80 likes | 177 Views
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.
E N D
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 yesterday (the written) presentations will begin Monday.
Species interactions & Community • Zebra Mussels – good or bad? Look at page. 77 • What is the issue? Are they completely bad or do they do offer benefits? If so what?
Species interactions & Community • Competition – Inter Competition & Intra Competition • Inter Competition • Intra Competition • Competitive exclusion • Resource partitioning – woodpeckers • Predator versus Prey
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 is harmed
Species interactions & Community • Amensalism– one harmed while the other is unaffected
Species interactions & Community • Turf cutting – Pines trees drop needles which changes the PH and other trees cannot groiw there. This is called: • Allelopathy – plants that release chemicals to protect themselves or their area
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,..