invasive Species

Environmental DNA Monitoring Protects Fish Hatchery from Invasive Species

Voyage into the Past: Stories from the California Current

Voyage into the Past: Stories from the California Current

Publications

Restoration of Gavia immer (common loon) in Minnesota—2025 annual report Restoration of Gavia immer (common loon) in Minnesota—2025 annual report

In cooperation with the Minnesota Department of Natural Resources, the U.S. Geological Survey monitored 98 Gavia immer (common loon) focal territories and 43 nonfocal territories in north-central Minnesota in 2025. Focal territories are those sampling units from which study inferences can be made. Nonfocal territories were adjacent to focal territories and were observed to monitor common...
Authors
William S. Beatty, Luke J. Fara, Kristin Hall, Kevin P. Kenow, Timothy S. Mitchell, Michael J. Wellik

Holistic understanding of uncertainty for collaborative and proactive global change decision making Holistic understanding of uncertainty for collaborative and proactive global change decision making

Global change is accelerating and pushing the planet's ecosystems beyond the range of historical observations, creating increasing uncertainty in future system conditions. Despite general agreement that proactive environmental action is warranted, environmental decision conversations often end by identifying additional data needed to reduce uncertainty before taking novel action. Given...
Authors
Nicole K. Ward, Aaron D. Shultz, Amanda L. Sesser, Michael W. Price, Dawn R. Magness, Abigail J. Lynch, Jonathan F. Hansen, Kelly G. Guilbeau

Comment on “Assessing the potential for Smallmouth Bass population establishment in Grand Canyon” Comment on “Assessing the potential for Smallmouth Bass population establishment in Grand Canyon”

No abstract available.
Authors
Charles B. Yackulic, Drew Elliot Eppehimer, Lindsey A. Bruckerhoff, Anna Amidon, Kevin R. Bestgen, Nathaniel D. Bransky, Kimberly L. Dibble, Maria C. Dzul, Lindsay Erika Hansen, Brian D. Healy, M. Tildon Jones, Chris Michaud

Science

Ecology and Distribution of the Endangered Hawaiian Hoary Bat

The ‘ōpe‘ape‘a (Hawaiian hoary bat, Lasiurus semotus) is listed as endangered due to population declines and a lack of knowledge on its distribution, abundance, and habitat needs. In order to help inform management for and recovery of this species, USGS-PIERC in collaboration with other agencies has conducted studies on the bat’s distribution, abundance, population genetics, food habitats, and...
Ecology and Distribution of the Endangered Hawaiian Hoary Bat

Ecology and Distribution of the Endangered Hawaiian Hoary Bat

The ‘ōpe‘ape‘a (Hawaiian hoary bat, Lasiurus semotus) is listed as endangered due to population declines and a lack of knowledge on its distribution, abundance, and habitat needs. In order to help inform management for and recovery of this species, USGS-PIERC in collaboration with other agencies has conducted studies on the bat’s distribution, abundance, population genetics, food habitats, and...
Learn More

Land application of waste to US farmland: Understanding the scope and environmental implications to aid best practices

USGS is studying how different waste materials are reused on farmland and what they might mean for people and the environment. These wastes can offer benefits, but they can also carry substances we don’t fully understand. Because little is known about what’s in these waste materials or how they move through soil and water, more information is needed. USGS research helps fill these gaps so...
Land application of waste to US farmland: Understanding the scope and environmental implications to aid best practices

Land application of waste to US farmland: Understanding the scope and environmental implications to aid best practices

USGS is studying how different waste materials are reused on farmland and what they might mean for people and the environment. These wastes can offer benefits, but they can also carry substances we don’t fully understand. Because little is known about what’s in these waste materials or how they move through soil and water, more information is needed. USGS research helps fill these gaps so...
Learn More

Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West and are economically important as big game species on some public lands and as tourist attractions in and around national parks. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather...
Bighorn Sheep and Mountain Goat Research in Western National Park Units

Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West and are economically important as big game species on some public lands and as tourist attractions in and around national parks. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather...
Learn More
Was this page helpful?