Relationships in ecosystems
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Ecosystem relationships include populations of the same species, competition for resources between species, limiting factors that control population sizes, and a carrying capacity that determines how many individuals an ecosystem can support. Symbiotic relationships between species can be mutualistic if both benefit, commensalistic if one benefits and the other is unaffected, or parasitic if one benefits at the expense of the other. Predator-prey interactions involve predators consuming other organisms as prey, while cooperation occurs when organisms work together for common goals.
Relationships in ecosystems
- 2. Populations All of the same species in an ecosystem www.nkf-mt.org.uk www.intrasystems.gr
- 3. Competition All living things compete for Food Space Competition limits population growth www.opim.wharton.upenn.edu
- 4. Limiting Factors Anything that restricts or controls the number of individuals in a population www.bahamascommerce.com
- 5. Carrying Capacity The largest number of individuals of one species an ecosystem can support www.wwt.org.uk
- 6. Symbiosis Any close relationship between species en.wikipedia.org
- 7. Mutualism A relationship in which both species benefit Cleaner fish Pollination Lichens: algae + fungus www.biology.clc.uc.edu www.orn.mpg.de www4.tpgi.com.au
- 8. Commensalism A relationship in which one species benefits and the other is neither helped nor harmed Barnacles on whale Shark & remora www.community.webshots.com www.cbu.edu
- 9. Parasitism A relationship in which one organisms benefits and the other is harmed Tick Mistletoe www.oznet.ksu.edu www.wcosf.org
- 10. Predator - Prey Predators are consumers that capture and eat other consumers, called prey http://www.uga.edu
- 11. Cooperation Organisms working together toward a common end or purpose http://forger.ca/ http://special.newsroom.msu.edu