EMBARGOED UNTIL 00:01 (BST) WEDNESDAY 27 MAY 2015 Introduction - Frontiers in Marine Movement Ecology: mechanisms and consequences of migration and dispersal in marine habitats Biology Letters Dispersal and migration are important ecological processes that influence rates of exchange, colonization, extinction and speciation for a wide array of taxa in terrestrial and aquatic systems. The role of movement patterns in the marine environment is particularly critical because a majority of marine species have a mobile phase at some stage of their life history. This special feature showcases a collection of papers that illustrate the current frontiers of marine movement ecology and point the way for future research in this critical area. Contact: Dr Benjamin Walther, University of Texas at Austin, bwalther@utexas.edu, 1-361-749-6810 URL after publication: http://rsbl.royalsocietypublishing.org/lookup/doi/10.1098/rsb l.2015.0146