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REM611S - RANGELAND ECOLOGY AND MAN - 2ND OPP - JULY 2023 |
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nAmI BIA un IVERSITY
OF SCIEnCE Ano TECHn OLOGY
FACULTYOF HEALTH,NATURALRESOURCESAND APPLIEDSCIENCES
SCHOOLOF AGRICULTUREAND NATURALRESOURCESCIENCES
DEPARTMENT OF NATURALRESOURCESCIENCES
QUALIFICATION: BACHELOROF NATURAL RESOURCESMANAGEMENT
QUALIFICATION CODE: 07BNRS
COURSECODE: REM611S
LEVEL: 7
COURSENAME: RANGELANDECOLOGYAND
MANAGEMENT
DATE: JULY 2023
DURATION: 3 HOURS
MARKS: 150
SECONDOPPORTUNITY/SUPPLEMENTARYEXAMINATION QUESTION PAPER
EXAMINER(S) Ms. E. N. Nghalipo
MODERATOR: Mr. R. Kavari
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. Calculator
THIS QUESTION PAPERCONSISTSOF 4 PAGES(Excluding this front page}
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QUESTION 1
Describe the following terms and phrases fully, as applied to Rangeland Ecology and
Management.
fl Carrying capacity
(2)
1.2 Stocking rate
(2)
1.3 Decreaser grasses
(2)
1.4 Plant Succession
(2)
1.5 Prescribed Fire
(2)
1.6 Ground fire
(2)
1.7 Desertification
(2)
1.8 Bush encroachment
(2)
1.9 National Park Management Plan
(2)
1.10 Root cause analysis
(2)
[20]
QUESTION 2
2.1 Discuss the current status and trends of the Namibian rangelands, giving relevant
(10)
examples, explain factors contributing to its state.
2.2 What does the current status of the Namibian rangelands mean in terms of the
(10)
socio-economic aspect of the country?
[20]
QUESTION 3
3.1 What are the main objectives for assessing veld/rangeland conditions?
(5)
3.2 List 5 common bush encroacher species in Namibian rangelands.
(5)
[10]
QUESTION 4
4.1 You are the newly appointed Warden of Etosha National Park. You are given three
(5)
years of veld monitoring data for one habitat type and are required to interpret
them.
The data you have are as follows:
Results of 200-point step-point survey for the tree and woodland Savanna habitat
type:
Year
2016
Decreaser
90
Increaser I
50
Increaser II
a
20
Increaser II
b
20
Increaser II c
20
2
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12017 180
8 100
Use the Ecological Index Method to compare veld condition for the tree and
woodland savanna between 2016-2017-2018.
[15]
QUESTION 5
5.1 Explain the following terms and the consequences of each and how can they be
prevented in communal areas?
a) Overstocking
b) Overgrazing
(15)
[15]
QUESTION 6
6.1 Using a sketch/diagram to illustrate, explain the ecological succession process.
(10)
[10]
QUESTION 7
7.1 Landscape Function Analysis (LFA) is a widely recommended approach for
(8)
rehabilitation work in rangelands, mining industry and conservation. Explain why
this approach is recommended.
7.2 What aspects does LFA assess?
(2)
[10]
QUESTION 8
8.1 Fire behaviour is influenced by different factors. Mention five factors, and briefly
(5)
explain how these factors influence fire behaviour.
8.2 Describe the factors that determine vegetation recovery after fire.
(6)
8.3 Differentiate between a head fire and a backfire.
(4)
[15]
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QUESTION 9
During a road strip count, visibility distance is recorded at 100m intervals, and the
distances are listed in the table below.
Sample Width
(m)
1
10
2
10
3
35
4
22
5
20
6
30
7
15
8
20
9
25
10
10
9.1 Explain why game count is an important aspect of wildlife management.
(2)
9.2 During which types of wildlife surveys is the MSV used?
(2)
9.3 Calculate the mean strip visibility from measurements that were taken in a study area (2)
and are listed in the table above. ·
9.4 What is the length of the transect along which these measurements were taken? Show (2)
your calculations.
9.5 What kind of vegetation type would you expect in this study area?
(2)
[10]
QUESTION 10
10.1 Foot and Mouth Disease is a serious threat to the beef and tourism industry in
Namibia. Explain how this disease is transmitted 1 the carriers, symptoms as well as (10)
the control measures.
[10]
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QUESTION 11
11.1 Littering is one of the problems that NUST main campus is facing. As a Natural
Resource Management student, you have been tasked by the department of
Natural Resource Sciences to find solutions to the problem. Conduct a root cause
analysis on littering problem on NUST campus, clearly outlining the root causes,
contributing factors as well as Corrective actions.
(15)
[15)
Total marks: 150
The END
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