Authors
Res Altwegg, Les G Underhill
Publication date
2006/11/1
Journal
Ostrich-Journal of African Ornithology
Volume
77
Issue
3-4
Pages
220-224
Publisher
Taylor & Francis Group
Description
Reliable estimates of survival rates of southern African bird species are still rare. Yet precise information on life history traits of birds from this southern Mediterranean-type climate would help in evaluating the generality of global patterns of avian life history. We estimated annual survival of Cape Sugarbirds Promerops cafer at a breeding site and a non-breeding site, using capture-mark-recapture methods. Consistent between the two sites, annual survival was 0.54 for females and 0.64 for males, with an average of 0.62 at the breeding site. These estimates are close to estimates for more tropical African species, but at the upper range of estimates for northern-temperate passerines. With their small clutches, Cape Sugarbirds thus have a life history that is more similar to tropical passerines than to northern-temperate passerines. We found a high proportion of transient individuals at the non-breeding site, but not at the …
Total citations
2010201120122013201420152016201720182019202020212022202311111