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Do Now: Fun Friday!

Do Now: Fun Friday!. Homework & Objective. Objective: Examine the impact of species interaction with one another. Homework – Read the Owl Pellet lab write up for Monday. Review the chapter. Plan for a test on chapters 1,2,3,4 on Tuesday (D Period), Wednesday for E Period.

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Do Now: Fun Friday!

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  1. Do Now: Fun Friday!

  2. Homework & Objective • Objective: Examine the impact of species interaction with one another. • Homework – • Read the Owl Pellet lab write up for Monday. • Review the chapter. Plan for a test on chapters 1,2,3,4 on Tuesday (D Period), Wednesday for E Period. • Research Project – Were due Thursday (the written portion) presentations will begin Monday.

  3. Species interactions & Community • Competition – Inter Competition & Intra Competition • Inter Competition • Intra Competition • Competitive exclusion • Resource partitioning – woodpeckers • Predator versus Prey

  4. Species interactions & Community Symbiosis – what is it? Are they always good? • Mutualism – each benefits • Commensalism • One benefit and the other is unaffected (Spanish Moss) • Parasite - one benefits, the other (most often the host) is harmed

  5. Species interactions & Community • Amensalism– one harmed while the other is unaffected

  6. Species interactions & Community • Turf cutting – Pines trees drop needles which changes the PH and other trees cannot grow there. This is a form of: • Allelopathy – plants that release chemicals to protect themselves or their area

  7. Species interactions & Community • Trophic Levels – p. 84 & 85 • Each rise on the level is a loss of energy (through respiration), only a small amount is transferred • Each level is just 10% of energy from the previous level • For every hawk there must be more rodents to eat and even more bugs,..

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