Caracterização ecológica de espécies arbóreas do estado do Pará

Abstract

The ecological characterization of botanical species contributes importantly to indicate successional stages and to evaluate the influence of climate, soil and anthropic action factors on plant communities. The present work aimed to ecologically characterize the tree species found in floristic inventories, maintaining a database on the flora of Pará State. Several searches for information were made in the herbarium of the Goeldi Museum and in the libraries of the Faculdade de Ciências Agrárias do Pará, EMBRAP NCPATU and the Goeldi Museum. The information was entered into a database established in Access software, which has two major classes: those related to the localities where the species occurs (place, habitat, latitude, longitude ...) and those related to its ecological characteristics (types of fruits, seeds, dispersal ...). To date, 137 species belonging to 35 botanical families have been entered into the database and already have a relative number of catalogued information. Of the 35 botanical families catalogued so far, the families Caesalpiniaceae and Lecythidaceae have presented the greatest number of species. With regard to their ecological characteristics, the great majority of these species have already catalogued their uses, flower and fruit color, fruiting and flowering periods, their dispersers, and bark and leaf types. The inventories made in the eastern Amazon show a large number of tree species and the difficulties in finding information on the respective species are great. This work was prepared with the aim of alleviating some of the difficulties found in a single means of information on the ecological characteristics of a particular species, providing the user with ease in the search.