Distribution, breeding phenology and time budget of Ruddy Shelduck <i>Tadorna ferruginea</i> during the annual cycle in the Hauts Plateaux, north-east Algeria

Boulkhssaïm, Mouloud; Ouldjaoui, Abdallah; Alfarhan, Ahmed H.; Samraoui, Boudjéma

doi:10.2989/00306525.2013.821680

Cited by 11 publications

(3 citation statements)

References 23 publications

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“…The site covers an area of 12,223 ha, with an altitude varying between 874 and 887 m (Boulkhssaïm et al, 2006).…”

Section: Location and Climatementioning

confidence: 99%

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Salinisation of soils in semi‐arid endorheic zone: Case of Chott El Beida (Algeria)

Laoufi,

Ait Mechedal,

Daoud

2023

Land Degrad Dev

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Chott El Beida, North of Algeria (Setif, 585 km2), is an endorheic zone located in a semi‐arid climate. It is among the first chotts listed under the Ramsar Convention on the Wetlands of International Importance. Numerous studies on wetlands in the Setif region have focused on hydrogeology, avifauna, and vegetation. However, only one study has been devoted to soil studies. This study focused on the pedological and geochemical aspects of salinity in this area. This study was conducted on a toposequence of 200 m comprising eight soil profiles. A set of 24 samples were collected from the top to a depth (0–200 cm) and were subjected to a series of physical and chemical analyses. The concentrations of the major elements were used to determine the chemical facies and calculate the saturation indices for each mineral and residual alkalinity using geochemical modelling with PHREEQC. This study shows that the salinity in Chott El Beida is very variable, varying from less saline to extremely saline, moving from the outside to the centre of the chott, with two types of saline profiles: the descending type towards the outside of the chott and the ascending type in the highly saline depression. Geochemical investigations demonstrated that the dominant facies is (Na‐Cl) which is in accordance with the neutral saline pathway. The phenomenon of salinisation in Chott El Beida is controlled mainly by the precipitation of minerals, namely, calcite, aragonite, dolomite, gypsum, and anhydrite, and the dissolution of evaporite minerals. The study of calcite residual alkalinity and generalised residual alkalinity showed that salinisation evolves in the neutral saline path without the risk of alkalinization.

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“…The site covers an area of 12,223 ha, with an altitude varying between 874 and 887 m (Boulkhssaïm et al, 2006).…”

Section: Location and Climatementioning

confidence: 99%

“…The climate of the region is Mediterranean, continental, or semiarid, and experienced an average annual temperature of 14.6 C and average annual rainfall of 401 mm between 2006(Tutiempo Network, 2021.…”

Section: Location and Climatementioning

confidence: 99%

Salinisation of soils in semi‐arid endorheic zone: Case of Chott El Beida (Algeria)

Laoufi,

Ait Mechedal,

Daoud

2023

Land Degrad Dev

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“…It has been little studied in the world [2]. But now we can find several studies that are interested in this species in Asia [3,4], in Europe [5,6] and In North Africa [7,8,9,10,11,12,13,14]. Other ecological aspects such as activity budgets of ducks provide valuable information on habitat use and assist in managing populations [15].…”

Section: Introductionmentioning

confidence: 99%

Ecology and behavioral response of Ruddy Shelduck (Tadorna ferruginea) in the wetland complex of Oued Righ valley (Algerian Sahara).

NOUIDJEM¹

2021

Alger. j. biosciences

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The wetland complex of Oued Righ valley accommodates a population of Ruddy Shelduck (Tadorna ferruginea) between 2012 and 2014, the total reached 80 individuals in the Lake Hamraia where the species wintering. The analysis of the diurnal time budget of wintering populations revealed the role of feeding area delivery for this species and they devoted their day time to feeding (51.2%), sleeping (18.8%), followed by swimming activity (6.3 %), and courtship activities with flying (2.03%) which often occurs after disturbances caused by human or by Marsh harrier (Circus aeruginosus). It is interesting to study the behavior of these ducks in Saharan bioclimatic area and follow the phenology and characteristics in order to preserve the biodiversity in this region.

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Sitting ducks: diet of wintering wildfowl in Lake Tonga, northeast Algeria

errafik

Samraoui

Baaziz

et al. 2017

Wetlands Ecol Manage

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Distribution, breeding phenology and time budget of Ruddy Shelduck Tadorna ferruginea during the annual cycle in the Hauts Plateaux, north-east Algeria

Cited by 11 publications

References 23 publications

Salinisation of soils in semi‐arid endorheic zone: Case of Chott El Beida (Algeria)

Salinisation of soils in semi‐arid endorheic zone: Case of Chott El Beida (Algeria)

Ecology and behavioral response of Ruddy Shelduck (Tadorna ferruginea) in the wetland complex of Oued Righ valley (Algerian Sahara).

Sitting ducks: diet of wintering wildfowl in Lake Tonga, northeast Algeria

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