quiz 5 Ch 16

Question 1

Community

Answer 1

Interacting species inhabiting a defined area

Question 2

Immunity structure looks at

Answer 2

Abiotic and biotic environment

Question 3

Community structure includes

Answer 3

Number of species
Relative abundance
Species diversity

Question 4

Guild

Answer 4

Organism with same way of making a living

Facilitates looking at large numbers of species

Question 5

Life form

Answer 5

Structure and growth dynamics of plants

Question 6

Preston developed

Answer 6

concept distribution of commonness and rarity.

graphed abundance of species in community as frequency distributions.

result in lognormal distributions

Question 7

lognormal distribution

Answer 7

bell shaped curve

Question 8

two factors to define species diversity

Answer 8

species richness

species evenness

Question 9

species richness

Answer 9

number of species in a community.

see more diversity

Question 10

species evenness

Answer 10

relative abundance

subtly diverse

Question 11

rank abundance curves show

Answer 11

relative abundance and species diversity within a community

Question 12

environmental complexity

Answer 12

heterogeneity increases,

species diversity increases

Question 13

heterogeneity

Answer 13

diversity

Question 14

homogeneity

Answer 14

uniform quality thru out

Question 15

MacArthur warbler

Answer 15

diversity increases as vegetation hight increases

Question 16

disturbance

Answer 16

not average conditions due to various reasons.

discrete killing, diplacement, pr damage of 1 or more individuals, directly or indirectly creates and opportunity for new individual to establish

Question 17

2 characteristics of disturbance

Answer 17

frequency and intensity

Question 18

Connell intermediate disturbance

hypothesis

Answer 18

important for diversity.
high and low levels reduce diversity.
intermediate levels cause higher diversity

Question 19

Connell intermediate disturbance

results

Answer 19

due to various species colonizing between events.

no chance of competitive exclusion

Question 20

biotic disturbance of prairie dogs and NA

Answer 20

make extensive burrow systems and remove vegetation around them.
make area open to colonization

Question 21

relationship between environmental complexity and species diversity is

Answer 21

positive

Question 22

Hutchinson’s study on niches and diversity of phytoplankton communities

Answer 22

simple environments with competition for the same nutrients without competitive exclusion

Question 23

algal niches are defined by

Answer 23

nutrient requirements

Question 24

Tilman study on niches and diversity

Answer 24

freshwater diatoms can coexist depending on silicate: phosphate ratios. live in different areas of microcosms

Question 25

tropical forest diversity is split in 2 ways

Answer 25

large number of species and large number of plant communities.

Question 26

what factors structure a community

Answer 26

heterogenous abiotic (soil, water supply, and elevation)

Question 27

disturbance and diversity in intertidal zone prediction

Answer 27

algae and invertebrates grow on boulders and the level of disturbance depends of boulder size