ekrimmel
commented
6 years ago John, speaking: If you take a tissue sample out of a whole organism and then the tissue sample takes on a life of it’s own this could be captured in DwC with the resource relationship extension. You can create subject-predicate-object, which is pretty wide open. Trick is to create a meaningful way to use these predicates, e.g. predicate “derived from.” This predicate could also be much more specific, e.g. “DNA extract derived from.”
possibly could be elaborated on in a webinar related to #79
discussion from DwC Hour 4: Evolution of Darwin Core Terms and Extensions...
Kevin Love - iDigBio: I have a question for Andy. When does a collections object of many preparations become many collection objects? For example, would an individual selected from a collection lot that is selected to be cleared and stained and the remaining individuals are preserved in ethanol... is this two collection objects? one collection object with two preparations?
Randy Singer (iDigBio-FLMNH): @Kevin/Andy Also wondering this
Teresa Mayfield (UTEP Biodiversity Collections): @Kevin We treat this as an object with two preparations.
Patricia Mergen (Botanic Garden Meise/ Africamuseum): @Kevin in ABCD we have a concept related or associated unit where you can handle to link one specimen from a lot uniquely to it. You can chose to have this within the lot record or interlink two or more records.
Kevin Love - iDigBio: @Teresa... when might you treat them as two distinct objects?
Gary: How would this (proposed) extension clear up this confusion.
Andy, speaking: This is handled differently in different collections. If you are keeping the same catalog number then it remains one collection object, if an additional preparation is created and catalogued anew then this is a second collection object. This is a procedural difference between institutions. Doesn’t really make much difference one way or the other. The preparations extension would be able to accommodate a 1:1 relationship just as easily as 1:many.
Patricia Mergen (Botanic Garden Meise/ Africamuseum): Yes the tissue and DNA strains can be linked to the voucher.
Randy Singer (iDigBio-FLMNH): Separate databases for data associated with the same specimen makes informatics work really hard.
Brad Millen - Royal Ontario Museum, Toronto, Canada: The DWC2 field disposition come into play here for tissues.
John, speaking: If you take a tissue sample out of a whole organism and then the tissue sample takes on a life of it’s own this could be captured in DwC with the resource relationship extension. You can create subject-predicate-object, which is pretty wide open. Trick is to create a meaningful way to use these predicates, e.g. predicate “derived from.” This predicate could also be much more specific, e.g. “DNA extract derived from.”