Transcript Limiting+Factors+&+Carrying+Capacity+Powerpoint

Background Information
What is a Limiting Factor?
 Limiting Factors are…
(two similar definitions)
 conditions of the
environment that
limit the growth of a
species.
 biotic and abiotic
factors that prevent the
continuous growth of a
population.
What is a Limiting Factor?
 Populations would continue to increase if
they had all of the resources they require in
unlimited amounts, but there are always
factors that limit their increase.
 Limiting factors control
population growth.
Let’s list some Limiting Factors!
What is Carrying Capacity?
 Because of these limiting factors, each
ecosystem has a finite capacity for growth
connected to its carrying capacity.
What is Carrying Capacity?
 Carrying capacity is
the number of
individuals of a species
that an ecosystem can
support.
Limiting Factors Facts
 In nature, populations of organisms rarely grow
uncontrolled. Each ecosystem has a carrying
capacity (or number or organisms it can
sustain/support).
 Remember, limiting factors are biotic and abiotic
factors that prevent the continuous growth of a
population.
 Because of limiting factors, the number of
organisms in a population is often well below
carrying capacity.
TODAY’S AGENDA
 1. REVIEWING LIMITING FACTORS AND CARRYING
CAPACITY
 2. CHAPTER 18 REVIEW (Pg. 500-501) Questions 1-28
 ALL ANSWERS MUST BE ANSWERED IN A COMPLETE
SENTENCE, EXCEPT MULTIPLE CHOICE
 If you FINISH, move right on to Ch. 21 REVIEW Pg. 570-
571 (Questions 1-22) THIS IS DUE FRIDAY 9/14… USE
YOUR TIME WISELY!!!