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PH 22 Ecosystems and Biomes

Mr & Mrs Smiths' Life Science 

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Unit 3 Ecology
Chapter 22  Ecosystems and Biomes

Last Updated     6/7/2006      6/3/2006      5/29/2006      11/5/2005      10/9/2005     9/5/2005      8/27/2005     8/20/2005      8/18/2005     8/15/2005       3/6/2005      1/23/205     1/21/2005     11/17/2004     11/13/2004     8/29/2004     4/18/2003      3/19/2003

Previous: Populations and Communities        Next: Living Resources

Teacher Resources     Student Extra Credit

 

22-1 Energy Flow in Ecosystems
Energy Roles: Producer, Consumers, Decomposers
Food Chains and Food Webs
Energy Pyramids

22-4 Biomes and Aquatic Ecosystems
Rain Forest
Desert
Grassland
Deciduous Forest
Boreal Forest
Tundra
Mountains and Ice
Freshwater Ecosystems
Marine Ecosystems

22-2 Cycles of Matter
Water Cycle
Carbon and Oxygen Cycle
Nitrogen Cycle

22-3 Biogeography
Continental Drift
Means of Dispersal
Limits to Dispersal

 

Day 1
Topic  22 Ecosystems and Biomes
Objectives
Name and describe the energy roles that organisms play in an ecosystem.
Explain how energy moves through and ecosystem.
Describe how much energy is available at each level of an energy pyramid.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Producer:
organism that makes its own food
Consumer:
organism that obtains food by eating other organisms
Herbivore:
consumer that eats only plants
Carnivore:
consumer that only eats animals
Omnivore:
consumer that eats both plants and animals
Scavenger:
animal that only eats dead organisms
Decomposer:
organism that breaks down the wastes or remains of other organisms

Lecture.gif - 2227 Bytes  Producers, Consumers, and Decomposers

readme.gif (1442 bytes) Prentice Hall 740-745

Pencil.gif (1165 bytes)Science Explorer pages 111-113  # 1-16

TEC
Pencil.gif (1165 bytes) Food Webs at Hydrothermal Vents Science Explorer page 115
Resources

  

Day 2
Topic 22-1 Food Chains and Food Webs
Objectives
Explain and construct food chains and webs to show how organisms are related by and how they get their food.
Identify producers and different feeding levels of consumers in an ecosystem.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Food Web:
way of showing how food webs are related
Food Chain:
way of showing how the energy from food moves through populations of organisms in a community

Lecture.gif - 2227 Bytes  Producers, Consumers, and Decomposers

Pencil.gif - 434 Bytes
  Food Chains and Webs Elementary
Pencil.gif - 434 Bytes  Build a Bermudan Coral Food Pyramid
Pencil.gif - 434 Bytes  Who Eats Whom In a Bermudan Coral Reef

TEC
Resources
Note02.gif - 247 Bytes 
A Food Web Old Prentice-Hall TR 17-18
Note02.gif (247 bytes) Galapagos Food Web
Pencil.gif - 434 Bytes Introduction to Food Chains and Food Webs  Secondary
Earth.gif (6650 bytes) Fitting Algae Into the Food Web   Food Web Game

 

Day 3
Topic 22-1 Energy Pyramids
Objectives
Explain and construct an energy pyramid.
Show how organisms are related by how they get their food.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Energy Pyramid:
way of showing how energy moves through a food chain

Pencil.gif (434 bytes) Web of Life Identify food web species and create color-coded food web p. 10-12
TEC
Resources

 

Day 4
Topic  22-2 The Water Cycle
Objectives
Name and describe processes involved in the water cycle.
Define and describe the nitrogen cycle.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Water Cycle:
repeated movement of water between Earth's surface and the atmosphere
Evaporation:
changing of a liquid to a gas
Transpiration:
process by which plants lose water through the stomata in their leaves
Condensation:
changing of a gas to a liquid
Precipitation:
water that falls to Earth from the atmosphere: rain, snow, sleet,

Note02.gif (247 bytes) Cycles in Nature 

notebook33.gif - 266 Bytes Draw and Label Water Cycle       Water Cycle Diagram      Blank Water Cycle Diagram

readme.gif - 802 Bytes 
Prentice Hall 746-751

Pencil.gif (1165 bytes) Science Explorer pages 118-120  # 1-16

TEC
Pencil.gif (1165 bytes)Testing for Oxygen and Carbon Dioxide Science Explorer page 122
Resources
Note02.gif - 247 Bytes 
Water Cycle color diagram
Note02.gif - 247 Bytes What Do You Know About Water

 

Day 5
Topic 22-2 The Carbon Cycle and Nitrogen Cycle
Objectives
Explain the carbon cycle.
Explain how carbon and oxygen are recycled in an ecosystem.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Carbon Cycle:
repeated movement of carbon between Earth's atmosphere and organisms
Deforestation: excessive cutting of forests
Fossil Fuel:
energy source formed from the remains of plants and animals that lived and died long ago
Nitrogen Fixation: process of combing nitrogen with other elements to make usable compounds
Nitrogen Cycle:
movements of nitrogen compounds between the atmosphere, the soil, and living organisms
         

notebook33.gif (266 bytes) Carbon Cycle
1. Carbon dioxide is used by producers (plants) to make food.
2. Producers (plants)  release oxygen.
3. Oxygen used by air breathing organisms ( humans).
4. Carbon dioxide released by air breathing organisms ( humans).

TEC
Resources

 

Day 6
Topic 22-3 Biogeograhy
Objectives
Explain how the movements of the continents has affected the distribution of species.
Name and describe three ways that dispersal of organisms occurs.
Name and describe factors that can limit the dispersal of a species.
State Goals
Classwork-Homework 
Note02.gif - 247 Bytes Land & Water Paper Folding

readme.gif (802 bytes) Prentice Hall 752-753

Pencil.gif (1165 bytes) Science Explorer pages 125-126

TEC
Pencil.gif (1165 bytes) Organisms and Continental Drift Science Explorer page 128
Resources

 

Day 7
Topic 22-4 Biomes
Objectives
Name the six major biomes on Earth.
Name and describe the factors that determine the type of biome found in an area.
Describe the two major types of aquatic biomes.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Vocabulary
Climate:
average weather of an area over a long period of time
Biome:
large region with a characteristic climate and plant and animal communities

readme.gif (1442 bytes) Prentice Hall  758-769

 Pencil.gif (1165 bytes) Science Explorer page 134

TEC  Pencil.gif (434 bytes) Biome Project
Resources

 

Day 8
Topic 22-4 Biomes and Ecosystems
Objectives
Read for information on biomes.
State Goals
Classwork-Homework
Pencil.gif (1165 bytes) Science Explorer pages 134-138   # 1-26
TEC
Resources

 

Day 9
Topic Maps
Objectives
Label a world map showing the locations of the different biomes.
State Goals
Classwork-Homework
notebook33.gif (266 bytes) Seven Major Land Biomes
        Rain Forest
         Desert
         Grassland
         Deciduous Forest
         Boreal Forest
         Tundra
         Mountains and Ice

notebook33.gif (266 bytes)
Two Major Water Biomes
Marine Shoreline, low-tide, shallow water, deep water
Freshwater Lakes, ponds, streams, rivers

crayon0a.gif - 328 Bytes  Pencil.gif (1165 bytes) Earth's Biome Map Science Explorer page 140
Pencil.gif (434 bytes)   Bodies of Water Map

TEC
Resources
Lecture.gif - 2227 Bytes 
Biome Notes
Pencil.gif (434 bytes)   Label the Major Deserts of the World
Pencil.gif (434 bytes)   Desert Animals p.24

 

Day 10
Topic African Rain Forests
Objectives
Investigate the Rain Forest
State Goals
Classwork-Homework
readme.gif (1442 bytes) Prentice Hall 696-701

Pencil.gif (1165 bytes) Interdisciplinary Exploration: African Rain Forest
        Science Explorer pages 18-29
18 Dwarf Rain Forest Animals
19-20 Classifying the Great Apes
21 Bat Adaptations
22 Modeling Rain Forest Layers
23 Giant Rain Forest Animals
24 Comparing Tree Heights
25 Reading a Map of Madagascar
26 Peoples of the Rain Forest
27 Word Meanings
28-29 Aye-Aye

 crayon0a.gif (328 bytes) Rain Forest Layers Mailbox

star.gif (2279 bytes) Rain Forest Quest     Pencil.gif (1165 bytes) Rain Forest Chart

TEC
Resources

 

Day 11
Topic Evaluation
Objectives
Identify a food chain.
Identify Producers and consumers.
Identify herbivores, carnivores, omnivores, and decomposers.
Identify biotic and abiotic factors.
Name three biomes.
Discuss balance in an ecosystem.
Name a symbiotic relationship.
Name three scavengers.
List the parts of succession.
State Goals
Classwork-Homework
braininjar.gif (1615 bytes) The Lion King: An Ecological Study
         Watch the movie and take notes about the questions.
TEC
Resources


Teacher Resources

  Pencil.gif - 434 Bytes Activities  Magnify0b.gif - 341 Bytes Investigations   crayon0a.gif - 328 Bytes Art   Note02.gif - 247 Bytes Resources  Earth.gif - 6650 Bytes Web Sites

 BIOMES
 Pencil.gif - 434 Bytes  Biomes Scavenger Hunt  St. Louis Zoo activity.  Great information on biome characteristics.  Charts on zoo animals to research.
 Earth.gif (6650 bytes) All About Nature: Biomes-Habitats    The Earth has many different environments, varying in temperature, moisture, light, and many other factors. Each of these habitats has distinct life forms living in it, forming complex communities of interdependent organisms. A complex community of plants and animals in a region and a climate is called a biome.
 Earth.gif (6650 bytes)   Introduction to Biomes    Biomes are the major regional groupings of plants and animals discernible at a global scale. Their distribution patterns are strongly correlated with regional climate patterns and identified according to the climax vegetation type. However, a biome is composed not only of the climax vegetation, but also of associated successional communities, persistent subclimax communities, fauna, and soils.  Maps and pictures of biomes and plants.
 BIOMES: LAND
 Pencil.gif - 434 Bytes Intergalactic Zoo   Design an alien environment.
 crayon0a.gif - 328 Bytes  Forest Diorama  Make this diorama based on the real Olympic Rain Forest diorama at the American Museum of Natural History.
 crayon0a.gif - 328 Bytes  Wetlands Diorama  Make this diorama based on the real Wading Bird Rookery diorama at the American Museum of Natural History.
 Earth.gif - 6650 Bytes  The World's Biomes   Welcome to the World's Biomes Page. This is an introduction to the major biomes on Earth. Biomes are defined as "the world's major communities, classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment."
 BIOMES: WATER
 Magnify0b.gif - 341 Bytes Microinvertebrates
 Magnify0b.gif - 341 Bytes Ocean Drifters
 BIOMES: CONIFEROUS FOREST & TAIGA BIOMES
 Earth.gif - 6650 Bytes Animals of the Taiga/ Coniferous Forest Biomes   The Coniferous Forest and Taiga Biome stretches across a large portion of Canada, Europe and Asia. It is the largest biome in the world. Winters are cold. Summers are warm. Lots of conifers grow here.
 Earth.gif - 6650 Bytes  Investigate the Coniferous Forest & Taiga Biomes  The Coniferous Forest stretches across a large portion of Canada, Europe and Asia. It is the largest biome in the world. Winters are cold. Summers are warm. Lots of conifers grow here.
 BIOME: DECIDUOUS FOREST
 Earth.gif - 6650 Bytes  Animals of the Temperate Deciduous Forest   Temperate deciduous forests are forests in cool, rainy areas; they have trees that lose their leaves in Fall and regrow them in Spring. Temperate deciduous forests are found in the middle latitudes around the globe and have four distinct seasons: Spring, Summer, Fall, and Winter. In the Northern Hemisphere, these forests are found in North America, Europe, and Asia. In the Southern Hemisphere, there are smaller areas of these forests, in South America, Africa, and Australia. The growing season in these forests is about 6 months long.
 Earth.gif - 6650 Bytes  Investigate the Deciduous Temperate Forest   The Temperate Deciduous Forest has four seasons of winter, spring, summer, and fall. Animals and plants have special adaptations to cope with these yearly changes.
 BIOME: DESERT BIOME
 Pencil.gif - 434 Bytes Creatures of the Desert  Identify a mammal, a reptile, a bird, and an insect that live in the desert.  Research information and draw a picture.
 Pencil.gif - 434 Bytes Deserts Word Search Puzzle
 Pencil.gif (434 bytes)  Label the Major Deserts of the World
 crayon0a.gif - 328 Bytes  Desert Diorama  Make this diorama based on the real Sonoran Desert diorama at the American Museum of Natural History.
 Earth.gif - 6650 Bytes  Investigate Desert Biomes    Have you ever driven through a Desert on a trip to anywhere?
 BIOME: FRESH WATER BIOMES
 Earth.gif - 6650 Bytes  Explore-A-Pond   Can you populate the pond in such a way that by week 18 the creatures in the pond are still healthy and thriving? Click on Virtual Pond  
 Earth.gif - 6650 Bytes  Famous Rivers of the World    In every continent there is a famous river.  Here are some of the famous ones.
 Earth.gif - 6650 Bytes  Investigate Freshwater Ecosystems    You'll find a wide variety of animal life in or around fresh water ecosystems...aquatic birds... amphibians..mammals and of course, a wide variety of fish.
 Earth.gif - 6650 Bytes  Pond Animals   Ponds are teeming with both animal and plant life. Some animals live in the water (fish, crayfish, tadpoles, etc.), some live above the water (ducks, insects, etc.), and others live in the area surrounding the pond (raccoons, earthworms, etc.).
 BIOME: GRASSLAND
 Earth.gif - 6650 Bytes  America's Lost landscape: The Tall Grass Prairie   The North American grassland began about 23-25 million years ago during the Tertiary Period, marking the beginning of the Miocene Epoch, with the second uplift of the Rocky Mountains.
 Earth.gif - 6650 Bytes  Animals of the Prairie   A prairie is a temperate grassland, plains of grass that get hot in the summer and cold in the winter. Most of the interior of North America was a prairie before European settlement radically altered the environment with agriculture. Even now, the prairie is a large area. The animals that live in prairies have adapted to a semi-arid, windy environment with few trees or shrubs. They can also withstand a great range in temperature, from well below freezing in the winter to sweltering heat in the summer.
 Earth.gif - 6650 Bytes  Animals of the Savanna   A savanna is a hot, seasonally dry grassland with scattered trees. This environment is intermediate between a grassland and a forest. Savannas are located in the dry tropics and the subtropics, often bordering a rainforest. Savannas have an extended dry season and a rainy season.  The animals that live in savannas have adapted to a great deal of variability in the food supply throughout the year; there are times of plenty (during and after the wet season) and times of almost no food or water (during the dry season). Many savanna animals migrate to deal with this problem.
 Earth.gif - 6650 Bytes  Build A Praire   Are you up for the challenge?  If you choose the right plants and animals, you can watch the prairie come to life before your eyes!
 Earth.gif - 6650 Bytes  Grasslands   Go and explore an Enchanted Learning Site. A grassland is a grassy, windy, partly-dry biome, a sea of grass. Almost one-fourth of the Earth's land area is grassland. In many areas, grasslands separate forests from deserts. Deep-rooted grasses dominate the flora in a grassland; there are very few trees and shrubs in a grassland, less than one tree per acre. There are many different words for grassland environments around the world, including savannas, pampas, campos, plains, steppes, prairies and veldts.
 Earth.gif - 6650 Bytes  Illinois Praire Page    French explorers and trappers, upon viewing the extensive grasslands of mid-America for the first time, called them "prairie." Their word had the meaning of a natural meadow. Prairie is a vegetative community dominated by native grasses and featuring many colorful flowers.
 Earth.gif - 6650 Bytes  Introduction to Exploring the Praire   What was Iowa like 150 years ago?
 Earth.gif - 6650 Bytes  Investigate Grassland Biomes    Did you know that Grasslands are found on every continent except Antarctica?
 Earth.gif - 6650 Bytes  Northern Praire Biological Resources    Information on the biotic resources of the Great Plains.
 Earth.gif - 6650 Bytes  Praires: Rediscovering a Fragile Frontier   Contains an overview of the many endangered plants and animals that once inhabited the tallgrass prairie, the continent's largest connected ecosystem.
 Earth.gif - 6650 Bytes Praire Links   The following is a list of some of the resources that are available to prairie enthusiasts on the Internet.
 Earth.gif - 6650 Bytes Tall Grass Praire in Illinois   "The Prairie State" is a frequently used nickname for Illinois, yet few people know what a prairie is or have ever visited one. At the same time, there is a growing awareness of prairies. Prairies are an important part of this state's heritage, and in the past few years there have been numerous conferences, radio programs, popular articles, books and scientific papers on prairies.  This article provides an introduction to the fascinating world of prairies.
 BIOME: SALT WATER
 Pencil.gif - 434 Bytes  Oceans of the World  96 page unit
 Note02.gif - 247 Bytes  Ocean Animal Printouts    Click on an animal to go to a printout.
 Earth.gif - 6650 Bytes  Coral Reef Animals   Coral reefs are warm, clear, shallow ocean habitats that are rich in life. The reef's massive structure is formed from coral polyps, tiny animals that live in colonies; when coral polyps die, they leave behind a hard, stony, branching structure made of limestone.
 Earth.gif - 6650 Bytes   Investigate Marine Ecosystems   Come discover marine creatures from the tiny zooanthellae that make the coral reefs home to the giant mammals of the vast seas.
 Earth.gif - 6650 Bytes  Life on the Reef    Marine biologists from across the U.S. have gathered in the Bahamas to study creatures along one of the world's largest barrier reefs.
 BIOME: TROPICAL RAIN FOREST
 Earth.gif - 6650 Bytes  Animals of the Rain Forest   This web site was developed by the 1999 6th grade class at Midlakes Middle School.  It came about as a direct result of our involvement in the Jason X Project. The kids actually researched up to 50 facts and wrote papers on their animals.
 Earth.gif - 6650 Bytes  Investigate Rain Forests of the World   Did you know there are two types of rain forests-- the temperate and the tropical?
 Earth.gif - 6650 Bytes  Journey Into Amazonia   What mysteries does Amazonia hold? That's just what scientists at the American Museum of Natural History want you, Sam Smith, to find out. If you're ready to explore the wilds of the Amazon jungle, journey on, adventurer!
 Earth.gif - 6650 Bytes Zoom Rain Forests   Zoom Rainforests is a comprehensive on-line hypertext book about tropical and temperate rainforests. It is designed for students of all ages and levels of comprehension. It has an easy-to-use structure that allows readers to start at a basic level on each topic, and then to progress to more advanced information as desired.
 BIOME: TUNDRA
 Earth.gif - 6650 Bytes Animals of the Arctic   The world has many different animals. In the Arctic we have many animals that are unique to the north that we would like to tell you about.  We have chosen some of the most unique arctic animals there are.
 Earth.gif - 6650 Bytes  Arctic   The Arctic is a very cold, windy, and often snowy biome located around the North Pole. When referring to the Arctic, people usually mean the part of the earth within the Arctic Circle (an imaginary circle around the Earth, parallel to the Equator and 23 degrees 28 minutes from the North Pole, that is, above about 75 degrees North Latitude). Although there is no land at the North Pole, the icy Arctic Ocean is teeming with life ranging from the microscopic (like zooplankton) to the huge (like whales).
 Earth.gif - 6650 Bytes  Investigate the Tundra Biome   How cold is cold? The Tundra Biome is at the top of the world -- around the North Pole!
 Earth.gif - 6650 Bytes  Tundra   Enchanted Learning Site. The tundra is a cold, treeless area; it is the coldest biome. The tundra is characterized by very low temperatures, very little precipitation (rain or snow), a short growing season, few nutrients, and low biological diversity. The word tundra comes from the Finnish word tunturia, which means "treeless plain."  There are two types of tundras, Arctic tundras and alpine tundras.
 FOOD CHAINS & WEBS
 Pencil.gif - 434 Bytes  Build a Bermudan Coral Food Pyramid  Students will be able to construct a pyramid of numbers using data from a Bermudan coral reef.
 Pencil.gif - 434 Bytes Food Chain Mania
 Pencil.gif - 434 Bytes Food Webs and Trophic Levels
 Pencil.gif - 434 Bytes  Who Am I?  Students work together to determine the role of ocean producers and consumers within the ocean food chain.
 Pencil.gif - 434 Bytes  Who Eats Whom In a Bermudan Coral Reef  Students will be able to find out about feeding relationships on a coral reef and develop a food chain and food web using coral reef animals and plants.
 Note02.gif - 247 Bytes  Food Chains/ Nutrition  Pupil Factsheet
 Earth.gif - 6650 Bytes  The Food Chain    What is the difference between the 'Food Chain' and 'Food Web?'  A popular misnomer, the 'food chain' is not actually a linear chain but a complex web.  Energy is passed from one organism to another in a complex network like a spider's web.
 WATER CYCLE
 Magnify0b.gif - 341 Bytes Water Cycle in a 2-Liter Bottle    All of the earth's water goes through a cycle in which the water changes its location or physical state through different processes. In accordance with the law of conservation of matter, water is not created or destroyed it just changes form. Water can be found in all three states of matter during the cycle: solid (ice caps), liquid (lakes) and gas (water vapor).  Use two 2-Liter bottles to create your own water cycle.  Neat activity!!
 Earth.gif - 6650 Bytes  The Watershed Game    Many things happen in a watershed that affect the quality of the water we rely upon. What are they?  Would you make the best decisions in managing your watershed?  Examine the issues in each area of the watershed, then see the impacts of your choices!
 Note02.gif - 247 Bytes What Do You Know About Water
 


 

Student Extra Credit

 star.gif - 2279 Bytes Extra Credit star.gif - 2279 Bytes

 star.gif (2279 bytes)Create a Food Web   This is a COOL site!  An interactive worksheet. You know that a  food web is made up of two or more interconnected food chains, and that it shows the food relationships among organisms in a community. Let's see you create a food web.  Click and drag the animals, plants, and arrows to form a possible food web.  Arrows should be drawn from food source to food consumers.  At the end of this activity, you can discard excess pictures into the Recycle Bin and then right-click to print your food web.  If you move your mouse pointer on the picture the name will pop-up.  Bring in your food web for me to see for extra credit!
 star.gif (2279 bytes) Food Chains  Go to BrainPOP and watch the movie on food chains to complete the worksheets.
 star.gif (2279 bytes) Rain Forest Quest


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