Niche Flashcards

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1
Q

Define a niche.

A

The ecological niche of an organism is the functional role it plays in the community

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2
Q

What information is included in an organism’s niche?

4

A

What it eats

What it is eaten by

How it interacts with organisms

How it interacts with its abiotic environment

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3
Q

Why can two organisms with identical niches not survive for long in the same habitat?

A

This is because they would both compete in some way e.g. for food, space, nesting sites etc.

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4
Q

How do swallows, thrushes and blackbirds prevent competition?
(3)

A

By occupying different niches in the same habitiat

The swallow feeds on aerial insects

The thrush feeds on ground insects and snails

The blackbird takes insects on trees, but mostly eats fruit and worms

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5
Q

What do swallows feed on?

A

Aerial insects

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6
Q

What do thrushes feed on>

A

Ground insects and snails

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7
Q

What do blackbirds feed on?

A

Insects on trees, but mostly fruits and worms

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8
Q

How do edible and flat periwinkles prevent competition?

3

A

They occupy different niches

Edible periwinkles feed on algae scraped from rocks

Flat periwinkles feed on larger seaweeds

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