Department of Biology

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Author: search.filters.author. Menaa, MStart date: 2020

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    Synecological approach of novelty responses in bird assemblage inhabiting Atlas cedar afforestation (Cedrus atlantica(Endl.) G. Manetti ex Carrière) of Mount M’Cid, Northeastern Algeria
    (2023-05-22) Menaa, M; Guellati, K; Boutabia, L; Telailia, S.; Mohamed Cherif Maazi
    The degradation of Algerian forests caused by repeated ¦res, pests, diseases, and illegal cutting has led to signi¦cant losses in the natural heritage. Afforestation activities play a crucial role in restoring the degraded ecosystem, but the ecological characteristics of the forests are often overlooked when selecting single or multiple native or exotic coniferous species for afforestation. This study used a multivariate synecological approach (such as, Redundancy Canonical Analysis, a variation partitioning approach based on partial RDA and multivariate regression tree with indicator species) to analyze the relative contributions of environmental factors in forest bird community assembly in Atlas cedar stand afforestations. The survey used the point count method to observe the spatial distribution of breeding forest birds across the wooded landscape with respect to habitat predictors, summarizing woodland physiognomy and landscape-scale variables. A total of 47 forest bird species were observed, and the used multivariate synecological analysis has identi¦ed three major patterns of relationships among breeding birds and afforested area: the ¦rst was related to changes in tree structure during growth, the second was associated with the height of the grass layer, and the third was the gradient of height elevation.
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    RECENT AND EXCEPTIONAL IRRUPTION OF THE RAZORBILL ALCA TORDA (LINNAEUS, 1758) ON THE ALGERIAN COASTLINE
    (2023-06-30) Boutabia, L; Menaa, M; Mederbal, K.E; Boulaouad, B.A.
    The Algerian coastline, known for its diverse array of fauna primarily dependent on marine ecosystems, has recently experienced notable changes in its community, perhaps due to the severe weather conditions in the North Atlantic. To explore this phenomenon, we conducted an extensive survey of the entire Algerian coast, specifically focusing on fishing ports and beaches, during November and December of 2022. Our objective was to investigate the remarkable and recent irruption of the razorbill Alca torda, which typically spends the winter in the open sea. Throughout our study, we documented a total of 32 sightings of razorbill individuals, including both live specimens observed within harbors (as depicted in Fig. 2 & 3) and deceased individuals washed up on the beaches.
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    Les orchidéesdelarégiondeSouk-Ahras(Nord-est algérien) :inventaire,écologie,répartitionetenjeuxde conservation
    (2022-01-18) Boukehili, K; Boutabia, L; Telailia, S; Menaa, M; Tlidjane, A; fMaazi, M.C; Chefrour,A; Saheb, M; Véla,E.
    SUMMARY.— Orchids of Souk-Ahras province (Northeast of Algeria) : inventory, ecology, distribution and conservation concerns.— Algerian orchids became better known during the last years, but certain regions, such as the province of Souk-Ahras (Northeast of Algeria), remain under-prospected. This study is a phytoecological approach, which aims to improve the knowledge of the orchids of this province. A series of targeted surveys has been realized between 2011 and 2015 when we were able to check 7 genera, including 27 species/subspecies and 1 hybrid. Some species are widely distributed throughout the province territory, while others are very localized. Only 18 municipalities among the 26 in the province are concerned by this distribution and are represented by 73 stations including at least one species of orchids. Among the observed taxa 7 are qualified as rare or very rare at national level, at least 3 are Algerian-Tunisian endemics (Ophrys battandieri, Ophrys numida, Orchis pauciflora subsp. laeta) and at least 3 are threatened at global scale (Ophrys atlantica, VU ; Orchis patens subsp. patens, EN ; Serapias lingua subsp. stenopetala, CR). The orchids of Souk-Ahras province often grow on limestone, clayey or siliceous soils, in a subhumid bioclimate rarely semi-arid, at all altitudes of the province, from 500 to 1400 m. This variety of species highlights the taxonomic richness and confirms the interest of prospecting this region that was neglected by orchidologists