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CSE621S-CONSERVATION ECOLOGY 2-2ND OPP- JAN 2025 |
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n Am I BI A u n IVER s I TY
OF SCIEnCE Ano TECHnOLOGY
FACULTYOF HEALTH,NATURAL RESOURCESAND APPLIEDSCIENCES
SCHOOL OF AGRICULTURE AND NATURAL RESOURCE SCIENCES
DEPARTMENT OF NATURAL RESOURCES SCIENCES
QUALIFICATION: BACHELOR OF NATURAL RESOURCES MANAGEMENT
QUALIFICATION CODE: 07BNRS
COURSE CODE: CSE621S
LEVEL: 7
COURSE NAME: Conservation Ecology 2
DATE: JANUARY2025
DURATION: 3 HOURS
MARKS: 150
EXAMINER(S)
SECOND OPPORTUNITY EXAMINATION QUESTION PAPER
Ms. Elise Nghalipo and Mr. Jeremia K.L.Amutenya
MODERATOR: Mr. Helmuth Tjikurunda
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLEMATERIALS
1. Examination question paper
2. Answering book
3. Non-Programmable Calculator
THIS QUESTION PAPER CONSISTS OF 2 PAGES (Excluding this front page)
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QUESTION 1: Terminology
Write short notes to define or explain the following ecological terms:
1.1 Ecological niche
(2)
1.2 Fire Intensity
(2)
1.3 Habitat loss
(2)
1.4 Ecological disturbance
(2)
1.5 Population dynamics
(2)
1.6 Species Distribution Modelling
(2)
1.7 Keystone species
(2)
1.8 Carrying capacity
(2)
1.9 Desertification
(2)
1.10 Rehabilitation
(2)
[20]
QUESTION 2: Terminology
Explain the difference between the following ecological terms.
2.1 Fire head vs. Fire flank
(2)
2.2 Equilibrium dynamics and Non-equilibrium dynamics
(2)
2.3 Stochastic vs. Deterministic
(2)
2.4 population size vs. population density
(2)
[8]
QUESTION 3: Ecosystem Health and Management
3.1 Explain how the concept of ecosystem health and management can b be used in the
following sectors:
a) Environmental impact Assessment
(4)
b) Conservation management
(4)
c) Climate change adaptation
(4)
[12]
QUESTION 4: Dryland Ecology and Habitat Suitability
4.1 Discuss ways in which biodiversity is affected by climate change.
(9)
4.2 True or false: the Kaokoveld Centre of Endemism will most likely not experience
(1)
significant species loss as a result of climate change.
4.3 Discuss the importance of habitat suitability modelling.
(10)
[20]
QUESTION 5: Population Ecology and Management
5.1 Explain the concept of carrying capacity and its relationship with population density. (8)
5.2 A population of 50 sable was introduced into Waterberg National Park. In the first (12)
year, 13 were born and 5 died. Calculate the size of the population after 10 years,
assuming a constant growth rate based on the natalities and mortalities of the first
year.
Show all calculations.
[20]
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QUESTION 6: Disturbance Ecology
6.1 Briefly explain how the theory of the Intermediate Disturbance Hypothesis can be (22)
applied and used in the effective management of Protected Areas (PAs) in Namibia,
especially a park-like Khaudum.
6.3 Discuss the significant role that fire plays in a savanna ecosystem.
(5)
6.3 List three (3) types of fires prominent in a savanna ecosystem.
(3)
[30]
QUESTION 7: Landscape Ecology
7.1 You have been appointed as a Control Warden within the Ministry of Environment, (15)
Forestry and Tourism, how would you build/initiate a flourishing landscape, using
lessons learned from other landscapes in the country?
7.2 What are the key challenges of managing Landscapes in Namibia as per the Guest
(5)
lecture (Ms Monika Shikongo)?
[20]
QUESTION 8: The ecology of a changing world
8.1. Mention the main causes of land degradation. Clearly explain the measures you will put
in place to curtail the devastating consequences of land degradation.
(10)
8.2. Explain how an alien invasive species, such as Pennisetum setaceum, may influence (10)
biodiversity negatively.
[20]
END OF QUESTION PAPER
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