DATA ANALYSIS
Seed mass, dispersal distance (mean and maximum) and maximum
plant height data were log10-transformed before analyses. We calculated
the geometric means when species had multiple mean distance
values, from either multiple studies, or several treatments within a
study. Species with more than one dispersal syndrome were weighted
in the analyses. For example, a species with mean dispersal distances
for two dispersal syndromes (ant and ballistic) received a 0.5 weighting
for the ant mean dispersal value and 0.5 weighting for the ballistic
value.