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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

Saving imperiled native Hawaiian birds: Leveraging avian malaria and mosquito ecology research to support effective mosquito control in Hawaiʻi

Saving imperiled native Hawaiian birds: Leveraging avian malaria and mosquito ecology research to support effective mosquito control in Hawaiʻi

Humpback chub rebound: USGS science uncovers population increase and range expansion for threatened fish

Humpback chub rebound: USGS science uncovers population increase and range expansion for threatened fish

EESC in the News: Sturgeon Genetics

EESC in the News: Sturgeon Genetics

Publications

Predicting reach-scale macroinvertebrate community changes due to declining flows in an aridland river Predicting reach-scale macroinvertebrate community changes due to declining flows in an aridland river

Understanding the connection between streamflow and macroinvertebrate community structure is critical for managing river ecosystems under scenarios of change caused by human activities and drought. Streamflow influences physical habitat characteristics, including depth, water velocity, and substrate composition, which structure macroinvertebrate communities. Although strong empirical...
Authors
Justin C. Hockett, Christopher Holmquist-Johnson, Joel G. Murray, Eric W. Kortenhoeven, David M. Merritt, David A. Lytle

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

Science

Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
Terrestrial Mammal Research

Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
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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...
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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...
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