Spatial patterns of congruence or mismatch between taxonomic, functional, and phylogenetic diversity and endemism of perennial flora along the aridity gradient of Chile

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dc.contributor.authorPoch, Paola
dc.contributor.authorPoulin, Elie
dc.contributor.authorPerez, Maria Fernanda
dc.contributor.authorPeralta, Gioconda
dc.contributor.authorHinojosa, Luis Felipe
dc.date.accessioned2025-01-20T16:08:39Z
dc.date.available2025-01-20T16:08:39Z
dc.date.issued2024
dc.description.abstractIntroduction: Understanding the relationships between taxonomic, functional, and phylogenetic diversity and endemism across environmental gradients is essential for elucidating the eco-evolutionary mechanisms that shape local plant communities. Methods: A database was compiled from field surveys, national herbarium records, and virtual records of perennial plant specimens collected in the aridity gradient of northern Chile, between 18 and 32 degrees S. A large-scale dated phylogeny of available perennial plants was used, and 11 functional traits were selected to construct a dendrogram using the Unweighted Pair-Group Method with Arithmetic Mean (UPGMA) method for the species present in our database. We calculated spatial patterns of a-diversity, including taxonomic (TD), functional (FD), and phylogenetic (PD) diversity, as well as weighted (WE), functional (FE), and phylogenetic (PE) endemism. We used multiscale geographically weighted regression (MGWR) to identify spatial congruencies and discrepancies among these dimensions and to test different eco-evolutionary processes. Results: The diversity indices TD, FD and PD showed similar geographic patterns (R2 > 0.93), with lower diversity observed in absolute desert regions. The pattern of weighted endemism (WE) showed a weak association with functional endemism (FE) and phylogenetic endemism (PE) (local R2 < 0.48). The regions with lower FD or PD than expected given the TD (i.e. FDWE and PE>WE), they are found in arid, high Andean and transitional zones, at different altitudes, which would indicate a greater presence of phylogenetic lineages and species with morpho-functional traits related to extreme environmental conditions and transitional biomes (arid-semiarid). Discussion: These spatial discrepancies suggest different eco-evolutionary drivers between the dimensions of diversity and endemism (taxonomic, functional, and phylogenetic). Areas of high diversity and high endemism do not necessarily coincide, and both should be addressed by conservation efforts.
dc.description.funderFondo Nacional de Desarrollo Cientfico y Tecnolgico10.13039/501100002850
dc.fuente.origenWOS
dc.identifier.doi10.3389/fpls.2024.1418673
dc.identifier.issn1664-462X
dc.identifier.urihttps://doi.org/10.3389/fpls.2024.1418673
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90095
dc.identifier.wosidWOS:001312638600001
dc.language.isoen
dc.revistaFrontiers in plant science
dc.rightsacceso restringido
dc.subjectenvironmental filter
dc.subjectecological opportunity
dc.subjectenvironmental heterogeneity
dc.subjectgeographic isolation
dc.subjecteco-evolutionary mechanisms
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleSpatial patterns of congruence or mismatch between taxonomic, functional, and phylogenetic diversity and endemism of perennial flora along the aridity gradient of Chile
dc.typeartículo
dc.volumen15
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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