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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Linking population-level and microevolutionary processes to understand speciation dynamics at the macroevolutionary scale

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Alencar, Laura Rodrigues Vieira de [1] ; Quental, Tiago Bosisio [1]
Total Authors: 2
[1] Univ Sao Paulo, Inst Biociencias, Dept Ecol, Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ECOLOGY AND EVOLUTION; v. 11, n. 11, p. 5828-5843, JUN 2021.
Web of Science Citations: 0

Although speciation dynamics have been described for several taxonomic groups in distinct geographic regions, most macroevolutionary studies still lack a detailed mechanistic view on how or why speciation rates change. To help partially fill this gap, we suggest that the interaction between the time taken by a species to geographically expand and the time populations take to evolve reproductive isolation should be considered when we are trying to understand macroevolutionary patterns. We introduce a simple conceptual index to guide our discussion on how demographic and microevolutionary processes might produce speciation dynamics at macroevolutionary scales. Our framework is developed under different scenarios: when speciation is mediated by geographical or resource-partitioning opportunities, and when diversity is limited or not. We also discuss how organismal intrinsic properties and different overall geographical settings can influence the tempo and mode of speciation. We argue that specific conditions observed at the microscale might produce a pulse in speciation rates even without a pulse in either climate or physical barriers. We also propose a hypothesis to reconcile the apparent inconsistency between speciation measured at the microscale and macroscale, and emphasize that diversification rates are better seen as an emergent property. We hope to bring the reader's attention to interesting mechanisms to be further studied, to motivate the development of new theoretical models that connect microevolution and macroevolution, and to inspire new empirical and methodological approaches to more adequately investigate speciation dynamics either using neontological or paleontological data. (AU)

FAPESP's process: 18/05462-6 - Ecological controls of biodiversity in deep time
Grantee:Tiago Bosisio Quental
Support type: Regular Research Grants
FAPESP's process: 16/14292-1 - Spatial and temporal dynamics of species coexistence: a global approach using snakes and lizards as models
Grantee:Laura Rodrigues Vieira de Alencar
Support type: Scholarships in Brazil - Post-Doctorate