The powerpoint files from the 2012 LTER Mini-symposium presentations are available in the intranet document library here: http://intranet2.lternet.edu/documents/154
Each file is linked to its individual presentation.
All presentations are available here: http://mtsmediasite.unm.edu/unm/Catalog/pages/catalog.aspx?catalogId=fb88f187-5645-44fb-ba1c-5452a1d7b6c9
You will need Microsoft Silverlight installed to view these presentations.