by jorg, last updated 4/19/11, sharing set to Public
The following files contain the R fitted model objects that have been developed to identify salmonid vertebrae to the species level using vertebral morphology, and a brief explanation about how to identify new specimen data. The models are from the paper:
Huber, H.R., Jorgensen, J.C., Butler, V.L., Baker, G., and Stevens, R. 2011. Can salmonids (Oncorhynchus spp.) be identified to species using vertebral morphometrics? Journal of Archaeological Science 38:136-146. doi:10.1016/j.jas.2010.08.020 [http://dx.doi.org/10.1016/j.jas.2010.08.020; a pdf of the pre-publication version is with the files below.]
Preliminary results from our validation study applying these models, derived from modern vertebrae, on ancient vertebrae has shown moderate to marginal performance. An initial attempt at adding additional morphological characteristics (width, and some derived characters from this) has shown some model performance improvement. Efforts to improve model performance are in progress.
We are actively researching in this area, inquire with me (jeff dot jorgensen at noaa dot gov) for details. If you check back periodically, you may notice occasional updates.