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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.)

The role of vicariance and dispersal on the temporal range dynamics of forest vipers in the Neotropical region

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Author(s):
Pontes-Nogueira, Matheus [1, 2] ; Martins, Marcio [3] ; Alencar, V, Laura R. ; Sawaya, Ricardo J. [4]
Total Authors: 4
Affiliation:
[1] Univ Fed Sao Paulo, Grad Ciencias Biol, Diadema - Brazil
[2] Univ Fed ABC, Programa Posgrad Evolucao & Diversidade, Sao Bernardo Do Campo - Brazil
[3] Univ Sao Paulo, Inst Biociencias, Dept Ecol, Sao Paulo - Brazil
[4] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Sao Bernardo Do Campo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: PLoS One; v. 16, n. 9 SEP 17 2021.
Web of Science Citations: 0
Abstract

The emergence of the diagonal of open/dry vegetations, including Chaco, Cerrado and Caatinga, is suggested to have acted as a dispersal barrier for terrestrial organisms by fragmenting a single large forest that existed in South America into the present Atlantic and Amazon forests. Here we tested the hypothesis that the expansion of the South American diagonal of open/dry landscapes acted as a vicariant process for forest lanceheads of the genus Bothrops, by analyzing the temporal range dynamics of those snakes. We estimated ancestral geographic ranges of the focal lancehead clade and its sister clade using a Bayesian dated phylogeny and the BioGeoBEARS package. We compared nine Maximum Likelihood models to infer ancestral range probabilities and their related biogeographic processes. The best fitting models (DECTS and DIVALIKETS) recovered the ancestor of our focal clade in the Amazon biogeographic region of northwestern South America. Vicariant processes in two different subclades resulted in disjunct geographic distributions in the Amazon and the Atlantic Forest. Dispersal processes must have occurred mostly within the Amazon and the Atlantic Forest and not between them. Our results suggest the fragmentation of a single ancient large forest into the Atlantic and Amazon forests acting as a driver of vicariant processes for the snake lineage studied, highlighting the importance of the diagonal of open/dry landscapes in shaping distribution patterns of terrestrial biota in South America. (AU)

FAPESP's process: 17/11796-1 - Evolution of the distribution patterns of forest jararacas
Grantee:Matheus Pontes Nogueira
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 18/14091-1 - Effects of habitat disturbance on communities of amphibians and squamate reptiles: subsidies for management programs, species conservation assessments and conservation action plans
Grantee:Marcio Roberto Costa Martins
Support Opportunities: Regular Research Grants
FAPESP's process: 14/23677-9 - New approaches to ecology and conservation: phylogenetic and functional diversity of amphibians and snakes of Brazilian Atlantic Forest
Grantee:Ricardo Jannini Sawaya
Support Opportunities: Regular Research Grants