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originality

Originality of a species


Description

computes originality values for species from an ultrametric phylogenetic tree.

Usage

originality(phyl, method = 5)

Arguments

phyl

an object of class phylog

method

a vector containing integers between 1 and 7.

Details

1 = Vane-Wright et al.'s (1991) node-counting index 2 = May's (1990) branch-counting index 3 = Nixon and Wheeler's (1991) unweighted index, based on the sum of units in binary values 4 = Nixon and Wheeler's (1991) weighted index 5 = QE-based index 6 = Isaac et al. (2007) ED index 7 = Redding et al. (2006) Equal-split index

Value

Returns a data frame with species in rows, and the selected indices of originality in columns. Indices are expressed as percentages.

Author(s)

Sandrine Pavoine pavoine@mnhn.fr

References

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, e–296.

Redding, D. and Mooers, A. (2006) Incorporating evolutionary measures into conservation prioritization. Conservation Biology, 20, 1670–1678.

Pavoine, S., Ollier, S. and Dufour, A.-B. (2005) Is the originality of a species measurable? Ecology Letters, 8, 579–586.

Vane-Wright, R.I., Humphries, C.J. and Williams, P.H. (1991). What to protect? Systematics and the agony of choice. Biological Conservation, 55, 235–254.

May, R.M. (1990). Taxonomy as destiny. Nature, 347, 129–130.

Nixon, K.C. and Wheeler, Q.D. (1992). Measures of phylogenetic diversity. In: Extinction and Phylogeny (eds. Novacek, M.J. and Wheeler, Q.D.), 216–234, Columbia University Press, New York.

Examples

data(carni70)
carni70.phy <- newick2phylog(carni70$tre)
ori.tab <- originality(carni70.phy, 1:7)
names(ori.tab)
dotchart.phylog(carni70.phy, ori.tab, scaling = FALSE, yjoining = 0, 
    ranging = FALSE, cleaves = 0, ceti = 0.5, csub = 0.7, cdot = 0.5)

ade4

Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

v1.7-16
GPL (>= 2)
Authors
Stéphane Dray <stephane.dray@univ-lyon1.fr>, Anne-Béatrice Dufour <anne-beatrice.dufour@univ-lyon1.fr>, and Jean Thioulouse <jean.thioulouse@univ-lyon1.fr>, with contributions from Thibaut Jombart, Sandrine Pavoine, Jean R. Lobry, Sébastien Ollier, Daniel Borcard, Pierre Legendre, Stéphanie Bougeard and Aurélie Siberchicot. Based on earlier work by Daniel Chessel.
Initial release

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