Kliprand Recreational Hall, Kakamas

PROGRAMME

15:30-17:00 Registration & Putting up posters

17:00-17:30 Briefing Session

17:30-19:00 Leisure Time

19:00 Cocktails & Dinner

TUESDAY, 15 AUGUST 2000

07:45-08:15 Late Registration

08:15-08:20 Welcome – Klaus Kellner

SESSION 1 : ALTERNATIVES TO NON-SUSTAINABLE PASTORALISM : IMPACTS, MANAGEMENT AND CONSERVATION - (Chairperson: André van Rooyen)

08:20-08:50 Keynote speech: Water-use of invading Prosopis (mesquite) and its implications for ground water resources and ecosystems in the Karoo and Kalahari regions - David le Maitre

08:50-09:10 Groundwater in the arid zones of South Africa – GHL Lindeque

09:10-09:30 Piospheres: Livestock vs Game and the remaining soil moisture - AF van Rooyen

09:30-09:50 Land tenure and land management opportunities affect habitat condition – how can we make practicable recommendations towards more sustainable land use? - J Zeidler

09:50-10:10 Sustainability of rangeland utilisation by nomadic pastoralists in Ethiopia – S Tefera

10:10-10:20 Poster: The quest of pastoralists in the western lowlands of Eritrea – MG Hagos

10:20-10:30 Poster: Grazing practices and natural resource management in a communal area: Leliefontein, Namaqualand – L Debeaudoin

10:30-11:00 TEA / COFFEE

11:00-11:20 Wet season mineral status of soil, natural pasture and cattle blood serum in mid-altitudes of western Ethiopia – L Gizachew

11:20-11:30 Poster: Management practices to alleviate the impact of drought on rangelands in semi-arid regions – GHL Lindeque / HJ Fouché

11:30-11:40 Poster: Impacts of non-selective versus conventional grazing on status and distribution of N, P and OC in Nama karoo soils – T Medinski / P Beukes

11:40-11:50 Poster: Turning prosopis invasions into cash – potential application as flooring material – C Stoltsz

11:50-12:00 Poster: Relationship between tree density and grass dry matter yield in Mopani veld – GN Smit

12:00-12:10 Poster: Factors affecting marula demography in eastern Botswana – N Mosesane

12:10-12:30 The freshwater requirements of supratidal salt marsh – TG Bornman / JB Adams

12:30-12:50 Waterbirds of the Orange River mouth: does the wetland still qualify as a Ramsar site? – MD Anderson / H Kolberg / J Dini / PC Anderson

12:50-13:10 The importance of rivers in maintaining a sustainable environment - KCD Hamman / W Roets

13:10-14:00 LUNCH

SESSION 1 : Continues - (Chairperson : Mark Anderson)

14:00-14:10 Poster: The ichthyofauna of the Oorlogskloof Nature Reserve, Northern Cape, South Africa - AAM Abrahams / WAJ Pretorius

14:10-14:20 Poster: Of rods, reels and longfin eels – an unusual ichthyofaunal record for the Orange River – AAM Abrahams

14:20-14:40 The ecological services of biodiversity in semi-arid landscapes – R Lechmere-Oertel / GIH Kerley / RM Cowling

14:40-15:00 Climate change and plant diversity in the Karoo – GF Midgley / MC Rutherford / WJ Bond

15:00-15:20 Reasons for the conservation of the De Rust section of Mountain Zebra National Park – LR Brown / H Bezuidenhout

15:20-15:30 Poster: The plant species richness of the Mountain Zebra National Park, Eastern Cape – U Pond / BB Beesley / LR Brown / H Bezuidenhout

15:30-15:40 Poster: An objective assessment of relocating the lower Nossob River road in the Kgalagadi Transfrontier Park – JG Castley / H Bezuidenhout / MH Knight

15:40-15:50 Poster: Management units identified on Goegap Nature Reserve – H Rösch

15:50-16:00 Poster: Oranjerivier – erfenis van konflik – PT van der Walt

16:00-16:10 Poster: Community exchange and training in the Suid Bokkeveld: A pilot project to enhance Natural Resource Management – B Koelle / N Oettlé

16:10-16:40 TEA / COFFEE

16:40-17:10 ANNUAL GENERAL MEETING

17:10-17:30 Introduction to Field Trips: Mark Anderson & Piet Nel

19:00 DINNER

07:45-08:00 Collect lunch boxes

08:00 Field trip – Riemvasmaak (4X4 vehicles – if possible).

(Entrance Fee : R25,00 per vehicle plus R5,00 per person)

Tour leaders : Dr Timm Hoffman – NBI

Mr Piet Nel – Consultant

Visit to different agricultural management practices, as well as eco-tourism and other ventures, such as hiking and 4x4 trails in different land tenure system (communal, commercial and conservation).

Conflict management between the different stake holders and policy makers and the involvement of NGO’s, scientists and land users.

Orange River (at Augrabies Falls National Park)

Tour leaders : Mr Mark Anderson & Mr Enrico Oosthuysen

Some of the topics for discussion :

• Overview of river regulation.
• Recreational use of the Orange River, eg river rafting, angling.
• Commercial utilization of the Orange River, such as river rafting, gill-netting, tourism, etc.
• The New Water Act.

There will be two groups which will alternate :

1. A boat trip on the river has been arranged. It will be 3 km long and also entail a 1 km walk.

2. SANP’s Tinus Smith will "entertain" delegates with the history of the Park, mammal introductions, etc.

08:00-10:00 Presentation and discussion session at the Conference venue – Mark Anderson / Enrico Oosthuysen

10:00-10:30 TEA / COFFEE

10:30-12:00 Presentation and discussion session continues

12:00-12:15 Collect lunch boxes

12:50 Departure to Augrabies National Park & Orange River

19:00 BRAAI

THURSDAY, 17 AUGUST 2000

07:45-08:10 Report back on Field Trips

SESSION 2 : GRAZING SYSTEMS AND ECOSYSTEM DYNAMICS - (Chairperson: Nico Smit)

08:10-08:30 The botanical composition of rangelands in the dry Mid-Rift valley of Ethiopia – AG Ebro / Z Sileshi

08:30-08:50 Subsidized destocking for non-sustainable pastoralism : Is it worth trying? – H Hendricks

08:50-09:10 A new approach to animal production – G Olivier

09:10-09:30 A ground truthing method for remotely sensed estimation of rangeland biomass in the semi-arid regions – L Gerber

09:30-09:40 Poster: Predicting grazing capacities from linepoint survey- and phytomass data – PCV du Toit

09:40-09:50 Poster: Effects of fire, rainfall, nutrients and grazing on bush encroachment in semi-arid savanna – T Kraaij

09:50-10:00 Poster: The importance of the optimum number of animals in any grazing system – LF Vorster

10:00-10:10 Poster: Veld degradation and soil-water distribution in a semi-arid grassland – HA Snyman

10:10-10:40 TEA / COFFEE

10:40-10:50 Poster: The effect of localised game concentration on soil organic matter in a semi-arid area – GJ van Rensburg / HA Snyman / K Kellner

10:50-11:00 Poster: A survival strategy of Themeda Triandra forsk. under water stress – IB Oosthuizen

11:00-11:10 Poster: Strange phenomena after heavy rainfalls in arid zones – M de Jager / JD Möhr

11:10-11:20 Poster: Irrigation – Vegetation dynamics on grazing exclosures in the Richtersveld National Park – I Gotzmann

11:20-11:30 Poster: Optimum Grazing Capacity : Small Stock - W vD Botha / W Mellet

11:30-11:40 Poster: Water harvesting in the Kalahari – D von Willert / J Saunders / G Olivier

SESSION 3 : RESTORATION AND REHABILITATION - (Chairperson: Richard Dean)

11:40-12:00 Improve water infiltration for kick-starting karoo restoration - P Beukes

12:00-12:20 The influence of microhabitats on seedling establishment during rehabilitation in Namaqualand – L Simons / N Allsopp

12:20-12:40 The effects of brushpacking on the stabilisation of degraded Kalahari dunes – S Brown / N Allsopp / A van Rooyen

12:40-13:00 Restoration with the aim of sustainability – S de Wet / K Kellner

13:00-13:50 LUNCH

13:50-14:10 Ecorestore – The database for selecting appropriate restoration technologies – K Kellner / D van Niekerk

14:10-14:20 Poster: A study to evaluate rehabilitation methods in the Succulent Karoo, to establish guidelines for mine rehabilitation in arid areas – A Schmidt / SJ Milton / A le Roux

14:20-14:30 Poster: A comparison of germination strategies of 7 perennial Namaqualand species – N Abrahams / MT Hoffman / N Allsopp

14:30-14:40 Poster: Evaluation of restoration technologies applied in the mopaniveld of the Northern Province – L van den Berg / K Kellner

14:40-14:50 Poster: The evaluation of a restoration trial after the control of alien woody vegetation in the Gauteng Province – A Barac / K Kellner

14:50-15:00 Poster: The Organic Block – Successful restoration method or not? - L Buys

15:00-15:10 Poster: Effects of rangeland degradation on herbaceous biomass, mineralizable nutrients and grass nutrients in the southern Kalahari – JA Stone

15:10 PRESENTATION OF AWARDS

15:20 CLOSURE