This synthesis report focuses analyses on two main components of the EMP: variability in the status and trends data for the habitat structure, habitat hydrology, fish and fish prey components collected between 2005 and 2013 and a synthesis of food web dynamics in the LCRE collected between 2011 to 2013. In 2013, a synthesis report was completed that provided an analysis of all EMP data collected between 2005 and 2010 (Sagar et al. 2013; available on the Estuary Partnership website: http://www.estuarypartnership.org/resource/juvenile-salmon-ecology-tidal-freshwater-wetlands-lower-columbia-river-estuary-synthesis). Please see that report for trends analyses by site and across sites for each EMP metric. This synthesis report builds on the 2013 synthesis by focusing on identifying the variability in metrics and by providing results on food web and abiotic conditions.