Nitella flexilis (L.) C. Agardh
50034
Species
ISFS :
Checklist : 50034
ISFS :
Checklist : 50034
Contains :
Synthesis
NO INFORMATION
Habitat and distribution inside Switzerland
Status
IUCN status
Critically endangeredNational Priority
2 - high national priorityInternational responsibility
1 - weakConservation
Threats
Habitatverlust
Hohe Wassertemperaturen
Mangel an Dynamik in aquatischen Lebensräumen
Gewässereutrophierung
Wissenslücken
Distribution map
Habitat and distribution inside Switzerland
Ecology
Life form
Habitats
Milieux Phytosuisse (© Prunier et al. 2017)
Habitats © Delarze & al. 2015
 | 1.1.1 - Armleuchteralgengesellschaft (Charion) |
bold
Dominant species, influencing the appearance of the habitat
Character species
Less strictly linked to a specific habitat
Ecological indicator values by © Landolt & al. (2010)
| Soil factors | Climatic factors | Salinity tolerance | |||
|---|---|---|---|---|---|
| Humidity Value H | -- | Light Value L | -- | Salinity Index | -- |
| Reaction Value R | -- | Temperature factor T | -- | ||
| Nutriments value N | -- | Continentality K | -- | ||
- Ecological values legend
Humidity Value H 1 very dry 1+ dry 2 moderatly dry 2+ moist 3 medium wet 3+ wet 4 very wet 4+ soggy 5 submerged or underwater f plants living in running water u mostly submerged plants v partly submerged, partly floating plants w humidity moderately variable (± scale of 1-2) w+ highly variable humidity (scale exceeding ± 2) Reaction Value R 1 Very acid (pH 2.5-5.5) 2 acid (pH 3.5-6.5) 3 lightly acid to neutral (pH 4.5-7.5) 4 neutral to basic (pH 5.5-8.5) 5 basic (pH 6-5 -> 8.5 Nutriments value N 1 very low in nutrients 2 low in nutriments 3 medium-poor to medium-rich in nutrients 4 rich in nutriments 5 very rich in nutriments Salinity tolerance 1 halotolerant 3 halophyle Light Value L 1 very shady 2 shady 3 lighted areas 4 luminous 5 highly luminous Temperature factor T 1 alpine to nival stages (from the treeline to the snowline) 1+ suprasubalpine and upper subalpine levels (pine and larch forests) 2 subalpine level (coniferous forests without beeches up to the upper limit of spruces) 2+ lower subalpine and upper mountain stages 3 mountain level (beech and silver fir forests, in the central Alps Scots pine forests) 3+ lower mountain and upper hill levels 4 hill level (mixed deciduous oak forests) 4+ hot places, hill level 5 very hot places, hill level (only in the hottest places, typical of southern Europe) Continentality K 1 Atlantic (high air humidity, very low temperature variations, mild winters) 2 Sub-Atlantic (high air humidity, low temperature variations, relatively mild winters) 3 sub-Atlantic to subcontinental (average air humidity, moderately variable temperature, slightly low winter temperatures) 4 subcontinental (low air humidity, large temperature variations, rather cold winters) 5 continental (very low air humidity, very large temperature variations, cold winters)
Water dependency
| Rivers | 1 - Secondary habitat |
| Calm water | 2 - Essential habitat |
| Ground water | 0 - No link |
Nomenclature
Accepted Name (Checklist 2017)
Nitella flexilis (L.) C. Agardh
Vernacular name
Deutscher Name :
Biegsame GlanzleuchteralgeNom français :
--Nome italiano :
--Match with other reference books
| Relation | Nom | Book | No |
|---|
= The taxon corresponds to the accepted taxon (Checklist 2017)
< The taxon is included in the accepted taxon (Checklist 2017)
> The taxon includes (among others) also the accepted taxon (Checklist 2017)
< The taxon is included in the accepted taxon (Checklist 2017)
> The taxon includes (among others) also the accepted taxon (Checklist 2017)
Status
Native status
-IUCN list of endangered species (© Walter & Gillett 1997) : No
Status on national Red List 2012
IUCN status:
Critically endangered
Additional information
IUCN criteria: --
Status on regional Red List 2019
| Biogregraphic regions | Status | IUCN criteria |
|---|
- Legend
EX Extinct RE Regionally Extinct CR(PE) Critically Endangered, Probably Extinct CR Critically Endangered EN Endangered VU Vulnerable NT Near Threatened LC Least Concern DD Data Deficient NE Not Evaluated NA Not Applicable
National Priority Species List Status
| National Priority | 2 - high national priority |
| Need to take action | 2 - |
| International responsibility | 1 - weak |
| Need to monitor populations | 2 - |
Protection status
| International (Bern Convention) | No | |
| TI | total protection | (23.01.2013) |
| Switzerland | -- |
- Disclaimer
InfoFlora compiles information on protected species as accurately as possible, taking it from the respective cantonal laws. In some cases, however, it was not possible to use the plant names as listed in the original text, but an interpretation of their taxonomy or nomenclature was necessary. The exact meaning of the categories „completely protected“ and „partially protected“ differs among the cantons.
InfoFlora cannot guarantee that the information on the protection status is correct and complete. In case of doubts, we recommend to look up the texts of the respective cantonal law.
Status by sector of activity
| Agriculture-related environmental objectives : | more informations | |
| Forest management environmental objectives : | more informations |
Conservation
Threats and measures
Habitatverlust
Neue Stillgewässer an altbekannten Standorten anlegen.
Weiher in der Nähe aktueller Vorkommen anlegen, um den Fortbestand der Art zu sichern.
Hohe Wassertemperaturen
Bestände der Art vor hohen Wassertemperaturen schützen, indem Bäume oder Gebüsche zur Beschattung gepflanzt oder unweit davon leicht beschattete Weiher angelegt werden.
Mangel an Dynamik in aquatischen Lebensräumen
Neue Tümpel und Weiher mit verschiedenen Wassertiefen anlegen, die periodisch ganz oder teilweise trockenfallen (Gewisse Bereiche fallen dann jeden Sommer trocken, während tiefere Abschnitte nur in wärmeren Jahren mit weniger Niederschlag austrocknen).
Gewässereutrophierung
Den Phosphor- und Stickstoffgehalt des Wassers auf oligo- bis mesotrophem Niveau halten. Mit den zur Verfügung stehenden Instrumenten der Landwirtschaftspolitik, extensive Bewirtschaftungen im Einzugsgebiet sowie in unmittelbarer Nähe des Gewässers fördern.
Wissenslücken
Mehr Wissen über die Ökologie der Art in Erfahrung bringen, durch Beobachtungen bekannter Vorkommen.
Kleingewässer, aber auch Wassergräben, Kanäle und Bäche nach der Art verstärkt absuchen (überwachen), vor allem neu geschaffene, um neue Vorkommen in der Schweiz entdecken zu können.