1. Dept of Biogeography; Univ. of Bayreuth, Universitätstraße 30; DE-95447 Bayreuth Germany
2. Bayreuth Centre of Ecology and Environmental Research (BayCEER); Germany
3. Inst. de Recherche pour le Développement (IRD), UMR AMAP, CIRAD; TA A51/PS2 FR-34398 Montpellier France
4. Dept of Disturbance Ecology; Univ. of Bayreuth, Universitätstraße 30; DE-95447 Bayreuth Germany
5. Bayreuth Center of Ecology and Environmental Research (BayCEER), Univ. of Bayreuth; Dr. Hans-Frisch-Straße 1-3 DE-95448, Bayreuth Germany
6. Dept of Biogeography; Univ. of Bayreuth, Universitätstrasse 30; DE-95444 Bayreuth Germany