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The empirical study of forest ecosystem dynamics is difficult because of the longevity of trees. Many types of models were developed to assist with th...
Read moreThe desert locust is a migratory pest whose population development in remote areas must be monitored to prevent outbreaks, upsurges and plagues. Monit...
Read moreIn three experiments, begun in successive years, seeds of twenty species of annual weeds were mixed with 15 cm of soil confined in cylinders sunk in t...
Read moreLaboratory and field experiments were carried out in Ontario, Canada, in 1985-86 on Diabrotica virgifera virgifera. Most males emerged from pupae at t...
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