Images

Hawkmoth flying near milkweed plant in North Dakota.  Northern Prairie Wildlife Research Center is monitoring milkweed populations across the Central United States.

Early Life Stage (ELS) tests are used as an alternative to traditional whole-animal testing methods for evaluating toxicity of chemicals. ELS for birds involve injection into the air cell of fertile eggs early in development and artificial incubation for several days at which point tissues are sampled for analysis.

Bumblebee feeding on Phacelia flower found in an established Pollinator Plot at Northern Prairie Wildlife Research Center, Jamestown, North Dakota.

Spent oil-based drilling waste land applied on an Oklahoma wheat field after harvest (July 2021).

Once thought to be extinct, the Pacific pocket mouse (Perognathus longimembris pacificus) was rediscovered in 1993 and is currently found at three population sites along the southern California coast.

Orange and black excluder device (left) will contain minerals, but intended to allow livestock access while excluding wildlife. Mineral block to the right of excluder device.

The United States is developing renewable energy resources, especially solar, at a rapid rate.

The light-footed Ridgway’s rail, a handsome but secretive waterbird that lives on tidal marshland fragments in southern California from Santa Barbara County south to Baja California, Mexico.

USGS is gathering and analyzing DNA from blood samples throughout the subspecies’ range to document the light-footed Ridgway’s rail’s genetic health.

Light trails of LED-tagged sea lampreys, part of a study of sea lamprey sex pheromone antagonists, altered pheromone cocktails that can disrupt spawning behavior.

A light trail of an LED-tagged sea lamprey, part of a study of sea lamprey sex pheromone antagonists, altered pheromone cocktails that can disrupt spawning behavior.

Sea lampreys spawning in a stream during a study that tested how sea lamprey sex pheromone antagonists influenced spawning behavior.

Spawning sea lampreys tagged for a study of sea lamprey sex pheromone antagonists.

Sea lamprey spawning during a study of sea lamprey sex pheromone antagonists, altered pheromone cocktails that can disrupt spawning behavior.

A sea lamprey tagged with a red LED light as part of a study of sex pheromone antagonists, altered sex pheromone compounds that can interfere with sea lamprey spawning.

Sea lampreys attached to lake trout in a tank at Hammond Bay Biological Station.

Greenhouse study comparing plant performance during drought will help land managers choose plant species for restoring degraded lands. To find out more, follow the Restoration Assessment and Monitoring Program of the Southwest, housed at the Southwest Biolobigical Science Center. www.ugs.gov/sbsc/ramps

This rat snake is a preserved museum specimen with snake fungal disease that was collected in Tennessee in 1973. The photo was taken at the USGS National Wildlife Health Center in 2017 as part of a study.

I Am A...Wildlife Biologist coloring page

Fly fishing for trout in one on Montana's rivers.                                                             

Greenhouse study comparing plant performance during drought will help land managers choose plant species for restoring degraded lands. To find out more, follow the Restoration Assessment and Monitoring Program of the Southwest, housed at the Southwest Biolobigical Science Center. www.ugs.gov/sbsc/ramps

Field crew enroute to a pollinator sampling site in the Northwester Great Plains ecoregion during training. Many flowers are low to the ground in this windy area.