Banca de DEFESA: NATHALIA MENDONÇA DE ASSIS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : NATHALIA MENDONÇA DE ASSIS
DATE: 26/09/2023
TIME: 14:00
LOCAL: Videoconferência: https://meet.google.com/vkx-pimj-vmr
TITLE:

GASTEROID FUNGI (BASIDIOMYCOTA) IN THE AMAZON FOREST: TAXONOMY AND ECOLOGICAL MODELING

KEY WORDS:

Gasteromycetes, Basidiomycota, Climate change, Ecological modeling, Neotropics

PAGES: 110
BIG AREA: Ciências Biológicas
AREA: Botânica
SUBÁREA: Taxonomia Vegetal
SPECIALTY: Taxonomia de Criptógamos
SUMMARY:

Biodiversity has faced numerous challenges due to human activities. Habitat degradation, along with the worsening of climate change, illustrates the impacts of these actions. Gasteroid fungi, a cosmopolitan group of organisms with great diversity, are subject, like fungi in general, to the same threats that affect animals and plants due to these factors. The objective of this study was to conduct a diagnosis of current knowledge about gasteroid fungi in the Amazon Rainforest through a literature review and consultation of specialized databases, as well as to model the potential geographic distribution of three gasteroid fungi species (Geastrum echinulatum, Geastrum entomophilum, and Staheliomyces sinctus) for the present and future in two distinct climatic scenarios. Additionally, using three different algorithms (MXS, SVM, and RF), important environmental variables influencing species distribution were analyzed. The literature checklist published up to the year 2023 confirmed the occurrence of 83 species distributed across 22 genera, eight families, and four orders. The most representative genus was Geastrum, followed by Cyathus, Lycoperdon, and Phallus. We present an identification key for gasteroid fungi genera in the Amazon and a distribution map of the records. In the potential distribution models, the species S. cinctus performed the best in the analyzed metrics, and the Random Forest (RF) algorithm demonstrated the best overall performance for most species, with precipitation and temperature-related variables being the most influential in species distribution. In the distribution maps generated for the current scenario, the species G. echinulatum and S. cinctus showed broad suitability for much of the Amazonian domain. On the other hand, the species G. entomophilum exhibited more restricted suitability. Future models predict a reduction in suitable areas for these species compared to current distribution models. This process of climate suitability loss occurs even in the optimistic climate change scenario.

COMMITTEE MEMBERS:
Presidente - 1452763 - IURI GOULART BASEIA
Externo à Instituição - ALEXANDRE GONÇALVES DOS SANTOS E SILVA FILHO - IFSP
Externa à Instituição - GISLAINE CRISTINA DE SOUZA MELANDA - NÃO INFORMADO
Externo à Instituição - RENATO JUCIANO FERREIRA - URCA
Externa à Instituição - TIARA SOUSA CABRAL - UFAM