Microhabitat preferences of six Drosera (Droseraceae) from Tibagi river basin, Paraná state, Brazil

Brazilian Archives of Biology and Technology

Dennis Panayotis Saridakis²  José Marcelo Domingues Torezan¹  Galdino Andrade¹ 

[1] ,Universidade Estadual de Londrina Departamento de Agronomia Londrina PR ,Brazil

关键词: Ecology;    carnivorous plants;    Drosera;    sundew;    Brazil;    Tibagi River Basin;   

DOI  :  10.1590/S1516-89132004000400001

来源: SciELO

【 摘 要 】

We studied the microhabitats and the climatic requirements of six Drosera taxa, which occur in the subtropical grasslands of the Tibagi river basin. They are annual,or most communly, perennial herbs known as carnivorous plants, whose leaves are transformed into traps for the capture and digestion of small insects as an adaptation for supplying nutricional deficiencies. They usually occur in distrophic substrata. In order to contribute to conservation plans for the species of the genus, threatened by the conversion of the natural grasslands into pastures, we tried to define their preferential habitats and climatic requirements. We verified that the variables of microhabitat and altitude presented significant correlation at 5% probability level, while the variables in annual average relative humidity, annual average temperature and type of substratum types did not show significant correlation.

【 授权许可】

CC BY-NC   
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