lma() takes either raw or processed leaf physiognomic data and returns
leaf mass per area (LMA) reconstructions of species-mean, site-mean, and site-
variance.
lma() calls calc_lma() multiple times with different sets of
parameters. See calc_lma() for more control over LMA reconstructions.
lma(specimen_data)A list of tables containing leaf mass per area reconstructions.
species_mean_lma contains the average LMA for each morphospecies-site pair. Values calculated using the regression from Royer et al. (2007).
royer_site_mean_lma contains the average LMA for each site. Values calculated using the regression from Royer et al. (2007)
lowe_site_lma contains the average LMA for each site. Values calculated using the regression from Lowe et al. (2024)
lowe_variance contains the variance in LMA for each site. Values calculated using the regression from Lowe et al. (2024)
A table that must include "Site", "Morphotype", and either "Petiole Metric", or "Blade Area", "Petiole Area", and "Petiole Width".
Royer, D. L., L. Sack, P. Wilf, C. H. Lusk, G. J. Jordan, Ulo Niinemets, I. J. Wright, et al. 2007. Fossil Leaf Economics Quantified: Calibration, Eocene Case Study, and Implications. Paleobiology 33: 574–589
Lowe, A. J., D. L. Royer, D. J. Wieczynski, M. J. Butrim, T. Reichgelt, L. Azevedo-Schmidt, D. J. Peppe, et al. 2024. Global patterns in community-scale leaf mass per area distributions of woody non-monocot angiosperms and their utility in the fossil record. In review.
results <- lma(McAbeeExample)
results
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