It is thanks to the multitude of different species and their interaction with each other that coastlines are not eroded away, that avalanches do not occur, and that bodies of water are self-cleaning.
Datorită multitudinii de specii diferite şi a interacţiunii lor una cu cealaltă, ţărmurile nu sunt erodate, nu au loc avalanşe, iar apele se curăţă singure.