| In this dissertation, I use a combination of laboratory mesocosm experiments, observational field surveys across spatial and temporal scales, and a manipulative field experiment to understand the role of animal-excreted ammonium in driving microbial and algal function in a rocky intertidal ecosystem. By studying the influence of naturally relevant ammonium concentrations on species interactions, I have assembled baseline data against which predicted environmental change can be compared. (Abstract shortened by ProQuest.). |
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