 |
CSB810S - CONSERVATION BIOLOGY -1ST OPP - JUNE 2023 |
|
|
1 Page 1 |
▲back to top |
nAmlBIA UnlVERSITY
OF SCIEn CE Ano TECHn OLOGY
FACULTYOF HEALTH, NATURAL RESOURCESAND APPLIEDSCIENCES
SCHOOL OF AGRICULTURE AND NATURAL RESOURCE SCIENCES
DEPARTMENT OF NATURAL RESOURCES SCIENCES
QUALIFICATION : BACHELOR OF NATURAL RESOURCES MANAGEMENT HONOURS
QUALIFICATION CODE: 08BNRH
COURSE: Conservation Biology
LEVEL: 8
COURSE CODE: CSB810S
DATE: June 2023
DURATION: 3 {three) hours
MARKS: 100
EXAMINER(S)
FIRST OPPORTUNITY EXAMINATION QUESTION PAPER
DrT. Nzuma
MODERATOR: Prof. H. Ndagurwa
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLE MATERIALS
1. Examination question paper
2. Answering book
3. Calculator
THIS QUESTION PAPER CONSISTS OF 2 PAGES {Excluding this front page)
|
|
2 Page 2 |
▲back to top |
Question 1
[20)
Define the following ecological terms, using examples.
1.1 Genetic stochasticity
[2]
1.2 Carrying capacity
[2]
1.3 Demographic trends
[2]
1.4 Genetic diversity
[2]
1.5 Habitat restoration
[2]
1.6 Keystone species
[2]
1.7 Population conservation
[2]
1.8 Sustainable use
[2]
1.9 Threatened species
[2]
1.10 Wildlife corridor
[2]
Question 2
[30)
a} What are biodiversity indices? Describe the Shannon and Simpson's index, their respective
formulas, and how they are used to measure biodiversity.
[20]
b) A community contains the following species and their respective abundances: [10]
2
|
|
3 Page 3 |
▲back to top |
Species
A
B
C
Abundance
50
30
20
Calculate the Shannon and Simpson's index for this community.
Question 3
[20)
What are the principles of conservation biology? Describe each principle and provide an example
of its application in biodiversity conservation.
[20]
Question 4
[30)
a) What are invasive alien species and why are they a threat to biodiversity? Describe the
characteristics of invasive alien species and provide an example of their impact on
ecosystems.
[20]
a) A population of an invasive plant species is introduced to a new environment. The
population grows from 50 individuals to 500 individuals in 10 years. Using the formula r =
ln(Nt/No) / t, what is the annual growth rate of the population?
[10]
THE END
Total Marks: 100
3