Reference : Modelling realized niche of metallophyte species along copper and cobalt gradients on Ka...
Scientific congresses and symposiums : Poster
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/124204
Modelling realized niche of metallophyte species along copper and cobalt gradients on Katanga copper hills
English
[fr] Modélisation de la niche réalisée des espèces métallophytes le long des gradients de cuivre et de cobalt des collines du Katanga
Boisson, Sylvain mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
Seleck, Maxime mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
Guillaume, Arielle [ > > ]
Monty, Arnaud mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
Brostaux, Yves mailto [Université de Liège - ULg > Sciences agronomiques > Statistique, Inform. et Mathém. appliquée à la bioingénierie >]
Mahy, Grégory mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
10-Feb-2012
No
17th Symposium on Applied Biological Sciences
10 février 2012
Katholieke Universiteit Leuven
Leuven
Belgique
[en] realized niche ; Generalized additive model (GAM) ; metallophyte ; copper/cobalt ; optima ; tolerance ; Katanga (Congo R.D.)
[en] In South Central Africa were identified more than 650 plant species tolerant to heavy metals, several of which endemic to Katanga and critically endangered by mining activities. These metallophyte are distributed over a hundred hills containing high copper and cobalt concentrations (20 to 10000 mg/kg for copper and 2 to 1000 mg/kg for cobalt). To understand the response of metallophyte to heavy metals, the ecological niches of 80 cupro-cobaltophytes were modeled with general additive models (GAM). Results show that (1) three groups of species were identified according to their optimum along a metal concentrations gradient and (2) a positive relationship exists between niche amplitude and optimum copper concentration.
http://hdl.handle.net/2268/124204

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