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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.)

Arboreality constrains morphological evolution but not species diversification in vipers

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Vieira de Alencar, Laura Rodrigues [1] ; Martins, Marcio [1] ; Burin, Gustavo [1] ; Quental, Tiago Bosisio [1]
Total Authors: 4
[1] Univ Sao Paulo, Inst Biociencias, Dept Ecol, Rua Matao, Travessa 14, Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Web of Science Citations: 3

An increase in ecological opportunities, either through changes in the environment or acquisition of new traits, is frequently associated with an increase in species and morphological diversification. However, it is possible that certain ecological settings might prevent lineages from diversifying. Arboreality evolved multiple times in vipers, making them ideal organisms for exploring how potentially new ecological opportunities affect their morphology and speciation regimes. Arboreal snakes are frequently suggested to have a very specialized morphology, and being too large, too small, too heavy, or having short tails might be challenging for them. Using trait-evolution models, we show that arboreal vipers are evolving towards intermediate body sizes, with longer tails and more slender bodies than terrestrial vipers. Arboreality strongly constrains body size and circumference evolution in vipers, while terrestrial lineages are evolving towards a broader range of morphological variants. Trait-dependent diversification models, however, suggest similar speciation rates between microhabitats. Thus, we show that arboreality might constrain morphological evolution but not necessarily affect the rates at which lineages generate new species. (AU)

FAPESP's process: 12/04072-3 - The role of extinction and speciation rates, and the effect of different levels of biological organization on the origin and maintenance of biodiversity
Grantee:Tiago Bosisio Quental
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/50206-9 - Origin and evolution of snakes and their diversification in the Neotropics: a multidisciplinary approach
Grantee:Hussam El Dine Zaher
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 14/03621-9 - The roles of diet, speciation and extinction on bird diversification and frugivory network assembling
Grantee:Gustavo Burin Ferreira
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/02038-2 - Species and morphological diversification in Viperidae snakes: patterns and processes
Grantee:Laura Rodrigues Vieira de Alencar
Support Opportunities: Scholarships in Brazil - Doctorate