Why do sequoias often contain such large hollows? Does it mean they’re dying?



  1. 0 Votes

    Not necessarily. Tree hollows form as a result of natural forces exerting stress on the tree and causing the wood to cave in. Wind, rain, fire, lightening, and burrowing creatures all contribute to the excavation of hollows. The hollows in sequoia trees are large because sequoias often are very old. Hollows expand over time, so the older a tree is, the larger its hollows.

    Although hollows occur most frequently in old and dying trees, hollows themselves are not fatal to trees, provided that they do not completely prevent the xylem (tree-vessels) from circulating water and nutrients. Indeed, hollows are often beneficial to ecosystems since they provide much needed shelter to nestlings.

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