Relationships in Ecosystems

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Presentation transcript:

Relationships in Ecosystems

Populations All of the same species in an ecosystem www.intrasystems.gr www.nkf-mt.org.uk

Competition All living things compete for Food Space Competition limits population growth www.opim.wharton.upenn.edu

Limiting Factors Anything that restricts or controls the number of individuals in a population www.bahamascommerce.com

Carrying Capacity The largest number of individuals of one species an ecosystem can support www.wwt.org.uk

Symbiosis Any close relationship between species en.wikipedia.org

Mutualism A relationship in which both species benefit Pollination www.biology.clc.uc.edu Cleaner fish Lichens: algae + fungus www.orn.mpg.de www4.tpgi.com.au

Commensalism A relationship in which one species benefits and the other is neither helped nor harmed Shark & remora Barnacles on whale www.community.webshots.com www.cbu.edu

Parasitism A relationship in which one organisms benefits and the other is harmed Mistletoe Tick www.wcosf.org www.oznet.ksu.edu

Predator - Prey Predators are consumers that capture and eat other consumers, called prey http://www.uga.edu

Cooperation Organisms working together toward a common end or purpose http://special.newsroom.msu.edu http://forger.ca/