Aboveground-belowground interactions exert critical controls on the composition and function of terrestrial ecosystems, yet the fundamental relationships between plant diversity and soil microbial diversity remain elusive. Theory predicts predominantly positive associations but tests within single sites have shown variable relationships, and associations between plant and microbial diversity ac...

Many exotic annual grasses are believed to increase wildfire frequency to the detriment of native vegetation by increasing fine fuels and thus, creating a grass-fire cycle. However, information on differences in fuel characteristics between invaded and non-invaded plant communities is lacking, or is basedmainly on speculation and anecdotal evidence. We compared fuel biomass, cover, continuity a...

Plant species influence belowground communities in a variety of ways, ultimately impacting nutrient cycling. Functional plant traits provide a means whereby species identity can influence belowground community interactions, but little work has examined whether species identity influences belowground community processes when correcting for evolutionary history. Specifically, we hypothesized that...

Aboveground production in terrestrial plant communities is commonly expressed in amount of carbon, or biomass, per unit surface. Alternatively, expressing production per unit volume allows the comparison of communities by their fundamental capacities in packing carbon. In this work we reanalyzed published data from more than 900 plant communities across nine ecosystems to show that standing dry...

This paper reports on our ongoing work regarding opinion mining from Web-based discussion forums in the realm of the Understanding Advertising (UAd) project. Our approach to opinion mining is to first RDFise discussion forums in SIOC, and in a second phase to interlink the so created data with linked datasets such as DBpedia. We are confident that this should allow a market researcher to formul...

A general allometric scaling model predicts that plant body mass MT will scale as the −4/3 power of plant density N. Here, we show how this model predicts numerous other scaling attributes of plant populations and communities, including annual growth rate GT, standing leaf biomass ML, basal stem diameter D, and aboveand below-ground biomass, MSH and MR. These predictions are consistent with the...

In this work we present a P system based model of the ecosystem dynamics of plant communities. It is applied to four National Hunting Reservoirs in Catalan Pyrenees (Spain). In previous works several natural highmountainecosystems and population dynamics were modeled, but in those works grass was considered unlimited and changes in plant communities were not taken into account. In our new model...