Lecture_18_competition9Mar2011[1]

Lecture_18_competition9Mar2011[1] -...

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Unformatted text preview: http://sprott.physics.wisc.edu/images/ Chapter 13 Chapter 13 Competition Competition Name these interactions Interaction Species 1 Species 2 0 0- -- 0 + - + 0 + + Memorize these interactions Interaction Species 1 Species 2 Neutralism 0 0 Competition - - Amensalism - 0 Predation, Herbivory, + - Parasitism, Pathogens Commensalism + 0 Mutualism + + Competition = the interaction that occurs when organisms of the same or different species use a common resource that is in short supply Assumes RESOURCE LIMITATION In competition, both populations/species have reduced fitness because of the interaction A.Types of Competition 1. Who? a. Intra specific competition between members of the ____ species b. Inter specific competition between members of _________ species A.Types of Competition 1. Who? a. Intra specific competition between members of the same species b. Inter specific competition between members of different species Which of these forms of competition do You expect to be most intense? Why? Members of the same species share exactly the same resource requirements 2. How? a. Interference organisms compete for the same resources with direct physical contact b. Resource (aka exploitative) organisms compete indirectly for the same resources without direct physical contact Some examples 1.1....
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Lecture_18_competition9Mar2011[1] -...

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