Notes-52

Question 0

Life history

Answer 0

Organisms schedule of reproduction & death

Question 1

Cohort

Answer 1

group of individuals of same age

Question 2

Semelparity

Answer 2

Type of life history where organisms invest in growth & development then expend that energy in a single reproductive effort b4 dying

Question 3

Iteroparity

Answer 3

Type of life history where organisms produce fewer offspring at a time over many reproductive seasons

Question 4

ZPG

Answer 4

(zero population growth) per capita birth & death rates are =

Question 5

N

Answer 5

Population size

Question 6

t

Answer 6

Time

Question 7

B

Answer 7

Absolute number of births during time interval

Question 8

D

Answer 8

Absolute number of deaths during time interval

Question 9

r

Answer 9

• Per capita population growth rate

- determines if population is growing or declining

Question 10

r max

Answer 10

intrinsic rate of increase- max population growth rate

Question 11

K

Answer 11

carrying capacity- max stable population size that particular environment can support over relatively long time period

Question 12

intraspecific competition

Answer 12

reliance of 2 or more individuals of same species on same limited resource

Question 13

demographics

Answer 13

stats that describe population size, age structure, density, distribution, & other factors

Question 14

Population size

Answer 14

number of individuals in population

Question 15

Age structure

Answer 15

number of individuals in ea. of several age categories

Question 16

Population density

Answer 16

number of individuals in specified portion of a habitat

Question 17

Population distribution

Answer 17

pattern in which individuals are dispersed in their habitat

Question 18

Quadrats

Answer 18

sampling areas of same size & shape

Question 19

biotic potential

Answer 19

max possible per capita rate of increase for its species

Question 20

r-selection

Answer 20

selection favors traits that max number of offspring

Question 21

K-selection

Answer 21

selection for traits that improve offspring quality

Question 22

total fertility rate (TFR)

Answer 22

average number of children born to woman of population during their reproductive years

Question 23

demographic transition model

Answer 23

describes how population growth rate changes as country becomes more developed

Question 24

limiting factor

Answer 24

any essential resource in short supply

Question 25

density dependent factors

Answer 25

lower reproductive success & worsens as population increases

Question 26

density independent factors

Answer 26

unrelated to population size, disasters are an example