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South African Journal of Science
On-line version ISSN 1996-7489
Print version ISSN 0038-2353
Abstract
MIDGLEY, Jeremy J. and WHITE, Joseph D.M.. Two dung beetle species that disperse mimetic seeds both feed on eland dung. S. Afr. j. sci. [online]. 2016, vol.112, n.7-8, pp.1-3. ISSN 1996-7489. http://dx.doi.org/10.17159/sajs.2016/20160114.
Scarabaeus spretus zur Strassen was observed to roll and bury Ceratocaryum argenteum (Restionaceae) seeds in the sandplain fynbos of the Potberg area of the De Hoop Nature Reserve, South Africa. This species is the second dung beetle species found to be deceived by the faecal mimicry of C. argenteum seeds - the first species being Epirinus flagellatus. An isotopic analysis suggests that both these dung beetle species most likely feed on eland (Taurotragus oryx), not bontebok (Damaliscus pygargus pygargus), dung. Thus the model in this mimicry is eland dung; this interaction suggests large herbivores are an integral part of this fynbos.
Keywords : Scarabaeus spretus; Epirinus flagellatus; seed dispersal; mimicry; deception; eland; Ceratocaryum argenteum.