Ecosystems

The image shows sattelite relectance data that can be accessed using

Locations of barred owl sightings recorded during 2015 owl monitoring activities. Barred owls were lethally removed from the areas highlighted in pink. Supporting data is found at https://doi.org/10.3133/ofr20201089.

Locations of barred owl sightings recorded during 2020 owl monitoring activities. Barred owls were lethally removed from the areas highlighted in pink. Supporting data is found at https://doi.org/10.3133/ofr20201089.

Barred owls spread west during the 1900s and today completely overlap the range of the northern spotted owl.

Welcome to the "The I Am A..." series, a whiteboard animation video series highlighting USGS careers. The concept is to show "what society (or my mom) thinks I do" compared with "what I really do." One image captures a more whimsical representation of a "scientist" and the second demonstrates a more accurate representation of what we really look like. This video is about a

Welcome to another episode of Outstanding in the Field, the U.S. Geological Survey’s podcast series produced by the Ecosystems Mission Area. We highlight our fun and fascinating fieldwork studying ecosystems across the country. Today we’ll be discussing tiny communities that are found on the surface of the soil in the harsh environments of cold and hot deserts. These often

Five tule white-fronted geese flying over Summer Lake Wildlife Area, the primary stopover site for this species on its fall migration.

Six tule white-fronted geese flying over Summer Lake Wildlife Area, the primary stopover site for this species on its fall migration.

Tule white-fronted geese get ready to land at Summer Lake Wildlife Area in Oregon. The geese turn upside down and sideways to drop altitude quickly to land, a behavior known as "whiffling" or "maple leafing."

Five tule white-fronted geese take off from Summer Lake Wildlife Area, the primary stopover site for this species on its fall migration.

I Am An...Ecotoxicologist