R for teaching ecology
summary
Undergraduate students use small Shiny apps built around the de salt differential‑equation solver to tweak parameters in Lotka‑Volterra models and see concrete outcomes: coexistence vs one species excluding the other, with visual thresholds where dynamics flip. A second Shiny app ingests eDNA count tables and metadata (demo dataset from the Pacific Ocean) to produce stacked‑bar community plots that highlight site differences in diversity. Both apps run in class and measurably reduce student confusion about math and data.
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