Ecological parameter: endemism
Parameter group: ecoregion related parameters
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
|ecoregion number||er||number of the ecoregion, in which the taxon occurs|
|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%|