Banca de DEFESA: MARCEL MIRANDA DE MEDEIROS SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MARCEL MIRANDA DE MEDEIROS SILVA
DATA : 31/08/2017
HORA: 18:00
LOCAL: Sala de Reuniões do CB
TÍTULO:

Phlebotomines Sand Flies (Diptera: Psychodidae: Phlebotominae) of na Environmental Protection Zone and its surroundings: behavioral response to different light sources.

PALAVRAS-CHAVES:

luminous spectrum; phlebotomine; entomological surveillance;LED; environmental protection zone.

PÁGINAS: 123
GRANDE ÁREA: Ciências Biológicas
ÁREA: Microbiologia
RESUMO:

Deforestation has directly impacted the biology and bionomy of leishmaniasis
vectors. Entomological surveillance, as a measure recommended by the WHO to
control the transmission of Leishmania, requires the capture of sandflies in different
areas. For this purpose, the Center for Disease Control (CDC) light traps are the most
commonly used. Adaptations have been developed aiming at greater attractiveness of
sand flies and, consequently, more insects captured in the traps. The perception of
different wavelengths of the spectrum visible by sand flies is not yet fully elucidated.
The study was based on the investigation of sand fly fauna of an environmental
protection zone in the north of Natal city and its surroundings, also observing the
attractiveness of each species in relation to the visible spectrum emitted by three
different lamps: blue LED, red LED and incandescent control. Catches of sand flies
occurred in 12 months, in six points distributed equally in two distinct areas and daily
the traps were changed of position. Identification of captured sand flies revealed
seven species divided into five genera. The Kruskal-Wallis H' test rejected the null
hypothesis, revealing a significant influence between the light spectrum emitted by
the trap lamp and the abundance of captured insects. The test of the generalized linear
model demonstrated a noteworthy influence between the area-sex and the color-area
groups with the number of sandflies collected. The traps that use blue LED showed a
greater effectiveness in the capture of sandflies, presenting values almost twice as
much as the incandescent lamp. The red LED, despite having a low density of sand
flies, presented the highest index of diversity of catches, in this way, its role in
entomological surveillance should not be overlooked. LED lamps replace, without
any loss in method sensitivity, the use of incandescent bulbs.

MEMBROS DA BANCA:
Externo ao Programa - 1161844 - HERBET TADEU DE ALMEIDA ANDRADE
Presidente - 350500 - MARIA DE FATIMA FREIRE DE MELO XIMENES
Externo à Instituição - PATRICIA BATISTA BARRA MEDEIROS BARBOSA - UERN