Persistence of pikas
Continued, page 5 of 5

Acknowledgements
Special thanks are due to Chuck Barat and Bernard Stoffel, Chiefs of Resource Management at Lava Beds National Monument, for their facilitation and sharing of pika locations. Natalene Cummings, Vicki Snitzler-Neeck, and Mike Munts, Resource Management Specialists, provided similar assistance at Craters of the Moon. Anna Knipps and Suzette Tay, SCA volunteers at Craters, assisted with sampling. Thanks are also due to the superintendents of Craters (Jim Morris) and Lava Beds (Craig Dorman) for approving scientific collecting permits. Joel Berger of the University of Nevada, Reno, provided helpful discussions on mammalian persistence. The Biological Resources Research Center (BRRC) at the University of Nevada, Reno, provided funding during idea development. Brian McMenamy (of BRRC) prepared the GIS-based figure 2. C. Ray, D. Grayson, and J. Donnelly-Nolan commented on earlier drafts.

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About the author

Erik A. Beever, Ph.D., is an Ecologist with the U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331. He can be reached at 541-758-7785 or by e-mail: erik_beever@usgs.gov.

This article originally appeared on the National Park Service science site (not available from outside their server): Park Science, volume 21(2), spring 2002
Published by the National Park Service, U.S. Department of the Interior