The current state of the plant diversity in the Tlemcen region (Northwest Algeria)

Abstract

Tlemcen region is characterized by a Mediterranean climate, with a remarkable vegetal cover. The latter is influenced by the anthropozoological action. For that, we realized a phytoecological study based on the minimum area classical method [1] which allows us to have a good overview on plant biodiversity and better analyze and interpret the vegetation at different levels (systematic composition; biological, morphological and biogeographical characterizations; stratification; and plant species inventory which we hope comprehensive). The results show that our ecosystems are disrupted because therophytisation, before last vegetation dynamics element [2], settles giving up a few feet of cork and holm oaks species of ancient forest

Evolution of Mediterranean Forest Ecosystems and Impact of Natural and Anthropogenic Disturbances: Case of the Cork Oak Forest- Tlemcen- Algeria

“…The transformation of forest cover to sparse vegetation has been described as a progressive degradation of the forest, mostly driven by grazing pressures, repeated res, regeneration failures and climate change impact (Benmostefa 2004;Derbal 2006;Ghalem 2006;Letreuch-Belarouci 2009). Henaoui and Bouazza (2012), reported that anthropogenic pressures coupled with mild temperatures have created favourable environment for the establishment and dominance of non-woody species (therophytes), ahead of more nutrient and water demanding woody species in the region of Tlemcen. This was further emphasised by Felidj et al (2014), who highlighted that over the years, the area has experienced increasing anthropogenic pressure and climatic variation posing serious challenge for resource managers.…”

“…Several studies have been conducted in Ha r-Zariffet cork oak forest investigating the health status of cork oak trees on annual growth and cork quality, re occurrence, development strategy and conservation, oristic diversity, climate change impacts on forest species composition and assessment of the forest resources (Bencherif and Bellifa 2017;Benmostefa 2004;Bouhraoua 2003;Dehane 2012;Henaoui and Bouazza 2012;Letreuch-Belarouci et al 2010). However, no study has speci cally focused on forest cover change and the pattern of change.…”

Aristolochia baetica L. (Aristolochiaceae): New Records of Rare Medicinal Species from Northwestern Algeria

“…A. baetica is a very rare species in Algeria, with the only reported sampling sites located in the northwest, i.e. 82 km south of the city of Oran, in the Tessala Mountains of Sidi Bel Abbes (Latreche et al, 2015;Hakemi et al, 2018;Hakemi et al, 2020) and Hafir Forest in Tlemcen, 140 km southwest of Oran (Hanaoui & Bouazza, 2012). Therefore, the aim of this study is to show the newly discovered sites of Aristolochia baetica in the northwest of the Mediterranean city of Oran (northwest Algeria), and to give some indications in terms of ecology, habitat, biology, reproduction, and medicinal properties.…”