Maja Kajin

This paper introduces S-elasticity, a second-order elasticity measure to analyze nonlinear fitness responses to vital rate perturbations in ecology and evolution.

The paper develops a unified matrix framework to analyze both pulse and press disturbances in populations, showing how transient dynamics influence long-term fitness and demographic responses.

The paper uses Bayesian models to show that population responses to environmental stochasticity vary widely and are driven by survival-reproduction trade-offs and aridity.

The paper tests the social buffering hypothesis across 66 animal species, finding social species have lower demographic sensitivity to environmental variability, especially in unpredictable climates.