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CSB801-CONSERVATION BIOLOGY -1ST OPP- JUNE 2024 |
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nAm I BI A u n IVE RSITV
OF SCIEnCE Ano TECHnOLOGY
Faculty of Health, Applied Sciences and Natural Resources
School of Agriculture and Natural Resources
Department of Natural Resources Sciences
QUALIFICATION : Bachelor of Natural Resource Management Honours
QUALIFICATION CODE: 08BNRH
LEVEL: 8
COURSE: Conservation Biology
COURSE CODE: CSB810S
DATE: June 2024
DURATION: 3 (three) hours
MARKS: 100
EXAMINER(S)
FIRST OPPORTUNITY EXAMINATION QUESTION PAPER
Dr T. Nzuma
MODERATOR: Prof. H. Ndagurwa
INSTRUCTIONS
1. Answer ALLthe questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLEMATERIALS
1. Examination question paper
2. Answering book
3. Calculator
THIS QUESTION PAPER CONSISTS OF 2 PAGES (Excluding this front page)
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Question 1
[20)
Provide definitions for the following terms (2 marks each):
a) Biodiversity
b) Conservation Biology
c) Habitat Fragmentation
d) Anthropocene
e) Simpson's Diversity Index
f) Species Richness
g) Carrying Capacity (K)
h) Environmental Stochasticity
i) Extinction Vortex
j) Island Biogeography
Question 2
[30)
a) Explain how climate change impacts biodiversity and mention specific species affected.
[10]
b) Discussthe role of genetic diversity in conservation strategies.
[10]
c) Describe the principle of "Species-area relationships" and its importance in conservation.
[10]
Question 3
[25)
a) Calculate the Simpson's Index of Diversity for each community and show all your workings.
[15]
You are provided with the following population data for two different communities, Thorn Bushland and
Mopane Woodland. Each community has a total of 300 individuals distributed among various species as
follows:
• Thorn Bushland:
• Species A: 70
• Species B: 60
• Species C: 50
• Species D: 40
• Species E: 30
• Species F: 20
• Species G: 20
• Species H: 10
• Mopane Woodland:
• Species A: 100
• Species B: 80
• Species C: 60
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• Species D: 40
• Species E: 20
b) Basedon the Simpson's Index values calculated for Thorn Bushland and Mopane Woodland:
[SJ
• Interpret what the indices tell you about the biodiversity in each community.
• Which community is more diverse and why?
c) Considering the Simpson's Index of Diversity values you calculated:
[SJ
• Suggest potential management strategies that could be implemented in Mopane Woodland to
increase its species diversity to levels closer to those observed in Thorn Bushland.
• Discussthe potential benefits and challenges of your proposed strategies.
Question 4
[25J
Hardin proposed that controlling human population through "mutual coercion, mutually agreed upon"
was essential to avoid environmental degradation. Discuss.
THEEND
Total Marks: 100
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