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APES > Ecosystem Structure and Population > Flashcards

Ecosystem Structure and Population Flashcards

1
Q

Anthropogenic

A

human-caused chemical weathering

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2
Q

What are the properties of soil determined by

A

Parent Material, Topography, Climate, Organisms, time

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3
Q

What is topography

A

slope, landscape

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4
Q

Friability

A

physical test breakability

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5
Q

Shrink swell

A

physical test change in volume

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6
Q

porosity

A

the rate that water and air can move through between spaces

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7
Q

permeability

A

how fast does water/air go down

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8
Q

PH

A

acidity

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9
Q

Nitrogen

A

Easy leach out
repel soil (-)

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10
Q

Phosphorus

A

Strong root growth
no leach
not deficient

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11
Q

Potassium

A

Fruit, plant growth
break down slow
not deficient

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12
Q

What are extinction rates

A

100 to 10,00% higher

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13
Q

what is biodiversity

A

variety of species
variety of ecosystems

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14
Q

levels of biodiversity

A

Functional
Ecological
Species
Genetic

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15
Q

how to measure biodiversity

A

Richness
Evenness

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16
Q

What is species richness

A

number of species

17
Q

How did the earth become biodiverse

A

Speciation

18
Q

Bottleneck effect

A

reduction in population size due to human or environment

19
Q

Founder effect

A

number of individuals colonize a place and become different

20
Q

what is kcal

A

energy

21
Q

what is m^2

A

area

22
Q

what is yr

A

time

23
Q

what is primary productivity

A

rate of photosynthesis

24
Q

what does high productivity mean

A

high plant growth

25
Q

RL name

A

respiration loss

26
Q

RL definition

A

plants use some of their photosynthesis energy to do cellular respiration (mvmt.) (taxes)

27
Q

GPP name

A

Gross primary productivity

28
Q

GPP definition

A

amt of sun that is captured (total paycheck)

29
Q

NPP definition

A

amt of energy a plant is able to store (take-home pay)

30
Q

Calculate NPP

A

NPP=GPP-RL

31
Q

what is ecological efficiency

A

the 0.4 of 1% that is captured and converted into NPP (biomass)

32
Q

High NPP causes what

A

water availability, high temp, high nutrients

APES (6 decks)

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