Spacial Structures and Species Coexistence (ERC Project)

forest plot
Tropical forests are not only extraordinary rich in tree species, they also hide spatial patterns of amazing harmony, almost like a piece of modern art. The image represents the spatial position and size of larger trees in a 500m x 500m plot of tropical forest in Sri Lanka. Different colors indicate different species. Should the information hidden in these spatial patterns convey information about the underlying ecological mechanisms or even conceal the key to coexistence? The ERC advanced grant project SpatioCoexistence will find out. We will take advantage of spatial scaling to incorporate this detailed spatial information into mathematical coexistence theory.

The overarching ecological objective of SpatioCoexistence is to develop a spatially-explicit theory for forest communities of intermediate to high tree species richness, as found for example in temperate, subtropical and tropical forests, to derive theoretical expectations about how multiple ecological pattern and processes interact in determining the dynamics and coexistence of species in empirical settings. We integrate state-of-the-art mathematical and simulation approaches with methods from physics and spatial analysis of the large spatial data sets, such as ForestGEO inventory data of 20-50 ha forest plots, each comprising the species identity, size and location of >100,000 trees. The link to the microscopic scale of individual plants allows us to integrate ecological detail in unprecedented ways, while keeping the theory tractable.

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