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Effects Of Phosphorus On Benthic Diatom Assemblage Network Structure, Eric M. Massa
Effects Of Phosphorus On Benthic Diatom Assemblage Network Structure, Eric M. Massa
FIU Electronic Theses and Dissertations
Ecological network analysis helps identify how relationships among species differ over time and across sets of species. Microbial assemblages are ideal for evaluating changes in species interactions due to environmental changes because they are speciose and respond at multiple scales. To determine how phosphorus limitation influences diatom network structure, I analyzed relationships among 257 species of diatoms from benthic microbial (periphyton) mats from 10 years of annual samples from 136 sites. Expected evidence of changes in network structure in response to periphyton TP were not found, likely due to species replacement with increased TP. Analysis of species connection distributions and …