interactions within ecosystems chapter the big idea living things within an ecosystem interact with...
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Interactions within Ecosystems
CHAPTER
thethe BIGBIG ideaidea
Living things within an ecosystem interact with each other and the environment.
Groups of living things interact within ecosystems.
Organisms can interact in different ways.
Ecosystems are always changing.
CHAPTER OUTLINE
NEW CHAPTER
2.12.1
2.22.2
2.32.3
CHAPTER RESOURCES
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KEY CONCEPT CHAPTER HOME
habitat
population
niche
Groups of living things interact within ecosystems.
SECTION OUTLINESECTION OUTLINE
species
community
• Members of the same species form a population with in a habitat.
• Each species has a distinct role with in a habitat. This is its niche.
2.12.1
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VOCABULARY
KEY CONCEPT CHAPTER HOME
SECTIONOUTLINESECTIONOUTLINE
Organisms can interact in different ways.
Organisms within a community interact with each other in many ways. Some are predators, some are prey. Some compete with one another, some cooperate. Some species form symbiotic relationships with other species:
Mutualismbenefits both
Commensalism benefits one, other unaffected
Parasitism benefits one, harms other
cooperation
symbiosis
competition
mutualism
commensalism
parasitism
predator
prey
2.22.2
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
Ecosystems are always changing.
SECTIONOUTLINESECTIONOUTLINE
carrying capacity
succession
limiting factor
pioneer species
Primary Succession In a barren area, a new community is established with pioneer species, like mosses, that do well with little or no soil. Mosses eventually give way to coniferous trees.
2.32.3
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
Ecosystems are always changing.
SECTIONOUTLINESECTIONOUTLINE
carrying capacity
succession
limiting factor
pioneer species
Secondary SuccessionWhen a disturbance damages a community but soil remains, the community gets reestablished from seeds and roots left behind. Grasses grow, then small shrubs, and eventually trees.
2.32.3
CHAPTERRESOURCESCHAPTERRESOURCES
VOCABULARY
KEY CONCEPT CHAPTER HOME
Ecosystems are always changing.
SECTIONOUTLINESECTIONOUTLINE
carrying capacity
succession
limiting factor
pioneer species
2.32.3
Secondary SuccessionWhen a disturbance damages a community but soil remains, the community gets reestablished from seeds and roots left behind. Grasses grow, then small shrubs, and eventually trees.
SIMULATION
Simulate the carrying capacity of an area for a population of deer.
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KEY CONCEPT CHAPTER HOME
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
habitat
population
niche
species
community
I. Groups of living things interact within ecosystems.
A. Organisms occupy specific living areas.
1. Populations
2. Habitats and Niches
1. Patterns in Living Space
2. Patterns in Time
C. Patterns exist in populations.
B. The environment can be organized into five levels.
Groups of living things interact within ecosystems.
3. Communities
2.12.1
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KEY CONCEPT CHAPTER HOME
II. Organisms can interact in different ways.
A. Organisms interact in different ways.
B. The survival of one species might depend on another species.
C. Interactions in an ecosystem are complex.
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
Organisms can interact in different ways.
cooperation
symbiosis
competition
mutualism
commensalism
parasitism
1. Predator and Prey
2. Competition
3. Cooperation
1. Both Species Benefit
2. One Species Benefits
3. One Species Is Harmed
predator
prey
2.22.2
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KEY CONCEPT CHAPTER HOME
III. Ecosystems are always changing.
KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY
carrying capacity
succession
limiting factor
pioneer species
A. Populations change over time.
B. Ecosystems change over time.
1. Population Growth and Decline
2. Maintaining a Balance
1. Primary Succession
2. Secondary Succession
3. Patterns of Change
Ecosystems are always changing.2.32.3
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