Global warming assessment suggests the endemic Brazilian kelp beds to be an endangered ecosystem.

摘要: Abstract Kelps are canopy-forming brown seaweed sustaining critical ecosystem services in coastal habitats, including shelter and nursery grounds, providing food resources to a myriad of associated species. This study modeled the fundamental niche Laminaria abyssalis along Brazilian continental margin, an endemic species South Atlantic, anticipate potential distributional range shifts under two contrasting scenarios future environmental changes (RCP2.6 RCP8.5). The model for predictions considering “present scenario” has shown wider area than realized (i.e., where actually occurs) coast. In both scenarios, models have erosion on northern portion coast gains towards south. L. populations tend shift deeper regions reef. Considering restricted occurrence (33,000 km2) intense anthropic activities these beds, such as trawling fisheries, oil/gas mining, or removal agricultural purposes, acting synergically with global warming, may drive this collapse faster kelp species’ ability adapt. We propose classify Endangered - (EN) IUCN criteria. As well highlight that long-term monitoring beds is urgent need develop effective conservation initiatives protect rare invaluable ecosystems.