David J Mattson, Ph.D. Short Biography

The document consists of a short biography of Dr. David J. Mattson, detailing his academic background and extensive research on large carnivores, particularly grizzly bears and mountain lions. It includes a comprehensive list of his publications and research projects focused on behavioral ecology, habitat suitability, and the intersection of science and conservation policy. Additionally, the document contains three figures analyzing Yellowstone grizzly bear population data, indicating a lack of population increase and a rise in mortalities and human-wildlife conflicts following the loss of whitebark pine.

• Dr. David Mattson has spent 30 years studying large carnivores, focusing on the integration of ecological data from pumas and grizzly bears into risk management, habitat, and demographic models.
• Dr. Mattson's research interests encompass behavioral ecology, spatial models of habitat suitability, human-large carnivore relations, and the dynamics between science and conservation policy.
• Analysis of the median estimate of females with cubs-of-the-year in the Yellowstone grizzly bear population shows no increase in population size, with data from 2007-2013 suggesting a declining rather than stable population.
• Mortalities for both male and female Yellowstone grizzly bears increased substantially in recent years, coinciding with a period after the maximum loss of whitebark pine and without a corresponding increase in population size.
• Conflicts and mortalities associated with human-provided meat and livestock increased dramatically following the period of significant whitebark pine loss in the ecosystem.

APA

Earthjustice (n.d.). David J Mattson, Ph.D. Short Biography. https://earthjustice.org/wp-content/uploads/mattson20declaration.pdf

Chicago

Earthjustice. David J Mattson, Ph.D. Short Biography. n.d. https://earthjustice.org/wp-content/uploads/mattson20declaration.pdf.

Wikipedia

{{cite press release |author=Earthjustice |title=David J Mattson, Ph.D. Short Biography |url=https://earthjustice.org/wp-content/uploads/mattson20declaration.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@misc{earthjusticenddavid, author = {{Earthjustice}}, title = {{David J Mattson, Ph.D. Short Biography}}, publisher = {Earthjustice}, url = {https://earthjustice.org/wp-content/uploads/mattson20declaration.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }