Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Charles Yackulic is a research statistician with the Southwest Biological Science Center.
Dr. Yackulic's research primarily focuses on developing and fitting statistical models that integrate multiple data sources, link environmental drivers and management actions to population and ecosystem processes, and can be used to make near and long-term forecasting of system dynamics under different management alternatives. Areas of particular interest include species distribution dynamics, population dynamics, interspecific interactions, animal movement, food web dynamics and river metabolism.
A school of humpback chub swimming in Havasu Creek, Grand Canyon. Photo by David Herasimtschuk, Freshwaters Illustrated, paid for and used with permission by USGS Southwest Biological Science Center.
A school of humpback chub swimming in Havasu Creek, Grand Canyon. Photo by David Herasimtschuk, Freshwaters Illustrated, paid for and used with permission by USGS Southwest Biological Science Center.
A school of humpback chub swimming in Havasu Creek, Grand Canyon. Photo by David Herasimtschuk, Freshwaters Illustrated, paid for and used with permission by USGS Southwest Biological Science Center.
A school of humpback chub swimming in Havasu Creek, Grand Canyon. Photo by David Herasimtschuk, Freshwaters Illustrated, paid for and used with permission by USGS Southwest Biological Science Center.