Fig. 2From: Individual vulnerability factors of Silver fir (Abies alba Mill.) to parasitism by two contrasting biotic agents: mistletoe (Viscum album L. ssp. abietis) and bark beetles (Coleoptera: Curculionidae: Scolytinae) during a decline processRelationship between mistletoe age and log-transformed mistletoe biomass, Mont-Ventoux, France. The equation of trend curve was a logarithmic form: f(x) = 5.75 ln(x) – 8.01; R 2 = 0.85Back to article page