Phylogenetic ANOVA of drivers of molt and dichromatism in feather
regions
Identifying those feather regions being replaced by the prealternate
molt can provide clues as to why this molt evovles To investigate how
migratory distance interact with molts and dichromatism within
individual feather regions, we conducted a phylogenetic-controlled
analysis of variance (ANOVA), for each feather region using the package
phytools (Revell 2012) in R. We investigated the influence of migratory
distance on prealternate molt within feather regions by comparing these
continuous characters to presence and absence of prealternate molt (Fig.
2g). We then conducted Holm’s sequential Bonferroni post-hoc tests on
the phylogenetic ANOVA results to correct for simultaneous test runs.