Phenology and diurnal behavior of common  shelduck Tadorna tadorna at Sebkhet Bazer (El-Eulma, Nouth-East of Hauts Plateaux, Algeria)

Q4 Environmental Science
Leila Bouaguel, N. Charchar, M. Houhamdi
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引用次数: 1

Abstract

This work aims to study phenology and daytime budget of common shelduck Tadorna tadorna (Anatidae) for two wintering seasons (2017/2018, 2018/2019) at Sebkhet Bazer (El-Eulma) North-East of Algeria from September to March. The obtained results show that common shelduck has the status of a wintering species. It was observed presently in the site during the study period. Common shelduck numbers begin to increase from the first decade of September to reach the maximums between late December and early January, where we had recorded the peaks of abundance 840 for the first season and 930 for the second. During our monitoring, budget time results showed that feeding is the dominant activity (surface water feeding, feeding on banks, and feeding by tipping), which take a ratio of more than 68%, the second activity is swimming with 18.71%, followed by preening which holds 9.14%, sleeping activity with a ratio of 2.38%, flight take the five range with a ratio of 0.82%. Finally, courtship and agonistic behavior recorded the lowest ratio on all budget time – 0.42% and 0.38% respectively. We can conclude that Sebkhet Bazer is a diurnal grazing ground for this Anatidae species.
阿尔及利亚上高原东北部El-Eulma Sebkhet Bazer地区普通壳鸭Tadorna Tadorna的物候特征和日行为
本研究旨在研究9月至3月在阿尔及利亚东北部Sebkhet Bazer (El-Eulma)两个冬季(2017/2018、2018/2019)的普通鸭Tadorna Tadorna (Anatidae)的物候和日间预算。研究结果表明,普通壳鸭具有越冬物种的地位。在研究期间,它是在现场观察到的。普通白背鸭的数量从9月的第一个十年开始增加,在12月下旬到1月初达到最大值,我们记录了第一季840只和第二季930只的丰度峰值。在我们的监测过程中,预算时间结果显示,取食是主要的活动(地表水取食、靠岸取食和倾倒取食),占比超过68%,其次是游泳活动,占比18.71%,其次是梳理,占比9.14%,睡眠活动占比2.38%,飞行活动占比0.82%。最后,求偶行为和竞争行为在所有预算时间内的比例最低,分别为0.42%和0.38%。我们可以得出结论,Sebkhet Bazer是这种鸭科物种的昼夜放牧地。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Acta Biologica Sibirica
Acta Biologica Sibirica Environmental Science-Nature and Landscape Conservation
CiteScore
1.20
自引率
0.00%
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0
审稿时长
12 weeks
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