Supplement 1. R computer code for estimating the population growth rate of aphids and parasitism rates from three years of field data (Eq. 1, Fig. 1), and MATLAB computer code for fitting the data from the long-term cage experiments (Eqs. 2–9, Fig. 3) using a nonlinear state-space model.

<h2>File List</h2><div> <p><a href="MeisnerFieldDataAnalyses.R">MeisnerFieldDataAnalyses.R</a> (MD5: cf3a7f68ff13dd1e356bba4bb7caa8b3)</p> <p><a href="MeisnerFieldData.txt">MeisnerFieldData.txt</a> (MD5: 0bac717c21a5f770cf86a101f9b0824b)</p> <p><a href="MeisnerLongtermCageFitting.m">MeisnerLongtermCageFitting.m</a> (MD5: 0e3913d8176549296eeee49ffa992501)</p> <p><a href="MeisnerLongtermCageData.txt">MeisnerLongtermCageData.txt</a> (MD5: 030c0e867a5c734a83dde0bfd4adf57e)</p> <p><a href="meisnerfigfunct_20Aug13.m">meisnerfigfunct_20Aug13.m</a> (MD5: 2d69d9822cb0798e2ec68ed9b57469f9)</p> </div><h2>Description</h2><div> <p>MeisnerFieldDataAnalyses.R contain R computer code for estimating the population growth rate of aphids and parasitism rates from three years of field data (Eq. 1, Fig. 1); MeisnerFieldData.txt contains the corresponding data. MeisnerLongtermCageFitting.m is matlab computer code for fitting the data from the long-term cage experiments (Eqs. 2–9, Fig. 3) using a nonlinear state-space model; the program meisnerfigfunct_20Aug13.m is a dependent, and MeisnerLongtermCageData.txt contains the data.</p>