To be successful today 1 Pick up graded

To be successful today… 1) Pick up graded work (2) 2) Pick up Project Peer Evaluations 3) Turn in STAAR Packet 4) Turn in Dissection Coloring Sheet BYOD Color of the day is away in backpacks Phones are in put

To be successful today… 1) Pick up graded work (1) 2) Pick up Project Peer Evalutions 3) Turn in STAAR Packet 4) Clarity Survey BYOD Color of the day is away in backpacks Phones are in put

Monday 5/1 Students NOT taking Algebra I EOC will … • 2 nd ~ Report to RI 247 • 3 rd ~ Report to RI 247 • 5 th ~ Report to RI 247 • 6 th ~ Report to OR 229

To be successful today… 1) Turn in STAAR Packet 2) Turn in STAAR Review Session Passport w/summaries 3) Pull out biology notebook 4) Get glue & scissors BYOD Color of the day is away in backpacks Phones are in put

Add to TOC & Glue in Pages • • • #93 Succession Foldable #94 Ecology Booklet #95 Biomes Foldable #96 Biomes & Adaptations WS #97 Ecology Review Stations #98 Ecology Review Sheet

Monday 5/1 Students NOT taking Algebra I EOC will … • 2 nd ~ Report to RI 247 • 3 rd ~ Report to RI 247 • 5 th ~ Report to RI 247 • 6 th ~ Report to OR 229

Warm-Up Wed 4/12 A 1) Identify the graphs above as 1 of the 4 population growth curves. Explain. 2) Which 2 of the 4 population growth curves are healthy for the species and for the environment. EXPLAIN. B

Add to TOC & glue in pages • • #86 #87 Operation Cat Drop #88 NOTES: Population Ecology #89 Raccoon Lab #90 NOTES: Nutrient Cycles #91 Edu. Smart: Nutrient Cycles #92 NOTES: Ecological Succession

Warm-Up 4/13 1) List the stages of primary succession. 2) List the stages of secondary succession. 3) What is the BIGGEST difference between the two types of succession? 4) Does the image above show primary or secondary succession? EXPLAIN.

Factors that Shape Ecosytems: Ecological Succession Video Edited from science-class. net

Ecological Sucession • The process where plants & animals of a particular area are replaced by more complex species over time

Primary Succession • occurs in areas where no ecosystem or biological activity has existed previously (without any soil) – Examples: – Volcanic eruption areas – Formation of new lakes/rivers/islands

A very lengthy process

Stage 1 – Pioneer species • Starts with the arrival of living organisms that do not need soil to survive • Called PIONEER SPECIES (EX: Lichens)

Stage 1 continued • Lichen and weathering of rocks create soil.

Stage 2 – Mosses & Ferns • Simple plants like mosses and ferns can grow in the new soil http: //www. uncw. edu http: //uisstc. georgetow n. edu

Stage 3 - Grasses • The simple plants die as the soil thickens • Grasses and Wildflowers take over http: //www. cwrl. utexas. edu

Stage 4 - Shrubs & small softwood trees • Next come bushes and small softwood trees, like pines & aspens http: //www. rowan. edu

Stage 5 – Large hardwood trees • Larger hardwood trees dominate the area, like oaks, maple, elm http: //p 2 -raw. greenpeace. org

Secondary Succession • pattern of change in areas where biological activity has previously existed; already has soil and once had organisms • IS Faster and only stages 2 -5 • Examples: forest fires, floods, deforestation

Climax Communities • Successful high density ecosystem of long-lived plant species. • Lasts a long time • Not always the end result because ongoing struggle for resources

http: //www. ux 1. eiu. edu

http: //www. agen. ufl. edu

Summary Video • Primary http: //www. youtube. com/watch? v=v. NHnw Ha. Sol. A • Secondary http: //www. youtube. com/watch? v=CQ 2 Xl 6 Zqz. RI • http: //www. pbs. org/americanfieldguide//tea chers/forests_unit. html#2