Modeling Gull Behavior (IMAGE) American Mathematical Society Caption Some animal behaviors are highly determined by abiotic environmental variables; others are influenced relatively little. Model predictions are in color; observations are black circles. The R2 value can be interpreted as the proportion of variability in the data that is explained by abiotic environmental variables. (From "The Mathematics of Animal Behavior: An Interdisciplinary Dialogue", by Shandelle M. Henson and James L. Hayward, Notices of the American Mathematical Society, November 2010.) Credit James L. Hayward and Shandelle Henson Usage Restrictions Request permission from James L. Hayward and Shandelle Henson (Andrews University) before reproducing this image. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.