Plant Ecology and Evolution 154(3): 405-418, doi: 10.5091/plecevo.2021.1868
Checklist of the native tree flora of Algeria: diversity, distribution, and conservation
expand article infoRachid Meddour‡, Ouahiba Sahar‡, Frédéric Médail§
‡ Faculty of Biological and Agronomic Sciences, Mouloud Mammeri University of Tizi Ouzou, Tizi Ouzou, Algeria§ Aix Marseille Université, Marseille, France

Corresponding author: Rachid Meddour ( rachid_meddour@yahoo.fr )

© Rachid Meddour, Ouahiba Sahar, Frédéric Médail.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Meddour R, Sahar O, Médail F (2021) Checklist of the native tree flora of Algeria: diversity, distribution, and conservation. Plant Ecology and Evolution 154(3): 405-418. https://doi.org/10.5091/plecevo.2021.1868
Open Access
Abstract

Background and aims – Trees represent an important component of many ecosystems of the world. The knowledge of their diversity and geographic distribution is of great theoretical and practical importance. This paper aims to provide the first comprehensive checklist of native tree taxa in Algeria.

Material and methods – The checklist was based on the analysis of published data and has been improved with own field observations. Statistical analysis has been performed on the taxonomic richness, life forms, and chorological spectra in terms of diversity, endemism, habitats, and distribution of the tree flora in Algeria. The conservation status following IUCN and the protection status at national level have been presented.

Key results – The checklist comprises 120 native tree taxa currently known in Algeria, including 106 species, one hybrid species, and 13 subspecies, belonging to 63 genera and 35 families. The four most species-rich families are Rosaceae (13 spp.), Fabaceae (12 spp.), Salicaceae (9 spp.), and Tamaricaceae (9 spp.). The richest genus is Tamarix (9 spp.), followed by Quercus (7 taxa in 6 spp.). We found that trees are more often single-stemmed (45%), and are small or medium-sized. Mediterranean element is dominant (46%), followed by Saharo-arabic (17%), wide distribution element (15%), and European elements (12%). Furthermore, 11% of all tree taxa are endemics or subendemics. The highest number of taxa (71%) is found in the Tellian area, whereas the lowest number (36%) occurs in the Saharan area. Only nine taxa are considered to be threatened or near threatened, while 36 taxa are yet not assessed. This analysis highlights 33 taxa with patrimonial value, both endemics and range-restricted. Out of these taxa, only 18 are protected by national legislation.

Conclusion – This work shows that a relatively rich tree flora is found in Algeria. It aims to be used as a tool for managing tree species diversity. Some of the tree taxa need appropriate measures for their in situ conservation, a challenging but worth pursuing target.

Keywords
checklist, endemic plants, life forms, North Africa, Sahara, taxonomic richness, threatened species, trees

References

  • Abbate G., Iberite M., Bonacquisti S., Giovi E., Iamonico D. & Scassellati E. 2012. Taxonomical and chorological diversity of native woody flora of Italy at regional scale. Bocconea 24: 169–175.
  • Abdoun F. & Beddiaf M. 2002. Cupressus dupreziana A. Camus: distribution, decline and regeneration on the Tassili n’Ajjer, Central Sahara. Comptes rendus Biologies 325: 617–627. https://doi.org/10.1016/S1631-0691(02)01433-6
  • Abdoun F., Gardner M. & Griffiths A. 2013. Cupressus dupreziana. The IUCN Red List of Threatened Species 2013: e.T30325A2792650. gmhj
  • Aissi A., Beghami Y., Lepais O. & Véla E. 2021. Analyse morphologique et taxonomique du complexe Quercus faginea (Fagaceae) en Algérie. Botany 99(2): 1–15. https://doi.org/10.1139/cjb-2020-0075
  • Altamirano A., Field R., Cayuela L., Aplin P., Lara A. & Rey-Benayas J.M. 2010. Woody species diversity in temperate Andean forests: the need for new conservation strategies. Biological Conservation 143(9): 2080–2091. https://doi.org/10.1016/j.biocon.2010.05.016
  • APD 2012–2020. African Plant Database. Conservatoire et Jardin botaniques de la Ville de Genève and South African National Biodiversity Institute. Available from http://www.ville-ge.ch/musinfo/bd/cjb/africa [accessed 7 Dec. 2020].
  • APG IV 2016. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181: 1–20. https://doi.org/10.1111/boj.12385
  • Ayache F., Santana V.M. & Baeza M.J. 2020. Environmental and anthropogenic drivers of coniferous species distribution in Mediterranean drylands from North West Algeria. Folia Geobotanica 55: 15–27. https://doi.org/10.1007/s12224-020-09362-8
  • Barbero M., Loisel R., Médail F. & Quézel P. 2001. Signification biogéographique et biodiversité des forêts du bassin méditerranéen. Bocconea 13: 11–25.
  • Battandier J. & Trabut L. 1888–1895. Flore d’Algérie. Dicotylédones. Adolphe Jourdan, Alger.
  • Battandier J. & Trabut L. 1895. Flore d’Algérie. Monocotylédones. Adolphe Jourdan, Alger.
  • Battandier J. & Trabut L. 1902. Flore analytique et synoptique de l’Algérie et de la Tunisie. Giralt, Alger.
  • Beech E. 2018. Tamarix boveana. The IUCN Red List of Threatened Species 2018: e.T79928148A123870302. gmhk
  • Beech E., Rivers M., Oldfield S. & Smith P.P. 2017. GlobalTreeSearch: the first complete global database of tree species and country distributions. Journal of Sustainable Forestry 36(5): 454–489. https://doi.org/10.1080/10549811.2017.1310049
  • Benchelah A.C., Bouziane H. & Maka M. 2006. Arbres et arbustes du Sahara. Voyages au cœur de leurs usages. Ibis Press, Paris.
  • Benhouhou S.S. 1991. Vegetation studies in the Algerian Sahara. PhD thesis, University of Sheffield, UK.
  • BGCI 2020. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, UK. Available from https://tools.bgci.org/global_tree_search.php [accessed 7 Dec. 2020].
  • Bihaoui A., Haddioui A. & Hammada S. 2020. Les erreurs d’identification des espèces du genre Tamarix L. au Maroc : clés non uniformes et espèces polymorphes. Ecologia Mediterranea 46(1): 49–61.
  • Carazo-Montijano M.M. 2006. Modelo de espectro corológico para el sur de la península Ibérica y Marruecos. Blancoana 21: 3–14.
  • Carazo-Montijano M.M. & Fernandez-Lopez C. 2006. Catálogo de las plantas vasculares de Andalucia y Marruecos. Herbario Jaén.
  • Cheikh Albassatneh M., Escudero M., Monnet A.C., et al. 2021. Spatial patterns of genus-level phylogenetic endemism in the tree flora of Mediterranean Europe. Diversity and Distributions 27(5): 913–928. https://doi.org/10.1111/ddi.13241
  • Christenhusz M.J.M., Reveal J.L., Farjon A., Gardner M.F., Mill R.R. & Chase M.W. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19: 55–70. https://doi.org/10.11646/phytotaxa.19.1.3
  • Dobignard A. 2009. Contributions à la connaissance de la flore du Maroc et de l’Afrique du Nord. Nouvelle série 2. Journal de Botanique, Société Botanique de France 46–47: 3–136.
  • Dobignard A. & Chatelain C. 2010–2013. Index synonymique et bibliographique de la Flore d’Afrique du Nord. Vols. 1–5. Conservatoire et Jardin botaniques de la Ville de Genève, Genève.
  • eflora Maghreb 2019–2020. eflora du Maghreb. Un projet en cours basé sur la “Nouvelle flore d’Algérie et des régions désertiques méridionales” de Quézel et Santa 1962–1963. Conservatoire et Jardin Botaniques de Genève, Genève. Available from https://efloramaghreb.org [accessed 7 Dec. 2020].
  • Ellenberg H. & Mueller-Dombois D. 1966. A key to Raunkiaer plant life forms with revised subdivisions. Berichte des Geobotanischen Institutes der Eidg. Techn. Hochschule, Stiftung Rübel 37: 56–73. https://doi.org/10.5169/seals-377651
  • FAO 2012. L’état des ressources génétiques forestières mondiales. Rapport national Algérie. Organisation des Nations Unies pour l’alimentation et l’agriculture, Rome.
  • Farjon A. 2013. Pinus pinaster subsp. renoui. The IUCN Red List of Threatened Species 2013: e.T63554A3127306. gmhm
  • Fennane M. 2017–2018. Eléments pour un livre rouge de la flore vasculaire du Maroc. Fasc. 2–10. Tela Botanica, Montpellier.
  • Fennane M. & Ibn Tattou M. 1999. Observations sur la flore vasculaire endémique, rare ou menacée du Maroc. Flora Mediterranea 9: 113–124.
  • GBIF 2020. Global Biodiversity Information Facility. Copenhagen. Available from http://gbif.org [accessed 30 Nov. 2020].
  • Géhu J.M., Meddour R., Kaabeche M. & Sadki N. 1998. Typologie hiérarchisée des principales unités phytosociologiques d’Algérie ou diversité des habitats biologiques d’Algérie. Secrétariat d’état chargé de l’environnement. FEM/PNUD, annexe n° 4, Alger/Bailleul.
  • Harfouche A., Nedjahi A., Ellatif M. & Daly-Hassen H. 2005. Les ressources génétiques forestières nord-africaines et leur conservation. Revue Forestière Française 57(1): 15–32. https://doi.org/10.4267/2042/5020
  • Husemann M., Schmitt T., Zachos F.E., Ulrich W. & Habel J.C. 2014. Evidence for the existence of a North African refugium for Western Palearctic biota. Journal of Biogeography 41: 81–94. https://doi.org/10.1111/jbi.12180
  • IUCN 2012. IUCN Red List Categories and Criteria. Version 3.1. Second edition. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK.
  • IUCN 2020. IUCN Red List of Threatened Species. Available from https://www.iucnredlist.org [accessed 8 Dec. 2020].
  • JORA 2012. Décret exécutif no 12-03 du 10 Safar 1433 correspondant au 4 janvier 2012 fixant la liste des espèces végétales non cultivées protégées. Journal officiel de la République Algérienne, n° 03 du 18 janvier 2012.
  • Kaabeche M., Moali A. & Benkheira A. 2011. Guide habitats, flore et faune des zones aride et saharienne. Altitude communication, Alger.
  • Khelifi H. 2002. Les formations forestières et préforestières des montagnes d’Algérie: diversité et sensibilité. INA (Institut National Agronomique).
  • Kyalangalilwa B., Boatwright J.S., Daru B.H., Maurin O. & Van der Bank M. 2013. Phylogenetic position and revised classification of Acacia s.l. (Fabaceae: Mimosoideae) in Africa, including new combinations in Vachellia and Senegalia. Botanical Journal of the Linnean Society 172: 500–523. https://doi.org/10.1111/boj.12047
  • Lapie G. & Maige A. 1914. Flore forestière illustrée : comprenant toutes les espèces ligneuses de l’Algérie et les espèces ligneuses les plus répandues en Tunisie, au Maroc et dans le Midi de la France. E. Orlhac, Paris. https://doi.org/10.5962/bhl.title.44687
  • Latini M., Bartolucci F., Conti F., et al. 2017. Detecting phytogeographic units based on native woody flora, a case study in Central Peninsular Italy. The Botanical Review 83(3): 253–281. https://doi.org/10.1007/s12229-017-9185-2
  • Le Houérou H.N. 1995. Bioclimatologie et biogéographie des steppes arides du Nord de l’Afrique : diversité biologique, développement durable et désertisation. CIHEAM, Options Méditerranéennes: Série B., Etudes et Recherches 10: 1–396.
  • Letourneux A. 1887. Catalogue des arbres, arbustes, arbrisseaux, plantes ligneuses ou sous-ligneuses de l’Algérie et de la Tunisie. Gouvernement général de l’Algérie. Giralt, Alger.
  • Macía J.M. 2008. Woody plants diversity, floristic composition and land use history in the Amazonian rain forests of Madidi National Park, Bolivia. Biodiversity and Conservation 17: 2671–2690. https://doi.org/10.1007/s10531-008-9348-x
  • Maire R. 1952–1987. Flore de l’Afrique du Nord. Vols. 1–16. Lechevalier, Paris,
  • Médail F. & Quézel P. 2018. Biogéographie de la flore du Sahara. Une biodiversité en situation extrême. IRD Éditions & Éditions des Conservatoire et jardin botaniques de Genève, Marseille.
  • Meddour R. 2010. Bioclimatologie, phytogéographie et phytosociologie en Algérie. Exemple des écosystèmes forestiers et préforestiers de la Kabylie djurdjuréenne. PhD thesis, Mouloud Mammeri University of Tizi Ouzou, Algeria.
  • Meddour R., Meddour-Sahar O. & Derridj A. 2011. The black pine of the Maghreb Pinus nigra Arn. subsp. mauretanica (Maire & Peyerimhoff) Heywood. In: Abstract book of Medpine 4. Fourth International Conference on Mediterranean Pines, Posters chapters: 187. Avignon.
  • Mehrabian A.R., Sayadi S., Majidi Kuhbenani M., Hashemi Yeganeh V. & Abdoljabari M. 2020. Priorities conservation of endemic trees and shrubs of Iran: Important Plant Areas (IPAs) and Alliance for Zero Extinction (AZE) in SW Asia. Journal of Asia-Pacific Biodiversity 13: 295–305. https://doi.org/10.1016/j.japb.2019.09.010
  • Nyasiri J., Tchobsala I.A. & Dongock Nguemo D. 2020. Floristic and phytogeographic analysis of the woody vegetation of the cliff of Ngaoundéré and its peripheries. World Journal of Advanced research and Reviews 5(2): 34–47. https://doi.org/10.30574/wjarr.2020.5.2.0098
  • O’Brien E.M. 1993. Climatic gradients in woody plant species richness: towards an explanation based on an analysis of southern Africa’s woody flora. Journal of Biogeography 20: 181–198. https://doi.org/10.2307/2845670
  • Ozenda P. 2004. Flore et végétation du Sahara. 3e édition. CNRS, Paris.
  • Palgrave M.C., Van Wyk A.E., Jordaan M., White J.A. & Sweet P. 2007. A reconnaissance survey of the woody flora and vegetation of the Catapu logging concession, Cheringoma District, Mozambique. Bothalia 37(1): 57–73. https://doi.org/10.4102/abc.v37i1.303
  • POWO 2019. Plants of the World Online. Royal Botanic Gardens, Kew, Richmond. Available from http://www.plantsoftheworldonline.org/ [accessed 8 Dec. 2020].
  • QGIS 2020. QGIS: free and Open Source Geographic Information System. Version 3.10.3. Available from https://qgis.org [accessed 5 Jul. 2021].
  • Quézel P. 1978. Analysis of the Flora of Mediterranean and Saharan Africa. Annals of the Missouri Botanical Garden 65(2): 479–534. http://www.jstor.org/stable/2398860
  • Quézel P. 1995. La flore du bassin méditerranéen: origine, mise en place, endémisme. Ecologia Mediterranea 21: 19–39.
  • Quézel P. 2000. Réflexions sur l’évolution de la flore et de la végétation au Maghreb méditerranéen. Ibis Press, Paris.
  • Quézel P. & Santa S. 1962–1963. Nouvelle Flore de l’Algérie et des régions désertiques méridionales. Vols. 1–2. CNRS, Paris.
  • Quézel P. & Barbero M. 1993. Variations climatiques au Sahara et en Afrique sèche depuis le Pliocène: enseignements de la flore et de la végétation actuelles. Bulletin d’Ecologie 24(2–4): 191–202.
  • Quézel P. & Médail F. 2003. Ecologie et biogéographie des forêts du bassin méditerranéen. Editions scientifiques et médicales. Elsevier/Lavoisier, Paris.
  • Quézel P., Médail F., Loisel R. & Barbero M. 1999. Biodiversity and conservation of forest species in the Mediterranean basin. Unasylva 197(50): 21–28. Available from http://www.fao.org/docrep/x1880e/x1880e05.htm [accessed 2 Jul. 2021].
  • Raunkiaer C. 1934. The life forms of plant and statistical plant geography. Oxford University Press, Oxford.
  • Rabinowitz D. 1981. Seven forms of rarity. In: Synge H. (ed.) The biological aspects of rare plant conservation: 205–217. Wiley, New York.
  • Sahki A. & Sahki R. 2004. Le Hoggar, promenade botanique. Atelier Ésope, Lyon.
  • Sahki A., Sahki R. & Boucheneb N. 2017. Guide des principaux arbres et arbustes du Sahara central (Ahaggar et Tassili). Caractéristiques, utilisations, modes de reproduction et de plantation. Institut national de recherche forestière, Alger.
  • Selkh C. 2012. Contribution à l’étude phytoécologique du pourtour de l’erg occidental. Magister thesis, University of Oran, Algeria.
  • Somon E. 1987. Arbres, arbustes et arbrisseaux en Algérie. Office des Publications Universitaires, Alger.
  • Soulé M., Bassiro I.D., Matalabi A.A. & Mahamane S. 2016. Systematic composition, life forms and chorology of Parklands of commune of Mayahi, Niger, West Africa. Asian Journal of Biology 1(1): 1–11. https://doi.org/10.9734/AJOB/2016/30473
  • Stevenson A.C., Skinner J., Hollis G.E. & Smart M. 1988. The El Kala National Park and environs, Algeria: an ecological evaluation. Environmental Conservation 15(4): 335–348. https://doi.org/10.1017/S0376892900029830
  • Taib A., Morsli A., Chojnacka A., et al. 2020. Patterns of genetic diversity in North Africa: Moroccan-Algerian genetic split in Juniperus thurifera subsp. africana. Scientific Reports 10: 4810. https://doi.org/10.1038/s41598-020-61525-x
  • The Euro+Med PlantBase 2006–2020. The information resource for Euro-Mediterranean plant diversity. Botanic Garden and Botanical Museum Berlin-Dahlem, Berlin. Università degli Studi di Palermo, Palermo. Available from http://ww2.bgbm.org/EuroPlusMed/query.asp [accessed 8 Dec. 2020].
  • Trabut L. 2015. Répertoire des noms des plantes du Maghreb (arabe, berbère, latin, français). Livres Editions, Alger.
  • Véla E. & Benhouhou S. 2007. Evaluation d’un nouveau point chaud de biodiversité végétale dans le Bassin méditerranéen (Afrique du Nord). Comptes Rendus Biologies 330(8): 589–605. https://doi.org/10.1016/j.crvi.2007.04.006
  • Xystrakis F., Mitsios-Antonakos D., Eleftheriadou E., Dimopoulos P. & Theodoropoulos K. 2019. Inter-regional beta-diversity patterns of the woody flora of Greece. Annals of Forest Research 62(1): 33–50. https://doi.org/10.15287/afr.2018.1077
  • Yahi N., Knees S. & Gardner M. 2011. Abies numidica. The IUCN Red List of Threatened Species 2011: e.T30320A9534972. gmhn
  • Yahi N., Véla E., Benhouhou S., De Belair G. & Gharzouli R. 2012. Identifying Important Plants Areas (Key Biodiversity Areas for Plants) in northern Algeria. Journal of Threatened Taxa 4(8): 2753–2765. https://doi.org/10.11609/JoTT.o2998.2753-65