Amina AOUISSI (2019) Phénologie et structure de la Foulque macroule Fulica atra pendant son hivernage dans les écosystèmes aquatiques de Guerbes-Sanhadja (Skikda). University of Souk Ahras
Scientific Publications
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Abstract
Despite the widespread distribution of species of water birds such as the Common Coot Fulica atra, several characteristics of its wintering ecology are relatively unknown. We have analyzed for three consecutive winters (from September 2010 to April 2013) the spatial distribution and basic needs of this species in several wetlands of the complex of Guerbes-Sanhadja (Northeast Algeria). The maximum number of Coots counted is more or less identical, during the three wintering seasons. Maxima of 3 624 individuals were recorded in 2010/2011, 3702 in 2011/2012 and 3185 in 2012/2013. Among the studied thirteen wetlands, the wintering Coots are not uniformly distributed. More than 80% of all birds were recorded only on three sites, 50% in Garaet Hadj-Tahar and 30% on two sites Garaet Beni M'Hamed and Garaet El-Haouas. ACP analysis showed that wetland size and vegetation cover are the main discriminating between high occupied and low occupied sites for Coots distribution.
In regards to the basic wintering needs, we found that this Rallidae feeds mainly and uniformly on all the sites that were studied. Surface feeding is the main activity in this complex (84%). It is followed by feeding through diving (9%), feeding on banks (4%) and the feeding by Emersion of the neck and head (3%). The abundance of submerged plants and especially their green parts in autumn, winter and early spring strongly explains the low utilization rates of other feeding modes. As a result, these ecosystems are used as a daytime-earning ground for this species.
Key words: Common Coot, Fulica atra, Rallidae, Wintering, Spatial distribution, Day-time budget.
In regards to the basic wintering needs, we found that this Rallidae feeds mainly and uniformly on all the sites that were studied. Surface feeding is the main activity in this complex (84%). It is followed by feeding through diving (9%), feeding on banks (4%) and the feeding by Emersion of the neck and head (3%). The abundance of submerged plants and especially their green parts in autumn, winter and early spring strongly explains the low utilization rates of other feeding modes. As a result, these ecosystems are used as a daytime-earning ground for this species.
Key words: Common Coot, Fulica atra, Rallidae, Wintering, Spatial distribution, Day-time budget.
Information
| Item Type | Thesis |
|---|---|
| Divisions |
» Faculty of Natural Sciences and Life |
| ePrint ID | 1939 |
| Date Deposited | 2019-09-08 |
| Further Information | Google Scholar |
| URI | https://univ-soukahras.dz/en/publication/article/1939 |
BibTex
@phdthesis{uniusa1939,
title={Phénologie et structure de la Foulque macroule Fulica atra pendant son hivernage dans les écosystèmes aquatiques de Guerbes-Sanhadja (Skikda)},
author={Amina AOUISSI},
year={2019},
school={University of Souk Ahras}
}
title={Phénologie et structure de la Foulque macroule Fulica atra pendant son hivernage dans les écosystèmes aquatiques de Guerbes-Sanhadja (Skikda)},
author={Amina AOUISSI},
year={2019},
school={University of Souk Ahras}
}