This tadpole shows signs of a severe Perkinsea infection.
William Barichivich
William "Jamie" Barichivich is a Wildlife Biologist at the USGS Wetland and Aquatic Research Center.
During his tenure with USGS he has studied a wide variety of organisms including marine turtles, sturgeon, and for the last 10 years, amphibians. Research has taken him from the Everglades in South Florida to Glacier National Park in Montana and as far west as Palau. He has a broad interest in a variety of topics including road mortality of wildlife, wetland hydrology, and amphibians.
Science and Products
Vulnerability of Mole Skinks to Sea-Level Rise
Mole skinks that occur on Florida’s islands rely on sand beaches, beach berms, and dunes, making them particularly vulnerable to sea level rise and storm surge. USGS researchers predicted the impacts of sea level rise and storm surge on habitat for the Florida Keys mole skink ( Plestiodon egregius egregius), the Cedar Key mole skink ( P. e. insularis), and the Egmont Key mole skink (known from a...
Predicting Sea-Level Rise Impacts to Barrier Island Habitats
Researchers at WARC are determining if temporal mismatches between digital elevation models and land cover data can impact estimates of inundation of beach habitat for barrier islands and low-lying beaches off the Gulf Coast of Florida.
Population Persistence of the Ornate Chorus Frog Across Its Distribution
The ornate chorus frog, once common throughout its range, appears to be experiencing population declines. USGS has partnered with the Florida Fish and Wildlife Conservation Commission to assess the ornate chorus frog population status across its distribution.
Sea-Level Rise and Florida’s Island Biodiversity
While islands are some of the most biodiverse places on earth, they are also among the most threatened. Researchers from WARC and Florida Fish and Wildlife Conservation Commission are assessing the vulnerability of Florida’s coastal islands to inundation from sea-level rise and estimating potential loss of the terrestrial biodiversity on Florida’s islands.
How Wildlife Respond to Tropical Cyclones: Short-Term Tactics and Long-Term Impacts
USGS is collaborating with the University of Florida to describe the diverse and fascinating tactics demonstrated by wildlife to survive tropical cyclones, which can aid in understanding the impact environmental change is having on wildlife and provide insights into how those impacts may be mitigated.
Informing Future Condition Scenario Planning for Habitat Specialists of the Imperiled Pine Rockland Ecosystem of South Florida
South Florida's pine rockland ecosystem represents less than 3% of its original extent. This project will evaluate habitat conditions for two pine rockland snake species to develop future habitat condition scenarios for Species Status Assessments.
Developing Future Habitat Condition Scenarios for Wildlife in the Imperiled Pine Rockland Ecosystem of South Florida
The pine rockland ecosystem is found only in south Florida and the Bahamas and provides important habitat for numerous rare and endemic plants and animals. These include 18 species that are already federally listed as threatened or endangered and four other species petitioned for listing that are scheduled for development of Species Status Assessments (SSAs). Today, south Florida’s pine...
Monitoring of Amphibians at St. Marks National Wildlife Refuge in Northwest Florida
Freshwater wetlands provide critical habitat for a diverse array of organisms, including many amphibians. Yet, under the threat of climate change, these habitats are among the most imperiled ecosystems on Earth.
Population Demography and Food Web Analysis of Large Aquatic Salamanders (Siren and Amphiuma) in North Florida
Understanding amphibian's life-histories can help predict how they may persist in aquatic habitats in the face of droughts and other climate change-associated events.
Adaptive Habitat Conservation for Flatwoods Salamanders
USGS scientists investigate adaptive habitat conservation for Flatwoods salamanders.
Tadpole with SPI
This tadpole shows signs of a severe Perkinsea infection.
Tadpole with organ failure
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.
Science and Products
Vulnerability of Mole Skinks to Sea-Level Rise
Mole skinks that occur on Florida’s islands rely on sand beaches, beach berms, and dunes, making them particularly vulnerable to sea level rise and storm surge. USGS researchers predicted the impacts of sea level rise and storm surge on habitat for the Florida Keys mole skink ( Plestiodon egregius egregius), the Cedar Key mole skink ( P. e. insularis), and the Egmont Key mole skink (known from a...
Predicting Sea-Level Rise Impacts to Barrier Island Habitats
Researchers at WARC are determining if temporal mismatches between digital elevation models and land cover data can impact estimates of inundation of beach habitat for barrier islands and low-lying beaches off the Gulf Coast of Florida.
Population Persistence of the Ornate Chorus Frog Across Its Distribution
The ornate chorus frog, once common throughout its range, appears to be experiencing population declines. USGS has partnered with the Florida Fish and Wildlife Conservation Commission to assess the ornate chorus frog population status across its distribution.
Sea-Level Rise and Florida’s Island Biodiversity
While islands are some of the most biodiverse places on earth, they are also among the most threatened. Researchers from WARC and Florida Fish and Wildlife Conservation Commission are assessing the vulnerability of Florida’s coastal islands to inundation from sea-level rise and estimating potential loss of the terrestrial biodiversity on Florida’s islands.
How Wildlife Respond to Tropical Cyclones: Short-Term Tactics and Long-Term Impacts
USGS is collaborating with the University of Florida to describe the diverse and fascinating tactics demonstrated by wildlife to survive tropical cyclones, which can aid in understanding the impact environmental change is having on wildlife and provide insights into how those impacts may be mitigated.
Informing Future Condition Scenario Planning for Habitat Specialists of the Imperiled Pine Rockland Ecosystem of South Florida
South Florida's pine rockland ecosystem represents less than 3% of its original extent. This project will evaluate habitat conditions for two pine rockland snake species to develop future habitat condition scenarios for Species Status Assessments.
Developing Future Habitat Condition Scenarios for Wildlife in the Imperiled Pine Rockland Ecosystem of South Florida
The pine rockland ecosystem is found only in south Florida and the Bahamas and provides important habitat for numerous rare and endemic plants and animals. These include 18 species that are already federally listed as threatened or endangered and four other species petitioned for listing that are scheduled for development of Species Status Assessments (SSAs). Today, south Florida’s pine...
Monitoring of Amphibians at St. Marks National Wildlife Refuge in Northwest Florida
Freshwater wetlands provide critical habitat for a diverse array of organisms, including many amphibians. Yet, under the threat of climate change, these habitats are among the most imperiled ecosystems on Earth.
Population Demography and Food Web Analysis of Large Aquatic Salamanders (Siren and Amphiuma) in North Florida
Understanding amphibian's life-histories can help predict how they may persist in aquatic habitats in the face of droughts and other climate change-associated events.
Adaptive Habitat Conservation for Flatwoods Salamanders
USGS scientists investigate adaptive habitat conservation for Flatwoods salamanders.
Tadpole with SPI
This tadpole shows signs of a severe Perkinsea infection.
This tadpole shows signs of a severe Perkinsea infection.
Tadpole with organ failure
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.