Figure 7: Distance-based redundancy analysis (dbRDA) ordination
for composition of flowering species smaller than the median height
(‘median’, N = 26, <83cm) with mean light penetration as a
constrained axis. Light penetration (‘LP’, grey arrow) explained 4.2%
of the total variation in ‘median’ species flowering abundance among
plots (dbRDA1, P = 0.031, pseudo-F1,49=2.06).
Each point represents a plot. Species abbreviations are as follows: BarBarbarea vulgaris ; Cer Cerastium fontanum ; ChrChrysanthemum leucanthemum ; Cli Clinopodium vulgare ; DanDanthonia spicata ; Ele Eleocharis compressa ; EquEquisetum arvense ; Fra Fragaria virginiana ; HieHieracium aurantiacum ; Jun Juncus tenuis ; MitMitchella repens ; Oen Oenothera perennis ; Oxa Oxalis
stricta ; Pan Panicum capillare ; P.la Plantago lanceolata ;
P.ma Plantago major ; Poa pratensis ; Pot Potentilla
recta ; Pru Prunella vulgaris ; Rum Rumex acetosella ; SisSisyrinchium montanum ; Ste Stellaria graminea ; TarTaraxacum officinale ; Tra Tragopogon pratensis ; T.auTrifolium aureum ; T.re Trifolium repens .