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The Secret Sierra
David Gilligan
其他書名
The Alpine World Above the Trees
出版Spotted Dog Press, 2000
主題Nature / GeneralTravel / United States / West / Pacific (AK, CA, HI, OR, WA)
ISBN18933430149781893343016
URLhttp://books.google.com.hk/books?id=S7MfAQAAIAAJ&hl=&source=gbs_api
註釋What is like to live in a place of bare rock, vertical walls, and windswept ledges, where snow covers the ground for much of the year and temperature changes of thirty degrees or more is the daily norm? The Alpine Sierra Nevada, the rugged mountain world above treeline, presents this challenge to all living things venturing into its extreme environment. From the tiny meadow vole to the delicate alpine flower growing between slabs of broken rockfall, all that live within this diverse, thin-aired landscape have developed specialized adaptations just to survive.