Introdução a um catálogo polínico ilustrado de espécies da caatinga do Ceará

Abstract

In the Brazilian semi arid region, Caatinga is a phytogeographic domain that suffers many impacts and it has desertification cores . Despite it has been documented as rich in biodiversity , Caatinga lacks detailed recorded information. The few reference s on palynology of Caatinga turn necessary to compile and publish new descriptive data on Caatinga’s pollen grains, allowing pollen identification and, therefore, supporting research in fields such as melissopalynology, paleoecology, temporal landscape reconstruction environmental conse rvation , among others Thus, this work aims to create a preliminary model of a descriptive and illustrated pollen catalog of Caatinga’s Flora from the state of Cear á . For the pollen description of Caatinga’s flora of Ceará , flower buds were collected in field and the Prisco Bezerra Herbarium later macerated and then chemically processed in acetolysis technique . F rom the final processing residue, 114 slides were made, and the pollen content s w ere photographed under a microscope and described according to the literature. Th erefore , a previous model for a catalog , entitled Catálogo Polínico de Espécies da Caatinga do Ceará was drawn up. Subsequently, the complete catalog must be written and made available physically and virtually as we possess all the intended data. All this data will be valuable for researche r s who rate the level of degradation of Caatinga and propose activities to reverse the ongoing desertification processes.