- Dr Aicha Beya Mammeria associate Prof in Badji Mokhtar University, HDR in biology, Faculty SNV. Department of biology, Head of team 'AQUAMICRO" Lab Aquaculture and pathologie of... moreDr Aicha Beya Mammeria associate Prof in Badji Mokhtar University, HDR in biology, Faculty SNV. Department of biology, Head of team 'AQUAMICRO" Lab Aquaculture and pathologie of ecosystem, AQUAPATH, University Badji Mokhar Annaba -Member of AFLag Association for the study of coastal lagoons (AFLag). Mediterranean Observatory Research Environment, University of MontpellierUBMA. BP 12. Annaba. Algeriaedit
Abstract The north of Algeria is the site of important wetlands and lagoons of high ecological, cultural and economic features, with significant capital to preserve. The country ratified the Ramsar Convention in 1982, including 50... more
Abstract The north of Algeria is the site of important wetlands and lagoons of high ecological, cultural and economic features, with significant capital to preserve. The country ratified the Ramsar Convention in 1982, including 50 wetlands, occupying more than 2.99 million hectares, or 50% of the estimated total area of wetlands in Algeria, of which 762 are natural and 689 are artificial. Migratory birds are a most important feature and henc the focus on the study of a model that is the white stork Ciconia ciconia. To explain the link between this species and the wetland, we made a survey of the distribution of nest, using a GPS, from 1996 to 2014. The impact of environmental changes affects the dynamics of the white stork living near the coastal zone in northeastern Algeria. There are several parameters governing the abundance and reproduction of storks which are marked by an average fertility compensated by a high proportion of breeding pairs or by changing the behavior migratory of certain sedentary groups.
Research Interests:
ABSTRACT
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We collected twelve nests of the white stork Ciconia ciconia from the wetland of El-Tarf in the extreme northeast of Algeria during 2008 and 2009, between September and November. The nests were carefully dislocated to collect the... more
We collected twelve nests of the white stork Ciconia ciconia from the wetland of El-Tarf in the extreme northeast of Algeria during 2008 and 2009, between September and November. The nests were carefully dislocated to collect the different arthropod species contained either at the surface of the nest or in the material used to build the nest. We found 159 mites, belonging to Mesostigmata, Uropodina (150) and Sejidae, Sejina (9). We also found 2 pseudoscorpions, 1 chewing louse (Mallophaga, Laemobothriidae) and, for the first time in nests of white storks, the flea Ctenocephalides felis (4 specimens). The remainder were ant heads, beetle heads of Carabidae and Histeridae, immature Anthocoris bugs (Heteroptera) and woodlice (Isopoda).
Research Interests:
Breeding pairs of the White Stork, Ciconia ciconia L. 1758, were monitored from 2007 to 2011 in the wetlands of El Tarf, northeastern Algeria, where they are numerous. The purpose was to define their demographic strategies and explain the... more
Breeding pairs of the White Stork, Ciconia ciconia L. 1758, were monitored from 2007 to 2011 in the wetlands of El Tarf, northeastern Algeria, where they are numerous.
The purpose was to define their demographic strategies and explain the functioning of populations, which had not been studied previously in this region. Nest locations were determined with a GPS receiver. The numbers of breeding pairs increased from 174 in 1996 to 475 in 2007 and to 634 in 2011; nest density increased from 25.22/100 km2 in 1996 to 64.76/100 km2 in 2011. These values vary within the area, with 61.42% of the breeding pairs being established in zone I (El Tarf and surroundings), and 35.57% in zone II (El Kala and surroundings). This variation is related to the extension of farmlands and to climatic conditions, which provide the species with good food resources, thus enhancing the survival rate of the fledglings and favouring sedentarity in some groups.
In 2011, 99% of the pairs produced fledglings, whereas in 1996 this proportion did not exceed 86% (MOALA GRINE, 1996). Changes related to local climatic conditions might constrain the development of this species.
Keywords: white stork, Ciconia ciconia, El Tarf wetland, northeast Algeria, climatic conditions, density, sedentary lifestyle.
The purpose was to define their demographic strategies and explain the functioning of populations, which had not been studied previously in this region. Nest locations were determined with a GPS receiver. The numbers of breeding pairs increased from 174 in 1996 to 475 in 2007 and to 634 in 2011; nest density increased from 25.22/100 km2 in 1996 to 64.76/100 km2 in 2011. These values vary within the area, with 61.42% of the breeding pairs being established in zone I (El Tarf and surroundings), and 35.57% in zone II (El Kala and surroundings). This variation is related to the extension of farmlands and to climatic conditions, which provide the species with good food resources, thus enhancing the survival rate of the fledglings and favouring sedentarity in some groups.
In 2011, 99% of the pairs produced fledglings, whereas in 1996 this proportion did not exceed 86% (MOALA GRINE, 1996). Changes related to local climatic conditions might constrain the development of this species.
Keywords: white stork, Ciconia ciconia, El Tarf wetland, northeast Algeria, climatic conditions, density, sedentary lifestyle.
Research Interests: Ornithology and Ecology
En 1991, l’entreprise SWAN Informatique est fondée, cette entreprise algérienne avait l’objectif d’être à la pointe des technologies dans les domaines de l’Internet et de l’intégration de solutions informatiques pour l’entreprise au moyen... more
En 1991, l’entreprise SWAN Informatique est fondée, cette entreprise algérienne avait l’objectif d’être à la pointe des technologies dans les domaines de l’Internet et de l’intégration de solutions informatiques pour l’entreprise au moyen d’ERP de classe mondiale, une idée innovante dans les années 90, lorsque le pays ne connaissaient pas l’apogée des Nouvelles TIC