A tree had fallen into the Marsh River near Shelly, Minnesota, and a new shoot took off right over the river.
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Tree Growing over Stream
A tree had fallen into the Marsh River near Shelly, Minnesota, and a new shoot took off right over the river.
Prairie dog and SPV bait
In this image, a Gunnison prairie dog eats a bait laden with the sylvatic plague vaccine. Prairie dogs in the wild are less likely to succumb to plague after they ingest peanut-butter-flavored bait that contains a vaccine against the disease.
In this image, a Gunnison prairie dog eats a bait laden with the sylvatic plague vaccine. Prairie dogs in the wild are less likely to succumb to plague after they ingest peanut-butter-flavored bait that contains a vaccine against the disease.
Aphanizomenon Flos-aquae Under the Microscope
Aphanizomenon is a common bloom-forming cyanobacteria, AKA, blue-green algae. Many strains produce saxitoxin and cylindrospermopsin.
Aphanizomenon is a common bloom-forming cyanobacteria, AKA, blue-green algae. Many strains produce saxitoxin and cylindrospermopsin.
Scientist taking environmental sample during WNS surveillance
Scientist taking environmental sample during WNS surveillanceScientist taking environmental samples during white-nose syndrome surveillance activities. Lawrence County, OH. August 2012.
Scientist taking environmental sample during WNS surveillance
Scientist taking environmental sample during WNS surveillanceScientist taking environmental samples during white-nose syndrome surveillance activities. Lawrence County, OH. August 2012.
Water- Control Structure on Lake Erie
Constructed water-control structure connecting a managed pool to Crane Creek wetland (Lake Erie). Structure allows critical fish passage between Lake Erie and the previously diked wetland.
Constructed water-control structure connecting a managed pool to Crane Creek wetland (Lake Erie). Structure allows critical fish passage between Lake Erie and the previously diked wetland.
Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.
Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.Biologists in North America have been studying the effectiveness of fish stocking programs ever since fish were artificially spawned, reared, and stocked in the late 1800s.
Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.
Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.
Masters student Lila Warren documented that muskellunge in her study rivers were reproducing all by themselves and hatchery fish, in all likelihood, do not need to be stocked to sustain the fishery.Biologists in North America have been studying the effectiveness of fish stocking programs ever since fish were artificially spawned, reared, and stocked in the late 1800s.
Gull Necropsy
USGS AMBLE coordinator Jenny Chipault inspects a ring-billed gull submitted for avian botulism type E testing. Some sick and dead gulls found on Lake Michigan beaches in 2011 had avian botulism.
USGS AMBLE coordinator Jenny Chipault inspects a ring-billed gull submitted for avian botulism type E testing. Some sick and dead gulls found on Lake Michigan beaches in 2011 had avian botulism.
Set up to capture bats for white-nose syndrome surveillance activities
Set up to capture bats for white-nose syndrome surveillance activitiesMist-net and harp trap set up to capture bats for white-nose syndrome surveillance activities. Breckinridge County, KY. July 2012.
Set up to capture bats for white-nose syndrome surveillance activities
Set up to capture bats for white-nose syndrome surveillance activitiesMist-net and harp trap set up to capture bats for white-nose syndrome surveillance activities. Breckinridge County, KY. July 2012.
Scientist taking environmental samples during WNS surveillance
Scientist taking environmental samples during WNS surveillanceScientist taking environmental samples during white-nose syndrome surveillance activities. Breckinridge County, IN. July 2012.
Scientist taking environmental samples during WNS surveillance
Scientist taking environmental samples during WNS surveillanceScientist taking environmental samples during white-nose syndrome surveillance activities. Breckinridge County, IN. July 2012.
Scientist taking a skin swab sample to test for presence of Pd
Scientist taking a skin swab sample to test for presence of PdScientist taking a skin swab sample to test for presence of Pd. Monroe County, IN. July 18, 2012.
Scientist taking a skin swab sample to test for presence of Pd
Scientist taking a skin swab sample to test for presence of PdScientist taking a skin swab sample to test for presence of Pd. Monroe County, IN. July 18, 2012.
Wind turbines around a farm house
Wind turbines around a farm house
Green Sea Turtle Swimming in Dry Tortugas National Park
Green Sea Turtle Swimming in Dry Tortugas National ParkA green sea turtle, sporting a USGS satellite tag, swims the waters of Dry Tortugas National Park, Florida, USA. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S. Fish & Wildlife Service (USFWS) and the Florida Fish & Wildlife Conservation Commission (FWC) under conditions not harmful to this or other turtles.
Green Sea Turtle Swimming in Dry Tortugas National Park
Green Sea Turtle Swimming in Dry Tortugas National ParkA green sea turtle, sporting a USGS satellite tag, swims the waters of Dry Tortugas National Park, Florida, USA. Note: All marine turtle images taken in Florida were obtained with the approval of the U.S. Fish & Wildlife Service (USFWS) and the Florida Fish & Wildlife Conservation Commission (FWC) under conditions not harmful to this or other turtles.
Sphecid wasp nectaring on Canada thistle
Image of a Sphecid wasp, Specidae sp. nectaring on Canada thistle, (Cirsium arvense).
Image of a Sphecid wasp, Specidae sp. nectaring on Canada thistle, (Cirsium arvense).
Biological Science Technician surveying breeding birds
Biological Science Technician surveying breeding birdsBiological Science Technician surveying breeding birds on both idle and hayed portions of a CRP grassland in Sheridan County, Montana
Biological Science Technician surveying breeding birds
Biological Science Technician surveying breeding birdsBiological Science Technician surveying breeding birds on both idle and hayed portions of a CRP grassland in Sheridan County, Montana
Pacific Chorus Frog
A Pacific Chorus frog (Pseudacris regilla) in a meadow located in Yosemite National Park.
A Pacific Chorus frog (Pseudacris regilla) in a meadow located in Yosemite National Park.
Double-crested Cormorant
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its wing chord.
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its wing chord.
Double-crested Cormorant
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its tarsus.
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its tarsus.
Scientist Respond to Wildlife Disease Events
USGS scientists from the National Wildlife Health Center respond to wildlife disease events in the field.
USGS scientists from the National Wildlife Health Center respond to wildlife disease events in the field.
Double-crested Cormorant
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its wing chord.
USGS scientists examine a Double-crested Cormorant (Phalacrocorax auritus) and measure the length of its wing chord.
Larval Samples
Larval samples collected near the confluence of the Missouri and Mississippi Rivers.
Larval samples collected near the confluence of the Missouri and Mississippi Rivers.
Sturgeon Larva
Sturgeon larva captured near the confluence of the Missouri and Mississippi Rivers.
Sturgeon larva captured near the confluence of the Missouri and Mississippi Rivers.