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The recovery of top predators is thought to have cascading effects on vegetated ecosystems and their geomorphology1,2, but the evidence for this remains correlational and intensely debated3,4. Here we combine observational and experimental data to reveal that recolonization of sea otters in a US estuary generates a trophic cascade that facilitates coastal wetland plant biomass and suppresses the erosion of marsh edges—a process that otherwise leads to the severe loss of habitats and ecosystem services5,6. Monitoring of the Elkhorn Slough estuary over several decades suggested top-down co...

In this population based cohort study of >37,000 people in Hong Kong, Hongjiang Wu and colleagues examine 1-year weight change after diabetes diagnosis with long-term incidence and sustainability of diabetes remission.

Author summary Why was this study done? Tropical cyclones (TCs), among the most destructive and costliest climate extreme events, are expected to be more intense due to climate change. Despite the widely acknowledged hazards, a consistent and quantitative assessment of the mortality risks of TC across countries is lacking. Such quantitative and comparable evidence across countries is urgently required to better understand the health effects and respond to the potentially increasing hazards. No previous studies have characterized the periods of concern (POC), exposure-response (ER) relationsh...

This cohort study assesses the incidence of severe and very severe hypocalcemia in female dialysis-dependent patients aged 65 years or older receiving denosumab

Studies have reported widespread declines in terrestrial insect abundances in recent years1–4, but trends in other biodiversity metrics are less clear-cut5–7. Here we examined long-term trends in 923 terrestrial insect assemblages monitored in 106 studies, and found concomitant declines in abundance and species richness. For studies that were resolved to species level (551 sites in 57 studies), we observed a decline in the number of initially abundant species through time, but not in the number of very rare species. At the population level, we found that species that were most abun...