Lecture 4 - Psych 100, Prof. Mark Hauber How to write a...

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Unformatted text preview: Psych 100, Prof. Mark Hauber How to write a successful synopsis? y p Read the Abstract, then read the paper carefully of the CUCKOO PDF article (posted on Blackboard). Look through the Figures and read the Figure Legends. Read the Title and Abstract again to see if the paper delivers its promise. To write the synopsis: 1 page printed max, single or double spaced, 12 font. Please put your full name, course number, and your iClicker ID # on the top of the page. ring the synopsis to class on Monday Sept 19 NO LATE ASSIGNMENTS OR Bring the synopsis to class on Monday, Sept. 19. NO LATE ASSIGNMENTS OR EMAILED ASSIGNMENTS WILL BE ACCEPTED you CAN bring the synopsis to class BEFORE the deadline. http://www.youtube.com/watch?v=dAU5MTXmAPY Host-parasite co-evolutionary interactions: forces of natural selection Fitness value: 0!? Selection on parasite to fit in: mimicry of eggs In Cuculus cuckoos but not in Molothrus cowbirds Great reed warblers and common cuckoos: ear perfect mimicry near perfect mimicry reat reed warbler- uckoos lay highly Great reed warbler cuckoos lay highly mimetic eggs, with intermediate rejection rates of natural parasitism by hosts (34%). Full-spectrum reflectance of eggshells What explains diversity of host sponses responses at the cognitive level? ptimal onspecific cceptance threshold theory Optimal conspecific acceptance threshold theory (Reeve 1989 ): provides a fitness-based integrative explanation for variability of discrimination decisions by proposing that cognitive mechanisms evaluate host-parasite trait dissimilarity within a selection-sensitive framework. Experimental tests of optimal threshold theory: creased risk of parasitism vs. rejection decisions increased risk of parasitism vs. rejection decisions rediction: Prediction: Experience with experimental parasitism shifts the acceptance thresholds to more restrictive limits Manipulating host egg traits: Control Speckled All brown 1 Experimental test of optimal threshold theory: creased risk of parasitism vs. rejection decisions 1.0 increased risk of parasitism vs. rejection decisions 0.8 ate 0.4 0.6 Rejection Ra 0.2 13 17 14 sample sizes (nests) 0.0 0Control 1 2 3 Experimental test of optimal threshold theory: creased risk of parasitism vs. rejection decisions 1.0 increased risk of parasitism vs. rejection decisions 0.8 ate 0.4 0.6 Rejection Ra 0.2 13 17 14 12 0.0 0Control 1 2 3 Experimental test of optimal threshold theory: creased risk of parasitism vs. rejection decisions 1.0 increased risk of parasitism vs. rejection decisions 0.8 ate 0.4 0.6 Rejection Ra 0.2 13 17 14 12 0.0 0Control 1 2 3 Hauber et al. 2006 Psych 100, Prof. Mark Hauber How to write a successful synopsis? y p Read the Abstract, then read the paper carefully of the CUCKOO PDF article (posted on Blackboard)....
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Lecture 4 - Psych 100, Prof. Mark Hauber How to write a...

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