Mariano Ordano, 1 Fundación Miguel Lillo, 2 Instituto de Ecología Regional, Tucumán, Argentina. Doctor in Sciences (Ecology and Management of Natural Resources, Instituto de Ecología, Xalapa, Veracruz, México (2005). Biologist, Universidad Nacional de Córdoba (1993). Research Scientist at CONICET (National Council for Scientific and Technical Research from Argentina). Researcher on evolutionary ecology and biotic interactions.