Recent Submissions

  • The cost of compensation 

    Simons, AM, and MO Johnston. 1999. "The cost of compensation." American Naturalist 153(6): 683-687.
    No abstract available.
  • Male and female pollination success in a deceptive orchid, a selection study 

    O'Connell, LM, and MO Johnston. 1998. "Male and female pollination success in a deceptive orchid, a selection study." Ecology 79(4): 1246-1260. Copyright by the Ecological Society of America.
    We carried out phenotypic selection analyses to assess the relative importance of several Horal traits, as well as microhabitat, in determining both male and female pollination success in a nonrewarding orchid (Cypripedium ...
  • Correlations among Fertility Components Can Maintain Mixed Mating in Plants 

    Johnston, Mark O., Emmanuelle Porcher, Pierre-Olivier Cheptou, Christopher G. Eckert, et al. 2009. "Correlations among Fertility Components Can Maintain Mixed Mating in Plants." American Naturalist 173(1): 1-11.
    Classical models studying the evolution of self-fertilization in plants conclude that only complete selfing and complete outcrossing are evolutionarily stable. In contrast with this prediction, 42% of seed-plant species ...
  • Pollen limitation of plant reproduction: Ecological and evolutionary causes and consequences 

    Ashman, TL, TM Knight, JA Steets, P. Amarasekare, et al. 2004. "Pollen limitation of plant reproduction: Ecological and evolutionary causes and consequences." Ecology 85(9): 2408-2421. Copyright by the Ecological Society of America.
    Determining whether seed production is pollen limited has been an area of intensive empirical study over the last two decades. Yet current evidence does not allow satisfactory assessment of the causes or consequences of ...