Modelling non-additive and nonlinear signals from climatic noise in ecological time series: Soay sheep as an example.

Stenseth, N. C., K. S. Chan, G. Tavecchia, T. Coulson, A. Mysterud, T. Clutton-Brock, and B. T. Grenfell. 2004. Modelling non-additive and nonlinear signals from climatic noise in ecological time series: Soay sheep as an example. P R Soc B 271:1985-1993.