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Ostrich 2006, 77(3&4): 220224 Printed in South Africa --All rights reserved
 

Summary: Ostrich 2006, 77(3&4): 220224
Printed in South Africa -- All rights reserved
Copyright NISC Pty Ltd
OSTRICH
EISSN 1727947X
Apparent survival rates of Cape Sugarbirds Promerops cafer at a breeding
and a non-breeding site
Res Altwegg* and Les G Underhill
Avian Demography Unit, Department of Statistical Sciences, University of Cape Town, Rondebosch 7701, South Africa
* Corresponding author, e-mail: altwegg@adu.uct.ac.za
Introduction
The two species of sugarbirds, the Cape Sugarbird Prome-
rops cafer and Gurney's Sugarbird P. gurneyi, form the
monogeneric family Promeropidae, endemic to southern
Africa. Recent research has demonstrated that, in terms of
Sibley and Ahlquist's (1990) phylogeny, the sugarbirds are
basal to the Passeroidae, a large superfamily that contains
five families -- Nectariniidae (169 species), Melanochar-
tidae (10), Paramythiidae (2), Passeridae (386) and Fringi-
llidae (993) -- with c. 15% of the extant bird species of the

  

Source: Altwegg, Res - Avian Demography Unit, Department of Statistical Sciences, University of Cape Town

 

Collections: Environmental Sciences and Ecology