Banca de QUALIFICAÇÃO: TAINÁ JARDIM ANTUNES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : TAINÁ JARDIM ANTUNES
DATE: 20/10/2023
TIME: 14:00
LOCAL: Metapresencial através do link: https://meet.google.com/pyf-xexm-cof
TITLE:

Bromeliad Ecosystems as Bioindicators of Fragmentation and Environmental Vulnerability in the Southern Bahia Atlantic Forest.

KEY WORDS:

biodiversity; ecology; forest remnants; microcosm; phytotelmata.

PAGES: 46
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

Tank bromeliads (Bromeliaceae) form a central tube and lateral tanks that collect rainwater and detritus, establishing a microhabitat for various organisms, with macroinvertebrates being the most prominent. These bromeliad microecosystems have emerged as a relevant ecological model to explore responses of biotic communities to climate and environmental changes. These plants are widely distributed in various environments and naturally replicated, with a significant presence in the Atlantic Forest. This study aims to assess the influence of habitat fragmentation on the taxonomic diversity of macroinvertebrate communities associated with bromeliads, identifying key factors that may drive their variations, such as microclimate, local habitat characteristics, anthropogenic matrices in the surrounding areas, and landscape metrics. Up to this point, 134 bromeliads have been sampled in six environments (open restinga, shrub restinga, arboreal restinga, forest edge forest interior, and muçununga in a Coastal Tablelands Forest (or Tabuleiros Costeiros) region of the Atlantic Forest in southern Bahia. A total of 19.912 macroinvertebrates classified into 92 morphotypes belonging to 15 orders were found. Communities in the muçununga environment exhibited the highest total species richness (58 morphotypes), followed by the forest interior (46). However, when considering evenness, greater diversity is revealed in the forest edge and muçununga. There is substantial variation in species composition among locations, primarily driven by turnover, with the most significant variation identified between forest interior and open restinga communities. The results point to potential responses of these communities to environmental changes through fragmentation processes, primarily driven by variations in light availability and detritus input. This approach will be complemented by landscape predictors, such as land use types and fragment metrics, allowing for inferences across scales of the processes shaping diversity in these microecosystems

COMMITTEE MEMBERS:
Externo à Instituição - TÚLIO PAIVA CHAVES - UESC
Interno - 3072612 - ELFANY REIS DO NASCIMENTO LOPES
Presidente - 3072593 - FELIPE MICALI NUVOLONI
Externo ao Programa - 3066627 - LUIZ FERNANDO SILVA MAGNAGO - null