IB Biology Topic D4.2.13 Changes Occurring During Primary Succession Revision Notes (HL)

IB Biology Topic D4.2.13 Changes Occurring During Primary Succession Revision Notes (HL) | RevisionDojo

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Primary succession rebuilds an ecosystem from bare rock into a stable community

Primary succession begins in lifeless places such as bare rock, sand, or clay left by glaciers or volcanic eruptions.

The community changes through four broad stages as soil deepens and conditions improve.
Pioneer species (bacteria, lichens, and mosses) are the first colonisers of bare rock.
1. They break rock down into smaller particles and add organic matter as they die, forming the first thin soil.

Definition

Primary succession

Primary succession is the process by which life gradually colonizes and transforms a previously uninhabitable area.

Analogy

Think of pioneer species as the first builders on a construction site.
They lay the groundwork so other species can follow.

Herbs and grasses establish once a little soil is present.
1. Their roots anchor the soil against erosion and improve water retention.

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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.

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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

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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

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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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Primary succession rebuilds an ecosystem from bare rock into a stable community

Primary succession begins in lifeless places such as bare rock, sand, or clay left by glaciers or volcanic eruptions.

The community changes through four broad stages as soil deepens and conditions improve.
Pioneer species (bacteria, lichens, and mosses) are the first colonisers of bare rock.
1. They break rock down into smaller particles and add organic matter as they die, forming the first thin soil.

Definition

Primary succession

Primary succession is the process by which life gradually colonizes and transforms a previously uninhabitable area.

Analogy

Think of pioneer species as the first builders on a construction site.
They lay the groundwork so other species can follow.

Herbs and grasses establish once a little soil is present.
1. Their roots anchor the soil against erosion and improve water retention.

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.

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic D4.2.13: Changes Occurring During Primary Succession Notes

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

Primary succession rebuilds an ecosystem from bare rock into a stable community

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

Primary succession rebuilds an ecosystem from bare rock into a stable community

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