September Salt Spring Island Fungus of the Month: Strobilurus trullisatus

Douglas fir trees follow a 5-7 year cycle that affects how many cones are produced. One year each cycle,  the "mast year", all the trees make an extra-large crop of seed cones, sometimes thousands on a large tree. Other years have smaller crops, or sometimes almost no cones at all. 2019 was a very sparse year for Douglas firs across the island, but this year there are a LOT more cones. 

We aren't entirely sure why some tree species follow an irregular mast cycle. It might help keep the population of seed eating animals low, or the trees may be responding to weather cues. Whatever the reason, there will be an extra-thick layer of fallen cones on the forest floor this year. 

observation by corvi

As ...more ↓

Posted on November 28, 2020 05:07 by corvi corvi | 0 comments | Leave a comment
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What is the red-purple mushroom pictured in the community's banners and icons?

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Mini corvi created this project on January 28, 2019
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