Lecture 1-4 Flashcards Preview

Lecture 7 Bio 228 > Lecture 1-4 > Flashcards

Flashcards in Lecture 1-4 Deck (30):
1

Def: Ecology

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

2

Ecosystem functioning is described by

Productivity

3

Productivity

Rate of increase of biomass

4

Realm of ecology

individual organisms- the biosphere

5

After damage ecosystems go through

succession

6

Phenotypic plasticity

allows acclimatization of a genotype to stress

7

Resistance stability

ability of an ecosystem to resist disturbance and maintain its service

8

Resilience stability

ability of an ecosystem to recover

9

Eoclogical energetics

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

10

Photosynthsis

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

11

Chlorophyl

Greem

12

Cartotenoids

Orange

13

Xanthophylls

Yellow

14

Anthocyanins

Red

15

Absorbed energy is dissipated by - reradiation of

longer wave infrared energy

16

Second law of thermodynamics

Life requires incessant input of energy
energy is required to create order

17

Rubisco

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

18

Gross primary production

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

19

Net primary production

GPP- metabolism Measured in accumulation of biomass

20

Standing crop

Accumulated production of ecosystems expressed as dry mass per area

21

Food chain is

linear respresntation of feeding

22

Herbivors Assimilate

10% of energy of their food

23

Carnivores assimilate

20% of energy of their food

24

Food web is a representation of all

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

25

Macro nutrients

CHO

26

Micro nutrients

Cu,Mg,Mo,Ni

27

Lingin is and needs?

Supports plants walls need Cu

28

When there is no lingin whathappens

lodging= flattend patches

29

Alleopathy

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

30

Hydrosere

area of open water gradually filling in with vegetation= terrestrialization