Climate change and anti-herbivory resistance communication in <i>Artemisia tridentata</i>
Abstract
It has been suggested that anthropogenic climate change may greatly influence plant communities, particularly at high elevations. We asked whether climate change and/or elevation gradient influence volatile intra-plant communication for purposes of anti- herbivory resistance and whether air contact is required for such communication in Artemisia tridentata. Plants at high and low elevation sites received one of three treatments: leaf clipping, leaf clipping and covering with plastic bag and no clipping with plastic bag. Distance from a focal stem to the nearest leaf damage and mean number of damaged leaves were measured before and after treatments. Previous leaf damage was shown to influence distribution of future herbivory damage, and free air flow influenced the distribution of subsequent herbivory damage. However, we did not find evidence for greater elevational influence on amount or distribution of herbivory damage.
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