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Lecture 7 Bio 228 > Lecture 1-4 > Flashcards

Lecture 1-4 Flashcards

1
Q

Def: Ecology

A

The study of the abundance and distrubution of organisms and the abiotic and biotic interactions that determine them

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2
Q

Ecosystem functioning is described by

A

Productivity

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3
Q

Productivity

A

Rate of increase of biomass

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4
Q

Realm of ecology

A

individual organisms- the biosphere

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5
Q

After damage ecosystems go through

A

succession

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6
Q

Phenotypic plasticity

A

allows acclimatization of a genotype to stress

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7
Q

Resistance stability

A

ability of an ecosystem to resist disturbance and maintain its service

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8
Q

Resilience stability

A

ability of an ecosystem to recover

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9
Q

Eoclogical energetics

A

the study of fixation transfer, and storage of energy by ecosystem components

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10
Q

Photosynthsis

A

CO2+H2O-y->CH2O+O2 y=light

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11
Q

Chlorophyl

A

Greem

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12
Q

Cartotenoids

A

Orange

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13
Q

Xanthophylls

A

Yellow

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14
Q

Anthocyanins

A

Red

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15
Q

Absorbed energy is dissipated by - reradiation of

A

longer wave infrared energy

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16
Q

Second law of thermodynamics

A

Life requires incessant input of energy

energy is required to create order

17
Q

Rubisco

A

Catalyses the fixation of CO2 in photosynthesis (most abundant protien on earth and slowest)

18
Q

Gross primary production

A

Total amount of energy fixed (part is used by their matabolism)

19
Q

Net primary production

A

GPP- metabolism Measured in accumulation of biomass

20
Q

Standing crop

A

Accumulated production of ecosystems expressed as dry mass per area

21
Q

Food chain is

A

linear respresntation of feeding

22
Q

Herbivors Assimilate

A

10% of energy of their food

23
Q

Carnivores assimilate

A

20% of energy of their food

24
Q

Food web is a representation of all

A

feeding interactions. It expresses connections amound the food chains in the ecosystem

25
Q

Macro nutrients

A

CHO

26
Q

Micro nutrients

A

Cu,Mg,Mo,Ni

27
Q

Lingin is and needs?

A

Supports plants walls need Cu

28
Q

When there is no lingin whathappens

A

lodging= flattend patches

29
Q

Alleopathy

A

organism produces one or more bio chemicals that influence the growth, survival and reproduction of other organisms

30
Q

Hydrosere

A

area of open water gradually filling in with vegetation= terrestrialization

Lecture 7 Bio 228 (6 decks)

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