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Relationships between leaf age and the food quality of cottonwood foliage for the gypsy moth, Lymantria dispar (1987)

Meyer, G. A. ; Montgomery, M. E.

Springer

Oecologia 72 (1987), S. 527-532

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ISSN: 1432-1939

Keywords: Lepidoptera ; Salicaceae ; Herbivory ; Resource allocation ; Chemical defense

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Summary The cottonwood tree, Populus deltoides, continues to produce leaves late into the growing season, exposing midseason herbivores to leaves of a wide range of maturity. Gypsy moth larvae preferred and grew best on the oldest cottonwood leaves and suffered higher mortality and 85% less growth when fed young, expanding leaves. Concentration of phenolics in the youngest leaves was 3 times that in the oldest leaves and was negatively correlated with caterpillar growth rate. The active phenolics were not identified; tannin was present but its concentration changed more with season than leaf age.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00378978

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