24 Oct '11, 6am

Are all intertidal wetlands naturally created equal? Bottlenecks, thresholds and knowledge…

Intertidal wetlands such as saltmarshes and mangroves provide numerous important ecological functions, though they are in rapid and global decline. To better conserve and restore these wetland ecosystems, we need an understanding of the fundamental natural bottlenecks and thresholds to their establishment and long-term ecological maintenance. Despite inhabiting similar intertidal positions, the biological traits of these systems differ markedly in structure, phenology, life history, phylogeny and dispersal, suggesting large differences in biophysical interactions. By providing the first systematic comparison between saltmarshes and mangroves, we unravel how the interplay between species-specific life-history traits, biophysical interactions and biogeomorphological feedback processess determine where, when and what wetland can establish, the thresholds to long-term ecosyste...

Full article: http://rafflesmuseum.wordpress.com/2011/10/24/are-all-int...

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Are Bottlenecks Endemic to the Grid?

spectrum.ieee.org 31 Oct '11, 3pm

On Thursday, September 8th, 1.4 million households in Southern California lost power in a outage that started with some ro...