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Kruger National Park

Scientific Services

4th Annual Kruger Network Meeting 2006

Presentations 14-17th March 2006:

DAY 2 - 14th March 2006

Session: Introduction and welcome (Chair: D. Balfour)

08h00

Welcome D. Balfour

08h05

Opening address by head of Kruger National Park. B. Mkhize

08h25

The future of the tree-grass ratio in lowveld savanna. R. Scholes

08h55

Discussion.  

Session: Long-term data (Chair: D. Balfour)

09h00

SAEON Ndlovu Node: a year down the road. D. Balfour

09h30

Thresholds of potential concern as benchmarks in the management of African savannas. K. Duffin

09h40

Do we know enough about the ecological role of large trees to allow them to fluctuate at levels as
implied by some scientists?
H. Eckhardt

09h50

Discussion.  

10h00

TEA  

Session: Long-term data (continued) (Chair: Johan Pauw)

10h30

Spatial dynamics of biodiversity and ecosystem function in a South African savanna: a structural equation modeling approach. S. Andleman

10h40

Using long-term ecological data in Kruger Park: does competition between trees limit maximum woody biomass? W. Sea

10h50

A phytosociological study in the Kruger National Park, south of the Sabie River. L. Mostert

11h00

Discussion.  

11h10

Evaluating large mammal monitoring methods at different scales: implications for diversity indicators J. Cromsigcht

11h25

History and results of aerial line transect surveys using distance sampling in the Kruger National Park: 1998 – 2005. I. Whyte

11h35

“SynBioSys Kruger”: Storing and managing the KNP’s wealth of data as an integrated unit T. Mostert

11h45

Discussion.  

11h55

Biomaterial banking for use in conservation and wildlife management. J. Joubert

12h05

Serum phytosterols and lipids of selected South African fauna. F. O’Neill

12h20

Discussion.  

12h30

LUNCH  

Session: Data management (Chair: Judith Kruger)

14h00

Approaches for automating data management, analysis, and modeling M. Jones

14h30

Discussion  

14h35

Thresholds of Potential Concern (TPC’s): What are they and how the system works to test exceedance. J. Kruger

14h45

Using Kepler scientific workflows to automate thresholds of potential concern (TPC) modeling M. Schildhauer

15h05

The National Center for Ecological Analysis and Synthesis (NCEAS): Promoting Cross-disciplinary Collaboration and the Reuse of Data. J. Reichman

15h15

Discussion  

15h25

TEA  

Session: Mammalian studies (Chair: Ian Whyte)

15h45

The re-introduction of Klipspringer (Oreotragus oreotragus) to Table Mountain National Park. D. Zimmerman

15h55

Highlights from 20 years of research on large carnivores in Kruger National Park. G. Mills

16h15

New methods to determine the diet and movement patterns of lions. C. Tambling

16h25

Discussion  

16h30

Current thinking regarding the distribution and impact of bovine tuberculosis on buffalo populations. P. Buss

16h40

Discussion  

16h50

END OF DAY TWO  

18h30

Andrew Mellon Foundation sponsored conference dinner  

DAY 3 - 15th March 2006

Session: Future implications of landscape associations (Chair: Louise Rademan)

08h00

Wet or dry years? When do trees escape? W. Bond

08h25

Using stable water isotopes to determine the depth of water used by different sizes of savanna trees. E. February

08h40

Exploring the role of water and nutrients in determining savanna structure and function. R. Verweij

08h55

Discussion  

09h05

Fire and nitrogen – what really matters? C. Coetzee

09h15

Hillslope chromatography: Why clay accumulates where it does and its implications for natural resource management. T. Hartshorn

09h25

Using terrain morphology and geochemical/mineralogical provenance to trace the origin of sodic patches in the northern KNP. L. Khomo

09h35

A Geographic Framework for Identifying Hydrological and Biogeochemical Patchiness
in Catenary Landscapes
O. Chadwick

09h45

Discussion  

10h00

TEA  

Session: Future implications of nutrient - landscape associations (Chair: Shaun Levick)

10h30

Plant tissue nutrient status across complex riparian habitats in the Shingwedzi drainage. M. Cadenasso

10h45

Soil carbon and nitrogen contents across contrasting riparian and upland sites in the Shingwedzi drainage. E. Cook

10h55

Relationship between grass quality, productivity and utilization on sodic sites and crests. G. Alard

11h05

Changes in plant available nitrogen with changes in available water in a mesic savanna. T. Keretetse

11h15

Discussion  

11h30

Landscape Patterns in Plant and Soil Micro- and Macro-Nutrient Distributions in the Kruger National
Park: Implications for Management
J. Ratnam

11h45

Nitrogen and phosphorous relationships with productivity, fire and herbivory in savannas: insights from a simple model. M. Sankaran

12h00

Discussion  

12h10

LUNCH  

Session: Landscape function: how will our understanding shape future decisions? (Chair: Hugo Bezuidenhoudt)

14h00

The Savanna Convergence Experiment. A. Knapp

14h10

Linking patterns of vegetation change with underlying processes in northern Kruger. S. Levick

14h25

Does browsing limit tree recruitment? Results and implications of a long-term experiment in Hluhluwe iMfolozi GR. C. Staver

14h35

Short-term growth responses of common grass species to soil moisture and defoliation in the Kruger National Park. A. Swemmer

14h50

Continental- to Landscape-Scale Analyses of Tree Cover in African Savannas. G. Bucinni

14h50

Discussion  

15h00

TEA  

Session: Using fire as a management tool in the future (Chair: Sue van Rensburg)

15h20

Results from the experimental burn plots M Smith

15h30

Practical ways of incorporating variation in fire intensity into fire management of African savannas. N. Govender

15h45

Forest colonization in savannas: A synthesis of fire- plant interaction in savannas. V. Khavhagali

15h55

Clustering of savanna trees as a function of fire and competition T. Groen

16h05

Fire experiments in Hluhluwe iMfolozi Park M. Waldram

16h15

Discussion  

16h30

END OF DAY THREE  

DAY 4: 16th March 2006

Parallel Session 1: Goldfields Auditorium

Session: How herbivores shape the future: the role of elephant (Chair: Mike Peel)

08h00

Elephant impact on vegetation and habitats: are there indirect consequences for other ungulate species? H. Fritz

08h30

Ecological guidelines for managing elephants. N. Owen-Smith

08h45

A framework for understanding elephant effects on biodiversity. R. Grant

09h00

Modeling the consequences of elephant damage on marula trees, KNP. F. Mabuduga

09h10

Discussion  

09h20

Effects of rainfall, predation and age structure on the population dynamics of African Buffalo P. Cross

09h30

Study Abroad programmes: their contribution towards monitoring of elephant utilization. L. Kruger

09h40

Community structure and temporal dynamics of large herbivores in Mkhuze Game Reserve B. Nxele

09h50

Discussion  

10h00

TEA  

Session: How herbivores could shape the future in decision making (Chair: Rina Grant)

10h25

Thresholds, Order-of –magnitude and sustainability in African savannas. M. Peel

10h40

Do artificial waterholes change the way herbivores use the landscape? I. Smit

10h55

Ecological determinants of birth timing in African Buffalo (Syncerus caffer). S. Ryan

11h05

Buffalo of KNP and HUP: a comparative study. B. Greyling

11h15

Discussion  

11h25

Habitat dependency and nutritional ecology of sable antelope. J. Chirima

11h35

The influence of fire on the nutritional ecology of sable antelope in the Kgaswane Mountain Reserve,
North-West Province
F. Parrini

11h45

The effects of nutrients and habitat structure on reproduction and calf survival of roan antelope in different geographical areas in South Africa. J. Van Rooyen

11h55

Discussion  

12h10

LUNCH  

Session: Our water- our future (Chair: Christine Colvin)

14h00

Drying of the Luvuvhu River: examining the roles of land cover change and water extraction with GIS-based hydrologic modeling and remote sensing. T. Gyedu-Ababio

14h10

Changes in vegetation structure along the Sabie River 1990—2004, and predictions for the future. K. Kotschy

14h20

Multi-scaled heterogeneity of a riparian patch mosaics in the Sabie River landscape. M. Parsons

14h30

Ground water patterns in northern KNP C. Colvin

14h45

KNP lion population assessment: How many lions are there in the North? P. Funston

14h50

Introduction of Giraffe outside there historical range alters the distribution of Acacia species. C. Khumalo

14h55

The influence of catena soil water dynamics on the vegetation patch structure on the northern plains. S. Lorentz

15h05

Discussion  

15h15

TEA  

Session: Biodiversity – our future (Chair: Navashni Govender)

15h40

Biodiversity monitoring in Kruger National Park: How reliable are habitat surrogates? A. Andersen

15h55

Testing the concept of using potential habitat aspects as a surrogate for the occurrence of small vertebrate fauna (birds) in the KNP. A. Deacon

16h05

A study of rodent and shrew diversity and abundance in and outside the Nwashitsumbe enclosure site in the Kruger National Park. D. MacFadyen

16h15

The effect of anthropogenic activities to ant composition and the distribution of Lepisiota incise in KNP and its interaction with other ants H. Sithole

16h25

Analysis of environmental impacts of off-road driving and other concessionaire activities. G. Nortje

16h35

Discussion  

16h45

END OF DAY FOUR  

Parallel Session 2: Community hall

Session: Invasion biology (Chair: Thembi Khoza)

08h00

Integrated Control of water hyacinth in KNP. R. Brudvig

08h10

Beyond filling the gaps: advancing the science of invasion ecology using a new conceptual framework. L. Foxcroft

08h20

The effect of competition from the native vegetation on the invasion of C. odorata in Hluhluwe-iMfolozi
Park, South Africa.
M. te Beest

08h30

Interference potential of Parthenium hysterophorus with indigenous grass species. M. van de Laan

08h40

Discussion  

08h50

A new Ceratocystis species from wounds made by elephants on trees in the Kruger National Park. N. Kamgan

09h00

Population structure and insect associations of the fungal pathogen Ceratocystis albifundus in South Africa. R. Heath

09h10

“Snow” in Kruger Park revisited – on the ecological significance of fungal plant parasites. W. Maier

09h20

Discussion  

10h00

TEA  

DAY 5: 17th March 2006

Session: Socio-ecology (Chair: Kevin Moore)

08h00

Understanding social-ecological systems S. Pollard

08h30

Toursim in Greater Limpopo Transfrontier conservation area A. Spenceley

08h45

HIV/AIDS mortality and household reliance on natural resources in Bushbuckridge. W. Twine

09h00

Discussion  

09h10

The insitutions and impacts of community-based avitourism in South Africa. D. Biggs

09h25

Conflicting human interests over the re-introduction of African wild dogs (Lycaon pictus). M. Gusset

09h40

People and Conservation into the future. H. Mmethe

09h50

Cultural Heritage in Kruger – what are we up to? T Madzhuta

10h00

Discussion  

10h10

TEA  

10h35

Use and value of landscapes, flora and fauna by Tsonga communities in the rural areas of Limpopo Province, South Africa. P. Brandon

10h45

Greater Limpopo Transfrontier Park P. Theron

11h00

Research potential in the Transfrontier Park F. Mutepfa

11h15

Discussion  

11h30

Concluding remarks Herbert Prins

12h00

END OF CONFERENCE