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Phylogenetic Endemism and Comparative Phylogeography of the Brazilian Amazon Herpetofauna

Grant number: 19/07090-1
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): August 15, 2019
Effective date (End): February 14, 2020
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal Investigator:Miguel Trefaut Urbano Rodrigues
Grantee:Sérgio Marques de Souza
Supervisor: Craig Charles Moritz
Host Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Australian National University (ANU), Australia  
Associated to the scholarship:17/08357-6 - Phylogenetic Endemism and Comparative Phylogeography of the Brazilian Amazon Herpetofauna, BP.PD


How and when did the evolution of biological megadiversity take place in the Amazon? This is one of the most contentious issues in neotropical biogeography, being discussed since the XIX century. Regarding reptiles and amphibians, one of the few consensual ideas on this subject is that the taxonomic diversity as currently described is underestimated. Phylogeographic analyses highlighted strong genetic structure and cryptic diversity in several organisms previous classifid as widespread species throughout the biome. Unfortunately, this new layer of diversity is not being incorporated in measures of regional biological diversity or conservation strategies, mainly because genetic lineages are hardly described as distinct species. In this sense, measures of Phylogenetic Diversity (PD) and Phylogenetic Endemism (PE) reveal and project the evolutionary singularity onto geographical space, bypassing the asymmetries between taxonomy and evolutionary biology, and introducing the cryptic diversity in conservation programs. Therefore, one of the goals of this proposal is to reveal PE patterns in Brazilian Amazon, through the compilation of published molecular data and the generation of new data for 16 herpetofauna species. Besides reveal patterns, we also intend to clarify the historical processes responsible for herpetofaunal diversification in the Amazon, performing a comparative phylogeography analysis using two cryptic species complex, Chatogekko amazonicus e Loxopholis spp, using Next Generation DNA sequencing protocols (ddRADseq) and applying a statistical phylogeography framework, enabling a robust test of the various hypotheses already proposed to explain the emergence and maintenance of the Amazonian biodiversity.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CAMACHO, AGUSTIN; ANGILLETTA JR, MICHAEL J.; LEVY, OFIR. A Theoretical Thermal Tolerance Function for Ectothermic Animals and Its Implications for Identifying Thermal Vulnerability across Large Geographic Scales. DIVERSITY-BASEL, v. 15, n. 5, p. 14-pg., . (19/07090-1)

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