Images

A giant garter snake (Thamnophis gigas) with orange coloration, photographed during field work in Oregon.

Instructors teaching line-point intercept vegetation sampling methods to field technicians at a Bureau of Land Management Riparian & Wetland Assessment, Inventory, and Monitoring (AIM) strategy training near Elko, NV. The Pacific Northwest eDNA Laboratory is working with the BLM to incorporate eDNA sampling into the AIM strategy.

An autonomous recording unit--or ARU--deployed at Ankeny National Wildlife Refuge in Jefferson, Oregon. The ARU is set to record 5-10 minutes of audio every 30 minutes during the time of day when male bullfrogs exhibit their loud breeding calls. Audio evidence of bullfrog presence can be used for early response to invasion.

The Columbia River flowing through the Hanford reach of the arid Columbia River basin, eastern Washington. This reach is one of the few undammed segments of the Columbia River within the United States. Photograph taken from the White Bluffs, composed of sediment deposited in late Miocene and Pliocene Lake Ringold which occupied the Pasco Basin.

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

Thumbnail image of plain language summary of:

Figure 4 from Katzner, et. al., 2020

Golden eagle populations in North America are either holding steady or possibly in decline and below the number that which the environment can support.

This radiograph, or x-ray, is of a bald eagle that had ingested lead. The cluster of bright white spots in its gut are lead shotgun pellets eaten by the eagle.

Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is a federally listed threatened species. Ninety-seven percent of their range are small headwater streams in the Great Basin of North America.

This deer was shot with a lead bullet. The bright white spots scattered throughout its body are fragments of lead from that bullet. These fragments can be eaten by scavengers, such as eagles, when they feed upon a gut pile or carcass left out in the field.

Photo of three bald eagles captured on a game camera. There are two adults with a juvenile.

Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.

A stream flowing through Gifford Pinchot National Forest near Packwood Lake in Washington State.

A stream runs through Gifford Pinchot National Forest near Packwood Lake in Washington State. Fallen trees create in-stream structure that is valuable habtiat for aquatic animals.

A stream flowing through a rocky clearing in Gifford Pinchot National Forest near Packwood Lake in Washington State.

Fallen trees along a shallow stream in Gifford Pinchot National Forest, Washington

The USGS Forest and Rangeland Ecosystem Science Center (FRESC) held a groundbreaking ceremony on August 25, 2020 at the Idaho Water Science Center (IDWSC) in Boise, Idaho.

Rebecca McCaffery installing a bat acoustic detector on the outer coast of Washington state. Acoustic detectors are specialized microphones that capture the high frequency calls of bat species at night. They can be used to study bat distribution and occupancy patterns.

Instructors and field technicians discussing a groundwater-fed slope wetland during a training session for the Bureau of Land Management Riparian & Wetland Assessment, Inventory, and Monitoring (AIM) Strategy near Randolf, Utah. The Pacific Northwest eDNA Laboratory is working with the BLM to incorporate eDNA sampling into the AIM strategy.

Instructors and field technicians discussing wetland soil properties during a Bureau of Land Management Riparian & Wetland Assessment, Inventory, and Monitoring (AIM) Strategy training session near Randolf, Utah. The objective of the AIM strategy is to provide standardized monitoring for assessing natural resources on BLM public lands.