Do more niches or better niches promote species richness? Insight from local and regional drivers of lichen diversity across U.S. forests
The poster was presented at the 2014 Gordon Research Conference on "Unifying Ecology Across Scales". It describes an analysis of macrolichen species richness from 2,000 forest inventory plots surveyed by the U.S. Forest Service. Specifically, we investigated whether the effects of environmental heterogeneity or mean environmental conditions on species richness differ between local and regional scales. We also assess the relative importance of local versus regional processes on local species richness.