Week 6 Notes - EEB 100 Discussion 11:04:00 Behavioral Syndrome a suite of behavioral tendencies that correlate across time and contexts(different

Week 6 Notes - EEB 100 Discussion 11:04:00 Behavioral...

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EEB 100 – Discussion27/07/2015 11:04:00Behavioral Syndrome – a suite of behavioral tendencies that correlate across time and contexts (different situations)Behavioral syndromes vs. behavioral plasticityPlasticity – change behavior based on what is there for themSyndromes are constraints on plasticity(A solitary) Anelosimus studiosis can’t catch large prey and be socialtradeoffBehavioral constraints – individual levelBehavioral diversity – group levelTradeoff between selection pressure vs. gene flowBehavior adapting to its different environments
EEB 100 – Lecture 14: Social Behavior27/07/2015 11:04:00Conclusions: M. genalis modelKin selection matters: sociality cannot spread if it reduces within-nest genetic relatednessSociality is most likely to evolve by maternal manipulationCooperation happens between genetic kinHaplodiploid hypothesis for eusocialityBasis for this is that full sisters have a relatedness by .75 which is higher than ones relatedness to one’s own kidMost Hymenoptera species are solitaryA number of diploid species are eusocialTheir evolution of eusociality did not involve haplodiploid mechanisms

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