00524naa a2200181 a 450000100080000000500110000800800410001910000180006024501150007826000090019365000240020265000210022665000110024765000130025865000130027170000200028477300380030416162471995-06-27       1992    bl ---       0--  u    #d1 aVINTON, M. A.  aEffects of bison grazing on Andropogon gerardii and Panicum virgatum in burned and unburned tallgrass prairie.  c1992  aAndropogon gerardii  aPanicum virgatum  aManejo  aPastagem  aQueimada1 aHARTNETT, D. C.  tOecologiagv.90, p.374-382, 1992.