Publications by authors named "Gianmaria Bonari"

Article Synopsis
  • Plant communities consist of species with varying functional traits and evolutionary backgrounds, leading to the expectation that functional diversity increases with phylogenetic diversity.* -
  • Contrary to this expectation, a study of over 1.7 million vegetation plots showed that functional and phylogenetic diversity are weakly and negatively correlated, suggesting they operate independently.* -
  • Phylogenetic diversity is more pronounced in forests and reflects recent climate, while functional diversity is influenced by both past and recent climate, highlighting the need to assess both types of diversity for ecosystem studies and conservation strategies.*
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Article Synopsis
  • Trait-based ecology traditionally focuses on broad axes of trait variation, but this study emphasizes the importance of intraspecific trait variability (ITV) in understanding plant adaptive strategies.
  • By analyzing ITV across 167 species in various habitats in Italy, the research showed that ITV can rotate the axes of trait variation, enhance the variance explained by these axes, and influence the functional structure of trait space, albeit with small and context-dependent effects.
  • The findings call for a careful approach in applying ITV patterns to different traits and environments, providing a framework to better integrate ITV into future trait space analyses.
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Terrestrial ecosystems affect climate by reflecting solar irradiation, evaporative cooling, and carbon sequestration. Yet very little is known about how plant traits affect climate regulation processes (CRPs) in different habitat types. Here, we used linear and random forest models to relate the community-weighted mean and variance values of 19 plant traits (summarized into eight trait axes) to the climate-adjusted proportion of reflected solar irradiation, evapotranspiration, and net primary productivity across 36,630 grid cells at the European extent, classified into 10 types of forest, shrubland, and grassland habitats.

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Mountain agroecosystems in Latin America provide multiple ecosystem functions (EFs) and products from global to local scales, particularly for the rural communities who depend on them. Agroforestry has been proposed as a climate-smart farming strategy throughout much of the region to help conserve biodiversity and enhance multiple EFs, especially in mountainous regions. However, large-scale synthesis on the potential of agroforestry across Latin America is lacking.

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Article Synopsis
  • * In the study of Italian forests, researchers used various predictors like climate, soil properties, forest structure, and management to analyze how these factors impact plant traits that define FD.
  • * Findings indicate that while climate and soil conditions are significant for herbaceous species, forest structure mainly affects woody species; thus, upcoming climate changes could threaten FD through altered traits impacting plant survival and growth strategies.
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Global changes, particularly rising temperatures, threaten food security in smallholder mountain communities by impacting the suitability of cultivation areas for many crops. Land-use intensification, associated with agrochemical use and tillage, threatens soil health and overall agroecosystem resilience. In the Andean region, farmers often cultivate crops at multiple elevations.

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Ecological theory predicts close relationships between macroclimate and functional traits. Yet, global climatic gradients correlate only weakly with the trait composition of local plant communities, suggesting that important factors have been ignored. Here, we investigate the consistency of climate-trait relationships for plant communities in European habitats.

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Aim: Understanding the variation in community composition and species abundances (i.e., β-diversity) is at the heart of community ecology.

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Article Synopsis
  • Understanding what makes alien species successful can help predict future invasions.
  • Researchers identified three key dimensions of invasiveness: local abundance, geographic range size, and habitat breadth, analyzing data from over one million vegetation plots across Europe.
  • The study found that earlier introductions and certain traits, especially from acquisitive growth strategists, contributed to higher success rates in invasiveness, while also highlighting unique patterns in specific habitats.
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Invasive alien plants are a major threat to biodiversity and they contribute to the unfavourable conservation status of habitats of interest to the European Community. In order to favour implementation of European Union Regulation no. 1143/2014 on invasive alien species, the Italian Society of Vegetation Science carried out a large survey led by a task force of 49 contributors with expertise in vegetation across all the Italian administrative regions.

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The worldwide growing interest in traditional medicines, including herbal medicines and herbal dietary supplements, has recently been accompanied by concerns on quality and safety of this type of health care. The content of nutritional and potentially toxic elements in medicinal plants is of paramount interest as it may vary remarkably according to different environmental and ecophysiological factors. In this study, the concentrations of essential and non-essential trace elements-Co, Cr, Cu, Ni, Sr, and Zn-were determined in the roots and aerial parts of the worldwide distributed and economically important medicinal herb Hypericum perforatum L.

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