Coevolution + Mutualism
Coevolution + Mutualism BIO 301-01
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This 2 page Class Notes was uploaded by carr34 Notetaker on Sunday October 16, 2016. The Class Notes belongs to BIO 301-01 at University of North Carolina - Greensboro taught by Robert H. Stavn in Fall 2016. Since its upload, it has received 6 views. For similar materials see Principles of Ecology in Biology at University of North Carolina - Greensboro.
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Date Created: 10/16/16
Coevolution + Mutualism Increase species diversity [divert + share resources] Coevolution compound existing species diversity Mutualism coevolution Bees as pollinators [plants torn bees into resource] Attractant nectar (dividing calories) Optimalize Desert willow [flower] nectar pool; bees drain the nectar pool of flowers until no more in the morning; bees comes back in afternoon to go for nectar groove which holds nector Reproduction pollen and seeds Pollination signal and reward Flavoriod + terpenes insects [ flowers pollinated by insects] No odor birds (red) [flowers pollinated by birds] Coadaptation other plants [divide up reproductive season] Phenology study of seasonal changes of reproduction in plants and animals [time resource] Seed disparson fruits flowers seeds [taxazallaloid] Optimization [optimate return] No community totally optimal [have to be trade offs] Invasions possible [species not in community] [not coevolution] Pheromones diversity + fragrance Alleoenemices Social cues Competition allelopathy [ defensive chemicals] Secondary compounds [no direct chemical (use) to plants] Tomatoes and Walnut Tree Cannot grow tomatoes under walnut tree because of the chemical it produces that makes it impossible for a plant to grow underneath the tree. Qualitative chemical defense [autotoxic] Low concentration ; toxic alkaloids Quantitative chemical defense [bad taste] Tannius; phytolith (silica); lignin Optimal Defense Theory [secondary compound] Less defended organisms higher fitness [less energy to fight off compound; more energy to produce offspring] Clover non toxic reproduction higher rate Allocation to high risk tissues Tannius - leaves → seeds Reduce defense enemies absent Forestry Ant Guard Symbiosis [africa 20kg colony] Driver ants goes on rampage [costa rica] Driver ants once a year Attack same building and remove verman in building Behavior simple Follow triail; recognize own species [Acacia] (tropics) House + feed ants
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