Images

One of the largest living gumbo limbo trees (Bursera simaruba).

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island

Subalpine meadow near Deer Park campground on the Olympic Peninsula in Washington.

The flower, leaves, and seed pods of a tiny but aggressive vine (Centrosema virginianum) growing beside a path in a central Florida woodland. (Scanned From Negative)

Cory Emerson taking dissolved oxygen, temperature, and salinity readings from a potential relocation site for tidewater gobies in the Point Reyes National Seashore, CA.

Erythrina shows a cluster of its black seed pods with bright scarlet mature seeds lined up within. (Scanned From Negative)

Erythrina shows a cluster of its black seed pods with bright scarlet mature seeds lined up within. (Scanned From Negative)

Erythrina shows a cluster of its black seed pods with bright scarlet mature seeds lined up within. (Scanned From Negative)

The distinctive leaves of a Cardinal bean plant (Erythrina sp.) which aid in identifying the plant when the flowers or bean pods are not present.

The flower, leaves, and seed pods of a tiny but aggressive vine (Centrosema virginianum) growing beside a path in a central Florida woodland. (Scanned From Negative)

Erythrina shows a cluster of its black seed pods with bright scarlet mature seeds lined up within. (Scanned From Negative)

The distinctive leaves of a Cardinal bean plant (Erythrina sp.) which aid in identifying the plant when the flowers or bean pods are not present.

Hydrologic measurements in rice fields consisted of continuous measurements using pressure transducers calibrated with manual readings of staff gauges.

Erythrina shows a cluster of its black seed pods with bright scarlet mature seeds lined up within. (Scanned From Negative)

Digital still photograph offshore of Half Moon Bay, California, showing a kelp greenling, encrusting sponges, red algae, cup coral, in mixed gravel, cobbles, and rugose rock outcrop with scattered shells at a depth of 9 meters.

Left Image: Managed wetland at the Yolo Bypass Wildlife Preserve (California Central Valley) showing mixed flocks of foraging birds. Photographer: M. Marvin-DiPasquale.

Aerial view of the National Elk Refuge (left) and the town of Jackson, Wyoming (right) in 2007.

Wind turbine next to a dilapidated barn

USGS researcher sampling sediment from flooded rice fields after 1 month of growth. The caged fish 'Hg bioaccumulation' experiment can be seen in the foreground.

An unidentified gray snake among the grass edging a Maryland pond.

A strip of primarily native vegetation restored around a small private pond in Garrett County, Maryland, to act as a runoff buffer and to provide habitat for wildlife.