Content by Jeff Martin

Decoding Bison Dietary Selection: More Than Just Grass

While bison are often thought of as quintessential grazers, their diet is surprisingly variable. However, they also snack on non-grass species throughout the year.

Three people smile for the camera with bison and rolling hills in the background

Bringing happy, healthy bison back to the Great Plains

January 17, 2025

There are approximately 400,000 bison across North America, down from 30 to 60 million prior to the 1860s. South Dakota has the largest bison population in the U.S. with nearly 40,000, and Martin hopes to see it keep rising.

Bison herd grazing on a vast, rolling grassland.

Decoding Bison

The Decoding Bison program is designed to equip bison managers from the private, tribal, nonprofit government organization and public sectors with the knowledge and skills necessary for effective bison management.

Climate Toolbox How-To: Preparing Your Ranch for Future Climate Scenarios

This article explores practical insights and tools offered in the Climate Toolbox that equip bison ranchers to make informed decisions in ranch planning, grassland management, and parasite control.

Three brown yearlings eating from a feeding trough.

Animal Science Research and Extension Report

Research report from Animal Science Department covering a variety of areas in livestock production.

SDSU Extension welcomes new bison specialist

April 19, 2023

SDSU Extension is excited to announce a new bison specialist. Jeff Martin has been named the SDSU Extension Bison Specialist and the Assistant Professor of Bison Biology and Management in the Department of Agriculture and Natural Resources. Martin’s role is 70 percent research and 30 percent Extension, and he will continue to be based at West River Research and Extension center in Rapid City, South Dakota.

Bison herd roaming a vast, rolling plain.

Show Me the Home Where the Buffalo Once Roamed

Have you ever wondered when and where bison were roaming during the colonial period in North America and before? Take an in-depth look at the historic extent of occurrence of bison to better understand their natural habitat.

Goldilocks and Bison Carcass Size Considerations

Many are familiar with the story of Goldilocks and the three bears, where Goldilocks tries to find a bed that's not too hard, nor too soft, but “just right.” Learn how this same concept can help producers find a carcass size that's "just right" for bison processing.

Are bison amenable or non-amenable? How does the definition of bison affect harvest systems and quality of meat and carcasses?

While status of bison as an amenable versus non-amenable species seems confusing and complex, there are associated benefits and consequences for each definition.

Closeup of a male bison's face, centered on its eye.

USDA FSA: Bison herds affected with Mycoplasma bovis now eligible for livestock assistance programs, carcass disposal assistance also available

The U.S. Department of Agriculture Farm Service Agency has announced that bison death losses resulting from Mycoplasma bovis are now eligible for the livestock indemnity program, retroactive for 2021.