Mechel Golenberke: My First Website

Chapter 5 How Ecosystems Work

Biology Junction Ecology

DAY 1

Crash Course Biology: Ecology (10:26)

Big Bio Colring Workbook 11.1 Ecological Communities & 11.2 Ecosystems

 

Hippocampus: Energy Flow & the Water Cycle (Feeding Relationships, Energy Flow & the Water Cycle)

 

Chapter 5 How Ecosystems WorkChapter 5 Vocabulary

Chapter 5 Concept Map

chapter 5 notes.docxGolenberke Chapter 5 Notes 

DAY 2

You Tube/Make Me Genius: Food Chains ,Food Webs,Energy Pyramid in Ecosystems (5:11)

Section 5.1 Energy Flow in Ecosystems

Objectives

1. Describe how energy is transferred from the sun to producers and then to consumers.

2. Describe one way in which consumers depend on producers.

3. List two types of consumers.

4. Explain how energy transfer in a food web is more complex than energy transfer in a food chain.

5. Explain why an energy pyramid is a representation of trophic levels.

5.1 Vocabulary

photosynthesis - the process when a plant uses sunlight to make sugar molecules

producer - an organism that makes its own food through photosynthesis or chemical sources

consumer - an organism that gets its energy by eating producers or other consumers

decomposer - an organism that gets its food by breaking down dead organisms

cellular respiration -  the process of breaking down food to yield energy

food chain - a sequence in which energy is transferred from one organism to the next as each organism eats another organism

food web -  a diagram shows the many different feeding relationships between organisms in an ecosystem

trophic level - each step through which energy is transferred in a food chain

Brightstorm: Ecological Pyramids (4:39)

Ecological pyramids are diagrams which show the abundance of organisms at each trophic level along the food chain of an ecosystem. The shapes of ecological pyramids are somewhat triangular in shape because there are fewer consumers at each ascending tropic level.

Brightstorm: Food Chain (3:05)

A food chain is a diagram which depicts the series of organisms which eat each other, starting with a producer (generally a plant) and ending with the apex species. It is useful to think of food chains using the rule of 10% which says that generally each successive species in a food chain receives about 10% of the energy of the preceding species. Food chains are linear, unlike food webs which are more complex.

Brightstorm: Food Web (3:20)

A food web is a diagram that shows all the pathways of energy flow in a community. The food web is similar to a food chain in that it depicts organisms which eat each other. However, a food web is more complex as it shows how herbivores, carnivores, omnivores, decomposers and detritivores interact with one another.

5.1 Student Textbook

5.1 mp3 (11:44)

5.1 PowerPoint ch05_sec1 revised.ppt

5.1 Active Reading (pages 23 & 24) (pdf pages 34 & 35)

Self-Check Quiz Self-Check Quiz Section 1: Energy Flow in Ecosystems

**Discovery Video: Food Chains & Webs (21:43)**

DAY 3

Worksheet: Food Chains and Webs rev MG 2012.pdf

Games: Foodweb Kerplunk & Who Dun It: Food Webs & Food Chain Game

DAY 4

Activity 16 Food Chains: instructions, sample food chains, student questions, cards, arrows for food chains

DAY

E&E Activity 10: Galapagos Marine Foor Web

DAY 5

Big Bio Coloring Workbook: 11.6 The Energy Pyramids, 11.7 Food Chains & 11.8 A Food Web

 

DAY 6

The Barn Owl – An Introduciton to Owl Pellet Labs (19:42) & You Tube: What is a Barn Owl Pellet? (3:56)

Hoo Eats Who Student Instructions Sheet of Animalssample web

DAY 7 & 8

Lab: Dissecting Owl Pellets – textbook page 148 (170 of pdf)

owl pellet bone key diagrams & resources

Virtual Owl Pellet Dissection – uses flash so youhave to go through vmware!

**If extra time…Discovery Food Chain Web Video (20:43)

DAY 9 – finish owl pellet lab, then:

Section 5.2 The Cycling of Materials

Objectives

1. List the three stages of the carbon cycle.

2. Describe where fossil fuels are located.

3. Identify one way that humans are affecting the carbon cycle.

4. List the three stages of the nitrogen cycle.

5. Describe the role that nitrogen-fixing bacteria play in the nitrogen cycle.

6. Explain how the excess use of fertilizer can affect the nitrogen and phosphorus cycles.

5.2 Vocabulary

carbon cycle - a process by which carbon is cycled between the atmosphere, land, water, and organisms

nitrogen- fixing bacteria - organism that can fix atmospheric nitrogen into chemical compounds

nitrogen cycle - a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms

phosphorus cycle - the movement of phosphorus from the environment to organisms and then back to the environment

Hippocampus: Chemical Element Cycles (Carbon, Nitrogen & Phosphous)

 

Brightstorm: Carbon Cycle (2:40)

The carbon cycle is a cycle where carbon is exchanged throughout the Earth’s atmosphere, the terrestrial biosphere, the oceans and sediments. Carbon in living organisms turns to soil when they die, entering the sediment. Then, it might return to the biosphere in the form of a plant growing out of that soil which is eaten by an animal. That animal emits carbon in the form of carbon dioxide as a product of respiration.

 

Brightstorm: Phosphorus Cycle (1:56)

The phosphorous cycle follows the movement of phosphorous through the biosphere. Phosphorous is found in many forms, both organic and inorganic, but is most commonly found in the phosphate ion. Phosphorous is essential for both plants and animals. In biotic processes, plants remove phosphorous from the soil, animals eat plants and so on. In abiotic processes, phosphate is released by rocks due to weathering, then is deposited in the soil or water through leaching or runoff.

 

Brightstorm: Nitrogen Cycle (3:17)

The nitrogen cycle follows the movement of nitrogen in its different forms. Nitrogenous gas makes up 80% of the atmosphere and most nitrogen enters into the ecosystem via nitrogen-fixing bacteria, but many organisms still struggle with nitrogen availability because they cannot use it in that form. The process of making nitrogen accessible is called nitrogen fixation. Many forms of bacteria are capable of this. Many of these bacteria are found in the soil but some species have a symbiotic relationship with microbes which are capable of fixation. Other key processes include nitrification, denitrification, and ammonification

5.2 Student Textbook

5.2 mp3 (9:26)

5.2 PowerPoint ch05_sec2 revised.ppt

5.2 Active Reading (pages 25 & 26) (pdf pages 36 & 37)

Self-Check Quiz Section 2: The Cycling of Materials  

Other Animations: You Tube/Make Me Genius: Carbon Cycle (4:00) Nitrogen Cycle (3:56)

DAY 10

Biology Coloring Book: 11-10 The Carbon Cycle, 11-11 The Nitrogen Cycle, 11-12 The Phosphorus Cycle

Biology Junction Version of BCWB Cycle Pages

DAY 11

Biogechemical Cycles Game or Carbon Cycle Activity & carbon cards

**chapter 5 vocabulary quiz tomorrow!

DAY 12

Chapter 5 Vocabulary Quiz

Biogeochemical Cycling by bozemansbiology (10:07)

want more info? Discovering Biogechemical Cycles (Dummies.com)

 

Section 5.3 How Ecosystems Change

Objectives

1. List two examples of ecological succession.

2. Explain how a pioneer species contributes to ecological succession.

3. Explain what happens during old-field succession.

4. Describe how lichens contribute to primary succession.

5.3 Vocabulary

ecological succession - a gradual process of change and replacement of some or all of the species in a community

primary succession - the type of succession that occurs on a surface where no ecosystem existed before

secondary succession - the type of succession that occurs on a surface where an ecosystem has previously existed

pioneer species - the first organisms to colonize any newly available and begin the process of ecological succession

climax community - a final and stable community

5.3 Student Textbook

5.3 mp3 (7:45)

5.3 PowerPoint ch05_sec3 revised.ppt

5.3 Active Reading (pages 27 & 28) (pdf pages 38 & 39)

Self-Check Quiz Section 3: How Ecosystems Change

Ecological Succession Activity

Mount St. Helen’s Succession Activity (Student Page 1 Student Page 2)

Another Ecological Succession Activity using QR reader app

Succession flash interactiveworksheet to go with this:

National Geographic Coral Reef Succession

Chapter 5 Critical Thinking (231-235)individual chapter 5 critical thinking pages

Chapter 5 Map Skills (pdf page 339)individual chapter 5 map skills page

Chapter 5 Concept Review (pages 9 & 10)(pdf pages 13 & 14)individual chapter 5 concept review pages

Chapter 5 Word Search

Chapter 5 Standard Test Prep

Enrichment and Extension 

Quick Lab: How Can You Model Succession?

Create a small ecosystem, and measure how organisms modify their environment.

Historical Note: Fixing the Nitrogen Problem

If nitrogen makes up 78 percent of the atmosphere, why were nineteenth century farmers fearful of a nitrogen shortage? Click here to find out how chemists fixed the “nitrogen problem.”

Research Note: Lichens as Environmental Watchdogs

Read this article to find out why lichens are good indicators of air pollution.

Society: Fires in Yellowstone

Firefighters have allowed fires to burn freely in our national parks. What would you do? Read this article and decide whether you think the firefighters behaved responsibly.

 

Chapter 5 Labs

Observation Labs

Explaining the Carbon Cycle in Fermentation

Consumer Labs

Calculating Land Area

 

;