Ecological Archives E094-265-A1
Masahiro Aiba, Masatoshi Katabuchi, Hino Takafumi, Shin-ichiro S. Matsuzaki, Takehiro Sasaki, Tsutom Hiura. 2013. Robustness of trait distribution metrics for community assembly studies under the uncertainties of assembly processes. Ecology 94:2873–2885. http://dx.doi.org/10.1890/13-0269.1
Appendix A. Summary of the metrics examined in the study.
Table A1. Summary of the metrics examined in the study. :species richness,
: trait value,
: set of trait values
,
: nearest neighbor distance,
: set of nearest neighbor distances
,
: neighbor distance,
: set of length of a minimum spanning tree links,
: partial weighted evenness,
: sum of deviances of the S species for distances from the centroid of the multi-dimensional trait space, which is calculated without taking into account abundance,
: sum of absolute deviances of the S species for distances from the centroid
: mean distances of the S species to the centroid. See original papers for details of the definitions. Note that these formulas are only valid for presence/absence cases.