Twilight variation of arthropods in bromeliad Quesnelia arvensis (Vell.) In Itinguçú State Park Álison Luís Cara, Amanda Aparecida Carminatto, Laura Roberta Sarmento de Barros, Sueli Silva Souza, Milena Ramires, Mara Angelina Galvão Magenta

Abstract

 Bromeliads are plants with habits from terrestrial to epiphytic and occur in almost all ecosystems. The ecological importance of these individuals is related to the formation of microhabitats which serve as shelter for several organisms. However, little is known about the twilight variation in the composition of organisms that inhabit them. Thus, this work aimed to evaluate the twilight variation of abundance, richness and diversity of arthropods in Quesnelia arvensis in a restinga area belonging to the Jureia Itatins Conservation Units Mosaic. A quadrant of 3.7m was established, where plants were investigated during dawn and dusk, and the arthropods found were noted. Our results show that there is little twilight variation in the arthropod composition present in Q. arvensis, and statistically the diversity did not present significant difference between the periods. There are few studies involving a variation of organisms at different times of the day, which reinforces the importance of this assessment for future projects.