1) The document discusses how functional diversity decreases with increased land use intensity and agricultural intensification across taxonomic groups. Forest fragments and areas with live fences had greater extinction of species compared to pasture lands. 2) It examines how functional redundancy within taxonomic groups is lost due to land use change. As intensity increases, the number of species performing key functions decreases. 3) The study of agrobiodiversity and human nutrition is presented as a way to consider both sustainable development and theoretical ecology. Research in a region of Kenya found higher on-farm species richness and functional diversity were correlated with improved provision of nutrients important for human health.
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