evol_distinct function

Species' evolutionary distinctiveness

Calculates evolutionary distinctiveness measures for a suite of species by: a) equal splits (Redding and Mooers 2006) b) fair proportions (Isaac et al., 2007). This a new implementation of the picante function evol.distinct

however allowing multifurcations and can be orders of magnitude faster.

evol_distinct(
  tree,
  type = c("equal.splits", "fair.proportion"),
  scale = FALSE,
  use.branch.lengths = TRUE,
  ...
)

Arguments

• tree: an object of class phylo.
• type: a) equal splits (Redding and Mooers 2006) or b) fair proportions (Isaac et al., 2007)
• scale: The scale option refers to whether or not the phylogeny should be scaled to a depth of 1 or, in the case of an ultrametric tree, scaled such that branch lengths are relative.
• use.branch.lengths: If use.branch.lengths=FALSE, then all branch lengths are changed to 1.
• ...: Further arguments passed to or from other methods.

Returns

a named vector with species scores.

Examples

tree <- ape::rcoal(10)
evol_distinct(tree)
evol_distinct(tree, type = "fair.proportion")

References

Redding, D.W. and Mooers, A.O. (2006). Incorporating evolutionary measures into conservation prioritisation. Conservation Biology, 20 , 1670--1678.

Isaac, N.J.B., Turvey, S.T., Collen, B., Waterman, C. and Baillie, J.E.M. (2007). Mammals on the EDGE: conservation priorities based on threat and phylogeny. PLoS ONE, 2 , e296.

See Also

evol.distinct, phyloregion

Author(s)

Klaus Schliep