Banca de QUALIFICAÇÃO: JUCÉLIA ROSSANA DE MEDEIROS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JUCÉLIA ROSSANA DE MEDEIROS
DATE: 05/02/2021
TIME: 09:00
LOCAL: Sala virtual
TITLE:

Diptera of sanitary importance in urban environments in the semiarid region of Pernambuco

KEY WORDS:

Muscoid dipterans. Street fairs. Musca domestica. Synanthropy. Insect vectors.

PAGES: 74
BIG AREA: Ciências Biológicas
AREA: Microbiologia
SUMMARY:

The order Diptera is a diverse group of insects, has a cosmopolitan distribution and a high capacity to colonize different types of environments. In this order, there are muscoid representatives who have a high capacity to adapt to the environment modified by man - synanthropic environments, in view of their high food plasticity and great dispersion capacity. Additionally, they have high medical and sanitary relevance, since they are related to the transmission of pathogens. In this context, it is known that anthropic environments (e.g. street fairs) with high human circulation and food supply can directly influence the composition and structure of muscoid dipter assemblies, since it provides the facilities offers and abundance of food for flies. Therefore, the objective of this work was to evaluate the effect of street fairs on the composition and structure of assemblies of flies with sanitary importance in an urban environment in the region semiarid of Pernambuco. In addition, we seek to understand the role of these insects in the dispersion of helminth eggs and protozoan cysts. To this end, collections of dipterans were carried out in commercial spots in the town of Toritama, Semiarid of Pernambuco - Brazil, with the flies being captured from traps called “Ratoeira Adesiva Cola Rato” before and after the occurrence of street fairs. Throughout the study, a total of 7.780 specimens belonging to six families of dipterans were recorded. Muscidae was the most representative family with 96.98% of all flies caught, followed by Sarcophagidae (1.99%), Phoridae (0.53%), Calliphoridae (0.42%), Fanniidae (0.03%) and Stratiomyidae (0.02%). Muscidae was also the most diverse taxon with the registration of four species, followed by Sarcophagidae (3 spp.), Calliphoridae, Phoridae and Stratiomyidae with two species each, and Fanniidae with one species. In addition, it was observed that the presence of the fair influences the structure of the assemblies, which is more abundant after the occurrence of the street fairs (H = 6.56; df = 1; P <0.01). Regarding the composition of the assemblies, 50% of the species were common to both treatments, with emphasis on the dominant species Musca domestica and Megaselia scalaris. There was also the presence of parasitological structures (similar to helminth eggs) in the samples before and after the fair. In this way, the contributions of this study reveal that street fairs can modulate the structure and composition of fly assemblies in urban environments, and may even offer health risks, since parasitological structures were being transported by these insects.

BANKING MEMBERS:
Interna - 1218940 - ANTONIA CLAUDIA JACOME DA CAMARA
Externa à Instituição - CARINA MARA DE SOUZA
Presidente - 067.948.304-77 - TACIANO DE MOURA BARBOSA - UFRN