Seed rain in a removal experiment in a cactus-shrub area invaded by an exotic grass in Mona Island
Fernandez, Denny S.
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As part of an experiment to test the effects of removal of an invasive species (Megathyrsus maximus) in cactus populations in the Eastern coastal area of Mona Island, we collected seed sand plant parts in tray traps, located beside the experimental plots. Monthly samples were separated (using sieves) and classified in the laboratory. With the exception of seeds that were counted and weighted, other plant parts were oven-dried (60ºC) for biomass measurement. Our results show the seasonal variation of seed diversity and production, and biomass variation of plant parts (leaves, stems, and reproductive components) and their relationship to precipitation and other environmental and biotic factors.