Download NAME___________________________ UNIT 8: Chapter 6

NAME___________________________
UNIT 8: Chapter 6 Population and Community Ecology:
Objectives:
Discuss the ways in which population sizes change.
Describe species interactions and the roles of keystone species.
Discuss the process of ecological succession.
Discuss species richness of a community.
Notes:
READ!!!! (I will cover this chapter fast.)
Your own notes: pages 150-172
New England Forests pg 149-150 (Compare and Contrast to Easter Island)
Terms:
Community
K-selected species
Population ecology
r-selected species
Age structure
Survivorship curves
Density dependent factors
Metapopulations
Limiting resources
Predation
Carrying capacity (K)
Mutualism
Density-independent factors
Commensalism
Exponential growth model
Keystone species
J-shaped curve
Primary succession
Logistic growth model
Secondary succession
S-shaped curve
Theory of island biogeography
Overshoot die off
Assignment(s):
Multiple Choices page 174-176 #1-12
Good Buddies game (chart notes)
Free Response Question (you may need to look over Unit 1 notes as a review)
Score __________________/75
The California Department of Fish and Game is developing a plan to connect mountain
“habitat islands” that are separated by open areas of flat, arid land in the deserts of
southeastern California. These mountain areas are habitats for desert bighorn sheep (Ovis
Canadensis), which move extensively among the islands through habitat corridors. The
habitat corridors provide opportunities for recolonization, seasonal migration, and
maintenance of genetic variation among the metapopulation of desert bighorn sheep.
(a) Explain what is meant by a metapopulation and how it relates to the desert bighorn
sheep. (1 point)
(b) Identify two density-dependent factors and one density-independent factor that could
affect the populations of desert bighorn sheep. (3 points)
(c) Explain the consequences to the desert bighorn sheep population if the plan to connect
the mountain habitat islands is not implemented. (2 points)
(d) Explain how the theory of island biogeography applies to the mountainous areas of
southeastern California. (4 points)