Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs42408-019-0034-z/MediaObjects/42408_2019_34_Fig3_HTML.png)
Monarch Butterfly Biosphere Reserve, Mexico, fire-scarred tree (a), and a cross-section (b), in 2016. Photo credit: J.E. Sáenz-Ceja
Monarch Butterfly Biosphere Reserve, Mexico, fire-scarred tree (a), and a cross-section (b), in 2016. Photo credit: J.E. Sáenz-Ceja