Banca de DEFESA: ELVIS ALMEIDA PEREIRA SILVA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ELVIS ALMEIDA PEREIRA SILVA
DATE: 06/10/2020
TIME: 15:00
LOCAL: on-line
TITLE:

Diversification and evolution in neotropical anurans through phylogeography and historical biogeograph

KEY WORDS:

Biogeography, Phylogeography, Amphibians, South America, Brazil, Species delimitation

PAGES: 148
BIG AREA: Ciências Biológicas
AREA: Zoologia
SUBÁREA: Taxonomia dos Grupos Recentes
SUMMARY:

Biology has as one of its main questions, the search for patterns of distribution
of organisms. The science that seeks to identify the processes that led to the formation of
these standards is Biogeography. As access to molecular data increased between the 1970s
and 1980s, the study of Biogeography expanded and then the term Phylogeography was
created, whose main objective is to understand the processes that acted on the
geographical distribution of species, based on genetic data. Testing the patterns and
processes that led to these distributions in philopatric organisms, with low vagility and
high rates of endemism is interesting when trying to understand historical
geomorphological and climatic events. The neotropical region is one of the most diverse
regions on the planet, as it is home to enormous biodiversity, with the greatest diversity
of amphibians in the world, in addition to having a diversified geomorphology due to the
historical complex of evolution of the continent and different types of ecoregions. In the
past millions and years, the South American continent has undergone severe changes due
to marine incursions, uplift of mountain ranges and the closing of the Isthmus of Panama,
which changed the climate of South America completely. In addition to these geological
events, climatic events also acted in the modification of the neotropical landscape several
times, causing forest morphoclimatic domains to expand and retract over time, and
consequently, species dependent on forest habitats, fluctuated with the events of
expansion and retraction of these forests. Anurans occupy a wide range of habitats, have
low vagility and many species possibly followed the forest cycles, making them good
models for understanding the evolution of these morphoclimatic domains. With this, the
present thesis presents two chapters, the first, phylogeographic structure of Boana
crepitans and the second, biogeographic aspects of the species of the Sphaenorhynchini
tribe. In addition to pointing out information about the historical connections between the
forest morphoclimatic domains of the Amazon and the Atlantic Forest and identifying
some main processes that have acted in the diversification of these taxa.

BANKING MEMBERS:
Externa à Instituição - ELIANA FARIA DE OLIVEIRA
Externa à Instituição - SARAH MÂNGIA
Externo à Instituição - FELIPE CAMURUGI ALMEIDA GUIMARÃE
Interno - 2289640 - HELIO RICARDO DA SILVA
Interno - 3138877 - RICARDO UTSUNOMIA