Sylvain ZA, Wall DH, Cherwin KL, Peters DPC, Reichmann LG, Sala OE. Soil animal responses to moisture availability are largely scale, not ecosystem dependent: insight from a cross-site study. Global Change Biology. 2014;20(8):2631 - 2643. doi:10.1111/gcb.2014.20.issue-810.1111/gcb.12522.

Wall DH, Adams GA, Parsons AN. Soil Biodiversity. In: Chapin FS, Sala OE, Huber-Sannwald E Global Biodiversity in a Changing Environment. Global Biodiversity in a Changing Environment. New York: Springer Verlag; 2001:47-82.