Ice Ages in the Desert: Is it Time for the Next Saguaro Migration?
1992. v12. (2). Van Devender TR (ed). Ice Ages in the Desert: Is it Time for the Next Saguaro Migration?
Distributions of Sonoran Desert cacti are highly controlled by climate, and their ranges shift dramatically in response to climatic fluctuations on scales from hours to millennia. Studies of packrat middens have provided insights as to cactus distributions and physiological limits over long periods of time.
- Type
- Newsletter Issue
- Authors
- Van Devender, Thomas
- Date of Issue
- 1992
- Units
- SAGU
- Keywords
- cactus distributions, Carnegia gigantea, Forrest Shreve, freeze, glaciers, packrat middens, Sonoran Desert
- Subjects
- Ecological Framework: Air and Climate | Weather and Climate | Weather and Climate , Ecological Framework: Biological Integrity | Focal Species or Communities | Desert Communities , NPS.gov Subject Site: Deserts