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Naturalization is the introduction and establishment of a nonnative species with sustainable populations in a novel environment. The success of nonnative species may be influenced by their relatedness to the native flora. Darwin proposed that if a nonnative plant species is introduced into an environment without native congeners, the nonnative species will have a greater chance of becoming naturalized...
Three functions that analyze point patterns are the L (a transformation of Ripley’s K function), pair correlation, and K2 functions. We tested these functions with Genton’s spatial index, which measures the distance between observed and random theoretical lines for a function over all lag distances. We simulated points from random, moderately regular, extremely regular, and clustered distributions...
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