Banca de DEFESA: MANUELLA PEREIRA CERQUEIRA LEITE

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MANUELLA PEREIRA CERQUEIRA LEITE
DATE: 22/02/2024
TIME: 10:00
LOCAL: on-line
TITLE:

Bamboo (Poales, Poaceae): Important maintainer of immature mosquitoes (Diptera: Culicidae) in a biodiversity hotspot in the city of Rio de Janeiro, Brazil

KEY WORDS:

Tijuca Forest, larval habitats, larvae, ecology

PAGES: 89
BIG AREA: Ciências Biológicas
AREA: Zoologia
SUBÁREA: Zoologia Aplicada
SUMMARY:

Although tropical forests are home to most of the global diversity, they suffer from the most significant knowledge gaps concerning their fauna. Despite its high biodiversity, Brazil is facing an alarming destruction of habitats, with species becoming extinct before they can be discovered or described by science. Therefore, there is an urgent need to expand wildlife inventories, including entomofauna surveys. The present study aimed to analyze the bionomic aspects and the influence of abiotic factors on mosquito fauna whose immature phases develop in two bamboo species, Guadua tagoara and Bambusa vulgaris, in Tijuca National Park, Rio de Janeiro, Brazil. Immatures were collected in 10 artificially drilled bamboos, in five stalks internodes per plant, in two sampling points, from March 2022 to March 2023, during 23 collections. Every 15 days, the water from the internodes was removed through siphoning to obtain the immature ones, with concomitant measurement of pH and temperature. A total of 1845 immatures were obtained, 72.14% at sampling point 1 and 27.86% at sampling point 2. Of this, 1162 individuals reached adulthood, belonging to the following species: Culex
iridescens, Culex neglectus, Haemagogus leucocelaenus, Orthopodomyia albicosta, Sabethes identicus, Sabethes melanonymphe, Sabethes purpureus, Toxorhynchites bambusicola, Toxorhynchites sp., Trichoprosopon compressum, Trichoprosopon pallidiventer, Wyeomyia arthrostigma, Wyeomyia codiocampa, Wyeomyia lutzi, Wyeomyia oblita, Wyeomyia personata, Wyeomyia serrata, and Wyeomyia sp.. It was observed that the greatest abundance of immature mosquitoes occurred in the Guadua tagoara bamboo species, located at sampling point 1. The study revealed that higher dominance rates were observed in bamboos 2 and 10, with dominance of Orthopodomyia albicosta and Culex. neglectus. The greatest richness was observed in bamboos 1 and 5. It was found that Culex neglectus, Sabethes identicus, Wyeomyia oblita and Wyeomyia lutzi frequented all bamboo plants. The biggest peaks in the abundance of immature culicids were found in November 2022 and January 2023.The Tijuca National Park is a tourist spot and receives a large number of visitors. Thus, humans can become an accessible food source for mosquitoes in this area, making the species survey critical since important
arbovirus vectors have been recorded in Rio de Janeiro.

COMMITTEE MEMBERS:
Interno - ***.893.247-** - JERONIMO AUGUSTO FONSECA ALENCAR - FIOCRUZ
Externo à Instituição - CARLOS BRISOLA MARCONDES - UFSC
Externa à Instituição - SHAYENNE OLSSON FREITAS SILVA - FIOCRUZ
Externa à Instituição - CECÍLIA FERREIRA DE MELLO - FIOCRUZ