Unit 2 Flashcards

1
Q

why is species diversity considered a critical enviromental indicator

A

it shows whether more sensitive species can survive

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2
Q

habitat/ecosystem variety

A

variety of habitats in a given region

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3
Q

why is it more advantageous to be specialist

A

less competition

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4
Q

species evenness

A

abundance of individuals within each species

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5
Q

instrinsic value

A

spirituals value

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6
Q

instrumental value

A

worth in goods and service s

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7
Q

provisioning

A

goods used directly

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8
Q

regulating

A

helps regulate enviromental conditions

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9
Q

support

A

processes needed to maintain other services

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10
Q

cultural

A

beauty tourism

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11
Q

Limiting Factors

A

enviromental factor most often in short supply

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12
Q

Soil LF

A

nitrogen phosphorous potassium

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13
Q

open ocean

A

iron sometimes

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14
Q

freshwater lakes and rivers

A

phosphorous

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15
Q

bags

A

salinity

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16
Q

the fish tank

A

dissolved oxygen

17
Q

desert plants

A

water

18
Q

resistance

A

ability to remain unchanged when being subjected to disturbance

19
Q

resilience

A

ability and rate of an ecosystem to recover from a disturbance and return to its pre disturbed state

20
Q

fitness

A

ability to survive and reproduce

21
Q

climax community

A

stable plants and animals end result of succession

22
Q

end-ordovician

A

uplift of the appalachians makes a severe ice age

23
Q

late devonian

A

algal bloom sucks o2 suffocated sea life

24
Q

end permian

A

siberian eruption temps surged oceans acidified - worst one

25
Q

end triassic

A

climate change maybe poorly understood

26
Q

end cretaceous

A

asteroid impact

27
Q

HIPPCO

A

habitat destruction
invasive species
pollution
population growth
climate change
overexploitation