wunder beta🦌 Mammals of the Southwest Mountains and Mesas
George Olin’s 1961 Southwest Parks booklet climbs from mesas through life zones to alpine rock. Learn how plants predict mammals, why the Kaibab squirrel is an island story, and how folklore yields to field evidence.
What you’ll learn
- Above the desertExplain Olin’s vertical Southwest and how life zones plus plants predict mammal habitat.Mesa edge. 1961 geology with softened shrinkage. Four upland zones. Food or cover.
- Mountain islandsUse Kaibab isolation, bighorn cliffs, and the pika’s call to show relief as a barrier.Islands above desert. Twenty miles vs one mile down. Alpine bighorn. Talus pika.
- Schedules, not just bodiesShow behavioral calendars in marmots and voles, and why small mammals and bats matter.June–July estivation. Vole litters by zone. Nevada density spike. Unseen bats.
- Test the storySeparate mountain-lion folklore from evidence, state the deer relationship, and close on habitat conservation.Half fact, half fiction. Goes with the deer. Coyote menu. Wild places.
Questions this course answers
What is Olin’s main organizing idea for this booklet?
He concentrates on Transition through Arctic-Alpine zones and ties plant communities to mammal presence via food or cover.
Why is the Kaibab squirrel Olin’s best example of mountain-island isolation?
Olin measures roughly twenty horizontal miles against a mile of descent through desert zones, a river crossing, and the climb back up.
What does Olin say lower-elevation yellow-bellied marmots do between rainy seasons?
He treats summer sleep as a drought defense at lower elevations; higher marmots with continuous green food stay active.
What is Olin’s point about mountain-lion folklore?
He accepts rare verified attacks but rejects sensational folklore as a picture of normal behavior.
What does Olin mean when he says the mountain lion “goes with the deer”?
He frames the relationship as ecological regulation of deer pressure and breeding stock, not conscious herd management.
What conservation lesson does the booklet emphasize?
Olin pairs “wild creatures” with “wild places” and warns that upland buffers are not permanent if corridors and pressures change.
Based on a real book
This course is built from Mammals of the Southwest Mountains and Mesas by George Olin — the complete public-domain text, free to read and listen to on Wunder. The book itself is never rewritten or AI-edited; this course teaches its ideas.
Grounded in trusted sources
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