Non-metric Multidimensional Scaling (NMDS) ordination based on Bray-Curtis dissimilarities calculated from species cover data across all subplots (Stress value = 0.16). Panel A displays the subplots (empty circles) with ellipses highlighting the spatial aggregation of the three vegetation macrocategories. Panel B presents the 50 most frequent species with their labels. In both panels, black arrows represent significant environmental vectors related to the cover of Natura 2000 habitats and Opuntia stricta, while filled circles indicate the centroids of the vegetation macrocategories. Colors correspond to vegetation macrocategories: low garrigue (blue-cyan), low maquis (green), and coastal vegetation (violet). Air_car = Aira caryophyllea; Ani_mad = Anisantha madritensis; Ari_vul = Arisarum vulgare subsp. vulgare; Asp_acu = Asparagus acutifolius; Asp_ram = Asphodelus ramosus subsp. ramosus; Ave_bar = Avena barbata; Bra_dis = Brachypodium distachyon; Bra_ret = Brachypodium retusum; Cen_mar = Centaurium maritimum; Cis_mon = Cistus monspeliensis; Col_myc = Coleostephus myconis; Cyn_ech = Cynosurus echinatus; Cyt_lan = Cytisus laniger; Dac_glo = Dactylis glomerata; Dau_car = Daucus carota; Eup_den = Euphorbia dendroides; Fes_amb = Festuca ambigua; Fes_myu = Festuca myuros subsp. myuros; Gal_tom = Galactites tomentosus; Gal_div = Galium divaricatum; Gal_ver = Galium verrucosum; Gas_ven = Gastridium ventricosum; Gau_fra = Gaudinia fragilis; Ger_rot = Geranium rotundifolium; Hed_rha = Hedypnois rhagadioloides; Hel_ita = Helichrysum italicum; Hyp_ach = Hypochaeris achyrophorus; Lin_usi = Linum usitatissimum subsp. angustifolium; Lot_cyt = Lotus cytisoides; Lot_edu = Lotus edulis; Lys_arv = Lysimachia arvensis; Mac_max = Macrobriza maxima; Opu_str = Opuntia stricta; Par_ech = Paronychia echinulata; Pet_rup = Petrosedum rupestre; Pis_len = Pistacia lentiscus; Pla_afr = Plantago afra; Pla_bel = Plantago bellardii; Pol_cam = Polypodium cambricum; Sil_gal = Silene gallica; Son_bul = Sonchus bulbosus subsp. bulbosus; Squ_mar = Squilla maritima; Sti_cap = Stipellula capensis; Teu_mar = Teucrium marum; Tri_arv = Trifolium arvense; Tri_cam = Trifolium campestre; Tri_sca = Trifolium scabrum; Umb_rup = Umbilicus rupestris; Vic_ben = Vicia benghalensis; Vic_dis = Vicia disperma.