IB Biology Topic C4.1.9 Competition Versus Cooperation in Intraspecific Relationships Revision Notes (SL/HL)

IB Biology Topic C4.1.9 Competition Versus Cooperation in Intraspecific Relationships Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Within one species, competition and cooperation both shape survival

Intraspecific relationships are interactions between members of the same species.
These individuals both compete for shared resources and cooperate to improve survival and reproduction.

Analogy

Think of a classroom during exams.
You compete for the top grade, a limited reward.
You also form study groups to help each other prepare.

Individuals compete because they need the same limited resources

Members of one species need almost identical resources, such as the same food, water, light, mates, and space.
Because these resources are finite, individuals are forced to compete for them.
This overlap makes intraspecific competition especially intense, since no two competitors want anything different.

Tip

Intraspecific competition is often more intense than competition between species.
Individuals of the same species have nearly identical needs, so their demands overlap completely.

Competition appears wherever a resource is scarce

Breeding sites
1. Guillemots compete for the best ledges on cliffs, which offer safety from predators and weather.
2. Male frogs compete for territories with the best calling sites to attract females.
Light
1. In dense woodland, wild garlic plants compete for sunlight.

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Note

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Tip

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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.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Within one species, competition and cooperation both shape survival

Intraspecific relationships are interactions between members of the same species.
These individuals both compete for shared resources and cooperate to improve survival and reproduction.

Analogy

Think of a classroom during exams.
You compete for the top grade, a limited reward.
You also form study groups to help each other prepare.

Individuals compete because they need the same limited resources

Members of one species need almost identical resources, such as the same food, water, light, mates, and space.
Because these resources are finite, individuals are forced to compete for them.
This overlap makes intraspecific competition especially intense, since no two competitors want anything different.

Tip

Intraspecific competition is often more intense than competition between species.
Individuals of the same species have nearly identical needs, so their demands overlap completely.

Competition appears wherever a resource is scarce

Breeding sites
1. Guillemots compete for the best ledges on cliffs, which offer safety from predators and weather.
2. Male frogs compete for territories with the best calling sites to attract females.
Light
1. In dense woodland, wild garlic plants compete for sunlight.

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 C4.1.9: Competition Versus Cooperation in Intraspecific Relationships Notes

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

Within one species, competition and cooperation both shape survival

Individuals compete because they need the same limited resources

Competition appears wherever a resource is scarce

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

Within one species, competition and cooperation both shape survival

Individuals compete because they need the same limited resources

Competition appears wherever a resource is scarce

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