Tiffech湖(Souk Ahras,阿尔及利亚东北部)馅饼Avocet,Recurvirosrta avocetta(Charadriformes,Recurovirostradae)的繁殖生态学

Q3 Agricultural and Biological Sciences Zoodiversity Pub Date : 2021-05-04 DOI:10.15407/zoo2021.03.201
N. Boukrouma
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引用次数: 1

摘要

馅饼Avocet(Recurvirostra avocetta Linnaeus,1758)是阿尔及利亚东北部的一种定居物种,尽管数量在春季和夏季有所增加。筑巢发生在不同盐池的堤坝和湖泊上。在本研究中,对2017年阿尔及利亚东北部蒂菲赫湖湿地(海拔868m)Pied Avocet的繁殖生态进行了研究。馅饼Avocets一家于2月初抵达蒂菲奇湖,通常会成群结队地呆上几天,然后分散起来建立领地。产卵发生在4月11日至6月21日,有两个明显的高峰(4月和5月的最后15天),潜伏期为27.0天。目前的研究表明,繁殖季节正在扩大。这种高海拔种群的离合器和蛋的大小与低地种群相当。孵化成功率为85.77%,平均每窝净生产力为0.63只。人类捕食和绵羊放牧造成的整个巢穴的破坏是造成大部分卵子损失的原因。
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Breeding Ecology of the Pied Avocet, Recurvirosrta avosetta (Charadriiformes, Recurvirostridae), in Tiffech Lake (Souk Ahras, Northeastern Algeria)
The Pied Avocet (Recurvirostra avosetta Linnaeus, 1758) is a sedentary species in Northeastern Algeria, although numbers present increase during spring and summer. Nesting occurs on the dikes and lakes placed at the different pools of the saltpans. In this study, the breeding ecology of the Pied Avocet was studied during the 2017 breeding season in Tiffech lake wetland (868 m in elevation), Northeastern Algeria. The Pied Avocets arrived, at Tiffech Lake in early February and usually spent a few days in flocks before dispersing to set up territories. Egg-laying occurred from 11 April to 21 June, with two distinct peaks (last 15 days of April and May) and incubation period was 27.0 days. The present study indicates the expanded, breeding season. Clutch and egg size of this high-elevation population was comparable to lowland counterparts. Hatching success was 85.77 % and mean net productivity was 0.63 chicks per nest. Entire nest failure from human predation and sheep grazing was responsible for most egg losses.
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来源期刊
Zoodiversity
Zoodiversity Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
1.20
自引率
0.00%
发文量
29
审稿时长
8 weeks
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