Article (Scientific journals)
Edaphic niches of metallophytes from southeastern Democratic Republic of Congo: implications for post-mining restoration
Boisson, Sylvain; Monty, Arnaud; Lebrun, Julie et al.
2016In Journal for Nature Conservation
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Keywords :
conservation; copper; cobalt; endemic; metallophyte; nutrient; response curve; violin plot
Abstract :
[en] In southeastern D. R. Congo, about 550 metallophytes grow on soils with high copper and cobalt concentrations, 57 of which are endemics to these metalliferous environments. About 70% of those endemics are considered threatened by destruction of habitats through mining activities. To provide guidelines for future restoration programs, the edaphic ecological niches of eight copper endemics were studied using a pragmatic sampling method adapted for urgent conservation needs. Niches were modelled using violin plot along Cu, Co and C:N gradients representing the two main independent edaphic gradients among nine edaphic variables (C, N, C:N, K, P, pH, Co, Cu, and Mn). Copper endemics presented distinct edaphic niches along the copper and cobalt gradients, but differentiation was lower along the C:N gradient. In addition, edaphic elements presented covariations among them and metalliferous soils had higher nutrient and element content compared to the non-metalliferous soils of the region dominated by the Miombo woodland. The complexity of the soil composition and the edaphic niches of copper endemics revealed an important challenge in the implementation of the species conservation and the habitat restoration strategies of post-mining sites.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Boisson, Sylvain ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Monty, Arnaud ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Lebrun, Julie
Seleck, Maxime  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Mahy, Grégory ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage
Language :
English
Title :
Edaphic niches of metallophytes from southeastern Democratic Republic of Congo: implications for post-mining restoration
Publication date :
2016
Journal title :
Journal for Nature Conservation
ISSN :
1617-1381
eISSN :
1618-1093
Publisher :
Elsevier GmbH, Urban & Fischer Verlag
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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