Coral reefs are prone to phase shifts where they quickly transition from coral-dominated to a uniformity of other organisms, typically algae. The Palmyra Atoll National Wildlife Refuge in the Central Pacific is a unique case where a transition from corals to corallimorphs occurred.
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Images from the National Wildlife Health Center.
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Corallimorph infestation on coral reef 2
Coral reefs are prone to phase shifts where they quickly transition from coral-dominated to a uniformity of other organisms, typically algae. The Palmyra Atoll National Wildlife Refuge in the Central Pacific is a unique case where a transition from corals to corallimorphs occurred.
Corallimorph infestation on coral reef 3
Coral reefs are prone to phase shifts where they quickly transition from coral-dominated to a uniformity of other organisms, typically algae. The Palmyra Atoll National Wildlife Refuge in the Central Pacific is a unique case where a transition from corals to corallimorphs occurred.
Coral reefs are prone to phase shifts where they quickly transition from coral-dominated to a uniformity of other organisms, typically algae. The Palmyra Atoll National Wildlife Refuge in the Central Pacific is a unique case where a transition from corals to corallimorphs occurred.
Tables are placed below bat boxes to collect guano from roosting bats
Tables are placed below bat boxes to collect guano from roosting bats during spring/summer. NWHC is investigating use of community guano samples from summer roosts for Pseudogymnoascus destructans (Pd) surveillance.
Tables are placed below bat boxes to collect guano from roosting bats during spring/summer. NWHC is investigating use of community guano samples from summer roosts for Pseudogymnoascus destructans (Pd) surveillance.
Scientist measuring the length of the forearm of a bat
Here a scientist is measuring the length of the forearm of a bat captured in Dane County, Wisconsin. General morphometric data are collected from each bat captured.
Here a scientist is measuring the length of the forearm of a bat captured in Dane County, Wisconsin. General morphometric data are collected from each bat captured.
USGS scientist swabbing a Central Newt in Wisconsin to look for bsal
USGS scientist swabbing a Central Newt in Wisconsin to look for an invasive fungus, Batrachochytrium salamandrivorans (Bsal).
USGS scientist swabbing a Central Newt in Wisconsin to look for an invasive fungus, Batrachochytrium salamandrivorans (Bsal).
CWD predictive modeling
This figure shows the measured and forecasted growth and spread of CWD in white-tailed deer in th core area where CWD occurs in Wisconsin, USA.
This figure shows the measured and forecasted growth and spread of CWD in white-tailed deer in th core area where CWD occurs in Wisconsin, USA.
Home Zip Codes of Hunters Harvesting Deer in 4 WI Counties 2016-17
Home Zip Codes of Hunters Harvesting Deer in Dane, Iowa, Richland, and Sauk Counties in Wisconsin from 2016-2017
Home Zip Codes of Hunters Harvesting Deer in Dane, Iowa, Richland, and Sauk Counties in Wisconsin from 2016-2017
Plants grown to investigate the role of prion contaminated plants in CWD transmission dynamics
Plants were grown in prion-spiked growth media at the National Wildlife Health Center to investigate the role of prion contaminated plants in CWD transmission dynamics.
Plants were grown in prion-spiked growth media at the National Wildlife Health Center to investigate the role of prion contaminated plants in CWD transmission dynamics.
Chinese Firebelly Newt
A Chinese firebelly newt (Cynops orientalis), the salamander species recently found to be infected with the spring viraemia of carp virus, or SVCV.
A Chinese firebelly newt (Cynops orientalis), the salamander species recently found to be infected with the spring viraemia of carp virus, or SVCV.
Chinese Firebelly Newt
A Chinese firebelly newt (Cynops orientalis), the first salamander species found to be infected with the spring viraemia of carp virus.
A Chinese firebelly newt (Cynops orientalis), the first salamander species found to be infected with the spring viraemia of carp virus.
NWHC pathologist performs skin biopsy from North American racer
National Wildlife Health Center pathologist Susan Knowles obtains a skin biopsy for analysis under a microscope from a Coluber constrictor (North American racer) submitted for diagnostic testing.
National Wildlife Health Center pathologist Susan Knowles obtains a skin biopsy for analysis under a microscope from a Coluber constrictor (North American racer) submitted for diagnostic testing.
Images of heart, pancreas, lung, and brain tissue from gyrfalcon
A. Heart, multifocal and focally extensive necrotizing myocarditis. H&E. Inset: Section of same heart tissue; immunohistochemical staining of influenza A virus antigen is strongly positive in areas of necrosis. B. Pancreas, multifocal and focally extensive necrosis of the acinar epithelium. H&E.
A. Heart, multifocal and focally extensive necrotizing myocarditis. H&E. Inset: Section of same heart tissue; immunohistochemical staining of influenza A virus antigen is strongly positive in areas of necrosis. B. Pancreas, multifocal and focally extensive necrosis of the acinar epithelium. H&E.
NWHC Necropsy
Necropsy of bird performed by NWHC pathologist.
Necropsy of bird performed by NWHC pathologist.
UV Light Showing White-Nose Syndrome in Bat's Wing
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
Gophersnake with crusting of scales on the head due to Paranannizziopsis sp. infection
Gophersnake with crusting of scales on the head due to Paranannizziopsis sp. infection.
Gophersnake with crusting of scales on the head due to Paranannizziopsis sp. infection.
A little brown bat being released shortly after samples are collected
A little brown bat is being released shortly after samples are collected.
A little brown bat is being released shortly after samples are collected.
Bat being swabbed to test for presence of Pd DNA
A moist swab is passed over the surface of the forearm and muzzle of each bat. The swab will be analyzed in the lab for the presence of Pseudogymnoascus destructans DNA.
A moist swab is passed over the surface of the forearm and muzzle of each bat. The swab will be analyzed in the lab for the presence of Pseudogymnoascus destructans DNA.
Red fox (Vulpes vulpes) in prairie
A red fox (Vulpes vulpes) at the USGS National Wildlife Health Center prairie.
A red fox (Vulpes vulpes) at the USGS National Wildlife Health Center prairie.
Sanderling (Calidris alba)
Sanderling (Calidris alba) walking on sand, seen during field work in Iceland in 2014.
Sanderling (Calidris alba) walking on sand, seen during field work in Iceland in 2014.
Northern gannet (Morus bassanus)
Northern gannet (Morus bassanus) seen during field work in Iceland in 2013.
Northern gannet (Morus bassanus) seen during field work in Iceland in 2013.