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Ecology Notes Created by Whims, D.

SYMBIOSIS "LIVING TOGETHER". Ecology Notes Created by Whims, D. Activity. What is Symbiosis????. Literal definition: the act of living together What it means: Two organisms that live together Temporarily or for a longer time

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Ecology Notes Created by Whims, D.

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  1. SYMBIOSIS "LIVING TOGETHER" Ecology Notes Created by Whims, D. Activity

  2. What is Symbiosis???? Literal definition:the act of living together What it means: • Two organisms that live together • Temporarily or for a longer time • At least one of the organisms benefits from the relationship

  3. WHAT YOU ALREADY KNOW ABOUT THESE THREE TYPES OF SYMBIOTIC RELATIONSHIPS! (CLICK ON EACH PICTURE TO LEARN MORE!) 1. COMMENSALISM 2. MUTUALISM 3. PARASITISM Symbiosis

  4. COMMENSALISM • One species benefits and the other species is neither harmed nor benefited. • AN EXAMPLE: In a region of Siberia in Russia a peregrine falcon and red-breasted goose have a commensal relationship. During the nesting season the falcon protects the geese from predators. The geese benefit, while the falcon is neither benefited or harmed.

  5. Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects Commensalism: one benefits, one is unaffected!! COMMENSALISM

  6. MUTUALISM • Both species benefit! • AN EXAMPLE: Mutualism is illustrated between a type of ant and a species of acacia tree living in the subtropics. The ant protects the tree by attacking any herbivore that tries to feed on it. The ants also kill any plant that begins to grow too close to the acacia. The tree provides nectar and a home for the ants.

  7. Mutualism • Moray Eel with Cleaner fish • Moray Eel gets a clean mouth. • Cleaner fish gets a meal. MUTUALISM BOTH BENEFIT!!

  8. PARASITISM • A symbiotic relationship in which one organism benefits at the others expense! • AN EXAMPLE: Tapeworms and roundworms, live in the intestines of dogs, cats, and other vertebrates. • Why would it be disadvantageous for a parasite to kill its host?

  9. Taenia worm in human eye Worm infects human blood stream and human may go blind. Parasitism: one benefits, one is harmed!! PARASITISM

  10. When living separately, approximately how long after the extinction of Organism 2 did it take Organism 1 to reach its highest point?

  11. After analyzing the graph, the association between the organisms is either commensalism, parasitism, or mutualism? Explain Why?

  12. Predation – one species feeds on another  enhancesfitness of predator but reduces fitness of prey

  13. Types of Predators:::: • Carnivores – kill the prey during attack • Herbivores–remove parts of many prey, • rarely lethal. • Parasites – consume parts of one or few prey, • rarely lethal.

  14. Invasive Species • They adversely affect the habitats they INVADE. Organisms reproduce because new habitat lacks parasites and predators that control their population “back home”

  15. ANSWERS FOR TEACHER! • A parasite cannot survive unless it is living on a host If the host dies then the parasite would not be able to live. • The first graph- It takes two weeks for Organism 1 to reach its highest point after the extinction of Organism 2. • The second graph- Parasitism is represented, because Organism 1 thrived after the extinction of Organism 2, which meant it couldn’t be mutualism or commensalism because the population would decrease due to the fact they rely on one another to thrive.

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