Images

Climate change in the form of reduced snowfall in mountains  is causing powerful and cascading shifts in montane plant and bird communities through the increased ability of elk to stay at high elevations over winter and consume plants. Here, you can see an example of the difference in aspen growth inside versus outside a fence that excludes elk.

Contamination from commercial products such as nonstick cookware and stain repellents could reduce the reproduction of tree swallows nesting in Minnesota and Wisconsin.

Researchers setting a trap to collect specimens in nearshore coastal waters

USGS Hydrographer measures streamflow at Birds Point-New Madrid floodway using a tethered acoustic Doppler current profiling from a moving boat. USGS scientists are measuring the amount of water spilling into the New Madrid floodway as a result of the recent intentional breaching of the Birds Point Levee in Missouri in support of the Corps of Engineers operation.

USGS Missouri Water Science Center Deputy Director near inflow/outflow of the levee breach near New Madrid, MO. USGS scientists are measuring the amount of water spilling into the New Madrid floodway as a result of the recent intentional breaching of the Birds Point Levee in Missouri in support of the Corps of Engineers operation.

USGS Arkansas Water Science Cneter technicians measuring the flow across a US Highway being passed by a fan boat.

Pacific lamprey ammocoete, tail pattern.

This bighead carp was collected on the Illinois River to learn more about the anatomy and physiology of Asian carp. This information will guide the development of potential biological or chemical controls as part of an integrated pest management approach for natural resource managers.

Helicopters assisting USGS scientists in Everglades National Park.

USGS divers Steve Rubin and Reg Reisenbichler laying out a survey transect. Completing his 12th dive at the site in 2023, Rubin has been conducting dive surveys around the mouth of the Elwha River for over a decade as part of an evaluation of ecosystem health and recovery since the Elwha dams were breached in 2011.

These silver and bighead carp were collected on the Illinois River to learn more about the anatomy and physiology of Asian carp. This information will guide the development of potential biological or chemical controls as part of an integrated pest management approach for natural resource managers.

USGS National Flood Specialist answers questions for CNN at the Birds Point-NewMadrid Floodway. USGS scientists are measuring the amount of water spilling into the New Madrid floodway as a result of the recent intentional breaching of the Birds Point Levee in Missouri in support of the Corps of Engineers operation.

Yukon River at Pilot Station AK ice movement during breakup.

Shorebirds feeding on a diked-off area of former intertidal mudflats at a reclamation project in Bohai Bay, Yellow Sea, China. The substrate the birds are feeding on is mud and sand that has been pumped into the impoundment from beyond the levee (dredge in background).

Pacific lamprey, Hamma-Hamma River, dwarf adult.

River lamprey (L. ayresii), macrophthalmia, dentition.

Frog found by Dazey waterway site 3.

North Dakota Discovery Farms Underwood Farm owned and operated by Doyle and Patsy Johannes and their family since 19.4. Located west of Underwood, North Dakota. In 2008, Underwood Farm became the first farm in the North Dakota Discovery Farms project.

Discovery Farm Dazey waterway site 3 located southeast of Dazey, North Dakota. Dazey waterway saite 3 is the most downstream data shelter at farm- added larger 2.5 foot flume and reinforced metal weir after 2009 spring runoff flow damaged site.

USGS employee Tedd Wallace taking flow measurments with a teathered boat on the Black River at Black Rock, AR.  Waters reached 16 feet above floodstage.

April 27, 2011, flooding of the Souris (Mouse) River near Westhope, North Dakota. The small building is the U.S. Geological Survey gage house and is normally on the river bank and raised so that one needs to take stairs up to get into the gage house. There is also an access road next to the gage house and electrical pole.