Girdling, or the removal of a strip of bark around a tree’s outer circumference, is often used to study carbon relations. De Schepper and Steppe adapt an existing tree model describing water and carbon transport in order to evaluate the mechanisms behind girdling responses in 3-year-old oak, Quercus robur. Induced changes in stem growth are mathematically linked to changes in turgor, sugar and altered loading/unloading rates, and close agreement is found between measured and simulated results.
Historical and ongoing hybridization between the oak species Quercus petraea and Q. robur leads to difficulty in identifying the taxonomic status of individual trees. Despite this, Beatty et al. using genetic and...
Various transpiration and growth traits of seedlings of pedunculate oak, Quercus robur, are correlated with their multilocus heterozygosity (MLH).
Trees can mate assortatively, which may be a result of variable compatibility among trees due to genetic and/or environmental factors.
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