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Community Interactions

Community Interactions. Community Interactions. Community: Many species interacting in the same environment Three types of interactions: Competition Predation Symbiosis. Competition. Defined : competing for resources water, nutrients, light, food

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Community Interactions

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  1. Community Interactions

  2. Community Interactions • Community: Many species interacting in the same environment • Three types of interactions: • Competition • Predation • Symbiosis

  3. Competition • Defined: competing for resources • water, nutrients, light, food • occurs due to a limited number of resources • Competitive exclusion principle: no two species can occupy the same niche in the same habitat at the same time

  4. Predation • Defined: when an organism captures and feeds on another organism. • Predator- hunter • Prey- hunted

  5. Symbiosis • Symbiosis- any relationship where two species live closely together. • Three types • Mutualism • Commensalism • Parasitism

  6. Mutualism • Mutualism: both species benefit from a relationship. • Ex: Lichens (fungus and Algae) • Ex: Clown fish and anemones • Ex: Cleaner birds and crocodiles

  7. Commensalism • Commensalism – One member of a symbiotic relationship benefits and the other is neither helped or harmed • Ex: Cattle and Birds • Birds eat insects stirred up by the cattle • Ex: Barnacles and whales • Barnacles grow on whale

  8. Parasitism • Parasitism- One creature benefits and one creature is harmed • Ex: Tapeworm feeds in a humans intestines absorbing his/her nutrients

  9. Kobe Kuiz • What is a community? • Name the 3 types if community interactions. • When do organisms usually compete? • How do predators and prey interact? • Name the 3 types of symbiosis. • How does mutualism, commensalism, and parasitism differ?

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