Counting marmots…
The physiological effects of road dust on the wildflower rosettes Ipomopsis aggregata, scarlet gilia, are shown to non-significantly reduce their growth rate in two meadows near the Rocky Mountain Biological Laboratory. Growth rate was a proxy for the amount of photosynthesis that occurred in the rosettes during the summer. There were differences between the two site locations that suggest there are some unknown variables of microsite that were not explored. However, the overall trend does show that dusting treatments of rosettes reduced their growth over the course of the summer. Initial size of selected rosettes were bigger in Lower Maxfield Meadow than that of Upper Maxfield Meadow.
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