FLORES Gustavo Ernesto
congresos y reuniones científicas
Vicariance events shaping Southern South American insect distributions, a search using Hovenkamp (1997, 2001) protocols and VIP
DOMÍNGUEZ, M. C., F.A. AGRAIN, G.E. FLORES Y S. ROIG-JUÑENT
Simposio; IV International Tenebrionoidea Symposium; 2015
The main goal of this study is touse multiple insect phylogenies along with geographical information to testknown vicariance hypotheses for Southern South America (SSA). We analyzed the phylogenies and geographical distributions of seven insect genera endemic to SSA (including four Tenebrionidae) using Hovenkamp protocol, which have been in part implemented software (VIP). Usingthis software we were able to hypothesize55 traceable vicariance events (TVE), among these we recognized foursupported vicariance events (SVEs) (i.e.confirmed by more than a single sister group). The first SVE consisted of anEast/West separation of the faunas in all analyzed trees; the second SVE is aNorth/South separation of the fauna located East of the Andes; the third SVEwas found in the southernmost fauna located East of the Andes, which separatesallopatric Patagonian species in a North/South direction; and finally the fourth SVE separates in a North/South direction clades of the Central Chile and fauna located West of the Andes. Our results,suggest that these four SVEs could be correlated with the uplifting of the Andesmarine ingressions thatoccurred during the Cenozoic that is the estimated age at which these eventsoccurred. Finally, we discuss that current software implementation of Hovenkamp ideas need to beexpanded; particularly regarding the automated selection of TVEs.