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Understanding Symbiosis in Predation: Adaptations and Interactions

Learn the types of symbiosis in predation - predator-prey relationships, defense adaptations, and species interactions in nature. Explore predator behaviors, prey defenses, mimicry, and more. Discover plant prey adaptations through physical and chemical defenses, and understand interspecific and intraspecific competition. Dive into concepts like mutualism, commensalism, and species richness. Complete your homework on species interactions and the science behind resource/niche partitioning and competitive exclusion.

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Understanding Symbiosis in Predation: Adaptations and Interactions

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  1. Warm up 3-31: • Using: + = good & - = bad explain which types of symbiosis correspond to: • (+/+) (+/-) (+/0) Notes #18: SPECIES INTERACTIONS Part 2 PP 403-404

  2. PREDATION (+/-) • one species eats another species • predator: eater and prey: eaten • Types: carnivores, herbivores

  3. PREY: SEA URCHINS • cyclic in nature – ↑ in prey leads to ↑ in predators (vice versa) • Adaptations in prey for defense against predators PREDATOR: SEA STARS

  4. RESPONSES TO PREDATION • camouflage: Cryptic coloration disguises an animal so it’s less visible to predators or prey

  5. warning coloration: intended not to camouflage an organism but to make it more noticeable - Bright coloring, scent, or taste to warn potential aggressors

  6. mimicry: physical (or behavioral resemblance) of one species to another 1. natural selection of a second moth species favors moths who look like the bad tasting species (bright colors) 2. color patterns may be similar

  7. moment of truth defenses: action by prey just before death that is unexpected by predator

  8. alluring coloration: animals are colored so a predator's attention is drawn to a non-vital part of the prey's body

  9. Species Interactions • Plant Prey Adaptations -adaptations work towards protecting the plant from being eaten Ex/ Physical Defenses – thorns, spines, sticky hairs and tough leaves Chemical Defense – poisonous, irritating or bad tasting Secondary Compounds – chemicals that are a byproduct of the plants metabolism Ex/ Strychnine, Capsacian & Nicotine

  10. Homework • Turn in Notebook (1 pile) • Turn in Warm-ups (2nd Pile) 3/5/14 - 3/31/14 • Response to Predation • Trifold Vocab: • Interspecific Competition • Intraspecific Competition • Mutualism • Commensalism • Symbiosis • Species Richness • Species Evenness • Primary Species • Pioneer Species

  11. Warm-up 4/1 What is resource/niche partitioning? What is competitive exclusion?

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