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Seed predation by animals has been shown to be an important factor in the evolution of dispersal mechanisms and diaspore morphology of plants. We studied seed production and predation of the perennial tussock-grass Stipa tenacissima L. in “El Desierto”, a semi-desert area in south-eastern Spain. As almost all other species in the genus, this plant produces diaspores with a long awn capable of hygroscopic...
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