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Development of tree hollows in pedunculate oak (Quercus robur)

Ranius, Thomas and Niklasson, Mats and Berg, Niclas (2009). Development of tree hollows in pedunculate oak (Quercus robur). Forest ecology and management. 257 :1 , 303-310
[Research article]

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Official URL: http://dx.doi.org/10.1016/j.foreco.2008.09.007


Many invertebrates, birds and mammals are dependent on hollow trees. For landscape planning that aims at persistence of species inhabiting hollow trees it is crucial to understand the development of such trees. In this study we constructed an individual-based simulation model to predict diameter distribution and formation of hollows in oak tree populations. Based on tree-ring data from individual trees, we estimated the ages when hollow formation commences for pedunculate oak (Quercus robur) in southeast Sweden. At ages of about 200–300 years, 50 % of the trees had hollows. Among trees < 100 years old, less than 1 % had hollows, while all > 400-year-old trees had hollows. Hollows formed at earlier ages in fast-growing trees than in slow-growing trees, which may be because hollows are formed when big branches shed, and branches are thicker on fast-growing trees in comparison to slow-growing trees of the same age. The simulation model was evaluated by predicting the frequency of presence of hollows in relation to tree size in seven oak stands in the study area. The evaluation suggested that future studies should focus on tree mortality at different conditions. Tree ring methods on individual trees are useful in studies on development of hollow trees as they allow analysis of the variability in time for hollow formation among trees.

Authors/Creators:Ranius, Thomas and Niklasson, Mats and Berg, Niclas
Title:Development of tree hollows in pedunculate oak (Quercus robur)
Series Name/Journal:Forest ecology and management
Year of publishing :2009
Page range:303-310
Additional Information:Published by Elsevier in Forest Ecology and Management. doi:10.1016/j.foreco.2008.09.007
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:Obsolete subject words > NATURAL SCIENCES > Biology > Organism biology
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry
Keywords:dendrochronology, tree cavity, tree growth
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Additional ID:
Type of IDID
ID Code:5767
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Thomas Ranius
Deposited On:07 Mar 2011 00:00
Metadata Last Modified:02 Dec 2014 10:43

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