| electivity {electivity} | R Documentation |
Algorithms for electivity indices and measures of resource use versus availability.
Description
This package is essentially Lechowicz (1982) turned into an R package. It includes all algorithms that were described therein plus the example data that was provided for moth resource utilisation.
Details
Lechowicz, M.J., 1982. The sampling characteristics of electivity indices. Oecologia 52, 22–30. https://doi.org/10.1007/BF00349007
Users are encouraged to read the original paper before deciding which algorithm
is most useful for them. Lechowicz recommended Vanderploeg and Scavia's E* index
(implemented in this package as vs_electivity()) as "the single best, but not
perfect, electivity index" because "E* embodies a measure of the feeder's
perception of a food's value as a function of both its abundance and the
abundance of other food types present." In practice, he found that all indices
returned nearly identical rank orders of preferred hosts except for Strauss'
linear index (L).
Author
Desi Quintans (@eco_desi)
URL
https://github.com/DesiQuintans/electivity/