bio_ecology

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Warm Up: Food Chain / Web : 

Warm Up: Food Chain / Web Draw a food chain using organisms from the ocean. Draw a food web using organisms from the desert.

Fieldwork Opportunities : 

Fieldwork Opportunities Saturday 8:30 – 1 Sun Valley Recreational Center Call to reserve a spot 818 771 0236 Sunday 12 – 3 School Clean Up Meet in Quad and sign in with either Erica Kirk or Anh Nguyen

Notes #10: : 

Notes #10: Ecology

I. Ecology : 

I. Ecology A. Ecology: Study of interactions within ecosystems B. Ecosystem: Interaction between all biotic and abiotic components of the environment C. Closed System: No matter enters or leaves only energy can be exchanged

II. Biotic Components : 

II. Biotic Components Biotic: living (organisms) trophic levels: “eating” levels 1) producer / autotroph: makes own food through photosynthesis Using CO2 and light 2) consumers / heterotrophs: need to eat food to survive. a) primary / first order consumer: herbivore. Eats producers. b) secondary/ second order (carnivores, omnivores, decomposers, scavengers)

Slide 6: 

I will provide: Water Potting soil Gravel Tape to seal your bottle Growing station You must bring:

Who’s bringing what? : 

Who’s bringing what? WE’RE PUTTING TOGETHER OUR ECOSYSTEMS ON MONDAY! I will provide: Water Potting soil Gravel Tape to seal your bottle Growing station You must bring: TWO 2 liter bottles Animal (s) Plant(s) Anything else you need for your experiment

III. Laws of Energy / Thermodynamics : 

III. Laws of Energy / Thermodynamics Energy: Capacity to do work (move something) A) First Law: energy can’t be created nor destroyed, but can be transferred / transformed B) Second Law: entropy (disorder) increases when you transfer / transform energy

IV. Energy Flow (Continued) : 

IV. Energy Flow (Continued) Pyramid of Productivity (energy flow) Most energy lost through feces, life processes, heat to env’t 1 3rd order consumer 10 2nd order consumer 100 1st order 1000 producers

V. TROPHIC RELATIONSHIPS : 

V. TROPHIC RELATIONSHIPS Feeding relationships Food Chain Shows flow of energy from one organism to the next Producers herbivores carnivore

Slide 11: 

Food Web Shows many interactions / food chains

VI. Abiotic Factors : 

VI. Abiotic Factors Abiotic Factors: non living Climate: temperature, sunlight, wind Soil, rocks Natural disasters (drought, earthquakes) Air, Water, Nutrients etc..

Homework #8: : 

Homework #8: Outline p. 767 – 779 MUST KNOW TERMS FOR TOMORROW’S ACTIVITY!

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