Supplement 1. Annotated c++ source code for the beetle model implemented in the forest landscape model LandClim.

File List LandClim_beetle_model_source_code.zip (MD5: 67b81710014ff4275a30f85217bc3f23) Description The .zip file contains three text files (beetle.cpp, climate.cpp and cohort.cpp) that contain the C++ source code for the beetle model implemented in LandClim. The code is annotated with references to variable names and equations in the published article. beetle.cpp contains the main routines of the beetle model, climate.cpp calculations of bioclimatic variables and cohort.cpp contains the routines used to simulate beetle-induced tree mortality. A previous version of this source code is archived in the Dryas database (http://dx.doi.org/10.5061/dryad.18790) and refers to European spruce beetles (<i>Ips typographus</i>). The files archived here comprise an updated, adapted and extended version of this code and include routines specific to North American spruce beetles (<i>Dendroctonus rufipennis</i>).