title: Phylogenetic relatedness and leaf functional traits, not introduced status, influence community assembly.
abstract: Considerable debate focuses on whether invasive species establish and become abundant by being functionally and phylogenetically distinct from native species, leading to a host of invasion-specific hypotheses of community assembly. Few studies, however, have quantitatively assessed whether similar patterns of phylogenetic and functional similarity explain local abundance of both native and introduced species, which would suggest similar assembly mechanisms regardless of origin. Using a chronosequence of invaded temperate forest stands, we tested whether the occurrence and abundance of both introduced and native species were predicted by phylogenetic relatedness, functional overlap, and key environmental characteristics including forest age. Environmental filtering against functionally and phylogenetically distinct species strongly dictated the occurrence and abundance of both introduced and native species, with slight modifications of these patterns according to forest age. Thus, once functional and evolutionary novelty were quantified, introduced status provided little information about species' presence or abundance, indicating largely similar sorting mechanisms for both native and introduced species.
authors.forename: Nathan P
authors.initials: NP
authors.lastname: Lemoine
authors.forename: Jessica
authors.initials: J
authors.lastname: Shue
authors.forename: Brittany
authors.initials: B
authors.lastname: Verrico
authors.forename: David
authors.initials: D
authors.lastname: Erickson
authors.forename: W John
authors.initials: WJ
authors.lastname: Kress
authors.forename: John D
authors.initials: JD
authors.lastname: Parker
mesh_terms: D001499:Bayes Theorem; D004784:Environmental Monitoring; D065928:Forests; D058865:Introduced Species; D010802:Phylogeny; D018515:Plant Leaves / Q000502:physiology*; D010944:Plants / Q000145:classification* / Q000235:genetics*; D011156:Population Density; D012639:Seeds; D013045:Species Specificity