J. L. S. MURRAY,^* PETER A. JUMARS<sup>**


*</sup>J. L. S. Murray (previously published as J. L. Schmidt) (schmidt@nceas.ucsb.edu) is a postdoctoral researcher at the National Center for Ecological Analysis and Synthesis at the University of California, Santa Barbara, CA 93101.Her research interests include the microbial ecology of marine sediments, including chemical communication and foraging strategies of bacteria.
^**Peter A. Jumars (jumars@maine.edu) is a professor in the School of Marine Science at the University of Maine, Walpole, ME 04753.His research focuses on identifying and quantifying important mechanisms by which marine organisms interact with their physical and chemical environments.