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This 2 page Study Guide was uploaded by Heidi Jones on Sunday March 20, 2016. The Study Guide belongs to ENTM 21000-001 at Purdue University taught by Linda Mason in Spring 2016. Since its upload, it has received 19 views. For similar materials see Introduction to Insect Behavior in Entomology at Purdue University.
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Date Created: 03/20/16
Allemone Defense compound Concealment: Ex. Ants living within a Anachoresis stem are concealed; defended by virtue of where they live(primary) Aposematism Warning coloration: (primary) advertisement of noxious qualities, Often red/orange/yellow with black. Striking contrast. Automimicry Individuals are protected tovarying degrees but because some tooEx.All monarch caterpillars are protected even if some are not toxic (primary:aposematism) Self-cutting: ex. crane fly leg can break Autotomy off at predetermined line to allow escape Batesian Mimicry Noxious model and palatable mimic NOT the Viceroy because it feeds on willow and is protected by salicylic acid (primary: aposematism) Counter Shading Dark side and light side flattens shape Camouflage: (primary) part of phenotype; worthless Crypsis without behavior of choosing the right background; Therefore the behavior had to be in place before the coloration Threats causing predator intimidation; Deimatic Behavior Ex. flash coloration, startle sounds, eye spots flashed, viper or scorpion pose Disruptive Coloration Banding to break up insect/leg shape Escape Try to get away; fly, jump,etc.(secondary) A number of different species with various degrees of palatability Mullerian Mimicry come toresemble each other through convergent evolution in order toreduce the probability of being the sacrificial educator of the predator.(primary;aposematism) Osmeterium Retractable organ produces fouls smelling butyric acid (secondary defense mech. because not always out) Primary Defense Mechanism A constant or near constant part of the organisms phenotype: in place regardless of whether or not attacked by predator. Reflex Bleeding Exude a liquid that appears to be blood; ex. ladybird beetles, tiger moths. (NOT blister beetles or grasshoppers0 Retaliation going with a fight: attack in response, bite, jab with spines, release chemical defense ex. bombadier beetle Secondary Defense Mechanism Protective features released in response to threat of predation Thanatosis Playing dead; predators want living organisms, they are not detrivores Withdrawal Pull back; ex. beetle larvae withdraws into tunnel (secondary)
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