Exceptions to the rule: relative roles of time, diversification rates and regional energy in shaping the inverse latitudinal diversity gradient

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dc.creatorCerezer, Felipe Osmari
dc.creatorMachac, Antonin
dc.creatorRangel, Thiago Fernando Lopes Valle de Britto
dc.creatorDambros, Cristian de Sales
dc.date.accessioned2023-09-04T12:31:41Z
dc.date.available2023-09-04T12:31:41Z
dc.date.issued2021
dc.description.abstractAim: Inverse latitudinal diversity gradients (i-LDGs), whereby regional richness peaks outside the tropics, have rarely been investigated, and their causes remain unclear. Here, we investigate three prominent explanations, postulating that species-rich re gions have had: (1) longer time to accumulate species; (2) faster diversification; and (3) more energy to support species-rich communities. These mechanisms have been shown to explain the tropical megadiversity, and we examine whether they can also explain i-LDG. Location: Global. Time period: Contemporary. Major taxa studied: Amphibians, birds and mammals. Methods: We estimated the time for species accumulation, regional diversification rates and regional energy for six tetrapod taxa (c. 800 species). We quantified the rel ative effects and interactions among these three classes of variables, using variance partitioning, and confirmed the results across alternative metrics for time (community phylometrics and BioGeoBEARS), diversification rates (BAMM and DR) and regional energy (past and current temperature, and productivity). Results: Although regional richness across each of the six taxa peaked in the temper ate region, it varied markedly across hemispheres and continents. The effects of time, diversification rates and regional energy varied greatly from one taxon to another, but high diversification rates generally emerged as the best predictor of high regional richness. The effects of time and regional energy were limited, with the exception of salamanders and cetaceans. Main conclusions: Together, our results indicate that the causes of i-LDG are highly taxon specific. Consequently, large-scale richness gradients might not have a univer sal explanation, and different causal pathways might converge on similar gradients. Moreover, regional diversification rates might vary dramatically between similar envi ronments and, depending on the taxon, regional richness might or might not depend on the time for species accumulation. Collectively, these results underscore the com plexity behind the formation of richness gradients, which might involve a symphony of variations on the interplay of time, diversification rates and regional energy.pt_BR
dc.identifier.citationCEREZER, Felipe O. et al. Exceptions to the rule: Relative roles of time, diversification rates and regional energy in shaping the inverse latitudinal diversity gradient. Global Ecology and Biogeography, Hoboken, v. 31, n. 9, p. 1794-1809, 2022. DOI: 10.1111/geb.13559. Disponível em: https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.13559. Acesso em: 31 ago. 2023.pt_BR
dc.identifier.doi10.1111/geb.13559
dc.identifier.issn1466-822
dc.identifier.issne- 1466-8238
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/23548
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Ciências Biológicas - ICB (RMG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMacroecologypt_BR
dc.subjectMacroevolutionpt_BR
dc.subjectMarine diversitypt_BR
dc.subjectSpecies richnesspt_BR
dc.subjectTemperatept_BR
dc.subjectTerrestrial diversitypt_BR
dc.subjectTetrapodspt_BR
dc.subjectTropicspt_BR
dc.titleExceptions to the rule: relative roles of time, diversification rates and regional energy in shaping the inverse latitudinal diversity gradientpt_BR
dc.typeArtigopt_BR

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