terms

Question 1

which is concerned
with the factors influencing the expansion, decline, or maintenance of populations

Answer 1

population dynamics

Question 2

changes in the density of predator
populations in response to increased prey density

Answer 2

numerical response

Question 3

growth by any population with pulsed reproduction

Answer 3

geometric growth

Question 4

continuous population growth in a unlimited envi

Answer 4

exponential growth

Question 5

as population increase, growth rate eventually slows down

Answer 5

sigmoidal population growth curve

Question 6

population size at which growth stops

Answer 6

carrying capacity

Question 7

given envi. can only support so many particular species

Answer 7

carrying capacity

Question 8

account for the patterns of growth shown by populations as they compete for environmental resources
- by modifying the exponential growth model

Answer 8

logistic model

Question 9

per capital rate of increase

Answer 9

intrinsic rate of increase

Question 10

effects of biotic factors (disease, predation), are often influenced by population density

Answer 10

density-dependent factors

Question 11

abiotic factors (floods, extreme temp.) can exert influence independently

Answer 11

density-independent factors

Question 12

no. of eggs or seeds produced by an organism

Answer 12

fecundity

Question 13

occurs as more than one allele

Answer 13

polymorphic locus

Question 14

_____ itself constitutes an aspect of the plant life history

Answer 14

growth form

Question 15

allocation of energy, time, for the production and care of offspring

Answer 15

reproductive effort

Question 16

per capital rate of increase

Answer 16

r selection

Question 17

carrying capacity of the logistic growth form

Answer 17

K selection

Question 18

study of the timing of ecological events

Answer 18

phenology