High-altitude South American grasshoppers: defining biological units when genes, chromosomes and morphology tell different stories.

CONFALONIERI V.A.; GUZMAN N. V.; MINUTOLO, C.; POCCO, M.; CIGLIANO M. M.

Congreso; 11th International Congress of Orthopterology; 2013

The diversification of high-altitude grasshoppers in South America is a complex process, most probably related to tectonic and orogenic activities, and also to climatic factors. Many new biological units emerged during the late Pliocene and Pleistocene in the Andes Mountain range, and, in some cases, divergence may have occurred too recently to be detected by taxonomic or traditional molecular phylogenetic methods.