1. Population Dynamics

2. Bellringer (10min)

3. 1)Why did China establish its “One Child Policy”?
2)Since China has decided to end its “one Child Policy” what is likely to happen to the population size in china?

4. Population Dynamics
Write only what is in RED

5. Population: all the individuals of a species that live together in an area

6. Input Three Key Features of Populations
Size: # of individuals in an area
Density: measurement of population per unit area
Dispersion: spacing relative to each other
(clumped, even/uniform, random)
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.

7. Three Key Features of Populations
Growth Rate = Birth Rate (natality) - Death Rate (mortality)
How many individuals are born vs. how many die
Birth rate (b) − death rate (d) = rate of natural increase (r).
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.

8. POST-REPRODUCTIVE
REPRODUCTIVE
PRE-REPRODUCTIVE

10. You decide!

11. 4 Factors that affect density
1. Immigration- movement of individuals into a population
2. Emigration- movement of individuals out of a population
1)Immigration: Moving in
2)Emigration: Moving out

12. 4 Factors that affect density
3. Density-dependent factors- Biotic factors that have an increasing effect as population size increases
  Ex. disease
competition
parasites

13. 4 Factors that affect density
4. Density-independent factors- Abiotic factors that affect populations regardless of their density
  Ex. temperature
storms
habitat destruction
drought

14. Factors That Affect Future Population Growth
Immigration + + -
Population
Mortality
Natality -
Emigration

15. Three Key Features of Populations
3. Dispersion: describes their spacing relative to each other
clumped
even or uniform
random
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.

16. clumped even (uniform) random
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.
random

17. Population Dispersion

18. Other factors that affect population growth
Limiting factor- any biotic or abiotic factor that restricts the existence of organisms in a specific environment.
EX.- Amount of water
Amount of food
Temperature

19. Limiting Factor- Zone of Tolerance
Few organisms present
None
Few organisms present
None
Many organisms present
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.

20. Other factors that affect population growth
Carrying Capacity- the maximum population size that can be supported by the available resources
There can only be as many organisms as the environmental resources can support
Although several species may share a habitat they each have their own niche. A niche is a very narrow range where a species fits within a habitat.

22. Growth
Exponential Growth: Increase in number or size, at a constantly growing rate (J shaped curve).
Logistic Growth: Levels off when the carrying capacity is reached (S shaped curve).

23. J-shaped curve (exponential growth)
DRAW AND LABEL:
N u m b e r
J-shaped curve (exponential growth)
Carrying Capacity (k)
S-shaped curve (logistic growth)
Ok so
Time

24. Human Population Growth

25. Human Population Growth

26. Output In your notebook, graph the data below:
Year
2007
2008
2009
2010
Deer population
1986
2200
1850
1450
Panther population
192
212
200
160
What should the x-axis be?
What should the y-axis be?
What should the scale of the y-axis be?
How should you plot the points?
What should the x-axis be? Time in years
What should the y-axis be? Number of panthers (right side) and Number of deers(left side).
What should the scale of the y-axis be? 600s deer, 50s panther.
How should you plot the points? Determine the (x, y) coordinate using the year (x) and the # of panthers (y) and placing a dot at that point 26

27. What should the x-axis be? Time in years
What should the y-axis be? Number of panthers (right side) and Number of deers(left side).
What should the scale of the y-axis be? 600s deer, 50s panther.
How should you plot the points? Determine the (x, y) coordinate using the year (x) and the # of panthers (y) and placing a dot at that point 27

28. We Do (25min) Remain in your assigned lab station!
Walking around results in a grade of F!!!
Work diligently on your reading assignment. Unfinished work will NOT be homework.
NO CELLPHONES, if caught using a phone student’s score will be lowered by 1 letter grade.
Raise your hand once you have reached the Independent Practice section.

29. Independent Practice (15min)
Voice Level: SILENT
If talking points will be deducted from student’s grade.
Work independently and diligently to finish your Independent Practice.
Raise your hand if you have a question or have finished your work.

30. Exit Ticket (15min) Voice Level: SILENT
If talking points will be deducted from student’s grade.
Once finished, raise your hand to inform your instructor.