Niche partitioning overrides interspecific competition to determine plant species distributions along a nutrient gradient

Elizabeth Wandrag, Jane Catford & Richard Duncan
Changes in some combination of niche availability, niche overlap and the strength of interspecific interactions are thought to drive changes in plant composition along resource gradients. However, because these processes are difficult to measure in the field, their relative importance in driving compositional change in plant communities remains unclear. In an Australian temperate grassland, we added seeds of three native and three exotic grasses to 1,875 experimental plots in a way that allowed us to...
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