Journal article
Leaf nitrogen and its effects on the rate of herbivory on selected eucalypts in the jarrah forest
Forest Ecology and Management, Vol.41(3-4), pp.167-177
1991
Abstract
This study measured the relationship between the rate of leaf consumption by insect herbivores and the level of leaf nitrogen in selected species of eucalypts. Sampling was carried out on a monthly basis from Eucalyptus accedens, Eucalyptus resinifera and Eucalyptus marginata in areas rehabilitated following bauxite mining and from E. marginata in a forest regenerated after clearfelling. The rate of herbivory was examined on leaves aged 1–3 years. The mean monthly rate of herbivory of all species varied from 0.9 to 1.9% of the total leaf area and was positively correlated (P < 0.05) with the level of leaf nitrogen in E. marginata. The previous month's level of nitrogen was also positively correlated to the rate of herbivory in the current month in all species. The level of leaf nitrogen was negatively correlated to the current and previous month's level of herbivore abundance and the current month's rate of herbivory in E. resinifera. These correlations suggest two possibilities. Firstly, that in some eucalyptus the level of leaf nitrogen may be lowered when the level of predation on leaves is high. Secondly, the herbivorous insects may preferentially feed on eucalypt leaves having a high amount of nitrogen.
Details
- Title
- Leaf nitrogen and its effects on the rate of herbivory on selected eucalypts in the jarrah forest
- Authors/Creators
- G. Casotti (Author/Creator)J.S. Bradley (Author/Creator)
- Publication Details
- Forest Ecology and Management, Vol.41(3-4), pp.167-177
- Publisher
- Elsevier BV
- Identifiers
- 991005545278807891
- Copyright
- © 1991 Published by Elsevier B.V.
- Murdoch Affiliation
- School of Biological and Environmental Sciences; School of Veterinary Studies
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.32 Entomology
- 3.32.54 Insect-Plant Interactions
- Web Of Science research areas
- Forestry
- ESI research areas
- Plant & Animal Science