Distribution and Community Assembly of Trees Along an Andean Elevational Gradient

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dc.contributor.authorWorthy, Samantha J.
dc.contributor.authorJiménez Paz, Rosa A.
dc.contributor.authorPérez, Álvaro J.
dc.contributor.authorReynolds, Alex
dc.contributor.authorCruse-Sanders, Jennifer
dc.contributor.authorValencia, Renato
dc.contributor.authorBarone, John A.
dc.contributor.authorBurgess, Kevin S.
dc.date.accessioned2023-11-14T15:48:58Z
dc.date.available2023-11-14T15:48:58Z
dc.date.issued2019-09-05
dc.description.abstractHighlighting patterns of distribution and assembly of plants involves the use of community phylogenetic analyses and complementary traditional taxonomic metrics. However, these patterns are often unknown or in dispute, particularly along elevational gradients, with studies finding different patterns based on elevation. We investigated how patterns of tree diversity and structure change along an elevation gradient using taxonomic and phylogenetic diversity metrics. We sampled 595 individuals (36 families; 53 genera; 88 species) across 15 plots along an elevational gradient (2440–3330 m) in Ecuador. Seventy species were sequenced for the rbcL and matK gene regions to generate a phylogeny. Species richness, Shannon–Weaver diversity, Simpson’s Dominance, Simpson’s Evenness, phylogenetic diversity (PD), mean pairwise distance (MPD), and mean nearest taxon distance (MNTD) were evaluated for each plot. Values were correlated with elevation and standardized effect sizes (SES) of MPD and MNTD were generated, including and excluding tree fern species, for comparisons across elevation. Taxonomic and phylogenetic metrics found that species diversity decreases with elevation. We also found that overall the community has a non-random phylogenetic structure, dependent on the presence of tree ferns, with stronger phylogenetic clustering at high elevations. Combined, this evidence supports the ideas that tree ferns have converged with angiosperms to occupy the same habitat and that an increased filtering of clades has led to more closely related angiosperm species at higher elevations.
dc.description.urihttps://doi.org/10.3390/plants8090326
dc.identifierhttps://doi.org/10.13016/dspace/eota-ff0x
dc.identifier.citationWorthy, S.J.; Jiménez Paz, R.A.; Pérez, Á.J.; Reynolds, A.; Cruse-Sanders, J.; Valencia, R.; Barone, J.A.; Burgess, K.S. Distribution and Community Assembly of Trees Along an Andean Elevational Gradient. Plants 2019, 8, 326.
dc.identifier.urihttp://hdl.handle.net/1903/31392
dc.language.isoen_US
dc.publisherMDPI
dc.relation.isAvailableAtCollege of Computer, Mathematical & Physical Sciencesen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtBiologyen_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.subjectcommunity phylogenetics
dc.subjectEcuador
dc.subjectmontane forests
dc.subjecttaxonomic metrics
dc.subjecttree diversity
dc.titleDistribution and Community Assembly of Trees Along an Andean Elevational Gradient
dc.typeArticle
local.equitableAccessSubmissionNo

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