1. UNIT 3 ECOLOGY Introduction to Biomes Intro to Ecology Video Backyard Ecology Project – Due November 13 th Crash Course: Ecology HW: Chapter 52 Notes due Monday

2. CHAPTER 52 An Introduction to Ecology and the Biosphere

3. Warm-Up  Please read “The Next Frontier” and be ready to discuss the article. http://well.blogs.nytimes.com/2015/02/23/aller gy-risk-may-be-tied-to-how-you-wash-your- dishes/

4. You Must Know  The role of abiotic factors in the formation of biomes.  Features of freshwater and marine biomes.  Major terrestrial biomes and their characteristics. Please refer to learning objectives and essential knowledge handout.

5. Ecology: the scientific study of the interactions between organisms and the environment  The ecological study of species involves biotic and abiotic influences. Ex: Temperature and nutrients availability can affect terrestrial plants, crop growth - This will change the animals that inhabit that area Ex: Oxygen availability, temperature and salinity can affect the aquatic zone where you would find different fish

6. Biogeography Biogeography: geographic distribution of species  Factors:  Dispersal – movement away from area of origin  Behavior – habitat selection  Biotic factors – other species, food resources, competition, pollinators, predators  Abiotic factors – temp, water, oxygen, salinity, sunlight, rocks & soil Very sensitive to precipitation and temperature patterns.

7. What are some human activities that could alter the abiotic factors of this ecosystem?

8. Heirarchy  Organisms  Population: group of individuals of same species living in a particular geographic area  Community: group of populations of different species in an area  Ecosystem: community of organisms + physical factors  Landscape: mosaic of connected ecosystems  Biosphere: global ecosystem

10. Climate: long-term prevailing weather conditions in a particular area  Climate = temperature + precipitation + sunlight + wind  Macroclimate vs. microclimate:  Macro: work at seasonal, regional or local level  Micro: small-scale environmental variation (eg. under a log)

11. Factors that Affect Climate Patterns: Sunlight intensity and Seasons Latitude – Changes angle of sunlight Tilt of Earth’s Axis Distance/Position relative to the sun

12. Seasonal Turnover in Lakes  As temperature drops, water temperature cools and sinks (@4C)  Fall turnover renews oxygen and nutrients to the bottom layer of the lake

13. Factors that Affect Climate Patterns: Ocean Currents What unique property of water?

14. Which side of the canyon has more plants? Why? Black Canyon of the Gunnison River

15. Factors that Affect Climate Patterns: Mountains (altitude) affect rainfall

16. Factors that Affect Climate Patterns: Air Circulation & Precipitation Patterns

17. Climate and elevation determine biomes Figure 34.12 Figure 34.7C

18. Biomes: major types of ecosystems that occupy very broad geographic regions

19. Climograph: plot of temperature & precipitation in a particular region

20. Tropical Forest

21. Desert

22. Savanna

23. Chaparral

24. Temperate Grassland

25. Northern Coniferous Forest

26. Temperate Broadleaf Forest

27. Tundra

28. Disruptions to Terrestrial Biomes  Natural: Storm, Fire, Flood  Human Activity

29. Aquatic Biomes  Water and Oxygen

30. Lakes

31. Wetlands

32. Streams & Rivers

33. Estuaries

34. Intertidal Zones

35. Oceanic Pelagic Zone (Open Water)

36. Coral Reefs

37. Marine Benthic Zone

38. Closure Questions  1. Give one example of a marine biome and one example of a freshwater biome.  2. List the 2 most important abiotic factors that influence where people live.  3. A group of populations of different species in the area.  4. A community of organisms in an area and the physical factors with which those organisms interact. HW: Bring Textbook Tomorrow!! HW: Ch 53 Vocabulary HW: Bring Textbook Tomorrow!! HW: Ch 53 Vocabulary

39. Assignment  Synthesis Questions Practice Worksheet  Tonight: Complete Ch 53 Vocabulary, Bozeman Podcasts on http://www.bozemanscience.com/050- populations/http://www.bozemanscience.com/050- populations/  BRING YOUR TEXTBOOK TOMORROW!