Phylogenetic trends in neotropical aquatic plants assemblies

• Autores: Machado-Filho, Hermes, Lot-Helgueras, Antonio, Zickel, Carmen Sílvia
• Formato: artículo
• Fecha de Publicación: 2023
• Institución: Universidad Nacional Federico Villarreal
• Repositorio: Revistas - Universidad Nacional Federico Villarreal
• Lenguaje: español
• OAI Identifier: oai:ojs2.revistas.unfv.edu.pe:article/1514
• Enlace del recurso: https://revistas.unfv.edu.pe/rtb/article/view/1514
• Nivel de acceso: acceso abierto
• Materia: Hydrophytes; Biogeography; Dispersal

The phylogenetic assembly rule has received particular attention in its application in biological assemblies, and the present study aims to apply the use of this concept in studies of Neotropical plants associated with aquatic environments. Thus, species information was compiled from the scientific database Scopus, including information for 2813 aquatic and border spermatophytes and their types of dispersal syndromes from 76 assemblages distributed across the Neotropical. We constructed phylogenetic trees for the Neotropical region and for each province separately to define the structure of the ancestral relationships of the species in those assemblies by calculating the phylogenetic metrics of the singularities of each component of diversity and conducting multiple regressions of each phylogenetic diversity metric against environmental variables that represent the hypothesis of determinant contemporary processes. The phylogenetic structure was maintained within the context of species observed in the biogeographical provinces. The multiple regressions indicated no relationship between environmental variables and the predictor’s richness and phylogenetic diversity. It was found that most of these species disperse by anemochory and endozoochory, which can be important historical indicators for explaining the phylogenetic pattern displayed. More phylogenetic structure occurred in arid regions as opposed to the most phylogenetically aggregated species occurring in humid tropical zones. It was concluded that the Neotropical floras were dominated by non-random assembly rules, with a tendency to be composed of the same clades, independent of geographic distances; however, they demonstrated a tendency to form assemblies themselves into more congeneric or co-familiar forms rather than random associations. This phenomenon may be related to the types of dispersal syndromes of ancestral lineages. The Neotropical aquatic and border Spermatophyte were dominated by non-random assembly rules, with a tendency to be composed of the same clades, independent of geographic distances. This phenomenon may be related to the types of dispersal of ancestral lineages.