Yellowstone National Park

Gray Wolf (Canis lupus)
Northwestern Gray Wolf (Canis lupus occidentalis)
Northern Rocky Mountain Wolf (Canis lupus irremotus)

Population Statistics

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News Resources and Publications


Journal Articles

[PDF] Trends in vital signs for Greater Yellowstone: application of a Wildland Health Index; AJ Hansen, L Phillips – Ecosphere, 2018

Spatial Patterns of Winter Roadside Gray Wolf Sightability in Yellowstone National Park
J SunderRaj – 2018

[HTML] Winter feeding of elk in the Greater Yellowstone Ecosystem and its effects on disease dynamics
GG Cotterill, PC Cross, EK Cole, RK Fuda… – Phil. Trans. R. Soc. B, 2018

[PDF] Characteristics of winter wolf kill sites in the southern Yellowstone ecosystem in the presence of elk feedgrounds; SP Woodruff, M Jimenez, TR Johnson – Journal of Fish and Wildlife Management, 2018