12 febrero 2020 • 12:00 hs. • Auditorio I, Campus III,  INECOL

Dr. Milton Díaz Toribio

Curador del Jardín Botánico Francisco Javier Clavijero

INECOL

 

Resumen

Ecosystems around the world are undergoing dramatic and often non-random changes in species composition due to anthropogenic disturbances, a process termed “community disassembly.” Species loss during community disassembly is often trait-mediated and thus predictable at least when information is available about how species with different functional traits are likely to respond to a perturbation. Many fire-maintained ecosystems that escape agricultural conversion suffer from altered fire regimes (i.e., changes in fire frequency, intensity, and season). Species losses due to fire suppression are particularly severe in these ecosystems. In this study, I described the community disassembly process in pine savannas after fire suppression. Specifically, I explored the effects of fire altered regimes on plant community dynamics. I also focused on the diversity of under-ground storage organ types produced by pine savanna species. Finally, I determined the origins of the vegetation that develops after hardwood removal as part of a restoration effort of a degraded savanna.