Breeding Ecology of the Iberian Chiffchaff Phylloscopus ibericus: First Data from North Africa

IF 0.4 4区 环境科学与生态学 Q4 ECOLOGY
A. Bougaham
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引用次数: 0

Abstract

ABSTRACT Till now, the breeding biology of several North African bird populations has been little studied, particularly that of the southern populations of Iberian chiffchaff Phylloscopus ibericus. In the present study, total of 31 nests of Iberian chiffchaff were monitored in the northeastern Algeria during 2013–2017. The nesting period, clutch and brood sizes, and reproductive success of the species were determined. The first egg-laying dates of the first broods were spread over the first twenty days of April. There were significant among-year variations in nesting seasons. The Iberian chiffchaff clutch sizes averaged 4.51 eggs. The number of hatchlings and fledglings averaged 4.09 and 3.54 nestlings, respectively. There is no correlation between the nest height above the ground and the hatching and the breeding success of the species. Predation and nest abandonment were the main causes of the breeding failure of the Iberian chiffchaff in studied population, however, in general the breeding success was high – 80.7%. Breeding data for the Iberian chiffchaff at the southern edge of its breeding range in North Africa show smaller clutches and production of fewer young compared to the common chiffchaff Phylloscopus collybita in Europe.
伊比利亚地区毛叶的繁殖生态学——来自北非的首次数据
迄今为止,对北非几个鸟类种群的繁殖生物学研究甚少,特别是对南部伊比利亚头糠秕(Phylloscopus ibericus)种群的研究。在本研究中,2013-2017年在阿尔及利亚东北部监测了31个伊比利亚头糠巢穴。测定了该物种的筑巢期、窝卵数、窝卵数和繁殖成功率。第一批蛋的第一次产卵日期分布在四月的头二十天。筑巢季节有显著的年内变化。伊比利亚头糠秕每窝平均有4.51个蛋。雏鸟数平均4.09只,雏鸟数平均3.54只。巢距地面的高度与该物种的孵化和繁殖成功率之间没有相关性。捕食和弃巢是研究种群繁殖失败的主要原因,但总体上繁殖成功率高达80.7%。在北非繁殖范围的南部边缘,伊比利亚头屑的繁殖数据显示,与欧洲普通头屑Phylloscopus collybita相比,它们的窝更小,产仔也更少。
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来源期刊
Polish Journal of Ecology
Polish Journal of Ecology 环境科学-生态学
CiteScore
1.10
自引率
0.00%
发文量
9
审稿时长
18-36 weeks
期刊介绍: POLISH JOURNAL OF ECOLOGY (formerly Ekologia polska) publishes original scientific research papers dealing with all aspects of ecology: both fundamental and applied, physiological ecology, evolutionary ecology, ecology of population, community, ecosystem, landscape as well as global ecology. There is no bias regarding taxons, ecosystems or geographical regions.
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