Diversity and Distribution of Characeae in the Maghreb (Algeria, Morocco, Tunisia)
| Autor: | Gérard de Bélair, Serge Muller, Marion Bottollier-Curtet, Laure Paradis, Laila Rhazi, Hanene Zouaïdia-Abdelkassa, Ingeborg Soulié-Märsche, Patrick Grillas, Zeineb Ghrabi-Gammar, Amina Daoud-Bouattour, Mohamed Benslama |
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| Přispěvatelé: | Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Université Mohammed V de Rabat [Agdal], Université Badji Mokhtar - Annaba [Annaba] (UBMA), Université de Tunis El Manar (UTM), Université de la Manouba [Tunisie] (UMA), Institut National Agronomique de Tunisie, Institut de recherche de la Tour du Valat |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Chara biology 010604 marine biology & hydrobiology Biogeography Rare species Endangered species Identification key Plant Science 15. Life on land Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Nitella Geography [SDE]Environmental Sciences Threatened species Botany Endemism Ecology Evolution Behavior and Systematics |
| Zdroj: | Cryptogamie Algologie Cryptogamie Algologie, BioOne, 2017, 38 (3), pp.201-251. ⟨10.7872/crya/v38.iss3.2017.201⟩ |
| ISSN: | 1776-0984 0181-1568 |
| DOI: | 10.7872/crya/v38.iss3.2017.201 |
| Popis: | International audience; Characeae are macroscopic green algae present in the Maghreb (Morocco, Algeria, Tunisia) that are known since the 19th century works of Desfontaines (1800) and Braun (1868). Feldmann (1946) published the first regional synthesis, and this study provides a new Maghreb-wide synthesis of all collections made since 1784 (570 observations distributed over 464 sites). Each of the 31 reported species is described in detail with its diagnostic features, ecology and distribution in the three Maghrebian countries. Distribution maps distinguish between the three collection periods: 1780–1939, 1940–1979, and 1980–2016. An illustrated key is provided to help botanists working in the Maghreb to identify the taxa. From a biogeographical perspective, the Characean flora of the Maghreb is dominated by elements originating from northern (European) countries (61.3%) that include regionally very rare species such as Chara strigosa and C. tomentosa. The Mediterranean-Atlantic element is also well represented (32.3%), with some Mediterranean endemics (Chara imperfecta, C. oedophylla, C. vulgaris var. gymnophylla). Finally, two taxa that have an affinity for tropical conditions (Chara zeylanica and Lamprothamnium succinctum) extend to the southern Sahara. In North Africa, 14 species (7 Chara, 2 Lamprothamnium, 4 Nitella and 1 Sphaerochara) are threatened and raise issues about their conservation; three of these are particularly endangered: Chara imperfecta, C. oedophylla and Lamprothamnium papulosum. |
| Databáze: | OpenAIRE |
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