Facilitation by isolated trees triggers woody encroachment and a biome shift at the savanna-forest transition

Rodolfo Abreu, Giselda Durigan, Antônio Carlos Melo, Natashi Pilon & William Hoffmann
1. Woody encroachment into grassy biomes is a global phenomenon, often resulting in a nearly complete turnover of species, with savanna specialists being replaced by forest-adapted species. Understanding the mechanisms involved in this change is important for devising strategies for managing savannas. 2. We examined how isolated trees favor woody encroachment and species turnover by overcoming dispersal limitation and environmental filtering. In a savanna released from fire in southeastern Brazil (Cerrado) we sampled woody plants...
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