Antarctic food webs - Jacobian matrices

The Antarctic food webs represent two entire above-belowground communities from Signy Island Reference Sites on Signy Island, one of the South Orkney Islands in the Maritime Antarctic.
The two communities are a dry moss community (Antarctic dry tundra) and a wet moss community (Antarctic wet tundra).
These two communities were the focus of intensive biological study by personnel from the British Antarctic Survey over the course of a decade in the 1970's, of which the results were finally compiled into a meta-analysis by Davis (1981).
The Jacobians of the dry and wet tundra were calculated by Neutel and Thorne (2014) using the empirical biomass and flow data of the respective systems from Davis' analysis.
The Jacobians represent the interaction strengths of the species in the two food webs, evaluated at equilibrium.
References :

1. Neutel and Thorne (2014) Interaction strengths in balanced carbon cycles and the absence of a relation between ecosystem complexity and stability. Ecology Letters, Volume 17, Issue 6, Pages 651-661. doi:10.1111/ele.12266
2. Davis, R.C. (1981). Structure and function of two Antarctic terrestrial moss communities. Ecol. Monogr., 51, 125-143. doi:10.2307/2937260
3. Tilbrook, P.J. (1973) The Signy Island terrestrial reference sites. 1. An introduction. Br. Antarct. Sur. Bull., 33 and 34, 65-76.