Structural hydrologic connections, formed by the coaction of tectonic and climatic processes, facilitate transfer matter across Earth's surface. Large-scale analysis hillslope connectivity controls is lacking, thus limiting our understanding drivers extremes, like floods landslides, benefits, wetlands. Here, we model using Index Connectivity, at 10-m resolution for contiguous United States. We ...

The soil seed bank is a major component of plant communities. However, long-term analyses the dynamics and ensuing vegetation are rare. Here, we studied in communities with high dominance annuals Mediterranean, semiarid, arid ecosystems for nine consecutive years. For annuals, hypothesized that density would be more stable than standing herbaceous vegetation. Moreover, predicted differences tem...

A new model for vegetation patterns is introduced. The model reproduces a wide range of patterns observed in water-limited regions, including drifting bands, spots, and labyrinths. It predicts transitions from bare soil at low precipitation to homogeneous vegetation at high precipitation, through intermediate states of spot, stripe, and hole patterns. It also predicts wide precipitation ranges ...

Institut National de la Recherche Agronomique, Biodiversité, Gènes and Communautés-Unité Mixte de Recherche 1202, F–33610 Cestas, France (M.L., R.B., S.D.); Université de Bordeaux, Biodiversité, Gènes and Communautés-Unité Mixte de Recherche 1202, F–33615 Pessac, France (M.L., R.B., S.D.); School of Biological Science, University of Tasmania, Hobart, Tasmania 7001, Australia (T.J.B.); Hawkesbur...

Aim Nitrogen (N)-fixing plants are an important component of global plant communities, but the drivers N-fixing diversity, especially in temperate regions, remain underexplored. Here, we examined broad-scale patterns and non-fixing phylogenetic diversity (PD) species richness (SR) across a wide portion North America, focusing on relationships with soil N aridity. We also tested whether exotic s...