Unit 3 Ecology
Chapter 21 Populations and Communities
Last Updated 10/12/2009 10/10/2009
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Created
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Previous:
Endocrine System and Reproduction Next: Ecosystems and Biomes
Teacher Resources Student Extra Credit
21-1
Living Things and the Environment |
21-3 Interactions Among Living Things |
21.2
Studying Populations |
21-4 Changes in Communities |
Day
1 Prentice Hall
704-709 RSG 21-1 Living Things & the Environment |
Day
6
Prentice Hall 722-733 RSG 21-3 &
21-4 Populations & Succession |
| Day
2 Population Graph: Albatross and
Chicks |
Day
7 Gator Hole Graphics |
| Day
3
Prentice Hall 711-718RSG 21-2 Studying Populations |
Day 8  Clipbirds Competition: same beak, different sizes |
| Day
5 The Kaibab Deer
Kaibab Food Pyramid Story The Lesson of the Kaibab Deer: Predation or
Starvation |
Day
9 Fire On the Mountain |
| Day 1 |
| Topic 21-1 Habitats and Biotic-Abiotic Factors |
| Objectives/ I can... Explain how organisms may have the same habitat but not the same niche. |
| State Goals 12.B.2a Describe relationships between various organisms in their environment. 12.B.3a Identify and classify biotic and abiotic factors in an environment. 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential. |
Classwork-Homework
On the BoardHabitat: place where an organism lives, grows and reproduces Niche: organism's role, or job, in its habitat Biotic Factors: The living parts of a habitat Abiotic Factors: The nonliving parts of an organism's habitat 
Kingfisher and Heron Niche/Habita Diagram |
| TEC |
Resources Be an Expert: Environmental Science Niche Information from
Natureworks. |
| Day 2 | ||||||||
| Topic 21-1 Levels of Organization | ||||||||
| Objectives/ I can... Describe the parts of an ecosystem. Describe how organisms interact with their environments. |
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| State Goals 12.B.2a Describe relationships between various organisms in their environment. 12.B.3a Identify and classify biotic and abiotic factors in an environment that affect population density. 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential. 12.C.1a Identify and compare sources of energy. |
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| Classwork-Homework
On the Board Population: group of the same kind of organisms living in a certain place Community: all the populations that live in a certain place and can interact with one another Ecosystem: group of communities interacting with each other and the nonliving parts of their environment Environment: everything that surrounds an organism and acts upon it Ecology: study of the relationship between living things and their environments Interact: process of organisms acting upon one another or on the nonliving parts of their environment Self-Supporting Ecosystem
|
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| TEC | ||||||||
| Resources Ecology |
| Day 3 |
| Topic 21-2 Studying Populations |
| Objectives/ I can... Describe methods for determining the size of a population. Explain the causes of changes in population size. Identify factors that limit population growth. |
| State Goals 12.B.3a Identify and classify biotic and abiotic factors in an environment that affect population density. |
| Classwork-Homework
Prentice Hall 711-718
Total Population = Number of Marked X Total
Number Captured |
| TEC |
| Resource Brine
Shrimp Hatching |
| Day 4 | ||||
| Topic 21-2 Limiting Factors | ||||
| Objectives/ I can... Explain what affects population size. |
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| State Goals 12.B.3a Identify and classify biotic and abiotic factors in an environment that affect population density. |
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| Classwork-Homework
On the Board Limiting Factor: condition in the environment that put limits on the size of a population can grow to Range: area where a type of animal or plant population is found Carrying Capacity: largest population that can be supported by the available resources of an area Limiting Factors
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| TEC | ||||
| Resources How Many Bears Can
Live In the Forest? |
| Day 5 |
| Topic Kaibab Plateau |
| Objectives/ I can... Create a population line graph. Hypothesize limiting factors. Infer the affect of a predator prey relationship. To learn how predator-prey interactions in cause oscillations in population numbers |
| State Goals 12.B.2a Describe relationships between various organisms in their environment. 12.B.3a Identify and classify biotic and abiotic factors in an environment that affect population density. 12.B.3b Compare and assess features of organisms for their adapatative, competitive, and survival potential |
Classwork-Homework
Kaibab Plateau
2:03
Mountain Lion Kills
Deer 2:36
|
| TEC
Graphing Population Growth Globe Fearon p.263 Deer/Wolf Graph with directions |
Resources Kaibab Deer Herd Must Be Reduced
Immediately Department of Agriculture Report 10/13/1924 Kaibab Deer Case:
Myth or Reality An article that refutes the events Cheetah
and the Antelope |
| Day 6 |
| Topic 21-3 Interactions among Living Things |
| Objectives/ I can... Explain how an organism's adaptations help it survive. Describe the major kinds of interactions among organisms in an ecosystem. Identify the three types of symbiotic relationships. |
| State Goals 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential |
| Classwork-Homework
Prentice Hall 722-729 |
| TEC From
Pond to Forest Science Explorer page 77 |
| Resources Animal Jeopardy Lecture Notes |
| Day 7 |
| Topic 21-3 Competition and Predation |
| Objectives/ I can... Explain how interactions between living things help maintain balance in an ecosystem. Describe the three types of symbiotic relationships. |
| State Goals 12.B.3b Compare and assess features of organisms for the adapatative, competitive, and survival potential |
| Classwork-Homework
On the Board Competition: struggle among organisms for resources in an ecosystem Predation: relationship in which an organism kills and eats other organisms Predator: organism that kills and eats another organism Prey: organism that is killed and eaten by another organism Symbiosis: relationship between different species living in close association with one another Host: organism a parasite feeds on
On the BoardSymbiotic Relationships Mutualism: relationship between organisms that benefits both of them Commensalism: relationship between organisms in which one benefits and the other is unaffected Parasitism: relationship between organisms in which one lives on or in another organism and causes it harm
|
| TEC |
| Resources |
| Day 8 |
| Topic 21-4 Changes in Communities |
| Objectives/ I can... Describe the differences between primary and secondary succession. |
| State Goals 12.B.2a Describe relationships between various organisms in their environment. 12.B.3b Compare and assess features of organisms for their adapatative, competitive, and survival potential |
| Classwork-Homework
|
| TEC |
| Resources |
| Day 9 |
| Topic 21-4 Succession |
| Objectives/ I can... Describe how communities of organisms develop. |
| State Goals 12.B.2a Describe relationships between various organisms in their environment. |
| Classwork-Homework
On the Board Succession: gradual change in populations of organisms when the environment changes Primary Succession: changes that occur in an area where no soil or organisms exist Pioneer Species: first species to populate an area Climax Community: last community in a succession
|
| TEC |
| Resources How a Field Becomes a Forest How is it that barren farm land was able to become the forests of today? The answer lies in a process known as "succession." Succession is a natural pattern of ecosystem change that takes place over time. |
| Day 10 |
| Topic Jeopardy |
| Objectives/ I can... Answer questions about the environment. |
| State Goals 12.B.2a Describe relationships between various organisms in their environment. 12.B.3a Identify and classify biotic and abiotic factors in an environment that affect population density. |
| Classwork-Homework Interactions
Among Living Things Jeopardy |
| TEC |
| Resources
Weather and Whooping Cranes Science Explorer pages 81-85 |
Previous: Endocrine System and
Reproduction Next: Ecosystems and Biomes
TEACHER RESOURCES
|
| BIOTIC & ABIOTIC |
| Making Community
Measurements: Biotic Factors |
| CARRYING CAPACITY |
 Environmental
Biology-Ecosystems How
energy moves through an ecosystem. |
| CONSUMERS |
| Wildlife Skull Activities
Observations of an animal’s skull. |
| ECOLOGY |
| Ecology |
| Ecology: Environmental Education on the Web An ecology learning site. |
| ENVIRONMENT |
|
Snow Lovers or Haters
Students research, both indoors and out, chionophobes, chioneuphores, and
chionophiles, and conduct a class quiz and discussion. |
| LIMITING FACTORS |
| How Many Bears Can Live In the
Forest?
Black bears illustrate the importance of suitable habitat for wildlife. |
| POPULATION |
| How Many Critters Live Here? Abiotic, Biotoc factors |
| U.S. Census
Bureau What is the population of the United States? |
| PREDATORS and PREY |
| Wolves: Mammilian Predators |
| Predator
and Prey Learn
about animal predators and their prey. |
| SUCCESSION |
| From
Forest to Farm
Analyze an essay on timber harvesting and forest regeneration in Petersham, Massachusetts. |
| How a Field Becomes a Forest
"Succession," a natural pattern of ecosystem change that
takes place over time. |
|
| Bermuda Wave Height
Graphing Activity Calculate average wave heights and plot the data. |
| State of the States Worksheet The 2000 Census revealed some
interesting facts and trends. No states lost any of their population, but the population
is shifting to the west and to the south. To learn more about how the US changed
during the last decade complete the State of the States Worksheet using Table 1: Resident Population of
the United States |
| World Population 1950-2050 Create a World Population Graph
using the data provided. |
Previous: Endocrine System and
Reproduction Next: Ecosystems and Biomes
Art
Activity 
_Tests 
Maps
Field Trips
Computer
Book 
PPT
