NutNet data update 15 Aug 2011 Data management update

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Presentation transcript:

NutNet data update 15 Aug 2011 Data management update Taxonomic resolution update

Normalized data From Wikipedia: “Codd's twelve rules” are a set of thirteen rules (numbered 0-12) proposed by Edgar F. Codd, a pioneer of the relational model for databases… Edgar Frank "Ted" Codd IBM Scientist Inventor of the Relational Model * data are stored, inserted, changed, and deleted in ONLY ONE PLACE. * New data adds rows, not columns.

Site Site_Name 1 XYZ 2 PDQ 1 2 Borer, Seabloom et al. 2009 Bulletin of the Ecological Society of America 90:205–214

Places & people Observed plant taxa Units of Observation Observed Data NutNet relational database Supported by U of M MSI

Taxon observations Connect to site Taxonomy presents a common challenge to large ecological datasets Species are the terminal identity in a nested hirearchy, easily captured by relational db models Lookup and intersection tables can connect single taxon identity to multiple local names A lot of work has been done trying to reconcile the taxonomy

~1860 plant names ~1739 unique taxon identifiers

The next target: Further resolving NutNet phylogeny

NutNet Results are based on your data – QC is critical * Note any data issues as you work * Changes to data should be made in one place. Any changes, updates or deletions necessary to the raw NutNet data should be given in writing (preferably by email) to Eric Lind elind@umn.edu. * Examine species list in your folder; add or correct for completeness