Data assembly
Across their natural and anthropogenically expanded host and
geographical ranges, we found reports of 10529 infected host specimens
and 477 different host-parasite interactions in 183 publications. The
resulting species network comprises 144 host and 143 parasite species
(including species not officially described yet, i.e. cheironyms). We
assembled environmental and morphometric data for 133 and DNA sequence
data for 117 host species (Appendix S1.1). Niche dendrograms resulting
from the clustering algorithms (Appendix S3) were congruent (CADM,
Kendall’s W = 0.66, χ² = 34944, p < 0.01). The BI host tree
topology showed no deviation from recent phylogenetic hypotheses likely
to affect downstream analyses (see discussion in Appendix S1.1).