Cross site investigation using LTER Data.

Species Richness in Space and Time

Estimating the number of species in a community or ecosystem is a fundamental problem in basic and conservation ecology. Basic researchers use biodiversity estimates to study latitudinal diversity gradients, to determine relationships between local and regional diversity, and as a response variable in manipulative experiments. Conservation ecologists use such estimates to prioritize conservation efforts (Myers et al. 2000) and predict species losses due to fragmentation (Pimm and Askins 1995, Brooks et al. 1997).

Functional Response to Resource Change across LTER Sites (Biodiversity of Riparian Ecotones)

Workshop Proposal: Biodiversity of Riparian Ecotones As ecotones between aquatic and terrestrial ecosystems, riparian zones are templates for the dynamic exchange of energy, nutrients and biological interactions. Recent studies in headwater systems have suggested that these exchanges constitute reciprocal subsidies (sensu Polis et al. 1996) between streams and terrestrial riparian habitats (Nakano & Murakami 2000;… Read more »

Disturbance & Variance: Detecting Change in Terrestrial & Aquatic Ecosystems

Proposal for ASM workshop follow-up (coPIs: Rusak, Fraterrigo and Turner) Disturbance and Variance: Detecting change in terrestrial and aquatic ecosystems Rationale and Conceptual Framework Populations, communities, and ecosystems vary in space and time. Variability is a fundamental property of natural systems, and its quantification and interpretation cross boundaries between many different disciplines. However, our understanding… Read more »