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Three people on top of a sand dune by the ocean. One is seated looking through binoculars and one is looking through a telescope.
Forage Observations, California Sea Otters
Forage Observations, California Sea Otters
Forage Observations, California Sea Otters

Observing southern sea otter foraging behavior from San Nicolas Island, California.

a hovercraft sits atop a mudflat with mountains in the background
A hovercraft glides over the surface of Summer Lake, Oregon
A hovercraft glides over the surface of Summer Lake, Oregon
screenshots from an application
Web tool trends
Web tool trends
Web tool trends

This gif provides a preview of the output of the trends application and shows how a user can click between tabs in the tool to access the results. The tool allows the user to explore population abundance and growth rates within their area of interest across all population low points. The tool outputs are provided in map, figure, and table formats.

This gif provides a preview of the output of the trends application and shows how a user can click between tabs in the tool to access the results. The tool allows the user to explore population abundance and growth rates within their area of interest across all population low points. The tool outputs are provided in map, figure, and table formats.

screenshots and graphs of an app through time
Trend estimation calculated from seven nadirs defining six unique periods of complete population oscillation
Trend estimation calculated from seven nadirs defining six unique periods of complete population oscillation
Trend estimation calculated from seven nadirs defining six unique periods of complete population oscillation

Trend estimation calculated from seven nadirs defining six unique periods of complete population oscillation. Purple lines indicate periods of erroneous inference about population trend. Green lines indicate nadir-to-nadir inference and more accurate trend estimation.

Trend estimation calculated from seven nadirs defining six unique periods of complete population oscillation. Purple lines indicate periods of erroneous inference about population trend. Green lines indicate nadir-to-nadir inference and more accurate trend estimation.

headshot of a man with a river in the background
Damian Higgins, Research Manager, USGS Western Ecological Research Center
Damian Higgins, Research Manager, USGS Western Ecological Research Center
Damian Higgins, Research Manager, USGS Western Ecological Research Center

Damian Higgins serves as one of two Research Managers for the USGS Western Ecological Research Center.

AIMS map
Distribution of GPS-marked birds that visited the Pacific Flyway
Distribution of GPS-marked birds that visited the Pacific Flyway
Distribution of GPS-marked birds that visited the Pacific Flyway

Each dot is a GPS location collected between 2015-2023.

A group of scientists sit on the ground, working by headlamp light to get ready to measure a bat
Field crew prepares to measure and tag a bat
Field crew prepares to measure and tag a bat
Field crew prepares to measure and tag a bat

A team of biologists prepares to measure, weigh, and tag a captured bats. On the left, USGS biologist Gabe Reyes has a bat in a bag, used to separate and calm the bats. USGS biologist Julia Ersan is holding some alcohol used to ensure clean instruments and work surfaces, and USGS biologist Austin Waag is getting something out of a backpack.

A team of biologists prepares to measure, weigh, and tag a captured bats. On the left, USGS biologist Gabe Reyes has a bat in a bag, used to separate and calm the bats. USGS biologist Julia Ersan is holding some alcohol used to ensure clean instruments and work surfaces, and USGS biologist Austin Waag is getting something out of a backpack.

Small grey and white phalarope fits in one hand of scientist Andrea Mott.
Wilson's Phalarope
Wilson's Phalarope
Wilson's Phalarope

A female Wilson’s phalarope with 2-gram Sunbird PTT transmitter. Wilson's phalaropes spin around in the water to stir up invertebrates to snack on. Large flocks gather on terminal lakes in the American west before migrating as far as southern most South America.

A female Wilson’s phalarope with 2-gram Sunbird PTT transmitter. Wilson's phalaropes spin around in the water to stir up invertebrates to snack on. Large flocks gather on terminal lakes in the American west before migrating as far as southern most South America.

Stream with water running through it.
Habitat of the Mountain Yellow Legged Frog
Habitat of the Mountain Yellow Legged Frog
Habitat of the Mountain Yellow Legged Frog

Mountain yellow-legged frog habitat found in a riparian area of Los Angeles County.

Frogs in containers in riparian area
Mountain yellow-legged frogs in containers
Mountain yellow-legged frogs in containers
Mountain yellow-legged frogs in containers

Mountain yellow-legged frogs (Rana muscosa) in their transport containers being acclimated to their new habitat, Los Angeles County.

Mountain yellow-legged frogs (Rana muscosa) in their transport containers being acclimated to their new habitat, Los Angeles County.

Mountain Yellow Legged Frog
Newly released mountain yellow-legged frogs
Newly released mountain yellow-legged frogs
Newly released mountain yellow-legged frogs

Newly released mountain yellow-legged frogs (Rana muscosa), Los Angeles County. Mountain yellow-legged frogs were bread and captivity then released.

Newly released mountain yellow-legged frogs (Rana muscosa), Los Angeles County. Mountain yellow-legged frogs were bread and captivity then released.

Tools rest on the white salty dry lake bed. Field sheets, caliper, scale, binoculars and others.
Banding station at Lake Abert
Banding station at Lake Abert
Banding station at Lake Abert

Research in the field means making the most of your surroundings! Scientist Andrea Mott set up this work station on the dry lake bed of Lake Abert to get the birds banded with GPS trackers close to where they were captured. 

Research in the field means making the most of your surroundings! Scientist Andrea Mott set up this work station on the dry lake bed of Lake Abert to get the birds banded with GPS trackers close to where they were captured. 

A scientist holds out an antennae with the dramatic cliffs of Yosemite Valley in the background
Radio telemetry at Glacier Point, Yosemite
Radio telemetry at Glacier Point, Yosemite
Radio telemetry at Glacier Point, Yosemite

Austin Waag performing radio-telemetry at Glacier Point with Half Dome in the background, as part of a project tracking bats in Yosemite National Park.

Austin Waag performing radio-telemetry at Glacier Point with Half Dome in the background, as part of a project tracking bats in Yosemite National Park.

Scientists wade in shallow water as they set up a large mist net with the sheer cliffs of Yosemite Valley in the background
A triple-high mist net with El Capitan in the background
A triple-high mist net with El Capitan in the background
A triple-high mist net with El Capitan in the background

Biologists set up a triple-high mist net to capture bats with El Capitan, one of Yosemite's most iconic rock formations, in the background, as part of a study to track bats in Yosemite.

Biologists set up a triple-high mist net to capture bats with El Capitan, one of Yosemite's most iconic rock formations, in the background, as part of a study to track bats in Yosemite.

image of a biocrust (soil) with blurred trees in the background
Biocrust Dominated by Cyanobacteria
Biocrust Dominated by Cyanobacteria
Biocrust Dominated by Cyanobacteria

A community of intact biocrusts dominated by cyanobacteria was spotted during a biocrust and vegetation survey at a horse disturbance plot in Caliente, NV. The pinnacles were ~3-7cm in height.

A community of intact biocrusts dominated by cyanobacteria was spotted during a biocrust and vegetation survey at a horse disturbance plot in Caliente, NV. The pinnacles were ~3-7cm in height.

many avocets flying with mountains in the background
Avocets flying above Farmington Bay Wildlife Management Area, Utah
Avocets flying above Farmington Bay Wildlife Management Area, Utah
Avocets flying above Farmington Bay Wildlife Management Area, Utah

The Saline Lake Ecosystems IWAA Waterbird Movement Project began tagging American Avocets in March 2023 to track their movements across the landscape. Tracking data from these birds will help scientists better understand why these birds choose to use the terminal lake and wetland habitats they do in the Great Basin.

The Saline Lake Ecosystems IWAA Waterbird Movement Project began tagging American Avocets in March 2023 to track their movements across the landscape. Tracking data from these birds will help scientists better understand why these birds choose to use the terminal lake and wetland habitats they do in the Great Basin.

a sagebrush landscape with Phlox sp. growing on intact biological soil crusts
Abundant Biocrust and Phlox in Sagebrush Landscape
Abundant Biocrust and Phlox in Sagebrush Landscape
Abundant Biocrust and Phlox in Sagebrush Landscape

In this sagebrush community, there are intact biological soil crusts that are composed of cyanobacteria, lichens and mosses. Phlox sp. are growing abundantly on these biocrust communities.

In this sagebrush community, there are intact biological soil crusts that are composed of cyanobacteria, lichens and mosses. Phlox sp. are growing abundantly on these biocrust communities.

Biological soil crusts with lichens, mosses, and cyanobacteria
Biological Soil Crust Community
Biological Soil Crust Community
Biological Soil Crust Community

This is a community of biological soil crusts including scale lichens, crustose lichens, mosses, and cyanobacteria. 

Biological soil crusts are an intimate association of soil particles, cyanobacteria, algae, lichens, bryophytes, and microfungi which live within or directly on top of the uppermost millimeters of soil. (Belnap, 2003)

This is a community of biological soil crusts including scale lichens, crustose lichens, mosses, and cyanobacteria. 

Biological soil crusts are an intimate association of soil particles, cyanobacteria, algae, lichens, bryophytes, and microfungi which live within or directly on top of the uppermost millimeters of soil. (Belnap, 2003)

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