Herbivores safeguard plant diversity by reducing variability in dominance

@article{Mortensen2018HerbivoresSP,
  title={Herbivores safeguard plant diversity by reducing variability in dominance},
  author={Brent Mortensen and Brent J. Danielson and William Stanley Harpole and Juan Alberti and Carlos Alberto Arnillas and Lori A. Biederman and Elizabeth T. Borer and Marc William Cadotte and John Matthew Dwyer and Nicole Hagenah and Yann Hautier and Pablo Luis Peri and Eric W. Seabloom},
  journal={Journal of Ecology},
  year={2018},
  volume={106},
  pages={101 - 112}
}
Reductions in community evenness can lead to local extinctions as dominant species exclude subordinate species; however, herbivores can prevent competitive exclusion by consuming otherwise dominant plant species, thus increasing evenness. While these predictions logically result from chronic, gradual reductions in evenness, rapid, temporary pulses of dominance may also reduce species richness. Short pulses of dominance can occur as biotic or abiotic conditions temporarily favour one or a few… 

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