IB Environmental systems and societies Topic 2.1H Habitat Revision Notes (SL/HL)

IB Environmental systems and societies Topic 2.1H Habitat Revision Notes (SL/HL) | RevisionDojo

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Habitat: The Physical Address Where a Species Lives

Definition

Habitat

A habitat is the physical location where a species lives and interacts with its environment.

What a Habitat Provides

A habitat is the physical place, the address, where a species normally lives.
It supplies the abiotic (non-living) and biotic (living) conditions a species needs to survive, grow, and reproduce.
Every species has a habitat range set by its tolerances to abiotic conditions such as temperature, water, salinity, and pH.
A species can only persist where conditions stay within its range of tolerance, so its habitat marks the limits of where it survives.

Common Mistake

Do not confuse habitat with niche.
The habitat is the address: the physical place where a species lives.
The niche is the occupation: how the species interacts and uses resources, covered in 2.1C.
Many species can share one habitat, but each fills a different niche.

Habitats Range From Whole Biomes Down to Microhabitats

Habitats are broadly terrestrial (land-based) or aquatic (water-based).
1. Terrestrial habitats include forests, grasslands, deserts, tundra, and mountains.
2. Aquatic habitats include freshwater (lakes, rivers, wetlands) and marine (oceans, coral reefs, estuaries) systems.

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Habitat: The Physical Address Where a Species Lives

Definition

Habitat

A habitat is the physical location where a species lives and interacts with its environment.

What a Habitat Provides

A habitat is the physical place, the address, where a species normally lives.
It supplies the abiotic (non-living) and biotic (living) conditions a species needs to survive, grow, and reproduce.
Every species has a habitat range set by its tolerances to abiotic conditions such as temperature, water, salinity, and pH.
A species can only persist where conditions stay within its range of tolerance, so its habitat marks the limits of where it survives.

Common Mistake

Do not confuse habitat with niche.
The habitat is the address: the physical place where a species lives.
The niche is the occupation: how the species interacts and uses resources, covered in 2.1C.
Many species can share one habitat, but each fills a different niche.

Habitats Range From Whole Biomes Down to Microhabitats

Habitats are broadly terrestrial (land-based) or aquatic (water-based).
1. Terrestrial habitats include forests, grasslands, deserts, tundra, and mountains.
2. Aquatic habitats include freshwater (lakes, rivers, wetlands) and marine (oceans, coral reefs, estuaries) systems.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

IB Environmental systems and societies 2.1H Habitat Notes

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

Habitat: The Physical Address Where a Species Lives

What a Habitat Provides

Habitats Range From Whole Biomes Down to Microhabitats

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Habitat: The Physical Address Where a Species Lives

What a Habitat Provides

Habitats Range From Whole Biomes Down to Microhabitats

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account