148 gives an initial direction by stating (with reference to Alexander P. Levich) that:“ecological code [...] can be defined as the sets of (sign) relations (regular irreducible correspondences) characteristic to an entire ecosystem, including the interspecific relations in particular”(Kull 2010: 354). It is, however, not entirely clear, what the relationship between “the sets of (sign) relations” and local semiotic processes is, or to put it in other words, how exactly semiosis and communication can take part in large-scale ecosystem regulation. My initial suggestion is that the properties and functioning of codes on the ecosystem level are rather different from the ways how codes regulate human communication or any other intraspecific communication.