Implement prediction horizon

[Marchen]

Petchey, O. L., M. Pontarp, T. M. Massie, S. Kefi, A. Ozgul, M. Weilenmann, G. M. Palamara, F. Altermatt, B. Matthews, J. M. Levine, D. Z. Childs, B. J. McGill, M. E. Schaepman, B. Schmid, P. Spaak, A. P. Beckerman, F. Pennekamp, and I. S. Pearse. "The Ecological Forecast Horizon, and Examples of Its Uses and Determinants." Ecology Letters 18, no. 7 (Jul 2015): 597-611. https://dx.doi.org/10.1111/ele.12443.