optional, single

—

With plants, <dominance> indicates the degree of covering (dominance) of the ground with this plant. Allowed keywords are: undetermined, less-than-1/20, 1/20-up-to-1/4, 1/4-up-to-1/2, 1/2-up-to-3/4, greater-than-3/4, single-individual (division according to Emschermann, P., Hoffrichter, O., Körner, H., Zissler, D. (Ed.), Meeresbiologische Exkursion, Gustav Fischer Verlag, Stuttgart, Jena, 1992, ISBN 3-437-20414-9, page 46).

If the degree of covering cannot be determined, <dominance> can be omitted, or <dominance>0</dominance> is given.

<species>

—

<abundance>, <species>

<!-- degree of covering could not be determined -->
<!-- (in this case the statement can also be omitted) -->
<dominance>0</dominance>
                

<!-- degreee of covering 1/4 up to 1/2 of the area investigated-->
<dominance>3</dominance>
                

<!-- only single individuals -->
<dominance>+</dominance>