Effects of disturbance frequency, species traits and resprouting on directional succession in an individual-based model of forest dynamics

Caplat, Paul and Anand, Madhur (2009) Effects of disturbance frequency, species traits and resprouting on directional succession in an individual-based model of forest dynamics. Journal of Ecology, 97 5: 1028-1036. doi:10.1111/j.1365-2745.2009.01541.x


Author Caplat, Paul
Anand, Madhur
Title Effects of disturbance frequency, species traits and resprouting on directional succession in an individual-based model of forest dynamics
Journal name Journal of Ecology   Check publisher's open access policy
ISSN 0022-0477
1365-2745
Publication date 2009-09
Sub-type Article (original research)
DOI 10.1111/j.1365-2745.2009.01541.x
Volume 97
Issue 5
Start page 1028
End page 1036
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Formatted abstract
1.  Succession theory focuses on the position of species along the shade tolerance gradient and their ability to colonize recently disturbed patches and has for decades overlooked resprouting as a key trait in community patterns.
2.  We study how different species traits interact with disturbance frequency to change species dominance in the canopy, focusing on the effects of resprouting ability.
3.  We develop an individual-based model that simulates the dynamics of three species paper birch Betula papyrifera Marsh, white pine Pinus strobus L. and sugar maple Acer saccharum Marsh., characterized by different successional strategies, as observed in northern Minnesota forests. We tested (i) how different disturbance frequencies, (ii) sugar maple resprouting and (iii) paper birch resprouting change successional patterns.
4.  We show that three disturbance frequency classes produce three different outcomes, each dominated by a different species, with lower disturbance frequency favouring later successional species.
5.  The importance of resprouting ability for success in the canopy depends on the species’ other life-history traits. Sugar maple is able to dominate the community at all disturbance frequency classes with resprouting, whereas the inclusion of resprouting for paper birch does not change the successional patterns.
6.  White pine is indirectly favoured by sugar maple’s resprouting ability, excluding paper birch from the community at disturbance frequency classes that would see paper birch dominance in the absence of resprouting.
7.  Synthesis.  We model tree life histories in a disturbed environment and test how the inclusion of resprouting changes succession patterns. Our results confirm the recent interest of taking into account resprouting, as it can bend succession directionality, and thus change community composition in response to disturbance. This has wide consequences for predicting forest diversity patterns as well as invasion phenomena in a changing world.
Keyword Disturbance regime
Fire
Great Lakes forest
Paper birch
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 03 Sep 2009, 07:44:04 EST by Mr Andrew Martlew on behalf of School of Biological Sciences