Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
How to catch the patch? A dendrometer study of the radial increment through successive cambia in the mangrove Avicennia
Robert, E.M.R.; Jambia, A.H.; Schmitz, N.; De Ryck, D.J.R.; De Mey, J.; Kairo, J.G.; Dahdouh-Guebas, F.; Beeckman, H.; Koedam, N. (2014). How to catch the patch? A dendrometer study of the radial increment through successive cambia in the mangrove Avicennia. Ann. Bot. 113(4): 741-752. https://dx.doi.org/10.1093/aob/mcu001
In: Annals of Botany. Academic Press: London. ISSN 0305-7364; e-ISSN 1095-8290
| |
Trefwoord |
Avicennia marina (Forssk.) Vierh. [WoRMS]
|
Author keywords |
Automatic point dendrometers; Avicennia marina; local climate andenvironmental conditions; mangrove; patchy growth; pinning analysis;radial tree stem dynamics; successive cambia |
Auteurs | | Top |
- Robert, E.M.R.
- Jambia, A.H.
- Schmitz, N.
|
- De Ryck, D.J.R.
- De Mey, J.
- Kairo, J.G.
|
- Dahdouh-Guebas, F.
- Beeckman, H.
- Koedam, N.
|
Abstract |
Background and Aims Successive vascular cambia are involved in the secondary growth of at least 200 woody species from >30 plant families. In the mangrove Avicennia these successive cambia are organized in patches, creating stems with non-concentric xylem tissue surrounded by internal phloem tissue. Little is known about radial growth and tree stem dynamics in trees with this type of anatomy. This study aims to (1) clarify the process of secondary growth of Avicennia trees by studying its patchiness; and (2) study the radial increment of Avicennia stems, both temporary and permanent, in relation to local climatic and environmental conditions. A test is made of the hypothesis that patchy radial growth and stem dynamics enable Avicennia trees to better survive conditions of extreme physiological drought. Methods Stem variations were monitored by automatic point dendrometers at four different positions around and along the stem of two Avicennia marina trees in the mangrove forest of Gazi Bay (Kenya) during 1 year. Key Results Patchiness was found in the radial growth and shrinkage and swelling patterns of Avicennia stems. It was, however, potentially rather than systematically present, i.e. stems reacted either concentrically or patchily to environment triggers, and it was fresh water availability and not tidal inundation that affected radial increment. Conclusions It is concluded that the ability to develop successive cambia in a patchy way enables Avicennia trees to adapt to changes in the prevailing environmental conditions, enhancing its survival in the highly dynamic mangrove environment. Limited water could be used in a more directive way, investing all the attainable resources in only some locations of the tree stem so that at least at these locations there is enough water to, for example, overcome vessel embolisms or create new cells. As these locations change with time, the overall functioning of the tree can be maintained. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.