Sets in this Collection
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BEN Patient
Balkan endemic nephropathy (BEN) patient from a BEN village in Romania. The photo was taken at a dialysis clinic in Romania where the patient traveled every 2 to 3 days to receive dialysis, the principal treatment option for people with BEN. This patient died from complications of BEN within a year ...
Location: Romania
Sampling a Sprint in BEN Village
USGS Researcher Calin Tatu sampling a spring in a Balkan endemic nephropathy (BEN) village in Romania. Samples of water are tested for the presence of toxic organic compounds that are linked to BEN....
Location: Romania
Kidney Size Comparison of BEN Victims
Normal size kidney (left) and a Balkan endemic nephropathy (BEN) kidney (right). The BEN kidney is reduced by one third compared to a normal kidney. The collapse of the kidney structure in the BEN kidney causes the organ to cease to function, resulting in uremia (blood poisoning) and requiring dialy...
Location: USA
Pliocene Lignite Coal from BEN Village
Closeup of Pliocene lignite coal from a Balkan endemic nephropathy (BEN) village in Serbia. Lignite is low rank, or relatively unaltered (soft, or “brown”) coal, and is characterized by a brownish color and appearance that often resembles wood. This lignite releases copious amounts of dissolved orga...
Location: Serbia
BEN Sampling in Serbia
USGS scientists Bill Orem (left) and Terry Lerch (right) recording data and collecting samples at a Balkan endemic nephropathy (BEN) household in Serbia. BEN patients typically come from small villages and are often farmers....
Location: Serbia
Pliocene Lignite Bed
Seam or bed of Pliocene lignite from a mine in the Balkan endemic nephropathy (BEN) area of Romania. Rainwater falling onto the surface penetrates into the ground, becoming ground water, and leaches toxic organic substances from this coal. The ground water continues to BEN villages in the valleys be...
Location: Romania
BEN Sampling in Serbia
USGS scientist Bill Orem (left) and Adrian Muntean, a colleague from Romania, sampling water from a well in a Balkan endemic nephropathy (BEN) household in Serbia. The scientists will analyze the water for the presence of coal-derived organic substances dissolved in the water. The USGS works closely...
Location: Serbia
Drinking Well in a BEN Village
A well, typical of those found in both Balkan endemic nephropathy (BEN) villages and non-BEN villages in the affected countries. Wells and springs are the primary drinking water supplies for these rural villages. In the BEN areas, these shallow wells are fed by groundwater that leaches nearby immatu...
Location: USA
Exposing Pliocene Lignite Bed Near a BEN Village
Nikola Pavlovic, a kidney specialist and a USGS collaborator on Balkan endemic nephropathy (BEN) studies from Serbia, is shown exposing a small Pliocene lignite bed near a BEN village in the Vratza area of Bulgaria. The Pliocene lignite seams vary greatly in size and extent. BEN villages are always ...
Location: Bulgaria
Pacific Brant family in Alaska
Pacific brant family on the Yukon-Kuskokwim Delta, Alaska. ...
Location: USA
Yellow Legged Frog
USGS scientists found this adult mountain yellow-legged frog on June 10 in Tahquitz Creek, a rediscovered population
of the endangered frog in the San Jacinto Wilderness, San Bernardino National Forest, California....
Location: CA, USA
Assessing Sites for Yellow Legged Frog
Assessing suitable sites in southern California
for reintroducing endangered southern mountain yellow-legged frogs, USGS scientists rediscovered a population in the San Jacinto Wilderness, 50 years since this frog was last seen there....
Location: CA, USA
Students recording bird band recovery records
Students Anaga Nmagu and Danielle Travers, hired with ARRA funds, are converting more than one million hand-written bird band recovery records into digital format at the USGS Patuxent Wildlife Research Center. Once digitized, these invaluable recovery records will be linked to the Bird Banding La...
Location: Reston, VA, USA
Agapostemon Splendens (Sweat Bee)
A male Agapostomen splendens: A bee of sandy areas also known as the "sweat bee."...
Location: USA
Panoramic of Biscayne Bay
Facing east, a panoramic view of Biscayne Bay. The mainland is seen at far
right. Biscayne Bay is an estuary, a place where freshwater and salt water
meet. Freshwater flow from the land supplies the bay with nutrients....
Location: FL, USA
Marine Vegetation and Rocks
Marine vegetation and rocks seen through the surface of Biscayne Bay waters....
Location: FL, USA
Flooded marsh
The marsh of Water Conservation Area 3 as seen looking north of I-75
(Alligator Alley). Spatterdock are seen in the foreground....
Location: FL, USA
Flooded marsh
Flooded marshes of Water Conservation Area 3 (WCA-3), seen north of I-75
(Alligator Alley)....
Location: FL, USA
Flock of birds
A large flock of birds, mostly egrets, resting and flying along a canal on Highway
833 (a short drive north off of I-75 (Alligator Alley))....
Location: FL, USA
Alligators along canal
Two alligators lying along a canal, just north off of I-75 (Alligator Alley) onto
Highway 833....
Location: FL, USA
Yellowtop
Yellowtop in bloom along the roadside, just south of the US 27/I-75 (Alligator
Alley) intersection....
Location: FL, USA
Pumping station
Looking northeast, at an inflow pumping station located near the northeast
corner of Stormwater Treatment Area (STA) 1 West....
Location: FL, USA
Tamiami Canal
Looking eastward at the Tamiami Canal. Water Conservation Area 3 is to the
left and US 41 (Tamiami Trail) is to the right....
Location: FL, USA
Panoramic of Water Conservation Area 3
Panoramic of Water Conservation Area 3 landscape....
Location: FL, USA
White-tailed deer
A male, white-tailed deer that had recently lost an antler, foraging in the wet
prairie at Corkscrew Swamp Sanctuary, Florida....
Location: FL, USA
Morning glory
A morning glory resting amid ferns, alongside the Fakahatchee Strand State
Preserve boardwalk....
Location: FL, USA
Great Blue Heron and Great Egret
A great blue heron and great egret in the parking lot by the Big Cypress Bend
boardwalk at Fakahatchee Strand State Preserve. The heron is enjoying a fish
dinner thanks to the hunting skills of the egret. While the egret had initially
held a fish in it's beak, the heron’s squabbling caused the...
Location: FL, USA
Brown Pelican
Adult brown pelican posing on a boat dock at Everglades City, Florida....
Location: FL, USA
Mangrove Key Islets
Beyond the mangrove key islets that make up the Ten Thousand Islands, lies
the Gulf of Mexico. The Ten Thousand Islands are comprised of hundreds of
mangrove islands that extend northward from the northwest corner of
Everglades National Park. These uninhabited islands stretch for 60-miles
al...
Location: FL, USA
Waterbirds
Small waterbirds resting atop a limestone outcropping in Chokoloskee Bay....
Location: FL, USA
Royal terns
Royal terns atop a channel marker in the Ten Thousand Islands waterway....
Location: FL, USA
Osprey
Osprey family in nest, built atop one of the mangrove islands that make up Ten
Thousand Islands....
Location: FL, USA
Brackish Pond Community
Looking from an observation deck, at Rookery Bay National Estuarine
Research Reserve, onto a flock of birds resting in a brackish (somewhat salty)
pond community. Mangrove islands grow inside and along the edges of the
pond....
Location: FL, USA
American Beauty Berry Shrub
At the end of the boardwalk behind the Briggs Nature Center at Rookery Bay
National Estuarine Research Reserve, clusters of magenta fruits surround the
stems of this American beauty berry shrub. ...
Location: FL, USA
Invertebrate Sampler on the Mississippi River
Biological sampling devices are deployed on the upper Mississippi River to collect invertebrates for science. Each sampler is attached to a floating buoy and multiple samplers are placed together near a wing dam structure on the river to study the river's food web and productivity....
Location: La Crosse, WISCONSIN, USA
Creosote scrub habitat
Creosote scrub habitat (one type of preferred desert tortoise habitat) in the Mojave Desert....
Location: USA
map showing predicted habitat potentional for tortoise
This map shows the spatial representation of the predicted habitat potential index values for desert tortoise in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona. Map: USGS. ...
Location: USA
Mojave Desert Tortoise
Mojave Desert Tortoise found in Piute Valley in Clark County, Nevada, in
2005...
Location: NV, USA
Saguaro Cactus
Arizona saquaro will be one of the species looked at by USA-NPN volunteers....
Location: AZ, USA
Eggs in Sparrow Nest
Clay-colored sparrow nest....
Location: USA
California Poppies
California poppies....
Location: CA, USA
Canopy of mangroves
Looking down from the Anne Kolb Nature Center's five-story observation tower at a thick canopy of mangroves....
Location: FL, USA
Fiddler crab burrows
Fiddler crab burrows abound in and around the intricate red mangrove root
system submerged in the muddy tidal flats at West Lake Park....
Location: FL, USA
Red mangrove trees
Young red mangrove trees grow among the prop roots of mature red mangroves
at West Lake Park....
Location: FL, USA
Mangrove crab
A mangrove crab camouflaged on the trunk of a mangrove tree at West Lake
Park....
Location: FL, USA
Red mangrove
A red mangrove and its intricate aerial root system in west lake waters....
Location: FL, USA
Red mangroves
A tangle of red mangroves and their roots at low tide in West Lake Park....
Location: FL, USA
Mangroves and mud flats
Mangroves bordering the West Lake mud flats exposed by low tide....
Location: FL, USA
Male fiddler crab
A male fiddler crab at West Lake Park....
Location: FL, USA
Red mangrove leaves
Leaf detail of red mangrove at West Lake Park....
Location: FL, USA
Black mangroves
A group of black mangroves at West Lake Park....
Location: FL, USA
Mangroves and mud flats
Low tide in the mangrove forest of West Lake Park....
Location: FL, USA
Mangroves and water
Looking down from the Anne Kolb Nature Center's five-story observation tower
at an extensive mangrove canopy and West Lake....
Location: FL, USA
Freshwater swamp
Freshwater swamp in front of the Loxahatchee National Wildlife Refuge Visitor
Center....
Location: FL, USA
Freshwater cypress swamp
Freshwater, cypress swamp at the Loxahatchee National Wildlife Refuge....
Location: FL, USA
Freshwater swamp
Freshwater swamp covered with the aquatic plants duckweed and water
spangles, at Loxahatchee National Wildlife Refuge....
Location: FL, USA
Cypress trees
Ephiphytes thrive among the tall cypress trees at Loxahatchee National Wildlife
Refuge....
Location: FL, USA
Ferns
Many different fern species prosper in the water and shade of a cypress swamp
at Loxahatchee National Wildlife Refuge....
Location: FL, USA
Lichen
Red patches of "baton-rouge" lichen stand out against the green understory of a
cypress swamp at Loxahatchee National Wildlife Refuge....
Location: FL, USA
Cypress swamp
A boardwalk trail through the cypress swamp at Loxahatchee National Wildlife
Refuge....
Location: FL, USA
Page: 1 of 3, Total Results: 143
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U.S. Geological Survey