Ellenberg heavy metals value

Formal name:  plant populations resistance to heavy metals indicator value according to Ellenberg
Abbreviation:  B,b
Local identifier:  TOP782
Synonym Term:  plant heavy metal resistance
Related Term:  heavy metal tolerance
Definition:  a feature of the plant population (EFO:plant population) or plant species (Mayr:species) describing the occurrence of its individulas in sites with more or less high concentrations of lead zinc or other heavy metals
Formal Unit:  unitless (ordinal)

Comment:  The values are indicators for the ecological behavior of a distinct plant species distributed in Central Europe, i.e. for its occurance under field conditions, including competition of many other plants. The different heavy metal resitant values can be ordered according to increasing resistance as follows: b, B
Reference:  Ellenberg, H., Weber, H. E., Duell, R., Wirth, V., Werner, W., Paulissen, D. (1992): Zeigerwerte der Pflanzen in Mitteleuropa, 2nd edition, Scripta Geobotanica, Vol. 18, Goltze KG, Goettingen