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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

Congratulations to Summer Burdick for Winning this Issue's Photo Contest!

Congratulations to Summer Burdick for Winning this Issue's Photo Contest!

Recent Accomplishments: The Skagit

Recent Accomplishments: The Skagit

In the News: Herring Featured by Sitka Science Center

In the News: Herring Featured by Sitka Science Center

Publications

Assessment of Odonata occupancy and habitat suitability at -12 Mile Slough, Glen Canyon National Recreation Area, Arizona Assessment of Odonata occupancy and habitat suitability at -12 Mile Slough, Glen Canyon National Recreation Area, Arizona

Management practices that enhance habitat complexity in dam tailwaters can increase biodiversity and improve ecosystem health, particularly in the face of climate change and warming water temperatures. In some instances, however, management practices may be intended to simplify habitat features to impede establishment of invasive species. In Glen Canyon National Recreation Area, a...
Authors
Anya Metcalfe, Morgan Ford, Lawrence Stevens, Theodore Kennedy

Range-wide population trend analysis for greater sage-grouse (Centrocercus urophasianus)—Updated 1960–2024 Range-wide population trend analysis for greater sage-grouse (Centrocercus urophasianus)—Updated 1960–2024

Greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) are at the center of State and national land-use policies largely because of their unique life-history traits as an ecological indicator for the health of sagebrush ecosystems. This updated population trend analysis provides State and Federal land and wildlife managers with the best available science to help guide...
Authors
Brian Prochazka, Peter Coates, Cameron Aldridge, Michael O’Donnell, David Edmunds, Adrian P. Monroe, Steve Hanser, Lief Wiechman, Michael Chenaille

The effects of carnivory and herbivory on the energy balance of Arctic grizzly bears The effects of carnivory and herbivory on the energy balance of Arctic grizzly bears

Omnivores often face tradeoffs between selecting for spatially dispersed energy-dense vertebrate prey versus densely distributed herbivorous resources that have limited energetic value per unit intake. Arctic grizzly bears (Ursus arctos) are large omnivores within a resource-limited ecosystem that are known to exhibit smaller body masses and occur at lower densities than grizzly bears in...
Authors
Anthony Pagano, Karyn Rode, Kerry Nicholson, William Leacock, Craig Stricker, Charles Robbins

Science

Science for effective pollinator conservation and improved food security

Pollinators, including bees, flies, butterflies, bats, birds, and other animals, are critically important to U.S. ecosystems and agriculture. Recent reports of declines of pollinator species have led to widespread actions to conserve pollinator habitat and recover imperiled species, but resource managers need accurate data and science to support management actions. USGS pollinator research helps...
Science for effective pollinator conservation and improved food security

Science for effective pollinator conservation and improved food security

Pollinators, including bees, flies, butterflies, bats, birds, and other animals, are critically important to U.S. ecosystems and agriculture. Recent reports of declines of pollinator species have led to widespread actions to conserve pollinator habitat and recover imperiled species, but resource managers need accurate data and science to support management actions. USGS pollinator research helps...
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USGS research on coastal and nearshore ecosystems informs wildlife and fisheries management

USGS research on coastal and nearshore ecosystems informs wildlife and fisheries management

USGS coastal science plays a critical role in supporting the effective, science-based management of coastal ecosystems, where the biodiversity of land and sea meet.
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Polar Bear Research

Polar bears ( Ursus maritimus) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat. Our studies, ongoing since 1985, are focused on population dynamics, health and energetics...
Polar Bear Research

Polar Bear Research

Polar bears ( Ursus maritimus) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat. Our studies, ongoing since 1985, are focused on population dynamics, health and energetics...
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