This is an update to the preprint submitted to BioRxiv.
It now incorporates an additional year of data and improvements to main text and formatting.

Citation:

Camac, J.S., Williams, R.J., Wahren, C-H, Hoffmann, A.A., Vesk, P.A. 2016. Climatic warming strengthens a positive feedback between alpine shrubs and fire. BioRxiv. doi: http://dx.doi.org/10.1101/043919