Author: Ross, G.J.B. and Black, R.A.R.
Title: Annals of the Cape Provincial Museums. Volume 8. Part 6. Aspects of Adaptive Radiation in Southern African Accipiters.
Description: Cape Provincial Museums, Albany Museum, Grahamstown, Natural History. Volume 8. Part 6. 31st December 1970. Stapled wraps, p.57-p.65pp, illustrated. 184mm wide x 240mm high. New unread copy. Some aspects of the adaptive radiation of African accipitrine hawks are discussed in this study, based on the wing and culmen measurements of seven species; Accipiter minullus (Daudin), A. badius (Gmelin), A. ovampensis (Gurney), A. rufiventris (Smith), A. tachiro (Daudin) and A. melanoleucus (Smith), Melierax gabar (Daudin). These measurements are discussed in relation to observations on habitats and hunting methods. The species were found to be spread over an even size-gradient, though they form three groups in size, habitat and hunting methods. In all seven species the female is larger then the male. A. ovampensis and A. rufiventris are morphologically similar but appear to be allopatric. M. gabar appearsto have occupied an available position in the Accipiter series.nomeskelus

Keywords: albany museum grahamstown port elizabeth eastern cape provincial museum port elizabeth museum south southern africa african accipiter hawk minulles badius ovampensis rufiventris tachiro melanoleucus gabar ornithology


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