Banca de DEFESA: EMERSON CAMPOS BARBOSA JÚNIOR

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : EMERSON CAMPOS BARBOSA JÚNIOR
DATE: 08/03/2024
TIME: 14:00
LOCAL: Instituto de Biologia - Universidade Federal da Bahia
TITLE:
The effects of phenotypic plasticity on diversification rates and adaptive evolution in simulated environments with different climatic and cost contexts

KEY WORDS:
anthropogenic changes; contemporary adaptation; extended evolutionary synthesis; macroecology; macroevolution; natural selection

PAGES: 90
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia Teórica
SUMMARY:
Phenotypic plasticity can both hinder and facilitate genetic evolution, thus affecting macroevolution. However, the mechanisms and associations of phenotypic plasticity with biodiversity patterns remain unresolved. In this paper, we investigate the effect of phenotypic plasticity on adaptive evolution in the context of climatic changes and presence of the plasticity costs, specifically examining the rates of trait evolution, speciation, extinction, and diversification. We employed an eco-evolutionary agent-based model, incorporating body temperature as a plastic trait that dynamically responds to fluctuations in environmental temperature. We found the same pattern of results for both climatic and cost contexts. We found that an increase in plasticity leads to a decrease in extinction and trait evolution rates. Systems with species exhibiting plasticity experience higher speciation rates. Additionally, as plasticity increases in systems, diversification rates also increase. Our study supports the hypothesis that plasticity can facilitate adaptive evolution. It provides new insights into the effect of plasticity on adaptive evolution at larger scales, considering relevant mechanisms and factors such as population size, grouping, occupancy, plasticity extension, and dispersion.

COMMITTEE MEMBERS:
Presidente - 3062840 - BRUNO VILELA DE MORAES E SILVA
Interno - 1576452 - RICARDO DOBROVOLSKI
Externo à Instituição - DIOGO BORGES PROVETE - UFMS
Externa à Instituição - TIANA KOHLSDORF - USP
Externo à Instituição - JULIANO SARMENTO CABRAL
Notícia cadastrada em: 07/02/2024 16:10
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