chp. 53 vocab

Question 1

density independent

Answer 1

a birth or death rates that doesn’t change with population density

Question 2

age structure

Answer 2

relative number of individuals of each age in the population

Question 3

exponential growth

Answer 3

unrestricted growth of a population of organisms, occurring when resources in its habitat are unlimited

Question 4

mark-recapture method

Answer 4

portion of population captured, marked, and released. Then a portion later captured and amount marked decides density

Question 5

r-selection

Answer 5

a population that has a shorter lifespan and produce many offspring have exponential growth

Question 6

carrying capacity

Answer 6

the maximum population size that a particular environment can sustain

Question 7

dispersion

Answer 7

pattern of spacing among individuals within boundaries of the population

Question 8

immigration

Answer 8

influx of new individuals to an area

Question 9

population

Answer 9

a group of individuals of a single species living in the same general area

Question 10

survivorship curve

Answer 10

graphic method of representing the data in a life table; a plot of the proportion on numbers in a cohort(group of individuals) still alive at each age

Question 11

density

Answer 11

number of individuals per unit area or volume

Question 12

ecological footprint

Answer 12

the total land and water area required by each person, city, or nation to produce all the resources it consumes and to absorb all the waste it generates

Question 13

k-selection

Answer 13

populations that have longer lifespans and produce fewer offspring have logistic growth

Question 14

population dynamics

Answer 14

studying complex interactions between abiotic and biotic factors that cause variation in the size of populations

Question 15

territoriality

Answer 15

defense of a bounded physical space against encroachment by other individuals

Question 16

density dependent

Answer 16

a death rates that rises as population density rises

Question 17

emigration

Answer 17

movement of individuals from an area

Question 18

logistic growth

Answer 18

when the growth rate decreases as the population is reaching carrying capacity

Question 19

population ecology

Answer 19

study of populations in relation to their environment

Question 20

zero population growth

Answer 20

when birth and death rates equal each other