Ecological parameter: altitude preference (WFD)

Parameter group: region related parameters

Explanation:
The altitudinal preference according to the Water Framework Directive (WFD) summarises the preferred altitude of a species within three altitudinal categories as defined by the WFD.

WFD: Directive 2000/60/EC of the European Parliament and of the Council establishing a framework for the Community action in the field of water policy

Classification system: presence/absence assignment system
A description of the coding system can be found here  Abbreviations/Coding Systems

Abbreviations:

Category name:	Abbreviations:	Explanation:
> 800 m	g8h	above 800 m sea level
200 - 800 m	28h	between 200 and 800 m sea level
< 200 m	l2h	below 200 m sea level
maximum	max	maximum altitude
minimum	min	minimum altitude

Assigned taxa for each higher systematic unit:

Taxagroup	Number of assigned taxa / total number of taxa - percentage
Chironomidae	444 / 1315 - 33.7%
Ephemeroptera	269 / 353 - 76.2%
Odonata	147 / 174 - 84.4%
Plecoptera	531 / 576 - 92.1%
Trichoptera	703 / 1439 - 48.8%