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Vegetation history of the western Rif mountains (NW Morocco): origin, late-Holocene dynamics and human impact

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Abstract

Unlike southern Spain, northern Morocco has been little investigated for palaeoecological purposes. Consequently, the origin and history of the Rifan vegetation is largely unknown, as well as the past role of human activities. A review of the Plio-Pleistocene fossil data available from North Africa clearly reveals the ancient origin of much of the present-day flora and vegetation structures of the region. A well-dated pollen record covering the last 5,000 years, obtained from a fen, is compared to previous regional pollen data in order to understand the late-Holocene vegetation dynamics and the influence of anthropogenic disturbances. Modern pollen spectra have allowed the calibration of pollen diversity and evenness as indicators of tree-cover density. The results obtained show the long-term persistence of regional forests until the onset of Arab Sharifian dynasties in the 16th century, with a surprising lack of human impact during the late Neolithic, and little impact during Roman colonisation. The increasing density of deciduous forests recorded from 3,800 to 1,900 cal bp, concomitant with the expansion of cedar in the Middle Atlas, could reveal the onset of widespread cooler and moister climatic conditions. The weak and late human impact in the Rifan mountains explains, at least in part, their high diversity and the conservation of their forest ecosystems. Anthropogenic activities however have led to severe modification of the understorey structure of these forests during the four last centuries, and to the worrying on-going deforestation that presently threatens the survival of this invaluable biological heritage.

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References

  • Abramoff MD, Magalhaes PJ, Ram SJ (2004) Image Processing with ImageJ. Biophotonics Int 11:36–42

    Google Scholar 

  • Ajbilou R, Marañón T, Arroyo J (2006) Ecological and biogeographical analyses of Mediterranean forests of northern Morocco. Acta Oecol 29:104–113

    Article  Google Scholar 

  • Alba-Sánchez F, López-Sáez JA, Benito-de Pando B, Linares JC, Nieto-Lugilde D, López-Merino L (2010) Past and present potential distribution of the Iberian Abies species: a phytogeographic approach using fossil pollen data and species distribution models. Div Distrib 16:214–228

    Article  Google Scholar 

  • Arambourg C, Arènes J, Depape G (1953) Contribution à l’étude des flores fossiles quaternaires de l’Afrique du Nord. Arch Mus Hist Nat Paris 7:1–85

    Google Scholar 

  • Arroyo J (1997) Plant diversity in the region of the Strait of Gibraltar: a multilevel approach. Lagascalia 19:393–404

    Google Scholar 

  • Bachiri Taoufiq N, Bahroun N, Suc J-P, Méon H, Elaouad Z, Benbouziane A (2001) Environnement, végétation et climat du Messinien au Maroc. Paleontol Evol 32–33:127–138

    Google Scholar 

  • Ballouche A, Marinval P (2003) Données palynologiques et carpologiques sur la domestication des plantes et l’agriculture dans le Néolithique ancien du Maroc septentrional (site de Kaf That El-Ghar). Rev Archéométrie 27:49–54

    Article  Google Scholar 

  • Beaudouin C, Suc J-P, Cambon G, Touzani A, Giresse P, Pont D, Aloïsi J-C, Marsset T, Cochonat P, Duzer D, Ferrier J (2005) Present-day rhythmic deposition in the Grand Rhone prodelta (NW Mediterranean) according to high-resolution pollen analyses. J Coast Res 21:292–306

    Article  Google Scholar 

  • Beaudouin C, Suc J-P, Escarguel G, Arnaud M, Charmasson S (2007) The significance of pollen signal in present-day marine terrigenous sediments: the example of the Gulf of Lions (western Mediterranean Sea). Geobios 40:159–172

    Article  Google Scholar 

  • Benabid A (2000) Flore et écosystèmes du Maroc. Evaluation et préservation de la biodiversité. Ibis Press, Paris

    Google Scholar 

  • Benslama M, Andrieu-Ponel V, Guiter F, Reille M, De Beaulieu J-L, Migliore J, Djamali M (2010) Nouvelles contributions à l’histoire tardiglaciaire et holocène de la végétation en Algérie: analyses polliniques de deux profils sédimentaires du complexe humide d’El-Kala. CR Biol 333:744–754

    Article  Google Scholar 

  • Ben Tiba B, Reille M (1982) Recherches pollenanalytiques dans les montagnes de Kroumirie (Tunisie septentrionale): premiers résultats. Ecol Mediterr 8:75–86

    Google Scholar 

  • Berglund BE, Ralska-Jasiewiczowa M (1986) Pollen analysis and pollen diagrams. In: Berglund BE (ed) Handbook of holocene palaeoecology and palaeohydrology. Wiley, Chichester, pp 455–484

    Google Scholar 

  • Beucher F (1967a) Quelques éléments de flore pliocène au Sahara nord-occidental. CR Acad Sci (Paris) 265:1,117–1,120

  • Beucher F (1967b) Une flore d’âge ougartien (seconde partie du Quaternaire moyen) dans les Monts d’Ougarta (Sahara Nord-Occidental). Rev Palaeobot Palynol 2:291–300

    Article  Google Scholar 

  • Birks HJB, Birks HH (1980) Quaternary Palaeoecology. Arnold, London

    Google Scholar 

  • Callegarin L (2008) La côte maurétanienne et ses relations avec le littoral de la Bétique (fin du IIIe siècle a.C.-Ier siècle p.C.). Mainake 30:289–328

    Google Scholar 

  • Calleja JA, Benito Garzón M, Sainz Ollero H (2009) A Quaternary perspective on the conservation prospects of the tertiary relict tree Prunus lusitanica L. J Biogeogr 36:487–498

    Article  Google Scholar 

  • Carrión JS, Fernández S, Jiménez-Moreno G, Fauquette S, Gil-Romera G, González-Samériz P, Finlayson C (2010) The historical origins of aridity and vegetation degradation in southeastern Spain. J Arid Environ 74:731–736

    Article  Google Scholar 

  • Cheddadi R, Lamb H, Guiot J, Van der Kaars S (1998) Holocene climatic change in Morocco: a quantitative reconstruction from pollen data. Clim Dyn 14:883–890

    Article  Google Scholar 

  • Cheddadi R, Fady B, François L, Hajar L, Suc J-P, Huang K, Demarteau M, Vendramin GG, Ortu E (2009) Putative glacial refugia of Cedrus atlantica from quaternary pollen records and modern genetic diversity. J Biogeogr 36:1,361–1,371

  • Dahlgren R, Lassen P (1972) Studies in the Flora of Northern Morocco. I. Some poor fen communities and notes on a number of northern and Atlantic plant species. Bot Not 125:439–464

    Google Scholar 

  • Damblon F (1991) Contribution pollenanalytique à l’histoire des forêts de chêne liège au Maroc: La subéraie de Krimda. In: Ballouche A, Maley J (eds) Proceedings of the 1st symposium of African palynology. Palaeoecology of Africa and the surrounding islands 22, Brookfield, Rotterdam, pp 171–183

  • David F, Barbero M (2001) Les érables dans l’étage subalpin: une longue histoire. CR Acad Sci III 324:159–164

    Article  Google Scholar 

  • Davis MB, Brubaker LB, Webb T III (1973) Calibration of absolute pollen influx. In: Birks HJB, Wet RG (eds) Quaternary plant ecology. Blackwell, Oxford, pp 9–25

    Google Scholar 

  • Deil U, Frosch B, Jackle H, Mhamdi A, Achhal A (2009) A geobotanical analysis of forest patches on sacred sites in Northern Morocco. Ber Reinhold-Tüxen Ges 21:174–195

  • Ducellier L (1925) Contribution à la flore fossile de l’Afrique du Nord. Bull Soc Hist Nat Afr Nord 13:178–186

    Google Scholar 

  • Fægri K, Iversen J (1989) In: Fægri K, Kaland PE, Krzywinski K (eds) Textbook of pollen analysis, 4th edn. Wiley, Chichester

    Google Scholar 

  • Feddi N, Fauquette S, Suc J-P (2011) Histoire plio-pléistocène des écosystèmes végétaux de Méditerranée sud-occidentale: apport de l’analyse pollinique de deux sondages en Mer d’Alboran. Geobios 44:57–69

    Article  Google Scholar 

  • Fennane M, Ibn Tattou M (2005) Flore vasculaire du Maroc, inventaire et chorologie, vol 1. Travaux de l’Institut Scientifique, Série Botanique 37. Institut Scientifique, Rabat

  • Fennane M, Ibn Tattou M, Mathez J, Ouyahya A, El Oualidi J (1999) Flore pratique du Maroc. Manuel de détermination des plantes vasculaires, vol 1. Travaux de l’Institut Scientifique, Série Botanique 36. Institut Scientifique, Rabat

  • Fennane M, Ibn Tattou M, Ouyahya A, El Oualidi J (2007) Flore pratique du Maroc. Manuel de détermination des plantes vasculaires, vol 2. Travaux de l’Institut Scientifique, Série Botanique 38. Institut Scientifique, Rabat

  • Gartet J, Ballais J-L, Gartet A, Fontugne M (2001) Polémique autour de la datation de la terrasse rharbienne. Apport de la très basse terrasse de l’Ouerrha, Rif (Maroc). In: Barrandon J-L, Guibert P, Michel V (eds) 21e rencontres internationales d’archéologie et d’histoire d’Antibes. APDCA, Antibes, pp 361–368

    Google Scholar 

  • Goeury C (1997) GPalWin: gestion, traitement et représentation des données de la paléoécologie. In: Actes du XVe symposium de l’APLF. APLF, Lyon, p 31

  • Grau-Almero E (2011) Charcoal analysis from Lixus (Larache, Morocco). In: Badal E, Carrion Y, Grau E, Macias M, Ntinou M (eds) The charcoal as cultural and biological heritage: 5th international meeting of charcoal analysis. Saguntum Extra 11, València, pp 107–108

  • Guerrera F, Martin-Algarra A, Perrone V (1993) Late Oligocene–Miocene syn/late-orogenic successions in western and central Mediterranean chains from the Betic cordilleras to the southern Apennines. Terra Nova 5:525–544

    Article  Google Scholar 

  • Hammer Ø, Harper DAT, Ryan PD (2001) PAST: paleontological statistics software package for education and data analysis. Paleontol Electron 4:1–9

    Google Scholar 

  • Hampe A (2005) Fecundity limits in Frangula alnus (Rhamnaceae) relict populations at the species’ southern range margin. Oecologia 143:377–386

    Article  Google Scholar 

  • Hampe A, Arroyo J (2002) Recruitment and regeneration in populations of an endangered South Iberian tertiary relict tree. Biol Conserv 107:263–271

    Article  Google Scholar 

  • Heiri O, Lotter AF, Lemcke G (2001) Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. J Paleolimnol 25:101–110

    Article  Google Scholar 

  • Ibn Tattou M, Fennane M (2008) Flore vasculaire du Maroc, inventaire et chorologie, vol 2. Travaux de l’Institut Scientifique, Série Botanique 39. Institut Scientifique, Rabat

  • Jaramillo-Correa JP, Grivet D, Terrab A, Kurt Y, De-Lucas AI, Wahid N, Vendramin GG, González-Martínez SC (2010) The Strait of Gibraltar as a major biogeographic barrier in Mediterranean conifers: a comparative phylogeographic survey. Mol Ecol 19:5,452–5,468

  • Jean-Léon l’Africain (1956) Description de l’Afrique, nouvelle édition traduite de l’italien par A. Épaulard, Adrien-Maisonneuve, Paris

    Google Scholar 

  • Lamb HF, van der Kaars S (1995) Vegetational response to Holocene climatic change: pollen and palaeolimnological data from the Middle Atlas, Morocco. Holocene 5:400–408

    Article  Google Scholar 

  • Lamb HF, Eicher U, Switsur VR (1989) An 18,000-year record of vegetation, lake-level and climatic change from Tigalmamine, Middle Atlas, Morocco. J Biogeogr 16:65–74

    Article  Google Scholar 

  • Lamb HF, Damblon F, Maxted RW (1991) Human impact on the vegetation of the Middle Atlas, Morocco, during the last 5,000 years. J Biogeogr 18:519–532

    Article  Google Scholar 

  • Lamb HF, Roberts N, Leng MJ et al (1999) Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation. J Paleolimnol 21:325–343

    Article  Google Scholar 

  • Lepais O, Muller SD, Ben Saad-Limam S et al (2013) High genetic diversity and distinctiveness of rear-edge climate relicts maintained by ancient tetraploidisation for Alnus glutinosa Gaertn. Plos One 8:e75029

    Article  Google Scholar 

  • Linares JC (2011) Biogeography and evolution of Abies (Pinaceae) in the Mediterranean basin: the roles of long-term climatic change and glacial refugia. J Biogeogr 38:619–630

    Article  Google Scholar 

  • Marañón T, Ajbilou R, Ojeda F, Arroyo J (1999) Biodiversity of woody species in oak woodlands of southern Spain and northern Morocco. For Ecol Manag 115:147–156

    Article  Google Scholar 

  • Médail F, Quézel P (1997) Hot-spots analysis for conservation of plant biodiversity in the Mediterranean basin. Ann Mo Bot Gard 84:112–127

    Article  Google Scholar 

  • Mejías JA, Arroyo J, Marañón T (2007) Ecology and biogeography of plant communities associated with the post Plio–Pleistocene relict Rhododendron ponticum subsp. baeticum in southern Spain. J Biogeogr 34:456–472

    Article  Google Scholar 

  • Menendez Amor J, Florschütz F (1962) Un aspect de la végétation en Espagne méridionale durant la dernière glaciation et l’Holocène. Geol Mijnbouw 41:131–134

    Google Scholar 

  • Menendez Amor J, Florschütz F (1964) Results of the preliminary palynological investigation of samples from a 50 m boring in southern Spain. Bol R Soc Esp Hist Nat (Geol) 62:251–255

    Google Scholar 

  • Moreno A, Pérez A, Frigola J et al (2012) The Medieval climate anomaly in the Iberian Peninsula reconstructed from marine and lake records. Quat Sci Rev 43:16–32

    Article  Google Scholar 

  • Muller SD, Nakagawa T, De Beaulieu J-L, Court-Picon M, Fauquette S, Genries A (2006) Paléostructures de végétation à la limite supérieure des forêts, dans les Alpes françaises internes. CR Biol 329:502–511

    Article  Google Scholar 

  • Muller SD, Nakagawa T, De Beaulieu J-L et al (2007) Postglacial migration of silver fir (Abies alba Mill.) in the southwestern Alps. J Biogeogr 34:876–899

    Article  Google Scholar 

  • Muller SD, Rhazi L, Saber E-R et al (2011) Peat mosses (Sphagnum) and related plant communities of North Africa. II. The Tingitanean-Rifan range (northern Morocco). Nova Hedwigia 93:335–352

    Article  Google Scholar 

  • Muller SD, Miramont C, Bruneton H et al (2012) A palaeoecological perspective for the conservation and restoration of wetland plant communities in the central French Alps, with particular emphasis on alder carr vegetation. Rev Palaeobot Palynol 171:124–139

    Article  Google Scholar 

  • Nakagawa T, De Beaulieu J-L, Kitagawa H (2000) Pollen-derived history of timber exploitation from the Roman period onwards in the Romanche valley, central French Alps. Veget Hist Archaeobot 9:85–89

    Article  Google Scholar 

  • Ojeda F, Marañón T, Arroyo J (1996) Patterns of ecological, chorological and taxonomic diversity on both sides of the Strait of Gibraltar. J Veg Sci 7:63–72

    Article  Google Scholar 

  • Park TK, Boum A (2005) Historical dictionary of Morocco. Scarecrow Press, Lanham

    Google Scholar 

  • Pons A, Quézel P (1958) Premières remarques sur l’étude palynologique d’un guano fossile du Hoggar. CR Acad Sci 244:2,290–2,292

  • Ponsich M (1964) Exploitation agricole romaine de la région de Tanger. Bull Archéol Marocaine 5:235–252

    Google Scholar 

  • Puy A, Balbo AL, Virgili A, Kirchner H (2014) The evolution of Mediterranean wetlands in the first millennium ad: the case of Les Arenes floodplain (Tortosa, NE Spain). Geoderma 232–234:219–235

    Article  Google Scholar 

  • Quézel P (2000) Réflexions sur l’évolution de la flore et de la végétation au Maghreb méditerranéen. Ibis Press, Paris

    Google Scholar 

  • Quézel P, Barbero M (1990) Les forêts méditerranéennes : problèmes posés par leur signification historique, écologique et leur conservation. Acta Bot Malacitana 15:145–178

    Google Scholar 

  • Quézel P, Martinez C (1958) Etude palynologique de deux diatomites du Borkou (Territoire du Tchad A.E.F.). Bull Soc Hist Nat Afr Nord 49:230–244

    Google Scholar 

  • Quézel P, Médail F (2003) Ecologie et biogéographie des forêts du bassin méditerranéen. Elsevier, Paris

    Google Scholar 

  • R Development Core Team (2005) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. http://www.R-project.org/. Accessed 31 Jan 2013

  • Rebuffat R (1986) Recherches sur le bassin du Sebou (Maroc). CR Acad Inscr B-Lett 130:633–661

  • Reille M (1977) Contribution pollenanalytique à l’histoire holocène de la végétation des montagnes du Rif (Maroc septentrional). Recherches françaises sur le Quaternaire (INQUA). Supplément au Bulletin AFEQ 50:53–76

    Google Scholar 

  • Reille M, Andrieu V, De Beaulieu J-L (1996) Les grands traits de l’histoire de la végétation des montagnes méditerranéennes occidentales. Écologie 27:153–169

    Google Scholar 

  • Reimer PJ, Bard E, Bayliss A et al (2013) IntCal13 and marine13 radiocarbon age calibration curves, 0–50,000 years cal bp. Radiocarbon 55:1,869–1,887

  • Rhoujjati A, Cheddadi R, Taïeb M, Baali A, Ortu E (2010) Environmental changes over the past c. 29,000 years in the Middle Atlas (Morocco): a record from Lake Ifrah. J Arid Environ 74:737–745

    Article  Google Scholar 

  • Rodríguez-Ariza MO (1992) Human plant relationships during the Copper and Bronze Ages in the Baza and Guadix basins (Granada, Spain). Bull Soc Bot Fr 139:451–464

    Google Scholar 

  • Rodríguez-Sánchez F, Pérez-Barrales R, Ojeda F, Vargas P, Arroyo J (2008) The Strait of Gibraltar as a melting pot for plant biodiversity. Quat Sci Rev 27: 2,100–2,117

  • Salamani M (1993) Premières données paléophytogéographiques du cèdre de l’Atlas (Cedrus atlantica) dans la région de grande Kabylie (NE Algérie). Palynosciences 2:147–155

    Google Scholar 

  • Sauvage C (1958) Intérêt biogéographique du Bou-Hachem (Rif occidental). Bull Soc Sci Nat Physiol Maroc 38:17–26

    Google Scholar 

  • Stambouli-Essassi S, Roche E, Bouzid S (2007) Evolution de la végétation et du climat dans le Nord-Ouest de la Tunisie au cours des 40 derniers millénaires. Geo Eco Trop 31:171–214

    Google Scholar 

  • Stuiver M, Reimer PJ (1993) Extended 14C database and revised CALIB radiocarbon calibration program. Radiocarbon 35:215–230

    Google Scholar 

  • Suc J-P, Fauquette S, Bessedik M et al (1999) Neogene vegetation changes in west European and west circum-Mediterranean areas. In: Agusti J, Rook L, Andrews P (eds) Hominid evolution and climatic change in Europe, vol 1., Climatic and environmental change in the Neogene of EuropeCambridge University Press, Cambridge, pp 378–388

    Chapter  Google Scholar 

  • Taiqui L (1997) La dégradation écologique au Rif marocain: nécessités d’une nouvelle approche. Mediterranea 16:5–17

    Google Scholar 

  • Taiqui L, Cantarino CM (1997) Eléments historiques d’analyse écologique des paysages montagneux du Rif Occidental (Maroc). Mediterranea 16:23–35

    Google Scholar 

  • Taleb MS, Fennane M (2011) Morocco. In: Radford EA, Catullo G, De Montmollin B (eds) Important plant areas of the south and east Mediterranean region, priority sites for conservation. IUCN, Gland, pp 22–26

    Google Scholar 

  • Tauber H (1965) Differential pollen dispersion and the interpretation of pollen diagrams. Danm Geol Unders Raekke 2:69

    Google Scholar 

  • Terrab A, Schönswetter P, Talavera S, Vela E, Stuessy TF (2008) Range-wide phylogeography of Juniperus thurifera L., a presumptive keystone species of western Mediterranean vegetation during cold stages of the Pleistocene. Mol Phylogenet Evol 48:94–102

    Article  Google Scholar 

  • Thinon M, Ballouche A, Reille M (1996) Holocene vegetation of the central Saharan mountains: the end of a myth. Holocene 6:457–462

    Article  Google Scholar 

  • Valdès B, Rejdali M, Achhal El Kadmiri A, Jury JL, Montserrat JM (eds) (2002) Checklist of vascular plants of N Morocco with identification keys, vol 2. Consejo superior de investigaciones cientificas, Madrid

    Google Scholar 

  • Van Campo E (1977) Une flore sporopollinique du gisement pliocène du lac Ichkeul (Tunisie). Suppl Bull AFEQ 50:77–80

    Google Scholar 

  • Van Campo ERC (1978) Paléoflores et paléoclimats néogènes au nord-est de la Tunisie. Unpublished Doctoral Thesis, Université des Sciences et Techniques du Languedoc, Montpellier

  • Van Campo M (1964) Quelques pollens pléistocènes nouveaux pour le Hoggar. CR Acad Sci (Paris) 258:1,297–1,299

  • Van den Brink LM, Janssen CR (1985) The effect of Human activities during cultural phases on the development of montane vegetation in the Serra da Estrela, Portugal. Rev Palaeobot Palynol 44:193–215

    Article  Google Scholar 

  • Walanus A, Nalepka D (1999) POLPAL. Program for counting pollen grains, diagrams plotting and numerical analysis. Acta Palaeobot Suppl 2:659–661

    Google Scholar 

  • Warny S (1999) Marine and continental environmental changes in the Gibraltar arc area during the late Neogene (8–2.7 Ma) linked to the evolution of global climate and to Atlantic Ocean–Mediterranean Sea relationships. A palynological contribution to the Mediterranean salinity crisis through dinoflagellate cysts and pollen analysis. PhD Thesis, Univ. Catholique de Louvain, Belgium

  • Wildi W (1983) La chaîne tello-rifaine (Algérie, Maroc, Tunisie): structure stratigraphique et évolution du Trias au Miocène. Rev Géol Dyn Géogr Phys 24:201–297

    Google Scholar 

  • Zielhofer C, Linstädter J (2006) Short-term mid-Holocene climatic deterioration in the West Mediterranean region: climatic impact on Neolithic settlement pattern? Z Geomorphol NF Suppl 142:1–17

    Google Scholar 

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Acknowledgments

We thank Lucie Chabal for charcoal identification, Laurent Callegarin and Patrice Cressier for helpful comments on an earlier version of the manuscript, Mandak Bohumil for information about recently found tetraploid alder populations in southern Spain, and Alex Chepstow-Lusty for editing. We also address our grateful thanks to the two anonymous reviewers and the copy editor, whose comments were greatly appreciated. The present work is part of the project Medyna (FP7-PEOPLE-2013-IRSES). This publication is the contribution ISE-M no 2014-157.

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Muller, S.D., Rhazi, L., Andrieux, B. et al. Vegetation history of the western Rif mountains (NW Morocco): origin, late-Holocene dynamics and human impact. Veget Hist Archaeobot 24, 487–501 (2015). https://doi.org/10.1007/s00334-014-0504-9

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