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Hot under the collar: the failure of radio-collars on black rhinoceros Diceros bicornis

Published online by Cambridge University Press:  24 April 2009

Sky K. Alibhai  and
Zoë C. Jewell
Zoë C. Jewell
Affiliation:
Rhinowatch, Sinamatella Camp, P. Bag 5941, Hwange, Zimbabwe
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Abstract

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Radio-collaring is widely used as a monitoring tool in the conservation of the black rhinoceros Diceros bicornis. We examined rates and causes of radio-transmitter collar failure on black rhino in the Sinamatella Intensive Protection Zone (IPZ), Zimbabwe, between September 1993 and February 2000. Two collar designs, hose and strap, were fitted on immobilized rhinos in four main collaring operations. Eighty nine collars were monitored: 28 hose and 61 strap. Within 12 months of placement, all hose collars had failed. Of the strap collars, 73 per cent of those on males and 44 per cent on females had failed within 12 months. Failure rates were significantly higher in males for both collar types. For strap collars older males had higher failure rates than younger males. There was some evidence of a higher failure rate of strap collars during the wet season. Thirteen per cent of strap and 4 per cent of hose collars were removed because of poor transmission; 15 per cent of strap collars were removed because of injury. The implications of collar failure rates and the use of radio-collaring as a routine protection and /or monitoring strategy are discussed.

Keywords

Diceros bicornisradio-collaringrhinocerostelemetryZimbabwe.
Type
Forum
Information
Oryx , Volume 35 , Issue 4 , October 2001 , pp. 284 - 288
Copyright
Copyright © Fauna and Flora International 2001

References

Alibhai, S.K., Jewell, Z.C. & Towindo, S.S. (1996) The Density, Distribution and Ranging of the Black Rhino (Diceros bicornis) in the Sinamatella Intensive Protection Zone, Hwange National Park, Zimbabwe. Report to the Department of National Parks and Wild Life Management of Zimbabwe.Google Scholar
Alibhai, S.K., Jewell, Z.C. & Towindo, S.S. (2001) The effects of immobilization on fertility in female black rhino (Diceros bicornis). Journal of Zoology, 253, 333–345.CrossRefGoogle Scholar
Cunningham, C. & Berger, J. (1997) The Horn of Darkness, Rhinos on the Edge. Oxford University Press, New York.CrossRefGoogle Scholar
Department of National Parks and Wild Life Management of Zimbabwe (1993) Black Rhino Conservation Project – Emergency Plan 1993. Report of the Department of National Parks and Wild Life Management of Zimbabwe.Google Scholar
Hilton-Taylor, C. (Compiler) (2000) 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland & Cambridge, UK.Google Scholar
Hitchins, P.M. (1970) Field criteria for ageing immature black rhinoceroses, Diceros bicornis L. Lammergeyer, 12, 48–55.Google Scholar
Hitchins, P.M. (1978) Age determination of the black rhinoceros (Diceros bicornis Linn.) in Zululand. South African Journal of Wildlife Research, 8, 71–80.Google Scholar
Hofmeyr, M. (1998) Comparison of four different radio-transmitter attachments on black rhino in Madikwe Game Reserve (June 1996-October 1998). Pachyderm, 26, 14–24.Google Scholar
Kock, M. & Atkinson, M. (1993) Report on Dehorning of Black (Diceros bicornis) and White (Ceratotherium simum) Rhinoceroses in Zimbabwe. Report by the Department of National Parks and Wild Life Management of Zimbabwe.Google Scholar
SAS Institute (1995) JMP Statistics and Graphics Guide. SAS Institute, Cary, NC, USA.Google Scholar
Veterinary Unit (1995) Immobilisation, Dehorning, Radio-collaring/Monitoring, and Health Problems of Black and White Rhinoceros in the Matobo, Sinamatella and Matusadona Intensive Protection Zones, 1994. Report by the Department of National Parks and Wild Life Management of Zimbabwe.Google Scholar
Veterinary Unit (1996) Immobilisation and Radio-collaring of Black Rhinoceros in the Sinamatella Intensive Protection Zone (IPZ), Hwange National Park and Matusadona National Park IPZ. A report. Report by the Department of National Parks and Wild Life Management of Zimbabwe.Google Scholar