Professor April Randle

April M. Randle

Assistant Professor

Full-Time Faculty


April M. Randle’s research is broadly focused on how ecological factors shape the behavioral and morphological traits of species and influence species' distributions and interactions. She has conducted research on a range of taxa including: tropical trees (forest restoration), primates (foraging behavior), temperate flora (plant ecology, mating system evolution, plant-pollinator interactions), marine mammals (population size estimation of large cetaceans), tropical freshwater fish (adaptations to extreme environments), and amphibians (impacts of pesticides, toxicology). Her most recent work focuses on ecological factors that influence the evolution of plant mating systems, and how the mating system can drive species diversification and influence species distribution.  


  • Postdoctoral Research Associate/Research Scholar, Department of Biology, Colorado State University, Fort Collins, CO. Morphological and genetic consequence of shifts in mating system in Solanum, with Dr. Pat Bedinger (2011-2013).
  • Postdoctoral Research Associate, Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO. Contributions of mating system and plant architecture to floral morphology, with Dr. Pam Diggle (2009-2011).


  • B.S. The Evergreen State College, 1994
  • MSc. University of Florida, 2001
  • PhD. University of Pittsburgh, 2009

Prior Experience

  • Project Manager: Kibale Fish and Seed Project, Makerere Biological Field Station, Uganda. Wetland ecology, fish ecology, behavior & physiology; limnology; phenology; seed dispersal; forest restoration; and primate ecology

Awards & Distinctions

  • Environmental Protection Agency STAR Fellowship

  • American Women in Science Educational Foundation Citation of Merit

  • National Evolutionary Synthesis Center (NESCent) Working Group Award (National Science Foundation). Linking self-fertilization, dispersal and distribution traits of species: Is Baker’s law an exception to the rule? (PI’s: A. Randle, S. Kalisz, & P-O Cheptou)

  • National Science Foundation Doctoral Dissertation Improvement Grant

Selected Publications

  • Randle AM, Spigler RB, and Kalisz S. (2018). Preemptive selfing as a barrier to reduce costs of hybridization. Evolution 72 (8): 1587-1599.
  • Broz AK, Guerrero RF, Randle AM, Baek YS, Hahn M, Bedinger PA. (2017). Transcriptomic analysis links gene expression to unilateral pollen-pistil reproductive barriers. BMC Plant Biology 17(81): 1032-1034.
  • Grossenbacher, DL Brandvain Y, Auld JR, Burd M, Cheptou P-O, Conner JK, Grant AG, Hovick SM, Pannell JR, Pauw A, Petanidou T, Randle AM, Rubio de Casas R, Vamosi J, Winn A, Igic B, Busch JW, Kalisz S, and Goldberg EE. (2017). Self-compatibility is over-represented on islands. New Phytologist 217(1): 469-478.
  • Broz AK* Randle AM*, Sianta SA, Tovar- Méndez A, McClure B and Bedinger PA (2017). Mating system transitions in Solanum habrochaites impact interactions between populations and species. New Phytologist 213(1): 440-454. *denotes lead authors.
  • Pannell JR, Auld J, Brandvain Y, Burd M, Busch JW, Cheptou PO, Conner JK, Goldberg EE, Grant AG, Grossenbacher DL, Hovick S, Igic B, Kalisz S, Pauw A, Petanidou T, Randle AM, Rubio de Casas R, Vamosi J, Winn A (2015). The scope of Baker’s Law. New Phytologist 208(3): 656-667. [Tansley Review].
  • Kalisz S, Randle AM, Chaiffetz, D, Faigeles M, Butera A, Beight C (2012). The evolution of floral morphological and developmental traits that facilitate self-pollination: Genetic correlations across the genus Collinsia. Annals of Botany 109: 571-582.
  • Randle AM, Slyder J and Kalisz S (2009). Can differences in autonomous selfing ability explain differences in range size among sister-taxa pairs of Collinsia (Plantaginaceae)? An extension of Baker’s Law. New Phytologist 183: 618-629.
  • Hilderbrand RH, Watts AC, and Randle AM (2005). The myths of restoration ecology. Ecology and Society 10(1): 19.
  • Paul JR, Randle AM, Chapman LJ, and Chapman CA (2004). Arrested succession in logging gaps: Is tree seedling growth and survival limiting? African Journal of Ecology 42: 245-251.