Lysichiton americanus Hultén & H. St. John

English American skunk-cabbage, swamp lantern ISEIA: B0 – Alert List. IAS of EU concern (2016)
Lëtzebuergesch n/a EASIN | CABI
Français Lysichiton américain Wikipedia: Wikipedia - English - American skunk-cabbage Wikipedia - Français - Lysichiton américain Wikipedia - Deutsch - Amerikanischer Stinktierkohl Wikipedia - Nederlands - Moeraslantaarn
Deutsch Amerikanischer Stinktierkohl Wikispecies: Wikispecies - Lysichiton americanus
Nederlands Moeraslantaarn Back to the list of neophytes

Importance and distribution in Luxembourg

The species has not yet been observed in Luxembourg.

Lysichiton americanus grows in the transition zone of terrestrial, semi-aquatic and aquatic habitats like swamps, fens, wet meadows, marshy and alluvial woodlands, along streams, riverbanks, lakesides and ponds. It has no specific site condition requirements except the presence of saturated organic soils. It is often found in protected semi-natural habitats. Lysichiton reproduces almost exclusively by seeds, which may be dispersed downstream along waterways. However, spread by natural means is not frequent and rather limited. L. americanus has become established locally in swamp forests and associated wetlands in the EPPO region (resulting most of the time from plantation in the site). After some years, its huge leaves build a dense layer excluding light from native species which are usually not adapted to extreme darkness. It can displace and cause local extinction of rare species of mosses and vascular plants (Carex echinata,Viola palustris, and orchids). (Source: http://ias.biodiversity.be/species/show/12).

Risk assessment

ISEIA protocol: A0 (2+3+3+2) = Alert List. First assessed 24 January 2019 by Manou Pfeiffenschneider and Christian Ries.

Bibliography concerning Luxembourg

n/a

 Last updated on Thursday, January 24, 2019.

Ludwigia peploides (Kunth.) P.H. Raven

English Creeping water primrose ISEIA: A0 – Alert List. IAS of EU concern (2016)
Lëtzebuergesch n/a EASIN | CABI
Français Jussie rampante Wikipedia: Wikipedia - English - Creeping water primrose Wikipedia - Français - Jussie rampante Wikipedia - Nederlands - Kleine Waterteunisbloem
Deutsch Kriechendes Heusenkraut Wikispecies: Wikispecies - Ludwigia_peploides
Nederlands Kleine waterteunisbloem Back to the list of neophytes

Importance and distribution in Luxembourg

The species has not yet been observed in Luxembourg.

L. peploides is an amphibious plant living in ponds, lakes, ditches, channels and slow-running rivers as well as in humid meadows. It shows a high tolerance to different water levels. Its growth is favoured by water eutrophication but the plant is able to develop in oligotrophic environments. Both clonal and sexual reproductions contribute to plant spread across watersheds. Water primroses are highly detrimental to the environment in Western Europe. They quickly develop and make very thick monospecific floating carpets at the surface of water bodies. They alter the physico-chemical quality of water (reduction of light and dissolved oxygen) and possess an allelopathic activity that influences the water quality throughout the year and reduces the germination and survival rates of other plant species. They outcompete most of native water plants and create an anoxic environment detrimental to many plant and animal species. In addition, they modify water flow and cause wetland drying. (Source: http://ias.biodiversity.be/species/show/12).

Risk assessment

ISEIA protocol: A0 (3+3+2+3) = Alert List. First assessed 24 January 2019 by Manou Pfeiffenschneider and Christian Ries.

Bibliography concerning Luxembourg

n/a

 Last updated on Thursday, January 24, 2019.

Ludwigia grandiflora (Michx.) Greuter & Burdet

English Water primrose ISEIA: A0 – Alert List. IAS of EU concern (2016)
Lëtzebuergesch n/a EASIN | CABI
Français Jussie à grandes fleurs, Grande J. Wikipedia: Wikipedia - Français - Jussie à grandes fleurs Wikipedia - Deutsch - Großblütige Heusenkraut Wikipedia - Nederlands - Waterteunisbloem
Deutsch Großblütiges Heusenkraut Wikispecies: Wikispecies - Ludwigia_grandiflora
Nederlands Waterteunisbloem Back to the list of neophytes

Importance and distribution in Luxembourg

The species has not yet been observed in Luxembourg.

L. grandiflora is an amphibious species living in ponds, lakes, ditches, channels and slow-running rivers as well as in humid meadows. It shows a high tolerance to different water levels. Its growth is favoured by water eutrophication but the plant is able to develop in oligotrophic environments. Invasive spread across watersheds is almost exclusively clonal and brought about by the dispersal of vegetative propagules by waterflow. Water primroses are highly detrimental to the environment in Western Europe. They quickly develop and make very thick monospecific floating carpets at the surface of water bodies. They alter the physico-chemical quality of water (reduction of light and dissolved oxygen) and possess an allelopathic activity that influences the water quality throughout the year and reduces the germination and survival rates of other plant species. They outcompete most of native water plants and create an anoxic environment detrimental to many plant and animal species. In addition, they modify water flow and cause wetland drying. (Source: http://ias.biodiversity.be/species/show/11).

Risk assessment

ISEIA protocol: A0 (3+3+2+3) = Alert List. First assessed 24 January 2019 by Manou Pfeiffenschneider and Christian Ries.

Bibliography concerning Luxembourg

n/a

 Last updated on Thursday, January 24, 2019.

Aedes japonicus (Theobald, 1901)

English East Asian bush or rock pool mosquito ISEIA: C2
Lëtzebuergesch Japanesch Hecke-Moustique EASIN
Français n/a Wikipedia: Wikipedia - English - East Asian bush mosquito Wikipedia - Français Wikipedia - Deutsch - Asiatische Buschmücke Wikipedia - Nederlands
Deutsch Asiatische Buschmücke Wikispecies: n/a
Nederlands Aziatische bosmug Back to the list of invertebrates

Advice for the population

Web pages

Flyers

Importance and distribution in Luxembourg

Distribution map of Aedes japonicus (Theobald, 1901) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

3 female imago of Aedes japonicus (Syn.: Hulecoeteomyia japonica) have been captured on 4th July 2018 in Stolzembourg, Oesling. Field prospection on 1st and 2nd August showed the East Asian bush mosquito is also present in Bivels, Vianden, Wahlhausen and Gemünd (D). Further field studies in August and October 2018 revealed the presence of a large population of Aedes japonicus, detected in 16 sites distributed over 12 localities, 12 municipalities, 7 cantons and 3 districts. The colonised area can be estimated to date to cover at least 550 km2, located in the east of the Grand Duchy, from the valley of the Our in the north to Ernster in the south, and as far as Kautenbach and Ettelbruck in the west. The mosquito was not detected in neighbouring Belgium (Clairefontaine and Ouren) but in Germany, where it has been present for several years in Rhineland-Palatinate and from where it has certainly migrated to the Grand Duchy. We also detected it in the French border town of Contz-les-Bains, which suggests that the mosquito is probably present, although not detected to date, in the region bordering the Moselle, from Manternach to the French border (Schaffner 2018).

Distribution of the mosquito Aedes japonicus known as of 10 October 2018, for Luxembourg and the neighbouring regions of Germany, Belgium and France. Purple: proven presence; Purple with star: data from the German surveillance network; Green: undetected presence. Source: Schaffner 2018.

The species is established in the Province of Namur (Belgium), in North Rhine-Westphalia, Rhineland-Palatinate and Hesse (Germany), and in Bas-Rhin, Haut-Rhin, Vosges (France).

Aedes japonicus is a mosquito species originally native to Japan, Korea and southern China, and is important for humans as a potential vector of pathogens such as the West Nile virus and of various types of encephalitis viruses.

Risk assessment

ISEIA protocol: C2 (3+2+2+1), assessment updated on 13 August 2018 by M. Pfeiffenschneider & C. Ries. Former assessment under it’s synonym Hulecoeteomyia japonica: C0 (2+1+1+1) (Ries et al. 2017: 68).

Initial importations and spread in Europe

Source: https://ecdc.europa.eu/en/disease-vectors/facts/mosquito-factsheets/aedes-japonicus [accessed July 31 2018]

Aedes japonicus was first reported in Europe in 2000 when it was detected in Normandy (Orne) in northern France, where it was later eliminated. It was then reported in 2002 in Belgium at a tyre depot and presence as adults and larvae was confirmed in 2007 and 2008. It was most likely introduced through the trade of tyres and the population was thought to be established at the company site but does not appear to be spreading. It was detected in Switzerland in 2008 following reports of a biting nuisance and subsequent surveys revealed a 1,400 km colonised zone including an area in Germany. This was the first detection of invasive mosquitospreading in central Europe. No obvious route of introduction was identified in this study but it is suspected that the species has been present here for some time. Adult Ae. japonicus were then found in Southern Germany during 2011, following intensified surveillance. This resulted in surveillance expanding to cover the entire federal state of Baden-Württemberg where a reduction in the colonised areas compared to 2010 was reported (possibly due to a dry spring during 2011). However, a large, newly infested area was also reported from the city of Stuttgart to the Swabian Mountains. Entomological surveys carried out during 2012 in North Rhine-Westphalia also revealed the presence of an established population in the west of the country. Aedes japonicus were then reported further north in southern Lower Saxony and northeastern North Rhine-Westphalia during spring 2013. It was detected in 2012 and 2013 in Lelystad, the Netherlands.

Source: European Centre for Disease Prevention and Control: The map shows the current known distribution of Aedes japonicus in Europe at at ‘regional’ administrative level (NUTS3), as of June 2018.

Possible future expansion 

It is suggested that Aedes japonicus may expand beyond its current geographical distribution but there is still a lack of information available on this invasive mosquito species.

References

  • Ministère de la Santé, 2018. Première apparition du moustique japonais « Aedes japonicus » au Luxembourg. Communiqué de presse du 1er août 2018. [PDF 40 KB]
  • Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]
  • Schaffner, F., 2018. Le moustique Aedes japonicus au Luxembourg : État des connaissances au 10 octobre 2018. Rapport de mission pour la Direction de la santé, grand-duché de Luxembourg. 14 p. [PDF 1.4 MB]
  • Schaffner, F. & C. Ries, [submitted, 2019]. First evidence and distribution of the invasive alien mosquito Aedes japonicus (Theobald, 1901) in Luxembourg. Bulletin de la Société des naturalistes luxembourgeois.

 Last updated on Thursday, January 31, 2019.

Parthenocissus quinquefolia (L.) Planch.

English Five-leaved Virginia creeper ISEIA: B1 – Watch List
Lëtzebuergesch Fënnefbliedrege Wëlle Wäin EASIN
Français Vigne-vierge à cinq folioles Wikipedia: Wikipedia - English - Five-leaved Virginia creeper Wikipedia - Français - Vigne-vierge à cinq folioles Wikipedia - Deutsch - Selbstkletternde Jungfernrebe Wikipedia - Nederlands - Vijfbladige wingerd
Deutsch Selbstkletternde Jungfernrebe Wikispecies: Wikispecies - Parthenocissus quinquefolia
Nederlands Vijfbladige wingerd Back to the list of neophytes

Importance and distribution in Luxembourg

Distribution map of Parthenocissus quinquefolia (L.) Planch. in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

The Recorder database shows 7 observations in Luxembourg dating from 1958 to 2016 (18/01/2018).

General note on Parthenocissus spp.

Originally observed in man-made habitats, these popular garden plants can be found increasingly often in natural habitats like coastal dunes, riparian habitats and wood margins (Parthenocissus inserta) or rock outcrops (Parthenocissus quinquefolia). They usually thrive on nutrient-rich soils. Seeds are dispersed over long distances by birds. With its dense growth, the plant may cover, outcompete and kill native vegetation. Source: http://ias.biodiversity.be.

Risk assessment

ISEIA protocol: B1 (3+3+2+2), reassessed on 10 July 2018 by C. Ries and M. Pfeiffenschneider. Originally assessed together with Parthenocissus inserta as Parthenocissus spp. C1 (1+1+1+1) (Ries et al. 2013: 18).

Bibliography concerning Luxembourg

  • Ries, C., Y. Krippel, M. Pfeiffenschneider & S. Schneider, 2013. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of non-native vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 114: 15-21. [PDF 652 KB]

 Last updated on Wednesday, July 11, 2018.

Parthenocissus inserta (Kerner) Fritsch

English False Virginia creeper ISEIA: B1 – Watch List
Lëtzebuergesch Gewéinleche Wëlle Wäin EASIN
Français Vigne vierge commune Wikipedia: Wikipedia - English - False Virginia creeper Wikipedia - Français - Vigne vierge commune Wikipedia - Deutsch - Wilder Wein Wikipedia - Nederlands - Valse wingerd
Deutsch Gewöhnliche Jungfernrebe Wikispecies: Wikispecies - Parthenocissus inserta
Nederlands Valse wingerd Back to the list of neophytes

Importance and distribution in Luxembourg

Distribution map of Parthenocissus inserta (Kerner) Fritsch in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

The Recorder database shows 4 observations in Luxembourg since the 19th century to 2016 (10/07/2018).

General note on Parthenocissus spp.

Originally observed in man-made habitats, these popular garden plants can be found increasingly often in natural habitats like coastal dunes, riparian habitats and wood margins (Parthenocissus inserta) or rock outcrops (Parthenocissus quinquefolia). They usually thrive on nutrient-rich soils. Seeds are dispersed over long distances by birds. With its dense growth, the plant may cover, outcompete and kill native vegetation. Source: http://ias.biodiversity.be.

Risk assessment

ISEIA protocol: B1 (3+3+2+2), reassessed on 10 July 2018 by C. Ries and M. Pfeiffenschneider. Originally assessed together with Parthenocissus quinquefolia as Parthenocissus spp. C1 (1+1+1+1) (Ries et al. 2013: 18).

Bibliography concerning Luxembourg

  • Ries, C., Y. Krippel, M. Pfeiffenschneider & S. Schneider, 2013. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of non-native vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 114: 15-21. [PDF 652 KB]

 Last updated on Wednesday, July 11, 2018.

Orconectes immunis (Hagen, 1870)

English Papershell crayfish
ISEIA: A0 – Alert List
Lëtzebuergesch n/a EASIN
Français Ecrevisse calicot Wikipedia: Wikipedia - English - Orconectes immunis  Wikipedia - Français - Ecrevisse calicot Wikipedia - Deutsch - Kalikokrebs Nederlands - Calicotrivierkreeft
Deutsch Kalikokrebs Wikispecies: n/a (2017)
Nederlands Calicotrivierkreeft Back to the list of invertebrates

Importance and distribution in Luxembourg

The species has not yet been documented in Luxembourg.

Risk assessment

ISEIA protocol: A0 (3+3+3+2) = Alert List (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Last updated on Tuesday, April 10, 2018.

Dicranopalpus ramosus (Simon, 1909)

English n/a ISEIA: C2
Lëtzebuergesch Streckfouss EASIN
Français n/a Wikipedia: Wikipedia - English - Dicranopalpus ramosus  Wikipedia - Français - Dicranopalpus ramosus Wikipedia - Deutsch - Nederlands - Strekpoot
Deutsch Streckfuß Wikispecies: n/a (2017)
Nederlands Strekpoot Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Dicranopalpus ramosus (Simon, 1909) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

Five occurrences of the species in Luxembourg are documented in the Recorder database, the first dating from 2007. In the Gutland meanwhile widespread, in the Ösling probably still largely missing (Muster & Meyer 2014: 38-39).

Originally the species was found in Morocco. Later it spread into Europe, with first reports in Portugal (1948), where it spread to Spain (1965) and France (1969). The Netherlands were reached in 1992. Since 2004 it is known to occur in Germany. As early as 1957, it was reported in Bournemouth, southern England, from where it spread all over the island, reaching Scotland in 2000. In 2010, one occurrence in Denmark was documented. 1

Risk assessment

ISEIA protocol: C2 (2+2+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Muster, C. & M. Meyer, 2014. Verbreitungsatlas der Weberknechte des Großherzogtums Luxemburg. Ferrantia 70, Musée national d’histoire naturelle, Luxembourg, 112 p.
  • Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Last updated on Friday, July 13, 2018.

Brigittea civica (Lucas, 1850)

English n/a ISEIA: C3
Lëtzebuergesch n/a EASIN
Français n/a Wikipedia: Wikipedia - English - Brigittea civica Nederlands - Zuiders kaardertje
Deutsch  n/a Wikispecies: n/a (2017)
Nederlands Zuiders kaardertje Back to the list of invertebrates

Importance and distribution in Luxembourg

Distribution map of Brigittea civica (Lucas, 1850) in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

29 occurrences of the species have been documented in Luxembourg in the Recorder database under it’s synonym Dictyna civica (Status: July 2018). The species is estimated to be very common.

Risk assessment

ISEIA protocol: C3 (2+1+2+1) (Ries et al. 2017: 68).

Bibliography concerning Luxembourg

  • Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Last updated on Tuesday, July 10, 2018.

Impatiens balfourii Hook.f.

English Balfour’s touch-me-not ISEIA: B1 – Watch List
Lëtzebuergesch Balfour-Sprangkraut EASIN
Français Impatiente, balsamine de Balfour Wikipedia:   Wikipedia - English - Himalayan Balsam Wikipedia - Français - Impatiente de l'Inde Wikipedia - Deutsch - Indisches Springkraut Wikipedia - Nederlands - Reuzenbalsemien
Deutsch Balfour’s Springkraut Wikispecies: Wikispecies - Impatiens glandulifera
Nederlands Tweekleurig springzaad Back to the list of neophytes

Importance and distribution in Luxembourg

Impatiens balfourii Hook. f. (Kashmir balsam) has his origins in the West-Himalayan region (Grey-Wilson 1983).

This species of the Balsaminaceae family was simultaneously introduced in 1901 at the Jardin des plantes de Montpellier and the Botanical Garden of Edinburgh (Adamowski 2009). It is cultivated in Europe as an ornamental plant since the beginning of the 20th century; in Luxembourg it is grown for example in the Jardin méditerranéen in Schwebsange. Nowadays the species is naturalised in major parts of South and Central-Europe (Adamowski 2009, Schmitz & Dericks 2010).

Impatiens balfourii was first observed in Luxembourg, in the wild, on 5th August 2016, on the edge of the Kirchberg plateau by Roland Proess. It is at present just considered to be subspontaneous, it may however have the potential of getting naturalized in Luxembourg due to climate change (Krippel & Proess 2017).

Two other invasive alien balsam species occur in Luxembourg: the Himalayan balsam (Impatiens glandulifera Royle), one of the most common and widespread invasive neophytes in Luxembourg, and the small balsam (Impatiens parviflora DC.), which is widespread in forest ecosystems across Luxembourg.

Risk assessment

ISEIA Protocol: B1 (3+3+3+1) = Watch List. First assessed 16 February 2017 by Yves Krippel and Christian Ries.

Bibliography concerning Luxembourg

  • Krippel, Y. & R. Proess, 2017. Impatiens balfourii Hook. f. (Balsaminaceae), nouvelle espèce subspontanée au Luxembourg ?! Bull. Soc. Nat. luxemb. 119: 55-61 [PDF].

Bibliography concerning neighbouring regions

  • Adamowski, W., 2009. Impatiens balfourii as an emerging invader in Europe. Neobiota 8: 183-194.
  • Grey-Wilson, C., 1983. A survey of the genus Impatiens in cultivation. The Plantsman 5(2): 86-102.
  • Schmitz, U. & G. Dericks, 2010. Spread of alien invasive Impatiens balfourii in Europe and its temperature, light and soil moisture demands. Flora 205: 772-776.

 Last updated on Tuesday, May 29, 2018.