Arid
DOI10.3161/000164509X464821
Egg size variation and breeding characteristics of the Black-winged Stilt Himantopus himantopus in a Saharan oasis
Adamou, Ala-Eddine3; Kouidri, Mohamed3; Chabi, Yassine2; Skwarska, Joanna1; Banbura, Jerzy1
通讯作者Banbura, Jerzy
来源期刊ACTA ORNITHOLOGICA
ISSN0001-6454
EISSN1734-8471
出版年2009
卷号44期号:1页码:1-7
英文摘要

Different aspects of the breeding biology of the Black-winged Stilt were Studied in a natural oasis wetland area in the Sahara Desert, the Chott of Ain El Beida, near Ouargla, E Algeria in 2004-2007. In this wetland the water level is independent of rainfall and Stilts start egg laying when average daily temperature increases to ca. 15 degrees C, mostly in April-May, with no significant differences between years. Complete clutches usually consist of 4 eggs but 3 egg clutches happen with low frequency (2.9-5.6%). Egg size traits (mass, length, breadth and Volume) tended to decrease from 2004 to 2007, probably due to deteriorating hydrological conditions of the wetland. Within-clutch variability showed both significant repeatability and laying-sequence-dependent differences among eggs, with the final egg being smaller than the clutch mean value. We found that all egg traits studied showed a negative correlation with the date of laying, which seems to be a phenomenon analogous to the seasonal decrease in clutch size, typical of birds with more variable clutch sizes. Hatching tended to be asynchronous, with average Clutch hatching time being 1.84 days. The small final egg and hatching asynchrony are typical components of the adaptive brood reduction, the phenomenon not being recorded so far and remaining for future studies on the Black-winged Stilt. These are the first published data on breeding characteristics for any N African population of the Black-winged stilt.


英文关键词Black-winged Stilt Himantopus himantopus oasis wetland Sahara breeding biology clutch size egg size laying order hatching asynchrony
类型Article
语种英语
国家Poland ; Algeria
收录类别SCI-E
WOS记录号WOS:000268651900001
WOS关键词RECURVIROSTRA-AVOSETTA ; CLUTCH SIZE ; ALGERIA ; ECOLOGY ; BIRDS
WOS类目Ornithology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/159484
作者单位1.Univ Lodz, Dept Expt Zool & Evolutionary Biol, PL-90237 Lodz, Poland;
2.Badji Mokhtar Univ Annaba, Fac Sci, Dept Biol, Annaba, Algeria;
3.Univ Amar Telidji, Fac Sci Ingn, Dept Biol, Laghouat, Algeria
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Adamou, Ala-Eddine,Kouidri, Mohamed,Chabi, Yassine,et al. Egg size variation and breeding characteristics of the Black-winged Stilt Himantopus himantopus in a Saharan oasis[J],2009,44(1):1-7.
APA Adamou, Ala-Eddine,Kouidri, Mohamed,Chabi, Yassine,Skwarska, Joanna,&Banbura, Jerzy.(2009).Egg size variation and breeding characteristics of the Black-winged Stilt Himantopus himantopus in a Saharan oasis.ACTA ORNITHOLOGICA,44(1),1-7.
MLA Adamou, Ala-Eddine,et al."Egg size variation and breeding characteristics of the Black-winged Stilt Himantopus himantopus in a Saharan oasis".ACTA ORNITHOLOGICA 44.1(2009):1-7.
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