Information

Ecological parameter:  current preference

Parameter group: habitat related parameters

Explanation:
The parameter provides information on the preference of a taxon for a certain current velocity class following Schmedtje & Colling (1996).

Schmedtje, U. & Colling, M. (1996): Ökologische Typisierung der aquatischen Makrofauna. Informationsberichte des Bayerischen Landesamtes für Wasserwirtschaft 4/96, 543 pp.

Classification system: single category assignment system

Abbreviations:

Category name	Abbreviation	Explanation
limnobiont	lib	occurring only in standing waters
limnophil	lip	preferably occurring in standing waters; avoids current; rarely found in slowly flowing streams
limno- to rheophil	lrp	preferably occurring in standing waters, but regularly occurring in slowly flowing streams
rheo- to limnophil	rlp	usually found in streams; prefers slowly flowing streams and lentic zones; also found in standing waters
rheophil	rhp	occurring in streams; prefers zones with moderate to high current
rheobiont	rhb	occurring in streams; bound to zones with high current
indifferent	ind	no preference for a certain current velocity

Assigned taxa for each higher systematic unit

Taxagroup	Number of assigned taxa / total number of taxa - percentage
Porifera	6 / 12 - 50%
Coelenterata	6 / 13 - 46.1%
Turbellaria	18 / 61 - 29.5%
Nematomorpha	1 / 1 - 100%
Gastropoda	70 / 241 - 29%
Bivalvia	52 / 77 - 67.5%
Polychaeta	1 / 13 - 7.6%
Oligochaeta	88 / 240 - 36.6%
Hirudinea	29 / 68 - 42.6%
Branchiobdellida	4 / 8 - 50%
Araneae	1 / 7 - 14.2%
Hydrachnidia	3 / 253 - 1.1%
Crustacea	65 / 270 - 24%
Ephemeroptera	227 / 353 - 64.3%
Odonata	165 / 174 - 94.8%
Plecoptera	265 / 576 - 46%
Heteroptera	73 / 124 - 58.8%
Megaloptera	3 / 6 - 50%
Planipennia	6 / 12 - 50%
Coleoptera	580 / 2678 - 21.6%
Hymenoptera	1 / 39 - 2.5%
Trichoptera	990 / 1439 - 68.7%
Lepidoptera	6 / 19 - 31.5%
Diptera (excl. Chironomidae)	101 / 2404 - 4.2%
Chironomidae	40 / 1315 - 3%
Bryozoa	11 / 19 - 57.8%