UNI101Y1 Study Guide - Impatiens, Limiting Factor, Herbaceous Plant

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Bio120h lisa zhao 2011 | page 2. Charles darwin compet. should be most intense b/w closely related species. Distantly related org. also use same resources. Nnoonnrreenneewwaabbllee rreessoouurrcceess: resources that are not regenerated. Ex. space (only replenished when consumer leaves) Ex. birth of prey provides continual supply of food for predators. Some renewable resources originate beyond the influence of consumers ex. sunlight. Thus, consumers reduce its immediate availability but not their supply. Supply of prey, plants, and hosts is constantly regenerated. By reducing pop. of resources, they reduce rate of renewal. Regenerated w/in ecosystem linking indirectly to their consumers. Through food chain links or abiotic processes. Lliieebbiigg""ss llaaww ooff tthhee mmiinniimmuumm: the principle that the growth of a pop. is limited by the resource whose supply is most scarce relative to demand (the lliimmiittiinngg rreessoouurrccee)