Phenological patterns of Oreopanax fulvus (Araliaceae) in remnants of Araucaria Rainforest in Paraná, Brazil

Abstract Oreopanax fulvus is a species endemic to the Brazilian Atlantic Forest, assessed as rare and vulnerable in states of Paraná Rio Grande do Sul, respectively. This adverse situation requires conservation actions that must be supported by understanding its autecology. We aimed identify phenological patterns O. populations from two Araucaria Rainforest remnants Paraná. Monthly phenology monitoring 19 trees each site was performed over 24 months. quantified vegetative (i.e., leaf flushing, mature leaves, leaf-senescence) reproductive phenophases buds production, blooming, immature, fruits). Circular statistics based on activity index were applied seasonality. Spearman correlations among meteorological parameters. Leaf flushing leaves recorded all months, with decrease during November December. Leaf-senescence seasonal, occurring May The seasonal: blooming January May; fruiting March November, fruits starting September. Vegetative highly influenced average temperature photoperiod. Although there dissimilarities patterns, different studied had similar performances.