Wednesday, February 19, 2014
Saturday, December 08, 2012
Nocomis leptocephalus (top) and Nocomis platyrhynchus (bottom)
Thursday, December 22, 2011
Tuesday, October 11, 2011
My research deals with ecological diversification among Neotropical cichlids (Teleostei: Cichlidae: Cichlinae), with particular emphasis on Crenicichla (Cichlidae) in subtropical South America. I am interested in the evolution of body shape and lower pharyngeal jaw shape among major lineages, particularly, shifts in rates of evolution and convergence. To address these interests, I using next generation sequencing, geometric morphometrics, stable isotope ratios and organismal stoichiometry.
Crenicichla tendybaguassu Lucena and Kullander 1992
Secondly, I am interested in the comparative functional ecology of four freshwater crustacean lineages in subtropical South America: Paractacidae ("crayfish"), Trichodactylidae ("crabs"), Palaemonidae ("shrimps"), and Aeglidae. I am particularly interested in how the apparent intermediate morphology of Aeglidae (between crayfishes/shrimps and crabs) manifests itself from a functional perspective.
Aegla uruguayana (Aeglidae)
Lastly, I am interested in the functional roles and trophic relationships among sympatric minnows in the Southeastern US (Cyprinidae). Particularly, morphological-ecological associations and linkages between species identity and ecosystem function.