THE DISTRIBUTION AND RESILIENCE OF AMERICAN PIKAS UNDER CHANGING CLIMATE CONDITIONS IN THE CENTRAL OREGON CASCADES

Erika L Anderson; Oregon State University; Erika.Anderson@oregonstate.edu; Marie E. Martin, Kalysta Adkins, Johanna Varner, Sean M. Matthews, Sean M Matthews

The American pika (Ochotona princeps) is a climate-sensitive mammal distributed throughout montane ecosystems of western North America. Rising temperatures, decreased precipitation, and unreliable snowpack imperil some populations of pikas by inducing heat stress, reducing forage, and increasing vulnerability to winter conditions. Given their sensitivity to shifting climate conditions, the Oregon Department of Fish and Wildlife lists the American pika as a Conservation Strategy Species, however, little is known about the status and distribution of pikas throughout the state, particularly in central Oregon, where there are steep environmental gradients and a diversity of lava habitats. With the help of community volunteers, we conducted observational surveys at 80 survey locations in the central Oregon Cascades. Survey locations were distributed across an elevational gradient from 3,000 ft to 10,000 ft. By integrating presence only data with detection-non-detection data from community led observational surveys, we will estimate the distribution of pikas as it relates to climate, elevation, talus, and forest conditions. Our work will uncover the potential resilience of pikas in the central Oregon Cascades in the face of a changing climate and elucidate how survey protocols affect pika detectability across habitats, thereby informing study design for participatory science efforts in this region.

Ecology and Conservation of Pikas 1 - Genetics & Distribution 
Wednesday 5:25 PM