Banca de QUALIFICAÇÃO: RAFAEL PEREIRA DOS SANTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RAFAEL PEREIRA DOS SANTOS
DATE: 23/06/2023
TIME: 14:00
LOCAL: UNIR _ ON LINE
TITLE:

PHENOLOGICAL MONITORING IN A FRAGMENT OF TERRA FIRM FOREST IN PORTO VELHO (RO): EDGE AND FRAGMENTATION EFFECTS

KEY WORDS:

Climate change; anthropogenic actions; phenophase; fragmentation; edge effect; seasonality; global changes; UAV

PAGES: 57
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia Aplicada
SUMMARY:

Plant phenology is a traditional science focused on monitoring, understanding, and predicting recurrent life cycle events of species, mainly related to climate. By understanding the phenological patterns of tropical vegetation and what drives the seasonality of leaf production in tropical communities, we can better predict the effects of climate change on vegetation dynamics and prevent the loss of ecosystem functionalities. This study aimed to monitor phenology in a fragment of terra firm forest in Porto Velho (RO), conducted in permanent plots, which comprise a 1-hectare sample grid, subdivided into 100 plots of 10m x 10m. Phenophases were collected through monthly observations aided by binoculars and UAV (unmanned aerial vehicle). The UAV provided a differential to provide greater accuracy in detecting phenological patterns in the canopy of trees. The phenological patterns of leaves, flowers, and fruits were analyzed using multidimensional techniques considering the stratification levels of individuals and species and their position in the fragment (edge vs. interior). The patterns detected allowed elucidating the mechanisms that control leaf and reproductive phenology in terra firm fragments in the Amazon, such as (i) specific environmental factors that determine phenology, (ii) molecular and physiological processes that regulate phenology, and (iii) whether phenology variation reflects genetic differences (high interspecific variation) or plastic responses to environmental heterogeneity (high intraspecific variation). This can help resolve pending debates on the mechanisms by which species respond to seasonal climate variations and improve predictions of plant responses to global changes

COMMITTEE MEMBERS:
Presidente - 1632974 - ANGELO GILBERTO MANZATTO
Interna - 1387002 - OSVANDA SILVA DE MOURA
Interno - 1905088 - RONALDO DE ALMEIDA
Externo ao Programa - ***.330.484-** - RICARDO TEIXEIRA GREGORIO DE ANDRADE - IFRO
Externo ao Programa - ***.908.872-** - SUSAMAR PANSINI - UNIR