Publications by authors named "P Tognetti"
Human activities alter biomass, nutrient availability, and species dominance in grasslands, impacting their richness, composition, and biomass production. Stability (invariability in time or space) can inform the predictability of plant communities in response to human activities. However, this measure has been simplistically analyzed for temporal (interannual) changes in live biomass, disregarding their spatial stability and the temporal stability of other plant community attributes.
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- * Sites with warmer, wetter conditions and more species generally saw increased biomass, while arid, species-poor areas experienced declines, alongside notable changes in seasonal plant growth patterns.
- * Factors like grazing and nutrient input didn't consistently predict biomass changes, indicating that grasslands are undergoing substantial transformations that could affect food security, biodiversity, and carbon storage, particularly in dry regions.
Article Synopsis
- Walking is a complex activity that involves both physical coordination and cognitive processes, and disruptions in gait affect older adults' independence and quality of life.
- This study utilized a mobile brain/body imaging platform with high-density EEG to analyze brain activity while participants walked under regular and dual-task conditions, measuring how these tasks impacted neural synchronization in different brain networks.
- Findings revealed that during dual-task walking, neural activity in cognitive and affective networks increased, indicating that attention significantly influences motor control, with specific correlations between brain activity and gait performance.
Anthropogenic nutrient enrichment and shifts in herbivory can lead to dramatic changes in the composition and diversity of aboveground plant communities. In turn, this can alter seed banks in the soil, which are cryptic reservoirs of plant diversity. Here, we use data from seven Nutrient Network grassland sites on four continents, encompassing a range of climatic and environmental conditions, to test the joint effects of fertilization and aboveground mammalian herbivory on seed banks and on the similarity between aboveground plant communities and seed banks.
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