Dr. Diana Six is a Professor of Forest Entomology/Pathology at the University of Montana, and Chair of the Department of Ecosystems & Conservation Sciences.

Diana conducts research on various aspects of bark beetle ecology and management, including investigations into how bark beetles may affect the ability of forests to adapt to climate change. This includes work on mountain pine beetle outbreaks in lodgepole and ponderosa pine, and the massive die-offs of whitebark pine in North America and the giant Euphorbia tree in southern Africa.


She is involved in collaborative efforts with scientists in the U.S., South Africa, Sweden and Mexico.

Diana is an associate editor for the journals Insects, Journal of Economic Entomology, and Agricultural and Forest Entomology. She has a Ph.D. in Entomology from University of California, Riverside.

Diana is an avid fly fisher and fly tier, who spends as much time as she can in the outdoors hiking, backpacking, and cross country skiing.


Piikani Nation Treaty



Find out everything you ever wanted to know about the biology and ecology of grizzly bears. Authored by world-renowned bear biologist Dr. David Mattson, this site summarizes and synthesizes in beautiful graphic form the science of grizzly bears.


Find out how much Native Americans care about the grizzly bear, with a Grizzly Treaty that has been signed by more than 270 tribes, as well as numerous traditional societies and leaders. The document has become a symbol of international unity in defense of sovereignty, spiritual and religious protection, and treaty rights. 


For an in depth and comprehensive look at the ecology and demography of grizzly bears in the northern US Rocky Mountains, along with all the research relevant to conservation of these bears, see Mostly Natural History of the Northern Rocky Mountains.


GOAL is a coalition of nearly 50 tribes  (and counting) who object to the federal and state plans to delist grizzly bears prematurely and allow trophy

hunting of this sacred being.

GOAL advocates for the tribes'

legal right to meaningful consultation and also for the reconection of tribal peoples to their traditional homelands

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