Tree Ring Evidence for Chronic Insect Suppression of Productivity in Subalpine Eucalyptus

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Science  29 Sep 1978:
Vol. 201, Issue 4362, pp. 1244-1246
DOI: 10.1126/science.201.4362.1244


Experimental reduction of insect grazing pressures suggests that longterm, continuous feeding by phytophagous insects has severely depressed growth and productivity of subalpine Eucalyptus trees (measured by annual ring growth) for at least 25 years.