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ENVS 2210 (46)
Chapter 17-20

Bees - Biology and Management, Chapters 17-20

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University of Guelph
Environmental Sciences
ENVS 2210
Ernesto Guzman

Chapter SummariesBees Biology and ManagementChapter 17 Dance CommunicationCommunication Action by one animal that influences another transmittingreceiving info and messagesVisual communication through colour posture shape movement and timingSound communication limited to anthropods and vertebratesChemical communication completed with infochemicalschemicals released by one specimen that influence the behaviour of another from the same speciesDance Language or communication nonchemical communication used by eusocial beesDance communication observationsAristotle witnessed returning foragers being attracted to asweet apple he was eatingReverent Ernst Spitzer observed that returning foragers twirled as if with joy Maurice Maeterlinck and Karl Ritter von Frisch are both Nobel Prize winners involved with the explanation of what the method of communication is and what the twirling meant Dances communicated information about the location of food sources through a series of body movements Round Dance Performed when a food source is close to the hive Involves running around in narrow circles on the comb changing direction every few circuits Quality of food is indicated by vigour or liveliness of the dance and odours carried by the bee from the food sourceGenerally when distance of food is less than 20mWaggle DanceCommunication about the distance direction and quality of food resourcesUsed once the source of forage is farther than 80100m awayDance tempo indicates distance fast temposhort distance and close food sourceDistance is also interpreted by the number of time a bee waggles their abdomen more waggleslong distance far food sourceIndication of direction for open nest honeybees Apis dorsataA florae Orientation of the straight run with respect to position of the sun indicates direction Example if food is directly away from the sun the bee dances the straight run with its head facing directly away from the sun if food is directly to the right with respect to the sun the bee dances the straight run with its head facing directly to the rightIndication of direction for cavitynesting honeybees Apis MelliferaApis cerana direction to the location of forages is indicated by angular deviations during
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