Before joining the Kronforst lab in 2013, I obtained a BSc. in Biology and a MSc. in Biological Sciences from Universidad de los Andes in my native Colombia. There I worked under the mentorship of Dr. Adolfo Amézquita, investigating the evolution of aposematism in the extremely toxic and beautiful Phyllobates poison frogs. My research focused on the evolutionary dynamics of coloration, toxicity, and resistance to autotoxicity in this genus, which exhibits remarkable variation in the first two traits. Additionally, I have worked on the biogeography phylogenetics, and species delimitation of Phyllobates, and the incredibly diverse Andinobates, and Oophaga poison frogs. Apart from my frog work, I am currently collaborating with members of Dr. Daniel Cadena's lab, also at los Andes, on a project that seeks to understand the evolution of partial migration in Tyrant flycatchers.
In general, my research at the Kronforst lab seeks to understand the source of beneficial genetic variation by studying the evolution of aposematism in several groups of poison frogs. Currently, I'm working on a project seeking to understand the genetic variation underlying coloration in a small group of Phyllobates poison frogs, which exhibit interesting variation in color and pattern, both between and within populations of closely related species.
Márquez, R. Amézquita A. In preparation. Evolution of the muscular voltage-gated sodium channel of Phyllobates dart-poison frogs in relation to toxicity: Adaptation or standing variation?
Amézquita, A., Márquez, R., Escovar, T., Medina, I., Mejía-Vargas, D., Vargas-Salinas, F., Esquivel, C. In preparation. A previously overlooked species of Phyllobates (Anura: Dendrobatidae) from the Pacific coast of Colombia.
Rueda-Almonacid, J.V., Salazar, E.N., Gil-Acero, J., Dorado, A. Márquez, R., Chaves-Portilla, G., Amézquita, A. In review. A New species of Andean poison frog (Andinobates, Dendrobatidae) from Colombia. Zootaxa.
Amézquita, A., Márquez, R., Medina, R., Mejía-Vargas, D., Kahn, T.R., Suárez, G., Mazariegos, L. 2013. A new species of Andean poison frog, Andinobates (Anura: Dendrobatidae), from the northwestern Andes of Colombia. Zootaxa 3620 (1): 163–178.
Acevedo, A.A. Wake, D.B., Márquez, R., Silva, K., Franco, R., Amézquita, A. 2013. Two new species of Salamander, genus Bolitoglossa (Amphibia: Plethodontidae), from eastern Colombia. Zootaxa 3609 (1): 069–084.
Márquez, R., Corredor, G., Galvis, C., Góez, D., Amézquita, A. 2012. Range extension of the critically endangered true poison-dart frog, Phyllobates terribilis (Anura: Dendrobatidae), in western Colombia. Acta Herpetologica 7(2): 341-345.