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WRP Sabine Parish, Louisiana
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Location: Sabine Parish, LA, USA
WRP St. Landry Parish, Louisiana
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Location: St. Landry Parish, LA, USA
Cover Image: USGS Circular 1381
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Location: Lake Mead, NV, USA
Razorback Sucker Fish
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Location: Lake Mead, NV, USA
Sampling Fish
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Location: Lake Mead, NV, USA
Water-quality Data-Collection Platform
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Location: Lake Mead, NV, USA
Boulder Basin, Lake Mead
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Location: Lake Mead, NV, USA
Hoover Dam and Lake Mead
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Location: Lake Mead, NV, USA
Disappearing Shorebird Habitat
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Location: China
Drift and Retention of Sturgeon Larvae
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Location:
Drift and Retention of Sturgeon Larvae
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Location:
R/V Lucien Brush
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Location:
Habitat Mapping
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Location:
Wrentit Genetic Isolation Map
This map of the Thousand Oaks, Calif. area visualizes the degree of genetic isolation being experienced by the wrentit (Chamaea fasciata), a small songbird. USGS and National Park Service biologists discovered that as urban development fragmented the Santa Monica Mountains scrubland into isolated "h...
Location: CA, USA
Wrentit
The wrentit (Chamaea fasciata) is a small, monagamous songbird found in California's coastal scrublands. Despite its ability to fly, yet USGS and National Park Service biologists are finding signs of genetic isolation in a Southern California wrentit population. As urban development fragmented the S...
Location: CA, USA
Side Blotched Lizard
The side-blotched lizard (Uta stansburiana) is a relatively common and widespread lizard in Southern California. It is smaller and prefers more open habitat than the related Western fence lizard, yet USGS and National Park Service biologists are finding signs of genetic isolation in both species. As...
Location: CA, USA
Western Fence Lizard
The Western fence lizard (Sceloporus occidentalis) is a relatively common and widespread lizard in Southern California. It is larger and prefers less open habitat than the related side-blotched lizard, yet USGS and National Park Service biologists are finding signs of genetic isolation in both speci...
Location: CA, USA
Western Skink
The Western skink (Plestiodon skiltonianus) is a relatively common and widespread lizard in Southern California. It is more secretive and prefers more grassy habitat than the Western fence lizard or the side-blotched lizard, yet USGS and National Park Service biologists are finding signs of genetic ...
Location: CA, USA
Tracking Radio-Tagged Yellow-Rumped Warbler
Dave Slager (Ohio State Univ.) tracks a radio-tagged yellow-rumped warbler to determine habitat use and length of stay during migration stopover at Trempealeau National Wildlife Refuge. This was a collaborative project involving USGS, USFWS and Ohio State Univ....
Location: Trempealeau, WI, USA
From Bluff to Backwater
This is an aerial view of Pool 7 of the Mississippi River south of Trempealeau, WI. This photo highlights the different habitats for plants and wildlife from the bluffs that parallel the river to its quiet backwaters. Balanced with that is the fact that the Mississippi River is a commercial highway ...
Location: Trempealeau, WI, USA
Accessing Hurricane-Produced Mudflat BSC
Mudflats (open water in background) derived via erosion and habitat conversion from former mangrove forests often have a band of mangroves adjacent to the creek bank. Here a researcher accesses a mudflat at high tide to make measurements....
Location: Everglades National Park, FL, USA
GCC BSC Set Block Net
Setting block net across an intertidal rivulet draining a hurricane-derived mudflat. Net is retrieved at low tide to obtain an estimate of fish catch. Fish density was found to be greater in waters draining natural tidal forests than in waters from mudflats formed as a result of landfall of a Cate...
Location: Everglades National Park, FL, USA
Hydrological Measurements
Estimating volume of water discharged from fish sampling locations within mangrove forests is necessary to derive fish density estimates per volume. Fish density was found to be greater in waters draining natural tidal forests than in waters from mudflats formed as a result of landfall of a Categor...
Location: Everglades National Park, FL, USA
Red Mangrove trees
The seedlings of Red Mangrove trees germinate from fruits while still attached to the trees. Here many are growing within the roots of adult trees....
Location: VI, 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
Water Catchment
Wildlife biologists construct a water catchment for bighorn sheep on Vulcan Mountain in Ferry County, Washington....
Location: WA, USA
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U.S. Geological Survey
