Alarm pheromones and the influence of pupal odor on the aggressiveness of Polybia paulista (Ihering) (Hymenoptera: Vespidae)
J. venom. anim. toxins
;
4(1): 61-9, 1998. graf
Artigo
em Inglês
| LILACS
| ID: lil-201615
ABSTRACT
Field bioassays were used to demonstrate that aggressive behavior of Polybia paulista (Ihering) workers is elicited by alarm pheromones present in the venom reservoirs of nest defenders and that the brood care pheromone (pupal odor) produced by the young inside the nest also plays an important defensive role. Pupal odor was extracted from the surface of pupa bodies with methanol. When bioassayed alone, the pupal odor elicited onlyu attractiveness of workers towards the odor source, but no stinging attacks were observed. However, in the presence of alarm pheromones, the brood care pheromone potentiated the effect caused by the pupal odors, increasing the number of stinging attacks during an action of colony defense. Thus, the presence of pupae within the nest not only releases brood care but also enhances the aggressiveness of workers in P. paulista colonies.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Feromônios
/
Limiar Sensorial
/
Reflexo de Sobressalto
/
Vespas
/
Comportamento Animal
/
Mecanismos de Defesa
Limite:
Animais
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
J. venom. anim. toxins
Assunto da revista:
Toxicologia
Ano de publicação:
1998
Tipo de documento:
Artigo
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