South African Journal of Antarctic Research, No. 4, 1974
maximum of between I 000 and 2 000 animals. As in the case of the mice, a systematic trapping or transect census programme will be required to obtain a reliable estimate of population size. A detailed study of the predator-prey relationships of the cats on Marion Island is required before their impact on the birds can be a!>sessed.
It appears that the mice are one of the major herbivores on the island. and further investigation into this aspect as well as their general ecology would be of great value.
Acknowledgements
The Department of Transport provided facilities and finances for this work. We are grateful to the Department of Transport and to the Mammal Research Institute, Uni- versity of Pretoria, for their support. Thanks are also due to members of the 30th Marion Relief Team ( 1973-1974) who recorded many observations of cats and mice, and to Professor J.D. Skinner and Dr J.A.J. Nel who com- mented on this manuscript.
The Editor acknowledges the assistance of a referee in evaluating this paper.
61
References
Huntley. B.J. Vegetation. In Marion and Pri11ce Ed- ll'ard Islands. Report on the South African Biological all{/ Geological £.\pedirio11, 1965-66. edited by E. M.
van Zinderen Bakker Sr .. J.M. Winterbottom & R.A.
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A.A. Balkema, 1971.
(Received 5 Augu!>t 1974)
South African Members of SCAR Worki ng Groups
Biology Geodesy and
Cartography Geology Glaciology Logistics and
Communications Meteorology Oceanography Solid Earth
Geophysics Upper Atmosphere
Physics
Prof. E.M. van Zinderen Bakker
University of the Orange Free State. Bloemfontein Mr W.C. Watson
Trigonometrical Survey Office. Pretoria Dr L.E. Kent
Geological Survey. Department of Mines, Pretoria.
Dr L.E. Kent
Geological Survey. Department of Mines, Pretoria Mr C .J .J. van Rensburg
Antarctic Section, Department of Transport, Pretoria Dr J .J. Taljaard
Weather Bureau. Department of Transport, Pretoria Dr L. V. Shannon
Sea Fisheries Branch. Department of Industries, Cape Town Dr L.E. Kent
Geological Survey. Department of Mines, Pretoria Mr R.W. Vice
National Institute for Telecommunications Research, CSIR. Johannesburg
62 Suid-Afrikaanse Tydskrif vir Antarktiese Navorsing, No. 4, 1974
South African National Antarctic Research Programmes, 1974
Programme Airglow Aurora Biology
Cosmic Rays
Cartography Geology
Geomagnetism Glaciology Geophysical/
Glaciological Traverses Ionosphere Magnetospheric
Physics Meteorology Oceanography Seismology
Direction of Programme and Data Processing Prof. P. B. Zeeman
Merensky Institute for Physics. University of Stellenbosch. Stellenbosch, 7600 DrG.J. Kuhn
Magnetic Observatory of the CSIR. P.O. Box 32. Hermanus. 7200 Prof. E.M. van Zinderen Bakker
Institute for Environmental Sciences. University of the Orange Free State.
P.O. Box 339. Bloemfontein. 9300 Prof. P.H. Stoker
Department of Physics. Potchefstroom University for C H E. Potchefstroom. 2520 Mr W.C. Watson
Trigonometrical Survey, P.O. Box 62..i. Pretoria. 0001 Dr L.E. Kent
Geological Survey. Private Bag X 112, Pretoria, 0001 Dr G.J. Kuhn
Magnetic Observatory of the CSIR. P.O. Box 32, Hermanus, 7200 Dr L.E. Kent
Geological Survey, Private Bag X 112. Pretoria. 000 I Dr L.E. Kent
Geological Survey. Private Bag XI 12, Pretoria, 000 I
Prof. J.A. Gledhill
Department of Physics, Rhodes University. P.O. Box 94. Grahamstown. 6140 Prof. N.D. Clarence
Department of Physics, University of Natal. King George V Avenue. Durban. 4001 Dr J .J. Taljaard
Weather Bureau. Private Bag X 193. Pretoria, 000 I Dr L. V. Shannon
Sea Fisheries Branch, P.O. Box 251, Cape Town, 8000 Dr L.E. Kent
Geological Survey. Private Bag X 112, Pretoria. 000 I
South African Scientific Committee for Antarctic Research (SASCAR) 1974
Chairman
Secretary Members
Dr. F.J. Hewitt
Deputy President. CSIR, and South African Permanent Representative on SCAR Mr 0.A. van der Westhuysen
Science Co-operation Division. CSIR, P.O. Box 395. Pretoria Prof. C.A. du Toil
Professor of Zoology. University of Stellenbosch Dr J .J. Taljaard
Weather Bureau. Department of Transport Dr J .F. Enslin
Director. Geological Survey, Department of Mines.
Prof. S. P. Jackson
Director, Bernard Price Institute for Palaeontological Research. University of the Witwatersrand
Dr B.C. Jansen.
Chief Director. Veterinary Services, Department of Agricultural Technical Services Dr H.J. Nel
Consulting Geologist. Anglo American Corporation. Johannesburg Prof. l.B. Watt
Department of Surveying. University of the Witwatersrand.
South African Journal of Antarctic Research, No. 4, 197 4
Members of the 15th South African National Antarctic Expedition 197 4-75
Leader
Medical Doctor Senior Mechanics Mechanics Radio Operators
Radio Technician Technician (Electronic
Instruments)
Technician (Radio/Radar) Physicist (Geomagnetism) Physicist (Cosmic Rays) Physicist (Whistlers/
Micropulsations) Physicist (Airglow/
Seismology) Physicist (Ionosphere) Geologists
Surveyor
Senior Technician (Meteorology)
Technicians (Meteorology)
R. van Mazijk V .D. van Deventer C.L. de W. Lambrechts J.A. Stark*
J.P. Scott D. B. Buckley*
H.L.B. Helberg A.P.T. Kuppen S.D. Mandy W.A. Smith H.P. Barnard*
E. Terblanche B.G. Bowers G.R. Linscott C.U. Schulz J.R. Riley J.M. Erasmus*
R.D.J. Gavshon*
M.J. van Schalkwyk*
J.N. van Zyl D .I. Rosewell D.G. Cillie
*Members of Field Party (Leader H. Barnard)
Members of the 31st South African Expedition to Marion Island 1974-75
Leader/Radio Operator Senior Technician
(Meteorology) Technicians
(Meteorology) Radio Technician/
Deputy Leader
Technician (Geomagnetism/
Ionosphere) Male Nurse
Seal Biologist/Mammalogist Ornithologists
Botanists
J. van Wyk G.E. Wolfaard D.D. Waldie R.J. Thorpe A.M. Churchill G.P. Otto
G .M. Tilbury 0.J. Buys P.R. Condy A.J. Williams A.E. Burger A. Berutti V.R. Smith N .J.M. Gremmen
63
64 Suid-Afrikaanse Tydskrif vir Antarktiese Navorsing, No. 4, 1974
Members of the 20th South African Expedition to Gough Island 197 4-75
Leader/Senior Technician (Meteorology)
Radio Operator/Deputy Leader Technicians (Meteorology)
Radio Technician Seal Biologist Male Nurse
W.A. Pretorius D.A. Thornton T.R. Potgieter V .L. Trollip A. Peens V.W. Hugo M.N. Bester J.P.S. van Tonder
Sou th Afri can Representation at International Meetings in 197 4
SCAR Working Group on Meteorology meeting held in Melbourne, January 1974; attended by Dr .J. J. Taljaard of the Weather Bureau.
Antarctic and Southern Hemisphere Aero11omy Year (A SHAY) Pla1111i11g Meeting held in Buenos Aires, June 1974; attended by Prof J. A. Gledhill of Rhodes Uni- versity and Mr R. W. Vice of the National Institute for Telecommunications Research, CSIR.
Symposium on Solar Terrestrial Physics held in Sao Paulo, June 1974: attended by Prof J. A.
Gledhill of Rhodes University and Mr R. W. Vice of the National Institute for Telecommunications Re- search, CSlR.
XVII P/ell{/1)1Meeting ofCOSPAR held in Sao Paulo, June 1974: attended by Dr F. J. Hewitt as SCAR representa- tive.
COSPAR-JAU (International Astronomical Union) Sym- posium on Solar Extreme UV ,X and y Irradiation held in Buenos Aires, June 1974: attended by Dr P. Konig of Potchefstroom University for C.H.E.
Scientific Ballooning and Radiations Monitoring Organi- zation (SBARMO) Meeting held in Sao Paulo, June
1974; attended by Dr P. Konig of Potchefstroom Uni- versity for C.H.E.
Special Committee 011 Solar Terrestrial Physics (SCOS- TEP) Meeting with National Representatives held in Sao Paulo. June 1974: attended by Prof J. A. Gledhill of Rhodes University and Mr R. W. Vice of the Na- tional Institute for Telecommunications Research.
CSIR.
Third SCAR Symposium 011 Antarctic Biology held in Washington. August 1974: attended by ProfE. M. van
Zinderen Bakker of the University of the Orange Free State.
SCAR 13, held in Wyoming, September 1974: attended by Dr F. J. Hewitt of the CSlR. Chairman of SASCAR. SCAR Working Group 011 Biology meeting held in Wyom-
ing, September 1974; attended by Prof E. M. van Zinderen Balcker of the University of the Orange Free State.
SCAR Working Group 011 Upper Atmosphere Physics meeting held in Wyoming, September 1974; attended by Dr F. J. Hewitt of the CSIR.
SCAR Working Group 011 Logistics meeting held in Wyoming, September 1974; attended by Mr C. J. J.
van Rensburg of the Department of Transport.
Preparatory meeti11g for the 8th Consultative Meeting of the Antarctic Treaty Powers held in Oslo, October 1974; attended by Mr B. Mills and Mr C.J.J. van Rensburg of the Department of Transport and Mr Philip, South African Consul-General to New Zealand.
Second Session of the International Co-ordinating Group for the Southern Ocean, held in Buenos Aires, July 1974, attended by Mr G. A. Visser of the Department of Planning and the Environment and Mr C. C. Stav- ropoulos of the National Research Institute for Oceanology, CSIR.
Planning Meeting on Drifting Ocean Buoys (for First GARP Global Experiment) held in Geneva, March 1974; attended by Mr C. C. Stavropoulos of the Na- tional Research Institute for Oceanology, CSIR, and Mr P. J. van der Westhuizen, Scientific Counsellor at the South African Embassy in Paris.
International Meetings to be h eld in 1975
8th C onsultatii·e Meeting of rhe Antarctic Treaty Powers to be held in Oslo. April 1975.
I ntemational U 11io11 cf Geodesy a11d Geophysics ( I UGG) Ge11era/ Assembly to be held in Grenoble, 22 August -
6 September 1975.
Unio11 Radio-Sciemifique I 111ernatio11ale (URS/) General
Assembly to be held in Lima. August 1975.
XVll/ PlenaryMeeti11g ofCOSPAR to be held in Bulgaria, June l 975. Symposium on the use of space techniques for meteorology and climate research to be held in Vienna before the COSPAR Meeting.
