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<p>This study analyses the diversity and structure of ant communities (Formicidae) in ten coastal matorrals in Algeria. Sampling was carried out using hand-capture, pitfall traps, and bait, resulting in the identification of 36 species divided into 14 genera and three subfamilies: Dolichoderinae, Formicinae, and Myrmicinae. The Myrmicinae dominate the majority of stations, although Dolichoderinae are more abundant in low matorrals and wooded matorrals. Analysis of the specific frequencies reveals a marked structuring of the assemblages, dominated by generalist species such as <i>Tapinoma magnum, Messor barbarus,</i> and <i>Crematogaster scutellaris</i>. Species richness varies from 6 to 15 species depending on the site, and the Shannon–Weaver index highlights a higher diversity in open or lightly wooded environments. A principal component analysis (PCA) reveals the decisive influence of environmental factors such as temperature, humidity, altitude, and vegetation cover on species distribution. Warm, open environments favour greater species richness, while altitude and humidity limit diversity. Finally, hierarchical ascending classification (HAC) shows a distinct ecological structuring of sites according to their degree of openness. These results highlight the importance of micro-habitats and structural heterogeneity in maintaining myrmecological biodiversity and underline the ecological value of coastal matorrals as reservoirs of diversity in the Mediterranean basin.</p>

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Can environmental factors influence the assemblage of ants (Formicidae) in Mediterranean matorrals in Algeria?

  • 期刊论文

  • 发表日期：

    2026年5月18日

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  • Anissa Henine-Maouche,
  • Riadh Moulaï,
  • Massinissa Belahbib,
  • Ferhat Mazioua,
  • Hakan Bozdoğan

摘要

This study analyses the diversity and structure of ant communities (Formicidae) in ten coastal matorrals in Algeria. Sampling was carried out using hand-capture, pitfall traps, and bait, resulting in the identification of 36 species divided into 14 genera and three subfamilies: Dolichoderinae, Formicinae, and Myrmicinae. The Myrmicinae dominate the majority of stations, although Dolichoderinae are more abundant in low matorrals and wooded matorrals. Analysis of the specific frequencies reveals a marked structuring of the assemblages, dominated by generalist species such as Tapinoma magnum, Messor barbarus, and Crematogaster scutellaris. Species richness varies from 6 to 15 species depending on the site, and the Shannon–Weaver index highlights a higher diversity in open or lightly wooded environments. A principal component analysis (PCA) reveals the decisive influence of environmental factors such as temperature, humidity, altitude, and vegetation cover on species distribution. Warm, open environments favour greater species richness, while altitude and humidity limit diversity. Finally, hierarchical ascending classification (HAC) shows a distinct ecological structuring of sites according to their degree of openness. These results highlight the importance of micro-habitats and structural heterogeneity in maintaining myrmecological biodiversity and underline the ecological value of coastal matorrals as reservoirs of diversity in the Mediterranean basin.