Ecological parameter: endemism

Parameter group: ecoregion related parameters

Explanation:
Endemism describes species with limited distribution ranges. Endemic species are often characterised by a restricted ecological niche and a limited dispersal capacity. Two types of endemism are provided: (1) ecoregion-endemism (large-scale endemism): taxa occurring in only one ecoregion (sensu Illies 1967, 1978), (2) micro-endemism: taxa restricted e.g. to a single mountain range within an ecoregion.

Illies, J. (ed.) 1967. Limnofauna Europaea. 1st Edition. Gustav Fischer Verlag, Stuttgart. 474pp. Illies, J. (ed.) 1978. Limnofauna Europaea. 2nd Edition. Gustav Fischer Verlag, Stuttgart. 552pp.

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

Abbreviations:

Category name:	Abbreviations:	Explanation:
ecoregion-endemism	ls	large-scale endemism
ecoregion number	er	number of the ecoregion, in which the taxon occurs
micro-endemism	mic	micro-endemism

Assigned taxa for each higher systematic unit:

Taxagroup	Number of assigned taxa / total number of taxa - percentage
Chironomidae	171 / 1315 - 13%
Ephemeroptera	120 / 353 - 33.9%
Odonata	42 / 174 - 24.1%
Plecoptera	319 / 576 - 55.3%
Trichoptera	755 / 1439 - 52.4%