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William leads research on wildlife population modeling, movement ecology, and space use with an emphasis on migratory waterbirds
A small group of Pacific walruses consider entering the water as they assess their surroundings. A calf can be seen in the back of the group. USGS and the U.S.
A small group of Pacific walruses consider entering the water as they assess their surroundings. A calf can be seen in the back of the group. USGS and the U.S.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
Pacific walrus group hauled-out on sea ice in the Chukchi Sea. The photo was captured during a survey of the age structure of the population to evaluate population status. Observers assign each animal in a group to an age/sex category according to published criteria. USFWS Permit No. 33776D.
Pacific walrus group hauled-out on sea ice in the Chukchi Sea. The photo was captured during a survey of the age structure of the population to evaluate population status. Observers assign each animal in a group to an age/sex category according to published criteria. USFWS Permit No. 33776D.
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Amanda Herbert (foreground) and Ami Everett onboard the R/V Norseman II. Amanda and Ami are on top of the wheelhouse of the ship to observe groups of Pacific walrus hauled-out on sea ice. Observers assign each animal in a group to an age/sex category according to published criteria.
Amanda Herbert (foreground) and Ami Everett onboard the R/V Norseman II. Amanda and Ami are on top of the wheelhouse of the ship to observe groups of Pacific walrus hauled-out on sea ice. Observers assign each animal in a group to an age/sex category according to published criteria.
From left: Joshua Carpenter (USGS volunteer), William Beatty (USGS research wildlife biologist), Caroline Cummings (USGS volunteer), Amanda Herbert (USGS biological science technician), and Ami Everett (USGS biological science technician) conducting Pacific walrus age structure surveys from the RV Norseman II. The team observed walruses hau
From left: Joshua Carpenter (USGS volunteer), William Beatty (USGS research wildlife biologist), Caroline Cummings (USGS volunteer), Amanda Herbert (USGS biological science technician), and Ami Everett (USGS biological science technician) conducting Pacific walrus age structure surveys from the RV Norseman II. The team observed walruses hau
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
A small group of Pacific walruses consider entering the water as they assess their surroundings. A calf can be seen in the back of the group. USGS and the U.S.
A small group of Pacific walruses consider entering the water as they assess their surroundings. A calf can be seen in the back of the group. USGS and the U.S.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
Pacific walrus group hauled-out on sea ice in the Chukchi Sea. The photo was captured during a survey of the age structure of the population to evaluate population status. Observers assign each animal in a group to an age/sex category according to published criteria. USFWS Permit No. 33776D.
Pacific walrus group hauled-out on sea ice in the Chukchi Sea. The photo was captured during a survey of the age structure of the population to evaluate population status. Observers assign each animal in a group to an age/sex category according to published criteria. USFWS Permit No. 33776D.
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Amanda Herbert (foreground) and Ami Everett onboard the R/V Norseman II. Amanda and Ami are on top of the wheelhouse of the ship to observe groups of Pacific walrus hauled-out on sea ice. Observers assign each animal in a group to an age/sex category according to published criteria.
Amanda Herbert (foreground) and Ami Everett onboard the R/V Norseman II. Amanda and Ami are on top of the wheelhouse of the ship to observe groups of Pacific walrus hauled-out on sea ice. Observers assign each animal in a group to an age/sex category according to published criteria.
From left: Joshua Carpenter (USGS volunteer), William Beatty (USGS research wildlife biologist), Caroline Cummings (USGS volunteer), Amanda Herbert (USGS biological science technician), and Ami Everett (USGS biological science technician) conducting Pacific walrus age structure surveys from the RV Norseman II. The team observed walruses hau
From left: Joshua Carpenter (USGS volunteer), William Beatty (USGS research wildlife biologist), Caroline Cummings (USGS volunteer), Amanda Herbert (USGS biological science technician), and Ami Everett (USGS biological science technician) conducting Pacific walrus age structure surveys from the RV Norseman II. The team observed walruses hau
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government