original vir (ki je naveden tudi v zgoraj omenjenem članku):
https://www.pnas.org/content/115/25/6506
Today, the biomass of humans (≈0.06 Gt C;
SI Appendix, Table S9) and the biomass of livestock (≈0.1 Gt C, dominated by cattle and pigs;
SI Appendix, Table S10) far surpass that of wild mammals, which has a mass of ≈0.007 Gt C (
SI Appendix, Table S11). This is also true for wild and domesticated birds, for which the biomass of domesticated poultry (≈0.005 Gt C, dominated by chickens) is about threefold higher than that of wild birds (≈0.002 Gt C;
SI Appendix, Table S12).
Razlaga za 1 Gt (karkoli že je)
For ease of discussion, we report biomass in gigatons of carbon, with 1 Gt C = 1015 g of carbon.