Juan Manuel Guayasamin

Juan Manuel Guayasamin (born 1974) is an Ecuadorian biologist.

Career Guayasamin earned his Ph.D. in 2007 from the University of Kansas, Department of Ecology and Evolutionary Biology. Since 2017 he has been working as a professor at the Universidad San Francisco de Quito in Ecuador. His research interests include the evolution of glass frogs (family Centrolenidae) and direct-developing anurans. His main contributions have been: phylogenetic taxonomy of glassfrogs, description of the variation of skin texture in frogs, description of numerous species of amphibians and reptiles, and a monographic review of all Ecuadorian glassfrogs (60 species). A team led by Guayasamin discovered Hyalinobatrachium yaku in May 2017, a glassfrog with a transparent venter. As of 2020, he had described six genera of amphibians, 55 species of amphibians, and 11 species of reptiles, including two geckos from the Galápagos Islands.

Genera described Celsiella Chimerella Espadarana Ikakogi Rulyrana Sachatamia Vitreorana

Selected publications Guayasamin JM, Castroviejo-Fisher S, Ayarzagüena J, Trueb L, Vilà C (2008). "Phylogenetic relationships of glassfrogs (Centrolenidae) based on mitochondrial and nuclear genes". Molecular Phylogenetics and Evolution 48 (2): 574–595. Guayasamin JM, Castroviejo-Fisher S, Trueb L, Ayarzagüena J, Rada M, Vilà C (2009). "Phylogenetic systematics of Glassfrogs (Amphibia: Centrolenidae) and their sister taxon Allophryne ruthveni ". Zootaxa 2100: 1–97. Vences M, Guayasamin JM, Miralles A, De la Riva I (2013). "To name or not to name: Criteria to promote economy of change in Linnaean classification schemes". Zootaxa 3636 (2): 201–244. Guayasamin JM, Krynak T, Krynak K, Culebras J, Hutter CR (2015). "Phenotypic plasticity raises questions for taxonomically important traits: a remarkable new Andean rainfrog (Pristimantis) with the ability to change skin texture". Zoological Journal of the Linnean Society 173: 913–928. Arteaga A, Bustamante L, Vieira J, Tapia W, Guayasamin JM (2019). Reptiles of the Galápagos: Life on the Enchanted Islands. Quito: Tropical Herping. 208 pp. Guayasamin JM, Cisneros-Heredia DF, McDiarmid RW, Peña P, Hutter CR (2020). "Glassfrog of Ecuador: diversity, evolution, and conservation". Diversity 12 (222): 1–285. (doi:10.3390/d12060222).