Article (Scientific journals)
How Tightly Linked Are Pericopsis elata (Fabaceae) Patches to Anthropogenic Disturbances in Southeastern Cameroon?
Bourland, Nils; Cerisier, François; Daïnou, Kasso et al.
2015In Forests, 6 (2), p. 293-310
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Keywords :
Afrormosia; Assamela; Central Africa; tropical rain forest; autecology; forest history; shifting cultivation; past human disturbances; charcoal
Abstract :
[en] While most past studies have emphasized the relationships between specific forest stands and edaphic factors, recent observations in Central African moist forests suggested that an increase of slash-and-burn agriculture since 3000–2000 BP (Before Present) could be the main driver of the persistence of light-demanding tree species. In order to examine anthropogenic factors in the persistence of such populations, our study focused on Pericopsis elata, an endangered clustered timber species. We used a multidisciplinary approach comprised of botanical, anthracological and archaeobotanical investigations to compare P. elata patches with surrounding stands of mixed forest vegetation (“out-zones”). Charcoal samples were found in both zones, but were significantly more abundant in the soils of patches. Eleven groups of taxa were identified from the charcoals, most of them also present in the current vegetation. Potsherds were detected only inside P. elata patches and at different soil depths, suggesting a long human presence from at least 2150 to 195 BP, as revealed by our charcoal radiocarbon dating. We conclude that current P. elata patches most likely result from shifting cultivation that occurred ca. two centuries ago. The implications of our findings for the dynamics and management of light-demanding tree species are discussed.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Archaeology
Life sciences: Multidisciplinary, general & others
Environmental sciences & ecology
Arts & humanities: Multidisciplinary, general & others
Author, co-author :
Bourland, Nils;  Musée royal de l'Afrique centrale > Biologie du bois
Cerisier, François
Daïnou, Kasso  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Livingstone Smith, Alexandre;  Musée royal de l'Afrique centrale > Préhistoire et archéologie
Hubau, Wannes;  Musée royal de l'Afrique centrale > Biologie du bois
Beeckman, Hans;  Musée royal de l'Afrique centrale > Biologie du bois
Brostaux, Yves  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Statistique, Inform. et Mathém. appliquée à la bioingénierie
Fayolle, Adeline  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Biwolé, Achille;  Université de Liège - ULiège > BIOSE > Gestion des Ressources Forestières
Feteke, Fousseni ;  Université de Liège > Forêts, Nature et Paysage > Gestion des ressources forestières et des milieux naturels
Gillet, Jean-François
Morin-Rivat, Julie ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Lejeune, Philippe ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Ntoundé Tiba, Eric
Van Acker, Joris;  Universiteit Gent - Ugent
Doucet, Jean-Louis ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
More authors (6 more) Less
Language :
English
Title :
How Tightly Linked Are Pericopsis elata (Fabaceae) Patches to Anthropogenic Disturbances in Southeastern Cameroon?
Publication date :
29 January 2015
Journal title :
Forests
ISSN :
1999-4907
Publisher :
MDPI AG, Basel, Switzerland
Volume :
6
Issue :
2
Pages :
293-310
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ULiège. GxABT - Liège Université. Gembloux Agro-Bio Tech [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Enabel : Agence Belge de Développement [BE]
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