Spatial Heterogeneity, Spatial Scale, and Productivity
Invasive species are one of the most significant threats to native species diversity, and identifying the factors that make places more or less invasible has been one of the most important issues in the study of invasions. Serpentine systems have provided significant insight into the reasons some communities are more invasible than others, because the environment within these systems is often extreme. Spatial heterogeneity, spatial scale, and productivity have all proven to be critical elements in understanding the invasibility of communities. This chapter takes the following elements—spatial heterogeneity, scale, and productivity—and contrasts the contributions of studies in serpentine systems with studies in systems that are not serpentine.
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