4) Dr. Oded Cohen

Tetraclinis articulata, a threatened species native to the western Mediterranean, has been introduced to the eastern Mediterranean for afforestation purposes. This study assessed its naturalization and invasion potential across Israel, where it was planted over 6,000 hectares in semi-arid and Mediterranean regions. We hypothesized that T. articulata would colonize early-successional sites with favorable microhabitat conditions. To test this, a field survey was conducted across 46 plantation sites, examining sapling densities within and beyond plantation margins. Surprisingly, the findings revealed that T. articulata acts as a “superinvader,” thriving in mature woodlands and forests rather than early-successional habitats. Saplings were observed in 74% of sites, with 79% extending beyond plantation boundaries. Higher sapling densities were linked to tall vegetation, northern slopes, soft bedrock, high stone cover, and areas free from grazing. These landscape features were utilized as climatic refuges for the germination and growth of T. articulata, facilitating its establishment and spread in dryland climates. The species’ invasion into undisturbed ecosystems poses ecological risks. Management strategies should focus on reducing seed sources regionally, particularly near woodlands, to limit further spread. While superinvaders are typically associated with tropical or temperate climates, this study highlights their occurrence in Mediterranean drylands, emphasizing the need for careful planning in afforestation initiatives. For the full article, please see the following link: https://rdcu.be/edVvQ