Species composition response to treatments.

<p>Y-axis in Principal Response Curves PRC diagram: first component of variation explained by differences in treatment over time. X-axis: control treatments. Dotted line: manure treatment. Solid line: topsoil treatment. The weighting of each species on the principal axis (right of PRC diagram) represents affinity of each species to treatments. Species with positive weighting in PRC1 are abundant in Topsoil plots while species with negative weighting are abundant in Manure plots. Only species showing fits greater than 5 are shown. <b>Anth.arv,</b> <i>Anthemis arvensis</i>; <b>Brom.rub,</b> <i>Bromus rubens</i>; <b>Brom.dia,</b> <i>Bromus diandrus</i>; <b>Brom.tec,</b> <i>Bromus tectorum</i>; <b>Cory. fas,</b> <i>Corynephorus fasciculatus</i>; <b>Epil. Bra,</b> <i>Epilobium brachicarpum;</i> <b>Fila spa,</b> <i>Filago spatulata;</i> <b>Lina.spa,</b> <i>Linaria spartea</i>; <b>Trif.arv.,</b> <i>Trifolium arvense</i>; <b>Trif.che,</b> <i>Trifolium cherleri</i>; <b>Trif.glo,</b> <i>Trifolium glomeratum</i>.