Effect of supplementary feeding on the social behaviour and distribution patterns of free-ranging southern white rhinoceros

Ivana Cinková 1 , Udo Ganslosser 2  and Petra Kretzschmar 3
  • 1 Department of Zoology and Laboratory of Ornithology, Faculty of Science, 17. listopadu 50, 771 46 Olomouc, Czech Republic
  • 2 Zoologisches Institut und Museum, Johann Sebastian Bach-Str 11/12, 17 489 Greifswald, Germany
  • 3 Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315 Berlin, Germany
Ivana Cinková
  • Corresponding author
  • Department of Zoology and Laboratory of Ornithology, Faculty of Science, Palacký University, 17. listopadu 50, 771 46 Olomouc, Czech Republic
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, Udo Ganslosser
  • Zoologisches Institut und Museum, Johann Sebastian Bach-Str 11/12, 17 489 Greifswald, Germany, Institut für Spezielle Zoologie und Evolutionsbiologie, Erbertstr 1, 07743 Jena, Germany
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and Petra Kretzschmar
  • Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315 Berlin, Germany
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An increasing number of free-ranging southern white rhinos (Ceratotherium simum Burchell 1817) live in fenced and intensively managed reserves. They are often kept in small populations and depend on supplementary feeding in the dry season, which can influence their behaviour and distribution. We studied the distribution and social behaviour of free-ranging southern white rhinos in two smaller reserves in South Africa. In the first reserve, the rhinos (n=13) were supplementary-fed while in the second one, the rhinos (n=8) depended on natural grazing. Following the start of supplementary feeding in the first reserve, the rhinos changed their distribution and concentrated in areas around the feeding places. We observed (79 h of observation) the social behaviour of rhinos at places, where they frequently gathered and the agonistic interactions between them were significantly more frequent at the feeding places (in the first reserve) than at the natural grazing and resting area (in the second reserve). A sufficient number of feeding places and especially their good dispersion could help decrease the agonistic behaviour. Knowledge of the social behaviour of free-ranging rhinos at potentially competitive places in smaller reserves can also be very valuable for better understanding of behaviour of captive animals.

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Mammalia is a peer-reviewed journal devoted to the inventory, analysis and interpretation of Mammalian diversity. It publishes original results on all aspects of systematics (comparative, functional and evolutionary morphology; morphometrics; phylogeny; biogeography; taxonomy and nomenclature), biology, ecology and conservation of mammals.