Fenologia, biometria de diásporos e morfologia de plântulas de espécies de floresta estacional semidecidual montana do Pico do Jabre, PB.

Abstract

The Pico do Jabre Montane Seasonal Forest (06° 02'12 " to 08° 19" 18 " S and 34° 45'12 " to 38° 45'45 " W) is in domain of Northeastern Atlantic forest in Paraiba. The aims of this study was to characterize the diaspores biometry, seedlings morphology, and arboreal species phenology and its relationships with local temperature, monthly precipitation and soil humidity during two years. Phenology was registered for species in the top, more preserved, and in bottom, more altered. The diaspores collected presented length variations from 2,69 to 23,4 mm, with zyZxawnvthutosxrqypluomnm lkrjhihogiffoedliucbma ZYaXnWd VHUyTmSeRnQaPeOaN McLoKuJbIaHrGil FwEDitCh BtAhe smallest and highest measures, respectively. Between 15 studied species there was 12 flowering in the first year and six in the second one. The vegetative phenology showed perenifoly when considered all species together, or total community. The flowering was asincronical among species and was presented during the whole year, except for the second one in the preserved community, with flowering absence for about 6 months. The species, individually, pointed out flowering and fructification without defined sazonality, except for Senegalya polyphylla, Cordia trichotoma, Randia nitida, Maytenus distichophylla and Sapium glandulosum and of Prockia crucis, Cynophalla flexuosa and Ceiba glaziovii fructification. The environmental variables presented significant correlation with the flowering and fructification of some species. The germination type predominant was Epigeous, Fanecoltiledonar with seven species with leafy cotiledons (FEF) and six with storage cotiledons (FER). The field seedlings identification was helped by morphologic characteristics, described for 14 species and and a dendrological key was elaborated, that had as opening the presence simple or compound leaves.