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Econullnetr: An R Package Using Null Models To Analyse The Structure Of Ecological Networks And Identify Resource Selection, Ian P. Vaughan, Nicholas J. Gotelli, Jane Memmott, Caitlin E. Pearson, Guy Woodward, William O.C. Symondson

College of Arts and Sciences Faculty Publications

Network analysis is increasingly widespread in ecology, with frequent questions asking which nodes (typically species) interact with one another and how strong are the interactions. Null models are a way of addressing these questions, helping to distinguish patterns driven by neutral mechanisms or sampling effects (e.g. relative abundance of different taxa, sampling completeness) from deterministic biological mechanisms (e.g. resource selection and avoidance), but few “off the shelf” tools are available. We present econullnetr, an r package combining null modelling and plotting functions for networks, with data-export tools to facilitate its use alongside existing network analysis packages. It models resource choices …