What is it about?
In the Mojave Desert, we found mosses living under crystalline quartz rocks where they are protected from intense solar radiation and where moisture persists for a longer period of time than on the bare soil surface. In this study, we set out to compare this unique moss habitat the moss habitat on the bare soil surface. Using microclimate loggers, we found that light transmission through the rocks is very low (as little as 1.2% of sunlight), and that quartz provides protection from extreme heat, extreme cold, from drying out.
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Why is it important?
This study teaches us the importance of considering the scale of organisms we are studying. Mosses are very small plants and, thus, very small (to us) features---such as a rock---can make a big difference in the climate the moss experiences. This lesson is particularly important in extreme environments, where mosses may only be able to survive with microclimate protection.
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This page is a summary of: Life under quartz: Hypolithic mosses in the Mojave Desert, PLoS ONE, July 2020, PLOS,
DOI: 10.1371/journal.pone.0235928.
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