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biology > Diversity > Flashcards

Diversity Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

consists of a group of organisms that can mate with each other and produce offspring that are able to reproduce.

A

Species

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2
Q

Variety of genes or inheritable characteristics that are present in the population.

A

Genetic diversity

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3
Q

adaptations to local conditions

A

Genetic diversity

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4
Q

What does genetic diversity do

A

increases the chances that some individuals will survive during changing environmental conditions or during an outbreak of a disease

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5
Q

variety and extent of differences among living things, which include all microorganisms, plants, animals, and other living things.

A

SPECIES
DIVERSITY

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6
Q

number of different species and the relative abundance of species

A

SPECIES
DIVERSITY

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7
Q

Species diversity Of particular concern are species that are

A

endangered or threatened.

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8
Q

number of different
species in the community

A

Species richness – the

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9
Q

proportion each species represents of all individuals in the community

A

Species evenness or relative abundance –

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10
Q

most abundant species

A

Species dominance

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11
Q

Variety of ecosystems that is present in a biosphere. different kinds of places where organisms live
And bind these organisms together.

A

Edosystem diversity

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12
Q

The extinction of populations of one species can

A

ECOSYSTEM
DIVERSITY, a negative impact on other species in the ecosystem

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13
Q

the ability to resist change in the face of disturbances.

A

stability

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14
Q

stable ecosystem can

A

increase the probability of organism’s adaptation and survival in a changing environment.

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15
Q

species on which other species in an ecosystem largely depend,

A

Keystone

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16
Q

Not abundant in nature

A

KEYSTONE

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17
Q

• Some limits the abundance of
competitively dominant species

A

KEYSTONEk

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18
Q

Controls community structure by their
pivotal ecological roles

A

KEYSTONE

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19
Q

Have strong effects on their communities
as a result of their large size, high • abundance, or pivotal role in community dynamics

A

FOUNDATION

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20
Q

May provide significant habitat or food for other species

A

FOUNDATION

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21
Q

Species that create or dramatically alter their physical environment.

A

ECOSYSTEM ENGINEERS

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22
Q

Their effects can either be positive or negative depending on the needs of the other species

A

ECOSYSTEM engineer

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23
Q

lso known as invasive, nonnative, or exotic species

A

Introduced

24
Q

Is an organism that causes ecological or economic harm in a new environment where it is not native

A

I INTRODUCED

25
Q

Moved by humans either intentionally or accidentally from its native location to a new geographic region

A

Introduced species

26
Q

An international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis.

A

TERNATIONAL UNION OF CONSERVATION AND NATURE (IUCN)

27
Q

The end of a species or group of species.

A

EXTINCT

28
Q

no surviving individuals that can reproduce and create a new generation.

A

Extinct

29
Q

Species known only to survive in cultivation

A

Extinct in the woild

30
Q

large numbers of species become extinct worldwide.

A

Mass extinction

31
Q

may occur due to habitat destruction and inability to adapt to a
The “Big Five” Mass Extinctions
• Ordovician • Devonian • Permian
• Triassic
changed environment

A

Mass extinctions

32
Q

Big 5 mass extinctions

A

Ordovician
• Devonian
• Permian
• Triassic
• Cretaceous

33
Q

Refers to any species of animals, plants, fungi, and other organisms that are vulnerable to endangerment in the near future.

A

THREATENED

34
Q

high risk of extinction in the wild in the medium-term future.

A

Vulnerable species–

35
Q

very high risk of extinction in the wild in the near future.

A

. Endangered species –

36
Q

extremely high risk of extinction in the wild in the immediate future.

A

Critically endangered species–

37
Q

These organisms with an estimated reduction of 20% over the last ten years, show sever fragmentation, or known to exist in no more than ten locations.

A

Vunerable

38
Q

Vulnerable species population number

A

Less 1k

39
Q

These are organisms with an estimated reduction of 50% over the last ten years, show severe fragmentation, or known to exist in no more than five locations.

A

Endangered

40
Q

Endangered numbfr
Per

A

Under 250

41
Q

These organisms with an estimated reduction of 80% over the last ten years, show sever fragmentation, or known to exist at inly a singe location.

A

Critically endangered species

42
Q

Critically endangered species population

A

Under 50

43
Q

clearing or destruction of habitat

A

Habitat destruction

44
Q

disruption of ecosystem processes

A

Habitat disruption –

45
Q

eparation of an ecosystem into small pieces of land.

A

Habitat fragmentation – s

46
Q

different environmental conditions that occur along
the boundaries of an ecosystem.

A

Edge effect –

47
Q

Edge effect – habitat?

A

Fragmentation

48
Q

These species are not a threat to biodiversity in their native habitats.

A

ntroduced species
•

49
Q

resources that are replaced by natural processed faster than they are consumed. Supply is not unlimited.

A

Renewable resources –

50
Q

resources found in limited amounts or those that are replaced by natural processes over extremely long periods of time.

A

Nonrenewable resources –

51
Q

using resources at a rate in which they can be replaced or recycled while preserving the long-term environmental health of the biosphere.

A

Sustainable use –

52
Q

relatively small area with numerous endemic species (species found nowhere else in the world) and a large number of endangered and threatened species

A

Biodiversity hotspots, a

53
Q

protected “islands” of biodiversity in a sea of habitat altered or degraded by human activity.

A

o Nature reserves are

54
Q

n extensive region that includes areas relatively undisturbed by humans surrounded by areas that have been changed by human activities and are used for economic gain.

A

Zoned reserves are a

55
Q

The use of living organisms, such as prokaryotes, fungi, or plants, to detoxify a polluted area.

A

Bioremediation

56
Q

Adding natural predators to a degraded ecosystem

A

Biological augmentation –

biology (35 decks)

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