Banca de DEFESA: VITÓRIA RAQUEL DA SILVA LIMA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VITÓRIA RAQUEL DA SILVA LIMA
DATE: 12/04/2024
TIME: 14:00
LOCAL: meet.google.com/avm-aesx-eap
TITLE:

DISTRIBUTION PATTERNS, RICHNESS, ENDEMISM AND CONSERVATION OF PHYLLANTHACEAE IN THE ATLANTIC FOREST OF NORTHEAST BRAZIL

KEY WORDS:

Diversity, Conservation, Tropical Forest, Phyllantheae, Antidesmatoideae

PAGES: 152
BIG AREA: Ciências Biológicas
AREA: Botânica
SUMMARY:

The Brazilian Atlantic Forest is one of the two most important biodiversity hotspots on the
planet. Despite its diversity, the biome faces serious challenges, especially due to environmental
degradation. The Atlantic Forest of the Northeast harbors a high diversity of Phyllanthaceae
species, including rare and/or endemic taxons. In the area we highlight the genera Phyllanthus
and Moeroris, with several species popularly known as "quebra-stone" due to their cultural and
medicinal applications. However, the region is over a crescent area, with more than 95% of its
original coverage already lost, with the remainder represented by small discontinuous
fragments. To understand the distribution and richness of Phyllanthaceae species in the area,
we analyzed data from botanical collections and specialized literature. Statistical models are
applied to analyze the relationship between species richness and climatic and edaphic factors.
The results will reveal that Bahia is the state with the greatest richness of Phyllanthaceae,
followed by Pernambuco and Alagoas. Foram 42 species and 13 genera have been identified in
the region, including 13 endemic species. The Atlantic Forest of the Northeast presents three
centers of endemism of Phyllanthaceae, two of them in the South of Bahia, which demonstrates
the importance of protection in that specific area. Latitude, altitude, temperature and
precipitation are the factors related to this species richness. Unfortunately, many endemic
species face the risk of extinction, and only a few of them are in environmental protection areas.
Human activity represents a significant threat both for the species and for the vegetation of the
Southern Bahia region. Additionally, we provide clarifications on the identity of P. claussenii
and P. submarginatus as well as the lectotyping of the species P. acuminatus and Savia
sessiliflora aiming to avoid ambiguities in future studies and a study on the diversity, taxonomy
and conservation of Phyllanthaceae for Pernambuco, which after The lectotyping of H. oblonga,
M. neogranatensis, P. orbiculatus and P. sellowianus, the latter being recorded for the first time
in the Northeast and in Caatinga. It is necessary to invest in additional studies and implement
urgent protective measures to preserve the species and habitats of the family and the Atlantic
Forest of the Northeast.

COMMITTEE MEMBERS:
Externo à Instituição - LUCAS CARDOSO MARINHO - UFMA
Externa à Instituição - PRISCILA ORLANDINI - UFSCAR
Presidente - SARAH MARIA ATHIE DE SOUZA