Dominance not richness determines invasibility of tallgrass prairie

Article Abstract:

The invasibility of plant communities is influenced by a number of factors like traits of invading species, abundance of natural enemies. The levels of the dominance and richness treatments are determined by first censusing the number of ramets of each species and accordingly the results suggest that dominance is the key community characteristic determining invasibility.

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Species' geographic ranges and distributional limits: Pattern analysis and statistical issues

Article Abstract:

The tools appropriate for the quantification of static spatial patterns related to geographical ranges and their borders are surveyed. The aim is to stress on how the combination of existing and novel quantitative and spatial statistics could be used in a complementary way to better describe species' geographical range.

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A comparison of the species-time relationship across ecosystems and taxonomic groups

Article Abstract:

The species- time relationship (STR) describes how the species richness of a community increases with the time span over which the community is observed. The STR is as fundamental an ecological pattern as the species - area relationship (SAR), and raise questions about the general processes underlying the pattern.

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