SVHS LAB BIOLOGY
Ecology of Communities
READING:
SCIENCE STANDARDS:
OBJECTIVES:
2013-2014
Modern Biology Chapter 21-22 pages 397-408 and 414-423.
Ecology 6a, 6d, 6e, & 6f.
A) Be able to discuss and describe examples of predator– prey relationships and how natural
selection has resulted in organisms being shaped and colored as they are. (Pages 399-400)
B) Discuss two types of mimicry and why it is an advantage for some organisms, such as the King
Snake or certain types of wasps and bees. (Page 400)
C) Explain how competitive exclusion, character displacement, and resource partitioning result from
competition. Give an example of each. (Pages 401-403)
D) Describe how primary succession differs from secondary succession. Explain what type of
succession is occurring on Trinity Mountain after the fire of 1999. Describe the stages that will
occur and what the climax community will look like. (Pages 408-410)
E) Be able to describe the nitrogen cycle as it exists in a typical community. (Pages 373-374)
F) Be able to describe the water cycle using a diagram as it exists in a typical community. (371-372)
VOCABULARY LIST: Parasitism
SCHEDULE:
Predation
Commensalism
Mutualism
Mimicry
Symbiosis
Fundamental Niche
Competitive exclusion
Succession
Realized Niche
Tues 4/29
Lecture:
Lab:
Homework:
Species interactions (P. 399-403)
DVD: Life in the Undergrowth
Read 405-410. Complete objective A, Sec Rev 20.1
Wed 4/30
Lecture:
Lab:
Homework:
Patterns in communities. (P. 405-410)
address objective B.
Read 399-404. Study for Voc Quiz.
Fri 5/2
VOCABULARY QUIZ
Lab:
Aquatic community study pre-lab
Begin Ecology Project
Tues 5/6
Lecture:
Lab:
Homework:
Wed 5/7
Lecture:
Lab:
Homework:
Species Interactions. (Pages 399-404)
Aquatic Community survey
Read pages 371-373. Address objective C in essay form
Biogeochemical cycles. (371-373)
complete aquatic survey
Prepare for midterm Fri 9/21. Address objective D& E in essay form
Fri 5/9
Lecture:
Succession (Pages 408-410)
Lab:
Prepare for Ecology presentation
Complete IANB entries and STUDY FOR TEST Complete Objective F
Tues 5/13
Wed 5/14
Ecology of populations unit test/ presentations
Presentations concluded. Begin ecological problems project
SVHS LAB BIOLOGY
Ecology of Communities Self Study Guide
1- From pages 371-374 titled “Ecosystem Recycling”, be able to;
A) Explain how evaporation, transpiration, and precipitation all play a role in the water cycle.
B) Describe three ways in which animals release water into the environment.
C) Describe how photosynthesis, cellular respiration, and decomposition play a role in the cycle
carbon.
D) Explain how the nitrogen fixation bacteria play a critical role in the nitrogen cycle.
2- From pages
A)
B)
C)
D)
E)
F)
G)
H)
I)
J)
399-404 titled “Species Interactions” be able to;
Explain the term Symbiosis.
Explain the biotic relationship called “Predator – prey”.
Explain how natural selection has resulted in adaptations in both predators and prey.
Explain two types of mimicry and give an example of each.
Define “secondary compounds” found in plants and describe how they give the plant protection.
Define and give an example of competitive exclusion.
Differentiate between fundamental niche and realized niche in terms of competition.
Explain and give an example of “character displacement” and “resource partitioning”.
Define parasitism and contrast endoparasite and ectoparasite.
Contrast the symbiotic relationships termed “mutualism” and “commensalism”
3- From pages
A)
B)
C)
D)
405-407 titled “Patterns In Communities” be able to;
Explain what “species richness” refers to regarding an ecosystem or community.
Describe the type of community that is greatest in species richness.
Explain two hypothesis as to why the tropics are so rich in species.
Explain “species–area effect”. Explain what determines how many species will be found
in an area.
E) Explain how species richness can be effected by disturbances in the communities.
4- From pages
A)
B)
C)
D)
408-410 titled “Successional changes in communities” be able to;
Define the term succession.
Contrast pioneer species with a climax community.
Contrast primary and secondary succession and give an example of each.
Explain why a single successional pathway leading to a climax community rarely occurs in nature.