;"Estimator ± S.E.";F;P "Variables included" Constant;"-4.56 ±1.67";7.46;<0.007 SEEPWEED;"0.15 ±0.13";147.67;<0.001 DROPPINGS;"-0.40 ±0.11";13.55;<0.001 HOUR;"9.80 ±3.32";8.64;<0.004 "Variables excluded" HALOPHITES;;0.04;0.823 SALSOLA;;0.08;0.782 ESPARTO;;0.89;0.347 WEATGRASS;;0.05;0.817 HERBACEUS;;0.17;0.670 CLAYED;;2.67;0.104 PLOWED;;0.12;0.729 SALT;;0.00;0.988 STUBBLE;;0.14;0.705 LAGOON;;0.69;0.406