Banca de QUALIFICAÇÃO: SARA YURI MEDEIROS WATANABE

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : SARA YURI MEDEIROS WATANABE
DATE: 21/02/2025
TIME: 09:00
LOCAL: Auditório
TITLE:

Soldiers of Nasutitermes corniger (Motschulsky, 1855) (Termitidae: Nasutitermitinae) modulate the behavioural effects of the insecticide imidacloprid

KEY WORDS:

tolerance, neonicotinoid, grooming, trophallaxis, vibration

PAGES: 33
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

The persistent failures of chemical termite control suggest the existence of mechanisms capable of mitigating the effects of insecticides on this pest. How can termites tolerate insecticides? With this in mind, we analyzed one of the different strategies that termites could use to mitigate the negative effects of insecticide. Specifically, we tested whether the presence of soldiers of Nasutitermes corniger (Termitidae) increases the number of vibrational movements that trigger a greater number of prophylactic behaviors compared to groups without soldiers. In general, the frequency of antennation, grooming, trophallaxis, and vibratory behaviors was affected by the presence of soldiers. In groups with soldiers, all behaviors had a higher frequency, with the exception of antennation. In the behavioral profile, it was observed that there is a cascade of behaviors in the presence of soldiers that favors the perception of insecticide and, consequently, the increase in prophylactic behaviors. Our results show that N. corniger soldiers are able to modulate their behavior as a strategy to mitigate the effect of the insecticide and increase the colony's chances of
survival. This work provides new insights that can help develop new strategies to improve termite control success rates.

 

COMMITTEE MEMBERS:
Presidente - PAULO FELLIPE CRISTALDO
Externo à Instituição - JOSÉ WAGNER DA SILVA MELO - UFPE
Externa à Instituição - ROBERTA RAMOS COELHO - UFRPE