00507nam a2200157 a 450000500170000008200190001710000260003624500660006226000480012830000240017669000330020096400250023399700120025899900150027095200640028520251203090505.0  a574.5,bD, mac  aMacArthur, Robert, H.  aGeographical ecology: patterns in the distribution of species  aPrincetonbPrinceton University Pressc1984  axviii, 269p, 22 cm.  aGeography-Ecological aspects  bEngc100de010fg_  a18277 W  c9450d9450  02104070aPUbPUd1998-04-08l0o574.5, D, macp18277yBK