Sentences with phrase «alarm pheromone»

In addition, isoamyl acetate (IAA), which is the major component of the honeybee alarm pheromone [20], is emitted from a hot defensive bee ball [6].

The active chemical in an aphid's alarm pheromone is (E)- beta - farnesene — one of a group of a plant metabolites, known as terpenoids.

«In large laboratory tanks, ruffe avoid the alarm pheromone upon contact,» Sorensen says.

«We developed a new and standardized method to evaluate alarm pheromone activity in yellowjackets and other social wasps that is inexpensive and easy to use.

The team discovered that the activation of these CRH neurons causes the release of a chemical signal, an «alarm pheromone», from the mouse that alerts the partner.

«This is the first time I've seen an alarm pheromone used as a sexual one,» says Ryne.

To resolve the mystery around their complex defensive behavior, a Canadian research team, led by Dr. Sean McCann, Simon Fraser University, have used simple components to develop and construct a device that consequently helped them to locate the species - specific alarm pheromones in three wasp groups.

The scientist have used this new method to figure whether three species of yellow jackets (the western yellow jacket, the common yellow jacket and the German yellow jacket) have alarm pheromones, and whether each species is able to recognize each of the alarm pheromones of the rest.

«Call for arms and stings: Social wasps use alarm pheromones to coordinate their attacks.»

«We found evidence for alarm pheromones in all three species, and that each species recognizes and responds to the other species» alarm pheromones in similar ways,» say the researchers.

One way the social wasps have found to increase the efficiency of their defence is through chemical signals, called alarm pheromones, which are used to rouse the colony to action and mark intruders for attack.

Release of alarm pheromones near a hive or swarm may attract other bees to the location, where they will likewise exhibit defensive behaviors until there is no longer a threat (typically because the victim has either fled or been killed).

Not exact matches

Bees communicate in large part through chemical pheromones, with different odors signaling everything from alarm to an individual bee's status.

However, a group of Dutch scientists has discovered that if aphids are exposed to the active chemical present in their «alarm» pheromone, they emerge from the lettuce hearts and can be killed by relatively small doses of insecticide (Journal of Applied Entomology, vol 115, p 432).

The flower mimics the chemical signals, or pheromones, released by alarmed western honeybees (Apis mellifera) during a predator attack.