ArticleProceedings of the National Academy of Sciences of the United States of America2023
Double stress of waterlogging and drought drives forest-savanna coexistence.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Biodiversity buffers forest ecosystems from compound climate extremes.Nature communications · 2026Article
- Halibee member archaeology: Middle Stone Age environment, technology, and postmortem modifications.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Topography is a Major Determinant of Forest-Savanna Distributions in Mosaic Landscapes in Central Africa.Ecosystems (New York, N.Y.) · 2026Article
- Optimized MaxEnt modeling predicts the distribution change ofFrontiers in plant science · 2026Article
- Mapping the density of giant trees in the Amazon.The New phytologist · 2026Article
- Flash droughts exacerbate global vegetation loss and delay recovery.Nature communications · 2025Article
- Article
- A Broad Wildlife Survey of Influenza A Virus in the Orinoco Flooded Savannas from Colombia: New Reports and Perspectives.Animals : an open access journal from MDPI · 2025Article
- Susceptibility to Photosynthesis Suppression From Extreme Storms Is Highly Site-Dependent.Global change biology · 2025Article
- Biological Nano-Agrochemicals for Crop Production as an Emerging Way to Address Heat and Associated Stresses.Nanomaterials (Basel, Switzerland) · 2024Review
- Distribution pattern of large oldEcology and evolution · 2024Article
- Critical transitions in the Amazon forest system.Nature · 2024Article
- Seasonal flooding shapes forest-savanna transitions.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Double stress of waterlogging and drought drives forest-savanna coexistence.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Forest-savanna boundaries are ecotones that support complex ecosystem functions and are sensitive to biotic/abiotic perturbations. What drives their distribution today and how it may shift in the future are open questions. Feedbacks among climate, fire, herbivory, and land use are known drivers. Here, we show that alternating seasonal drought and waterlogging stress favors the dominance of savanna-like ecosystems over forests. We track the seasonal water-table depth as an indicator of water stress when too deep and oxygen stress when too shallow and map forest/savanna occurrence within this double-stress space in the neotropics. We find that under a given annual precipitation, savannas are favored in landscape positions experiencing double stress, which is more common as the dry season strengthens (climate driver) but only found in waterlogged lowlands (terrain driver). We further show that hydrological changes at the end of the century may expose some flooded forests to savanna expansion, affecting biodiversity and soil carbon storage. Our results highlight the importance of land hydrology in understanding/predicting forest-savanna transitions in a changing world.
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