Threats To Biodiversity Flashcards

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1
Q

Bottleneck effect

A

Result of the wiping out of a significant percentage of a population and its genetic diversity, leaving it ill-equipped to adapt to environmental change.

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2
Q

Bottleneck event

A

Cause of the bottleneck effect, typically a natural disaster.

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3
Q

Conservation

A

Protection and careful management of natural resources.

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4
Q

Habitat corridor

A

Narrow strip of quality habitat by which a species can move between disconnected habitat fragments.

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5
Q

Habitat fragmentation

A

Formation of several fragments whose total surface area is less than that of the original habitat.

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6
Q

Introduced

A

Foreign species that has been cultivated intentionally or released accidentally by human activities.

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7
Q

Invasive

A

Naturalised species that has spread rapidly and has outcompetes native species.

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8
Q

Naturalised

A

Non-native species that has established itself within wild communities.

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9
Q

Overexploitation

A

Removal and use of species at a rate that exceeds their maximum rate of reproduction.

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10
Q

Recolonisation

A

Return to and resettlement in a habitat after local extinctions.

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11
Q

Result of the wiping out of a significant percentage of a population and its genetic diversity, leaving it ill-equipped to adapt to environmental change.

A

Bottleneck effect

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12
Q

Cause of the bottleneck effect, typically a natural disaster.

A

Bottleneck event

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13
Q

Protection and careful management of natural resources.

A

Conservation

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14
Q

Narrow strip of quality habitat by which a species can move between disconnected habitat fragments.

A

Habitat corridor

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15
Q

Formation of several fragments whose total surface area is less than that of the original habitat.

A

Habitat fragmentation

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16
Q

Foreign species that has been cultivated intentionally or released accidentally by human activities.

A

Introduced

17
Q

Naturalised species that has spread rapidly and has outcompetes native species.

A

Invasive

18
Q

Non-native species that has established itself within wild communities.

A

Naturalised

19
Q

Removal and use of species at a rate that exceeds their maximum rate of reproduction.

A

Over exploitation

20
Q

Return to and resettlement in a habitat after local extinctions.

A

Recolonisation