Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome
The tropical forests of the Congo Basin biome are particularly diverse. The question arises whether the cambial activity of the multitude of tree species shows a periodic signal. Given the anticipated increases in temperature and changes in precipitation patterns, these forests may face significant...
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Elsevier
2025-10-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989425003415 |
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| author | Basile Luse Belanganayi Christophe Mbungu Phaka Brice Yannick Djiofack Félix Laurent Kévin Liévens Nestor K. Luambua Trésor Bolaya Nils Bourland Wannes Hubau Hans Beeckman Tom De Mil |
| author_facet | Basile Luse Belanganayi Christophe Mbungu Phaka Brice Yannick Djiofack Félix Laurent Kévin Liévens Nestor K. Luambua Trésor Bolaya Nils Bourland Wannes Hubau Hans Beeckman Tom De Mil |
| author_sort | Basile Luse Belanganayi |
| collection | DOAJ |
| description | The tropical forests of the Congo Basin biome are particularly diverse. The question arises whether the cambial activity of the multitude of tree species shows a periodic signal. Given the anticipated increases in temperature and changes in precipitation patterns, these forests may face significant threats impacting tree growth and carbon sequestration, highlighting the need for studies on cambial dynamics and their resistance adaptability to climate change. This study examines cambial phenology in two semi-deciduous rainforests in the Democratic Republic of Congo, each with a different precipitation pattern. The research focused on the temporal dynamics of cambial cell production and maturation in relation to tree morphological traits, leaf phenology, reproductive traits, and climatic variables. Biweekly microcores were taken from 30 trees across 10 species, and radius dendrometer data from 59 trees in 20 species complemented the study. Microsections were analyzed to identify cambial activity, supported by measured stem diameter variations. Results: revealed complex cambial dynamics without patterns of low cambial activity across or within species. Some species showed irregular cycles of activity, while others were continuously active, suggesting high resilience. Trees from the site with a defined dry season (Luki) were more responsive to temperature and precipitation, potentially increasing their vulnerability to climate change. In contrast, tree growth from the less seasonal site of Yangambi is strongly driven by internal dynamics, influenced by morphological and reproductive traits. |
| format | Article |
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| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
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| series | Global Ecology and Conservation |
| spelling | doaj-art-26d5ad16f1a84e1e9b32e4e5b539a4802025-07-26T05:23:28ZengElsevierGlobal Ecology and Conservation2351-98942025-10-0162e03740Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biomeBasile Luse Belanganayi0Christophe Mbungu Phaka1Brice Yannick Djiofack2Félix Laurent3Kévin Liévens4Nestor K. Luambua5Trésor Bolaya6Nils Bourland7Wannes Hubau8Hans Beeckman9Tom De Mil10Forest is Life, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium; Service of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Faculté des Sciences, Université Officielle de Ruwenzori, Butembo, Democratic Republic of the Congo; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the Congo; Corresponding author at: Forest is Life, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium.Institut National pour l’Etude et la Recherche Agronomiques, Station de Luki, Democratic Republic of the CongoService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the Congo; Laboratory of Wood Technology, Faculty of Bioscience Engineering, Gent University, Ghent, BelgiumService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the Congo; Laboratory of Wood Technology, Faculty of Bioscience Engineering, Gent University, Ghent, BelgiumService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the CongoService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the Congo; Laboratory of Wood Technology, Faculty of Bioscience Engineering, Gent University, Ghent, Belgium; Faculté des Sciences Agronomiques, Université Officielle de Mbujimayi, Mbujimayi, Democratic Republic of the CongoLaboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the CongoLe Centre d’Analyse des Risques du Changement climatique (CERAC), Brussels, BelgiumService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, Belgium; Laboratoire de Biologie du Bois, Institut National pour l’Etude et la Recherche Agronomiques, Yangambi, Tshopo, Democratic Republic of the Congo; Laboratory of Wood Technology, Faculty of Bioscience Engineering, Gent University, Ghent, BelgiumService of Wood Biology, Royal Museum for Central Africa (RMCA), Tervuren, BelgiumForest is Life, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, BelgiumThe tropical forests of the Congo Basin biome are particularly diverse. The question arises whether the cambial activity of the multitude of tree species shows a periodic signal. Given the anticipated increases in temperature and changes in precipitation patterns, these forests may face significant threats impacting tree growth and carbon sequestration, highlighting the need for studies on cambial dynamics and their resistance adaptability to climate change. This study examines cambial phenology in two semi-deciduous rainforests in the Democratic Republic of Congo, each with a different precipitation pattern. The research focused on the temporal dynamics of cambial cell production and maturation in relation to tree morphological traits, leaf phenology, reproductive traits, and climatic variables. Biweekly microcores were taken from 30 trees across 10 species, and radius dendrometer data from 59 trees in 20 species complemented the study. Microsections were analyzed to identify cambial activity, supported by measured stem diameter variations. Results: revealed complex cambial dynamics without patterns of low cambial activity across or within species. Some species showed irregular cycles of activity, while others were continuously active, suggesting high resilience. Trees from the site with a defined dry season (Luki) were more responsive to temperature and precipitation, potentially increasing their vulnerability to climate change. In contrast, tree growth from the less seasonal site of Yangambi is strongly driven by internal dynamics, influenced by morphological and reproductive traits.http://www.sciencedirect.com/science/article/pii/S2351989425003415Central Africa forestsSecondary growthCarbon sequestrationCambial activityXylogenesisLignification |
| spellingShingle | Basile Luse Belanganayi Christophe Mbungu Phaka Brice Yannick Djiofack Félix Laurent Kévin Liévens Nestor K. Luambua Trésor Bolaya Nils Bourland Wannes Hubau Hans Beeckman Tom De Mil Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome Global Ecology and Conservation Central Africa forests Secondary growth Carbon sequestration Cambial activity Xylogenesis Lignification |
| title | Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome |
| title_full | Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome |
| title_fullStr | Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome |
| title_full_unstemmed | Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome |
| title_short | Timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the Congo Basin biome |
| title_sort | timing of cambial phenology of rainforest trees as indicator of climate sensitivity of the congo basin biome |
| topic | Central Africa forests Secondary growth Carbon sequestration Cambial activity Xylogenesis Lignification |
| url | http://www.sciencedirect.com/science/article/pii/S2351989425003415 |
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