The Yellowstone Wolf Project is one of the most detailed studies of a large carnivore in the world, spanning 30 years since wolves were first reintroduced to the park in 1995. Field research helps biologists gain data on a broad range of topics, including population dynamics, predator-prey interactions, social behavior, genetics, disease, multi ...

Dec 30, 2024 · Annual reports about wolves and their management in Yellowstone National Park.

Jan 15, 2025 · Kira Cassidy, research associate with the Yellowstone Wolf Project, provides context and insight as a wolf tests an elk along Soda Butte Creek. ... The Yellowstone wolf, previously classified as Canis lupus irremotus, was reclassified under Canis lupus nubilus, a subspecies that ranged across much of the western and central U.S. To the north ...

At the end of December 2023, there were 124 wolves in eleven packs (six breeding pairs) living primarily in Yellowstone National Park (YNP). Pack size ranged from two to 25, averaging 10.8 members. Throughout YNP, a minimum of 58 pups were produced, with at least one additional litter that was born but died before it could be observed.

Wolves flourished amidst Yellowstone's abundant prey and expansive, protected wilderness. Wolf reintroduction in Yellowstone was part of the much larger Northern Rocky Mountain wolf recovery effort. This included a simultaneous wolf reintroduction in central Idaho and ongoing protection for a naturally recovering population in northwest Montana.

At the end of December 2023, there were 124 wolves in eleven packs (six breeding pairs) living primarily in Yellowstone National Park (YNP). Pack size ranged from two to 25, averaging 10.8 members. Throughout YNP, a minimum of 58 pups were produced, with at least one additional litter that was born but died before it could be observed.

At the end of December 2020, there were at least 123 wolves in nine packs (seven breeding pairs1) living primarily in Yellowstone National Park (YNP). This census was the highest park count since 2008 (124 wolves) and marked a one-year increase of 31% after a decade of very little population change year to year.

Jun 22, 2023 · When the grey wolf was reintroduced into the Greater Yellowstone Ecosystem in 1995, there was only one beaver colony in the park, said Doug Smith, a wildlife biologist in charge of the Yellowstone Wolf Project.

Mar 10, 2020 · The Yellowstone Wolf Project is approaching a remarkable 25 years of research data, obtained from an annual winter behavior and monitoring study. That data, along with a long-term summer study that tracks wolf kills, and blood samples obtained from wolves, has afforded scientists new discoveries previously unattainable.

Dec 4, 2023 · By showcasing the consequences of the wolves' absence on biodiversity and ecosystem functioning, this research formed the foundational basis for advocating the reintroduction of wolves into Yellowstone National Park.