Banca de DEFESA: Nadia Romina Cardozo Escobar

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : Nadia Romina Cardozo Escobar
DATE: 24/11/2022
TIME: 14:00
LOCAL: Plataforma Teams
TITLE:

Efeitos da perda de hábitat e fragmentação sobre comunidades de aves e paisagens acústicas do Chaco Paraguaio

KEY WORDS:

Birds, deforestation, Chaco, Paraguay, Bioacoustics, Land use

PAGES: 100
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia de Ecossistemas
SUMMARY:

Chaco Seco is the largest semi-arid region of South America. The high rates of dry forest suppression in recent years have made it a global hotspot for deforestation, with cattle ranching and extensive agriculture being the primary practice. Habitat conversion has led to an increase in the fragmentation process, transforming the landscape, supported by economic and development policies. The fragmentation process affects bird and specialist bird communities adapted to the semi-arid environment, changing the landscape structure, reducing the habitat surface, and the availability of resources, and altering the microenvironment. Therefore, this work discusses the responses of bird communities to changes in landscape structure, as well as changes in the microenvironment resulting from habitat loss and dry forest fragmentation and the potential use of acoustic indices as a quick assessment of bird communities aiming at increase monitoring in threatened areas such as Chaco Seco. This thesis is divided into three chapters: 1 impacts of habitat loss and fragmentation on taxonomic, functional, and phylogenetic diversity of birds (Impacts of habitat loss and habitat fragmentation on multiple facets of avian diversity in a global deforestation hotspot); 2 bird responses to the microenvironment measuring the vegetation structure and environmental variables in fragments that structurally connect the landscape (Bird communities in the Dry Chaco of South America: vegetation structure and climate effects); and 3 performance of acoustic indices in the representation of bird richness in continuous forests and forest corridors (Acoustic indices as a rapid assessment of bird communities in the Dry Chaco).

BANKING MEMBERS:
Presidente - 1334398 - RICARDO BOMFIM MACHADO
Interna - 1122706 - MERCEDES MARIA DA CUNHA BUSTAMANTE
Interno - 2285186 - MURILO SVERSUT DIAS
Externo à Instituição - GONÇALO FERRAZ - UFRGS
Externo à Instituição - ANGEL ALBERTO