Relationships in Ecosystems

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

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

Competition
Two or more populations or species sustained by the same resource in a community

Symbiosis
Any close relationship between species
en.wikipedia.org

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

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

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

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://forger.ca/ http://special.newsroom.msu.edu

Relationships in Ecosystems

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Relationships in Ecosystems Presentation Transcript