Tuesday Oct 14th-Week 10
TOPIC: Human Population
DO NOW:
Science of Life
 OBJ : 6-7
Compare and Contrast Exponential growth and
Logistic Growth.
-Discuss EXT assignment
-Go over section 4.2
-Work on Human Population Graph
-EXT packet
-Human Population Graph
ABSENT
AGENDA
EXT: Ecology Packet
DUE DATE: Oct 21st
DW: 4.2 Notes/Graph
***Quiz on TUESDAY
----------------------------------------------------------------------------------------------------------------HANDOUTS to PICK-UP:
TURN IN to ABS box:
SEMINAR 2:
BEFORE/AFTER SCHOOL:
DW-Oh Deer
EXIT: Fill in your level of understanding AND Speculate what factor would cause a
country to have a negative growth rate.
TUESDAY
TUESDAY: ___10__/__14___
OBJECTIVE…#_3-5_____
TOPIC:
Population Dynamics
Daily Work Grade- OH DEER!
DW GRADE:
2 1 0
DO NOW
Q: Compare and contrast
exponential growth and logistic
growth
A: Both measure growth
and have a lag phase. J-no
limiting factors, no
carrying capacity. SLimiting factors & carrying
capacity.
UNIT OBJECTIVES
6---DESCRIBE how humans impact (+/-) biodiversity
7---IDENTIFY how biodiversity is increased / decreased
Vocabulary
 demography
 demographic transition
 zero population growth -- ZPG
 age structure
These should be
done by test day!
Oh Deer 2nd Hour
OH Deer! Number of Deer and Wolves over 30 Years
40
35
Number of Years
30
25
20
# of Deer
# of Wolves
15
10
5
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Number of Deer and Wolves
21
22
23
24
25
26
27
28
29
30
Oh Deer 3rd Hour
OH Deer! Number of Deer and Wolves over 30 Years
50
45
40
Number of Years
35
30
25
# of Deer
# of Wolves
20
15
10
5
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Number of Deer and Wolves
17
18
19
20
21
22
23
24
25
26
Oh Deer 6th Hour
OH Deer! Number of Deer and Wolves over 30 Years
35
30
Number of Years
25
20
Series1
15
Series2
10
5
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Number of Deer and Wolves
20
21
22
23
24
25
26
27
28
29
30
Oh Deer 7th Hour
OH Deer! Number of Deer and Wolves over 30 Years
30
25
Number of Years
20
15
# of Deer
# of Wolves
10
5
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Number of Deer and wolves
19
20
21
22
23
24
25
26
27
28
29
30
4.2 Human Population
WHAT YOU WILL LEARN
-how to explain the trends in human population growth
-how to compare the age structure of representative nongrowing, slowly
growing, and rapidly growing countries
-predict the consequences of continued population growth
MAIN IDEA
Human population growth changes over time
4.2 Human Population
Human Population Growth
 The study of human population size, density, distribution,
movement, and birth and death rates is demography.
4.2 Human Population
Technological Advances
 For thousands of years,
environmental conditions kept the
size of the human population at a
relatively constant number below the
environment’s carrying capacity.
 Humans have learned to alter the
environment in ways that appear to
have changed its carrying capacity.
4.2 Human Population
Human Population Growth
Rate
 Although the human
population is still
growing, the rate of its
growth has slowed.
4.2 Human Population
Trends in Human Population Growth
 Population
trends can be
altered by
events such as
disease and
war.
 Human population
growth is not the same in all countries.
4.2 Human Population
Zero Population Growth
 Zero population growth (ZPG)
occurs when the birthrate equals
the death rate.
 The age structure eventually
should be more balanced with
numbers at pre-reproductive,
reproductive, and postreproductive ages being
approximately equal.
4.2 Human Population
Human Carrying Capacity
 Scientists are concerned
about the human population
reaching or exceeding the
carrying capacity.
 An important factor is the
amount of resources from the
biosphere that are used by
each person.
Weekend Assignment
• Fill out Population Graph (should have class time for
this)
• Complete Ecology Packet
• DUE ON TUESDAY 10/21
EXIT
FILL-IN: level of understanding of today’s objective

EXIT: SPECULATE what factor would cause a
country to have a negative growth rate.