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BIOTIC RELATIONS They are the interactions among the living things in an environment. Two types: interspecific and intraspecific.
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Biotic relations

Aug 22, 2015

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Page 1: Biotic relations

BIOTIC RELATIONS

They are the interactions among the living things in an environment. Two types: interspecific and intraspecific.

Page 2: Biotic relations

INTRASPECIFICRELATIONSHIPS

Biotic relations I

Interaction among organisms of the

SAME SPECIES.

Page 3: Biotic relations

Intraspecific relationshipsIntraspecific relationships

Cooperative relationshipsCompetitive relationships

Such as roosters, which fight to get the females.

Gregarious associations

Such as shoals of fish, which search for food together.NOT NECESSARILY RELATED.

Family associations

Like families of monkeys, which take care of the young. RELATED.

Social

Such as ant colonies, which have an ordered work system. HIERARCHY.

Colonial forms

Such as coral colonies, whichlive together. RELATED.

Page 4: Biotic relations

INTERSPECIFICRELATIONSHIPS

Biotic relations II

Interaction among organisms of

DIFFERENT SPECIES.

Page 5: Biotic relations

Interspecific relationships

La competenciaInterspecific competition [- -]

Such as vultures and hyenas, which compete for the same food.

La depredaciónPredation [+ -]

Such as chameleons, which capture prey with their sticky tongue. NOT OBLIGATORY. Predator +, prey -

El parasitismoParasitism [+ -]

Such as ticks, which suck blood in order to feed. OBLIGATORY.

Parasite +, hoster -

El comensalismoCommensalism (and inquilinism) [+ 0]

Such as remoras, which attach themselves to sharks to move.

El mutualismoMutualism [+ +]

Such as lichen: algae produce nutrients and fungi provide humidity.