Incongruent spatial distribution of taxonomic, phylogenetic, and functional diversity in neotropical cocosoid palms
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2021
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Resumo
Biodiversity can be quantified by taxonomic, phylogenetic, and functional diversity.
Current evidence points to a lack of congruence between the spatial distribution of
these facets due to evolutionary and ecological constraints. A lack of congruence is
especially evident between phylogenetic and taxonomic diversity since the name and
number of species are an artificial, yet commonly used, way to measure biodiversity.
Here we hypothesize that due to evolutionary constraints that link phylogenetic and
functional diversity, areas with higher phylogenetic and functional diversity will be
spatially congruent in Neotropical cocosoid palms, but neither will be congruent with
areas of high taxonomic diversity. Also, we hypothesize that any congruent pattern
differs between rainforests and seasonally dry forests, since these palms recently
colonized and diversified in seasonally dry ecosystems. We use ecological niche
modeling, a phylogenetic tree and a trait database to test the spatial congruence of
the three facets of biodiversity. Taxonomic and phylogenetic diversity were negatively
correlated. Phylogenetic and functional diversity were positively correlated, even though
their spatial congruence was lower than expected at random. Taken together, our results
suggest that studies focusing solely on large-scale patterns of taxonomic diversity are
missing a wealth of information on diversification potential and ecosystem functioning.
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Cocoseae, Macroecology, Macroevolution, Spatial analysis, Ecological niche modeling
Citação
FREITAS, Cintia; BRUM, Fernanda T.; CÁSSIA-SILVA, Cibele; MARACAHIPES, Leandro; CARLUCCI, Marcos B.; COLLEVATTI, Rosane G.; BACON, CHRISTINE D. Incongruent spatial distribution of taxonomic, phylogenetic, and functional diversity in neotropical cocosoid palms. Frontiers in Forests and Global Change, Lausanne, v. 4, p. 739468, 2021. DOI: 10.3389/ffgc.2021.739468, Disponível em: https://www.frontiersin.org/articles/10.3389/ffgc.2021.739468/full. Acesso em: 22 mar. 2023.