BIO 1320 Colombia Southern Humans: Destroyers of Ecosystems questions
BIO 1302 UNIT 5
JOURNAL
- Instructions
Watch the following video segment titled “Humans: Destroyers of Ecosystems”:
New Atlantis (Producer). (2002). The sixth extinction: The human role [Video file]. Retrieved from https://libraryresources.columbiasouthern.edu/logi…
Click here for a transcript of this video segment. How much time did you spend outside as a child/teenager? Describe your experiences with forestland or other natural environments. Are those areas still in their natural state? Even if you have not spent much time outdoors, have you seen natural areas become fragmented due to land-use change (housing developments, industry, clear-cutting, etc.)? Consider the benefits and services provided by natural lands (clean water, air, biodiversity, etc.). How does the loss of forests and other natural lands affect you personally? Give specific examples.
Your journal entry must be at least 200 words. No references or citations are necessary.
UNIT 5 ASSESMENT QUESTIONS
Question 1
Which of the following increase connectivity between patches?
Edge effects |
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Matrixes |
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Boundaries |
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Corridors |
Question 2
A set of local populations that are linked by the dispersal of multiple, potentially interacting species is referred to as a(n):
ecotone. |
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archipelago. |
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metapopulation. |
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metacommunity. |
Question 3
Which of the following are late successional species?
Trees |
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Grass |
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Weeds |
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Forbs |
Question 4
According to Grime, which strategy is followed by stress-tolerant species?
C strategy |
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S strategy |
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R strategy |
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T strategy |
Question 5
The number of species within a community is usually greatest when:
a disturbance occurs. |
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a low frequency of disturbance occurs. |
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an intermediate frequency of disturbance occurs. |
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a high rate of disturbance occurs. |
Question 6
Match the question to the correct answer.
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Question 7
Assuming primary succession, list the following plant groups in order from early-successional to late-successional.
shade tolerant trees
shrubs
lichen
shade-intolerant trees
grasses/herbaceous plants
Question 8
Explain the intermediate disturbance hypothesis as it relates to successional stages and species diversity.
Your response should be at least 75 words in length.
Question 9
Explain the difference between the organismal concept of communities and the individualistic continuum concept. Which do you think more accurately describes real communities, and why?
Your response should be at least 200 words in length.