Initial species pattern affects invasion resistance in experimental grassland plots
نویسندگان
چکیده
Methods: Experimental plots (4 m) were planted with seedlings of four grassland species arranged into increasingly larger groups (patches) of conspecific individuals while controlling plot-scale richness and evenness. Available light (photosynthetically active radiation; PAR) at the soil surface was measured each month for three growing seasons after planting. Species’ relative abundances were quantified via point-intercept sampling within each plot at the end of each growing season.
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