FACTORS AFFECTING THE DENSITIES OF NECTARIVORES IN PROTEA-ROUPELLIAE WOODLAND

被引：13

作者：

DESWARDT, DH

机构：

[1] Department of Ornithology, National Museum, Bloemfontein, 9300

来源：

OSTRICH | 1993年 / 64卷 / 04期

关键词：

D O I：

10.1080/00306525.1993.9632658

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Between December 1986 and December 1992, 812 birds were captured at eleven selected Protea roupelliae sites at Lydenburg in the eastern Transvaal. South Africa. In this sample were 638 nectarivores. of which high densities of Gurney's Sugarbird Promerops gurneyi (41,3%) and Malachite Sunbird Nectarinia famosa (27,7%) were captured. Mean densities of 4,6 Gurney's Sugarbirds ha-1 and 3,5 Malachite Sunbirds ha-1 were recorded. No significant correlation was found between the clump-sizes and the number of birds although higher densities were recorded at some of the smaller sites. Protea flowering period, clump-size and the effect of fire are factors influencing bird densities. Male sugarbirds show site tenacity while localized movements have been observed in individual sugarbirds.

引用

页码：172 / 177

页数：6

共 24 条

[1]

Acocks J.P.H., Veld types of South Africa (3rd ed.)Mem, Bot. Surv. S.Afr, 57, pp. 1-146, (1988)

[2]

Broekhuysen G.J., The avifauna of the Cape protea-heath macchia habitat in South Africa, Ostrich Suppl, 6, pp. 323-334, (1966)

[3]

Craib C.L., Gurney’s Sugarbird, Wbc-News-Sheet, 96, pp. 9-10, (1977)

[4]

De Swardt D.H., Some observations on the local movements of Gurney’s Sugarbird in the Lydenburg area, Safring News, 18, pp. 31-32, (1989)

[5]

De Swardt D.H., Birds of the Gustav Klingbiel Nature Reserve and the Sterkspruit area, Lydenburg, Sthn Birds, 16, pp. 1-67, (1990)

[6]

De Swardt D.H., The seasonal movements of Gurney’s Sugarbird Promerops gurneyi in the Lydenburg area, Transvaal, Ostrich, 62, pp. 40-44, (1991)

[7]

De Swardt D.H., Distribution, biometrics and moult in Gurney’s Sugarbird, Promerops Gurneyi. Ostrich, 63, pp. 13-20, (1992)

[8]

De Swardt D.H., Bothma N., Notes on the breeding biology of Gurney’s Sugarbird, Ostrich, 63, pp. 136-137, (1992)

[9]

Dowsett-Lemaire F., Food plants and the annual cycle in a montane community of sunbirds (Nectari-nia spp.) in northern Malawi, Tauraco, 1, pp. 167-185, (1989)

[10]

Fraser M.W., Short-term responses of birds to fire in old Mountain Fynbos, Ostrich, 60, pp. 172-182, (1989)

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