Abstract
Abstract: Bromeliads are numerous both in diversity and abundance in the Atlantic Rainforest, one of the most threatened biomes on Earth. They are also an important habitat for several animal species that live in the water retained by its rosette structure. In this study, we aimed to characterize and compare the macroinvertebrate community of two bromeliad species from Atlantic forest fragments. One is characteristic of Dense Ombrophilous Forests, Aechmea ornata, and the other occurs in Mixed Ombrophilous Forests, Aechmea recurvata. We sampled and identified macroinvertebrates form 24 bromeliads, 12 of each species. A total of 19 taxa and 656 specimens were sampled. In both bromeliad species, Diptera was the most abundant insect order (n=417), represented mostly by mosquitoes (n=227) and non-biting midges (n=107), followed by Scirtidae marsh beetles (n=216). Aechmea ornata presented higher abundance and lower invertebrate richness compared to Aechmea recurvata. Seven taxa were exclusive of A. recurvata, eight were common to both, and four, including a sponge, occurred only in A. ornata. The most abundant invertebrate taxa were common to both bromeliads and are regarded as typical of lentic environments. On the other hand, the high number of exclusive species indicates that conservation efforts should include bromeliads from these two phytophysiognomies to secure protecting the diversity of phytotelmata communities.
Highlights
Bromeliads are numerous both in diversity and abundance in the Atlantic Rainforest, one of the most threatened biomes on Earth
One is characteristic of Dense Ombrophilous Forests, Aechmea ornata, and the other occurs in Mixed Ombrophilous Forests, Aechmea recurvata
Aechmea ornata presented higher abundance and lower invertebrate richness compared to Aechmea recurvata
Summary
Bromeliads are numerous both in diversity and abundance in the Atlantic Rainforest, one of the most threatened biomes on Earth. We aimed to characterize and compare the macroinvertebrate community of two bromeliad species from Atlantic forest fragments. Diptera was the most abundant insect order (n=417), represented mostly by mosquitoes (n=227) and non-biting midges (n=107), followed by Scirtidae marsh beetles (n=216).
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