Abstract
Studies of floral biology were developed on Croton urucurana, a pioneer monoecious tree, recommended to be used in the process of regeneration of the riparian forest. The plant presents small yellow-greenish unisexual flowers, disposed in racemose inflorescences. Anthesis occurs at night, flowers last three days and open around 11 pm. Flowers are visited by insects belonging to the following Orders Diptera, Odonata, Lepidoptera, Hemiptera and Hymenoptera (Apidae and Vespidae). Apis mellifera was the most frequent flower visitor
Highlights
A mata ciliar desempenha importantes funções hidrológicas, como proteção à zona ripária, filtragem de sedimentos e de nutrientes, controle no aporte de nutrientes e de produtos químicos nos cursos de água, controle da erosão das ribanceiras dos canais e controle da alteração da temperatura do ecossistema aquático (Lima, 1989)
that occurs in riparian vegetation of Porto Rico Island
Studies of floral biology were developed on Croton urucurana
Summary
Área de estudo O trabalho de campo foi desenvolvido na ilha Porto Rico (22o45’S e 53o16’W) no alto rio Paraná, no município de Porto Rico, Estado do Paraná, em populações naturais de Croton urucurana, nas proximidades da lagoa Figueira (Figura 1). Mapa da planície de inundação do alto rio Paraná, mostrando a localização da ilha Porto Rico, área utilizada para o estudo
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