00459nam a2200169 a 450000500170000008200130001710000210003024500230005126000300007430000290010463000120013370000260014596400250017199700180019699900170021495200580023120251203091010.0  a577bEHR  aEhrlich, Paul R.  aScience of ecology  aNew YorkbMacmillanc1987  axxv, 710 p.b24 cm.cHB.  aEcology  aRoughgarden, Jonathan  bENGc100de010fg_  a33088 LIBSC C  c26299d26299  00104070aPUbPUd1998-04-08l0o577 EHRp33088yBK