Banca de QUALIFICAÇÃO: ISADORA DROVANDI RODRIGUES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ISADORA DROVANDI RODRIGUES
DATA : 03/12/2021
HORA: 14:00
LOCAL: Remota : https://meet.google.com/uvs-tknw-cvh
TÍTULO:

How artifical light at night affects the incrusting community and the dynamics of predation on urbanized coastal habitats?

PÁGINAS: 49
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Aplicada
RESUMO:

The benefits from artificial light could be noted immediately, although its potential damages only started to be discussed over 100 years after its creation. The effects of artificial light at night (ALAN) on terrestrial communities are well known and consolidated, but not on the marine environment, where the ocean sprawl has promoted the extensive use of artificial lights. Here, we performed six experiments to characterize the artificial lighting on the coast and its effects on the recruitment and development of the fouling community, on the sessile community stabilished on the sides of platforms, on the effects of predation on the communities and on the community of predators. It was identified that in the five cities evaluated in the state of São Paulo, the ALAN reach much farther than the location of installation, resulting even in the increase of the brightness of the night sky. ALAN actively diminished recruitment of some groups such as ascidians of the Didemnidae family and some hydrozoans, but resulted in a higher cover of sponges on communities 50cm depth and reduced the differences on the sessile communities along the depth gradient. On the other hand, it was not detected an effect of ALAN on the composition of the predator species, maybe due to the strong generalist predation in the area, which was independent of the period which the communities were exposed to predation (day or night) or the presence or absence of ALAN during the night. This way, ALAN affected important processes, such as recruitment and the abundance of some species, which will affect the structure of the fouling community. This is one of the first work demonstrating the importance of ALAN to marine communities on subtropical regions on the South hemisphere and the results of the experiments that are still running could allow us to properly evaluate how ALAN affects fouling communities and predations in this region, which is one of the most populous regions on the South hemisphere.

 

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1768895 - GUSTAVO MUNIZ DIAS
Membro Titular - Examinador(a) Interno ao Programa - 1763449 - FERNANDO ZANIOLO GIBRAN
Membro Titular - Examinador(a) Externo à Instituição - LEONARDO QUEROBIM YOKOYAMA - UNIFESP
Membro Suplente - Examinador(a) Externo à Instituição - ILANA ROSENTAL ZALMON - UENF
Membro Suplente - Examinador(a) Externo à Instituição - EDSON APARECIDO VIEIRA FILHO - UFRN