über Dynamischer Prozess (Hilfe)

yuyu2004

Hallo, bitten helfen Sie mir.  <br />Ich habe eine Frage über Dynamischer Prozess  .<br />The interaction between two populations with densities N1 and N2 is modelled by <br /><br />DN1/dt = r*N1 (1-N1/K) – a*N1*N2*(1- exp[-b*N1])<br />DN2/dt = -d*N2+ N2*e(1- exp[-b*N1])<br /><br />Where  a,  b, d, e, r and K are positive constants. What type of interaction  exists between <br />N1 and N2 ? What do the various terms imply ecologically ?<br /><br />Danke sch&ouml;nen.