Download Aim What is Carrying Capacity ?

What limiting factors
influence carrying
capacity?
Agenda
• Do Now Hand Out
• Mini Lesson and Regents Practice
• Start Carrying Capacity Lab
• Exit Ticket
Example of carrying capacity
• What
determines the
carry capacity of
Yankee stadium?
The amount of
seats
The limiting factor?
• What limits the
amount of
people from
attending a
game?
Amount of seats
Price of seats
Amount of growth of a population
• Rates of birth
• Death
• Immigration
• Emigration
Carry Capacity
• The maximum
population size
of a given
species that an
environment can
sustain
Limiting growth
•Water
•Food
Desert
Limit growth
• Predators
• Decrease in
habitat
• Disease
Limiting factors
Definition
Factor that
causes the
growth of a
population to
decrease
Examples
•
•
•
•
•
Food
Water
Predation
Space
Disease
The size of a mouse population in a
natural ecosystem tends to remain
relatively constant due to
1.the carrying capacity of the
environment
2.the lack of natural predators
3.cycling of energy
4.increased numbers of decomposers
A population of chipmunks migrated to an environment where they had
little competition. Their population quickly increased but eventually
stabilized as shown in the graph.
Which statement best explains why the population stabilized?
1.Interbreeding between members of the population increased the mutation
rate.
2.The population size became limited due to factors such as availability of
food.
3.An increase in the chipmunk population caused an increase in the
producer population.
4.A predator species came to the area and occupied the same niche as the
chipmunks.
The graph provides information about the population of deer in a given
area between 1900 and 1945. Which statement identifies the most
likely reason that the carrying capacity of the area to support deer
decreased between 1925 and 1930?
1.The deer population decreased in 1926.
2.The number of predators increased between 1915 and 1925.
3.The deer population became too large.
4.An unusually cold winter occurred in 1918
The graph shows the changes in two populations in
herbivores in a grassy field. A possible reason for these
changes is that
1.all of the plant populations in this habitat decreased
2.population B competed more successfully for food than
population A did
3.population A produced more offspring than population B
did
4.population A consumed the members of population B
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