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Community Interaction

Explore the diverse ways in which species interact within a community, including competition for resources, predator-prey relationships, and symbiotic partnerships. Learn about the principles of competitive exclusion and the different types of symbiosis, such as mutualism, commensalism, and parasitism.

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Community Interaction

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  1. Community Interaction

  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

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