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| Macchia mediterranea | |
|---|---|
| Name | Macchia mediterranea |
| Biome | Mediterranean forests, woodlands, and scrub |
| Climate | Mediterranean climate |
| Major habitats | Shrubland, maquis, garrigue |
| Countries | Italy, Spain, France, Greece, Portugal, Morocco, Algeria, Tunisia, Lebanon, Israel, Turkey |
Macchia mediterranea Macchia mediterranea is a sclerophyllous shrubland type characteristic of the Mediterranean Basin, the Iberian Peninsula, the Italian Peninsula and parts of the Levant and Maghreb. It forms dense evergreen scrub dominated by hard-leaved shrubs and small trees adapted to summer drought and winter rainfall, occurring across coastal belts and inland plateaus influenced by the Mediterranean climate, Tyrrhenian Sea winds, and regional biogeographic history involving the Messinian salinity crisis and Pleistocene glaciation.
Macchia mediterranea denotes dense evergreen shrub formations known in French as maquis and in Provençal as macchia, associated with the broader Mediterranean sclerophyllous biome and contrasted with open phrygana, garrigue, and holm oak woodlands like those dominated by Quercus ilex and Quercus suber. Characteristic traits include sclerophylly, deep rooting, resprouting capacity, lignotubers, aromatic volatile oils, and seed persistence strategies seen across taxa such as Pistacia lentiscus, Arbutus unedo, Erica arborea, Cistus albidus and Rosmarinus officinalis populations. Structural variation ranges from low shrubland to tall maquis with emergent trees, depending on soil depth, past land use linked to Neolithic farming and historical grazing by Capra aegagrus hircus and Bos taurus.
Macchia occurs throughout the Mediterranean Basin including Catalonia, Provence-Alpes-Côte d'Azur, Sicily, Sardinia, Corsica, Peloponnese, the Balearic Islands, Algarve, Atlas Mountains foothills and coastal plains of Levantine coast states such as Lebanon and Israel. Local distribution reflects the Köppen climate classification Csa/Csb regimes, maritime influences from the Mediterranean Sea, rain-shadow effects from ranges like the Sierra Nevada (Spain), and edaphic conditions on calcareous, volcanic, or serpentinite substrates that modulate community composition observed in regions affected by the Vandals and Roman Empire land-use legacies.
Floristic assemblages include evergreen sclerophylls such as Quercus ilex, Quercus coccifera, Arbutus unedo, Pistacia lentiscus, Myrtus communis, Juniperus phoenicea, Ceratonia siliqua, and a diverse shrub and herb layer comprising Cistoideae species, Erica species, Lamiaceae like Lavandula stoechas and Thymus vulgaris, and geophytes persisting from Tertiary relict lineages. Phytosociological classifications reference associations described by 19th- and 20th-century botanists connected to floras such as those of Flora Europaea, Flora Iberica, Flora Italiana, and regional checklists compiled by institutions like the Royal Botanic Gardens, Kew and the Muséum national d'histoire naturelle.
Macchia supports high levels of biodiversity with endemic and relict taxa tied to Mediterranean refugia, providing habitat for vertebrates like Alectoris rufa, Capreolus capreolus, Vulpes vulpes and invertebrates including specialized pollinators studied by researchers at the Natural History Museum, London and universities such as Università di Pisa and Universitat de Barcelona. Ecosystem functions include soil stabilization, carbon sequestration in aboveground biomass and soil organic matter, nutrient cycling mediated by mycorrhizae and nitrogen-fixing legumes such as Cytisus scoparius relatives, and provision of ecosystem services valued by the European Union biodiversity frameworks and conventions like the Bern Convention.
Fire is a central disturbance in macchia dynamics, with frequent crown and surface fires shaped by fuel continuity of flammable resins and oils in species like Cistus ladanifer and Rosmarinus officinalis, historical ignition patterns linked to human activities from Neolithic clearing to modern tourism, and climatic drivers related to Mediterranean cyclone variability and heatwaves exacerbated by Anthropocene warming. Vegetation responses include obligate seeding, resprouting from lignotubers, and post-fire recruitment patterns documented in fire ecology studies at institutions such as INRAE and the Mediterranean Agronomic Institute of Zaragoza.
Macchia landscapes have been shaped by millennia of human use including pastoralism, charcoal production, cork extraction tied to Quercus suber, cultivation of olives and vineyards associated with Olea europaea and Vitis vinifera, and modern pressures from urbanization around metropoles like Barcelona, Marseille, Rome, and Athens. Cultural practices include traditional agro-silvo-pastoral systems recognized by organizations like the Food and Agriculture Organization and intangible heritage tied to regional cuisines, herbal medicine traditions involving Rosmarinus officinalis and Satureja montana, and landscape representations in art by figures such as Paul Cézanne.
Threats to macchia include land abandonment, expansion of intensive agriculture and infrastructure associated with policies of the European Union Common Agricultural Policy, invasive species management challenges exemplified by Acacia dealbata and Ailanthus altissima, altered fire regimes intensified by climate change under scenarios assessed by the Intergovernmental Panel on Climate Change, and habitat fragmentation from coastal development near sites like the Côte d'Azur. Conservation responses involve protected area designations under the Natura 2000 network, restoration projects by NGOs such as BirdLife International and governmental agencies including Ministero dell'Ambiente (Italy), ex situ conservation in botanic gardens like Jardí Botànic de Barcelona, and research partnerships across universities and institutes to maintain genetic diversity and ecosystem services.