Read Works
Read Works: Secrets of Survival: The Ancient Utah Juniper by Mimi Jorling
[Free Registration/Login Required] This passage explains how the Utah Juniper has adapted to the harsh desert climate and maintain an average lifespan of 400-750 years. It is followed by a comprehension question set.
Smithsonian Institution
National Museum of Natural History: American Mammals: Stephen's Woodrat
Juniper trees are the main source of food, water, and shelter for Stephen's Woodrat. Like Red Tree Voles, which feed mostly on Douglas-fir, the Woodrats are able to feed primarily on conifer leaves, which contain chemical compounds -...
Smithsonian Institution
National Museum of Natural History: American Mammals: Western Red Backed Vole
The Western Red-backed Vole lives in conifer forests from the Columbia River south through western Oregon to northern California. Its population densities are greatest in dense, dark forests where there is little or no understory. Learn...
Oregon State University
Oregon State University: Dichotomous Key
An excellent starting point. Get a good description of what the dichotomous key for tree identification is and then directions for using it to identify trees.
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