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Species Interactions

Species Interactions. Review SYMBIOSIS And TYPES of SYMBIOSIS. Ecological Relationships. Oppositional relationship – opposing each other Predator/Prey Competition Symbiosis – a close relationship between 2 different species Mutualism Commensalism Parasitism.

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Species Interactions

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  1. Species Interactions Review SYMBIOSIS And TYPES of SYMBIOSIS

  2. Ecological Relationships • Oppositional relationship – opposing each other • Predator/Prey • Competition • Symbiosis – a close relationship between 2 different species • Mutualism • Commensalism • Parasitism

  3. Species interaction: Opposition • Predation 1 – predator / prey; one eats another Video Eagle • Competition – Two species fight over a single resource, one loses

  4. Predation

  5. Competition

  6. Interspecific Interaction • Symbiosis is a close relationship between two unrelated organisms • Parasitism • Mutualism • Commensalism

  7. Symbiotic Relationships 3 Types of symbiosis: 1. Commensalism 2. Parasitism 3. Mutualism Symbiosis- two speciesliving together

  8. Videos on Symbiosis • Rhino / White bird • Explain the relationship

  9. Symbiotic Relationships Mutualism- beneficial to both species Ex. cleaning birds and cleaner shrimp

  10. Symbiotic Relationships Mutualism- beneficial to both species Ex. lichen

  11. Lichen • Mutualism = Fungi and bacteria – important for ecological succession. Eat rocks. • Pioneer Species

  12. Symbiotic Relationships Commensalism- one species benefits and the other is neither harmed nor helped Ex. orchids on a tree Epiphytes: A plant, such as a tropical orchid or a bromeliad, that grows on another plant upon which it depends for mechanical support but not for nutrients. Also called xerophyte, air plant.

  13. Symbiotic Relationships Commensalism- one species benefits and the other is neither harmed nor helped Ex. polar bears and cyanobacteria

  14. Symbiotic Relationships Parasitism- one species benefits (parasite) and the other is harmed (host) • Parasite-Host relationship

  15. Symbiotic Relationships Parasitism- parasite-host Ex. lampreys, leeches, fleas, ticks, tapeworm

  16. = 1 species

  17. PACKET REVIEW • video

  18. California Sea Otters • KEYSTONE SPECIES – a species critical to the functioning of an ecosystem. • Read page 242

  19. Sea Urchin and Kelp Beds

  20. Ants and acacia tree • Nitrogen fixing bacteria • Protozoa and termite • Algae and sloth • Mistletoe and tree • Spanish moss and tree • Fluke eggs and host snail • Plover and crocodile

  21. Wrasse and parrotfish • Clownfish and anemone • Parasitism • Body invaders • Lamprey • Tick

  22. Review Notes! • Video tomorrow • Lab Tuesday • Review Wednesday • Assessment Thursday • Review assessment friday

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