Priority effects are affected by precipitation variability and are stronger in exotic than native grassland species

  title={Priority effects are affected by precipitation variability and are stronger in exotic than native grassland species},
  author={Kaitlin Marissa Goodale and Brian J. Wilsey},
  journal={Plant Ecology},
Exotic perennial grassland species often green up earlier than their native counterparts, allowing them to gain an advantage by dominating resources early (priority effects). Precipitation variability is expected to increase with climate change, and may alter the strength of priority effects. We hypothesized that exotics will have stronger priority effects than natives, precipitation variability will impact the strength of priority effects, and precipitation variability will impact the priority… 
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