Abstract This study examined the role of habitat characteristics on the presence of Salamandra algira in the Edough Peninsula, north-eastern Algeria. In this region, 33 sites were surveyed over the late winter and spring for a period of three years. Salamandra algira was present at 16 of these sites and absent from 17. These sites were characterized based on parameters related to their macroecology (climate, topography) and habitat structure (density, height, canopy closure and diversity of woody plants). Our analyses showed that mean temperature, topography, woody plant density and height and canopy cover contributed most to the explaining differences between sites where S. algira was present and where it was absent. Most of the sites occupied by S. algira were supra- and meso-Mediterranean forest thermotypes and were dominated by deciduous/evergreen oak trees (Quercus canariensis Willd. and Quercus suber L.). In contrast, the presence of S. algira in thermo-Mediterranean forest was only confirmed in one location. This suggests that the transition between the thermophilic facies of the cork oak forest and the thermo-Mediterranean formations possibly determines the lower limits of S. algira in the region of Edough.

中文翻译：

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Salamandra algira Bedriaga 的栖息地结构和存在，1883 年在阿尔及利亚东北部的 Edough 半岛

摘要 本研究考察了栖息地特征对阿尔及利亚东北部埃多半岛的蝾螈存在的影响。在该地区，在冬末和春季对 33 个地点进行了为期三年的调查。Salamandra algira 出现在其中 16 个地点，17 个地点缺席。这些地点的特征基于与其宏观生态学（气候、地形）和栖息地结构（密度、高度、树冠关闭和木本植物多样性）相关的参数。我们的分析表明，平均温度、地形、木本植物密度和高度以及树冠盖度对解释 S. algira 存在和不存在的地点之间的差异贡献最大。S 占据的大部分场地。algira 是上地中海和中地中海森林热型，以落叶/常绿橡树（Quercus canariensis Willd. 和 Quercus suber L.）为主。相比之下，仅在一个地点证实了热带地中海森林中 S. algira 的存在。这表明软木橡树林的嗜热相和热地中海地层之间的过渡可能决定了 Edough 地区 S. algira 的下限。