Author: Dr. Christian Ries

Cameraria ohridella Deschka & Dimić, 1986

Posted onAuthorDr. Christian Ries

English Horse-chestnut leaf miner Status LU: established. 1st record: 2003.
Lëtzebuergesch Päerdskäschtebam-Minnematt Status Eur.: established.
Français Mineuse du marronnier RA: ISEIA: C3. Harmonia+: n/a.
Deutsch Rosskastanienminiermotte Wikipedia: Wikipedia - English - Horse-chestnut leaf miner Wikipedia - Français - Mineuse du marronnier Wikipedia - Deutsch - Rosskastanienminiermotte Nederlands | Wikispecies: Wikispecies - Cameraria ohridella |
Nederlands Paardenkastanjemineermot Back to the list of invertebrates

Brief description

Cameraria ohridella dorsalCameraria ohridella Deschka & Dimić, 1986 is a leaf-mining moth of the family Gracillariidae. The horse-chestnut leaf miner was first observed in North Macedonia in 1984, and was described as a new species in 1986. Its larvae are leaf miners on the common horse-chestnut (Aesculus hippocastanum). The horse-chestnut leafminer was first collected and inadvertently pressed in herbarium sheets by the botanist Theodor von Heldreich in central Greece in 1879. Cameraria ohridella causes significant damage, mainly late summer browning, to the appearance of horse-chestnut trees. Despite the poor appearance of these infested trees, there is no evidence that damage by the moth leads to tree death. Although horse-chestnut occurs naturally mostly above the 700–1000 m. contours the moth does well in well-watered places such as parks in cities and at low elevation but not well in the hotter parts of Europe e.g. Spain. Probably aided greatly by vehicular transport, the moth has attained a very rapid dispersal rate across Europe of 60 km per year (Wikipedia contributors 2020).

Status and distribution in Luxembourg

Records of Cameraria ohridella Deschka & Dimić, 1986 in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-11-27.

Nico Schneider observed and documented occurrences of Cameraria ohridella Deschka & Dimić, 1986 in 2003 in Luxembourg-Limpertsberg (Schneider 2003).

15 records of the horse-chestnut leaf miner are listed in the mdata.mnhn.lu portal ranging from 2007 to 2017 (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

C3 (3+1+1+1) (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

  • CABI, 2019. Cameraria ohridella. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-13]
  • MNHNL, iNaturalist & GBIF, 2020. Cameraria ohridella in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2020-03-13]
  • Schneider, N., 2003. Auf Spurensuche. 21. Miniermotten. Regulus 9/03: 22.
  • 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]
  • Wikipedia contributors, 2020.’Horse-chestnut leaf miner’, Wikipedia, The Free Encyclopedia, 21 January 2020, 16:30 UTC, <https://en.wikipedia.org/w/index.php?title=Horse-chestnut_leaf_miner&oldid=936884582> [accessed 13 March 2020]

 Page content last updated on 2020-04-28.

Anoplophora glabripennis (Motschulsky, 1853)

Posted onAuthorDr. Christian Ries

English Asian long-horn beetle Status LU: absent.
Lëtzebuergesch Asiatesche Bockkiewerlek Status Eur.: introduced.
Français Longicorne asiatique RA: ISEIA: B0, Alert List. Harmonia+: n/a.
Deutsch Asiatischer Laubholzkäfer Wikipedia: Wikipedia - English - Asian long-horned beetle Wikipedia - Français - Longicorne asiatique Wikipedia - Deutsch - Asiatischer Laubholzbockkäfer Nederlands | Wikispecies: Wikispecies | CABI
Nederlands Loofhoutboktor Back to the list of invertebrates

Brief description

File:Aziatische-boktor.jpgAnoplophora glabripennis (Motschulsky, 1853) is native to eastern China, and Korea. The Asian long-horned beetle has now been accidentally introduced into the United States, where it was first discovered in 1996, as well as Canada, and several countries in Europe, including Austria, France, Germany, Italy and UK. This beetle is believed to have been spread from Asia in solid wood packaging material. Due to high tree mortality caused by larval feeding outside its native range, A. glabripennis can change both forest and urban ecosystems. In the United States, it can potentially destroy 30.3% of urban trees and cause $669 billion in economic loss. Early detection is used to manage infestations before they can spread (Wikipedia contributors 2020).

Status and distribution in Luxembourg

There is no documented observation of Anoplophora glabripennis (Motschulsky, 1853) in Luxembourg yet (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

B0 (3+3+2+1) = Alert List (Ries et al. 2017: 68).

Harmonia+ protocol

Overall risk score 0,10 = (Overall Invasion score 0,24 x Overall Impact score 0,50) (evaluated by Jennifer Cross, Svenja Christian and Roland Proess).

0,24Invasion
0,50Impact
0,10Risk

Worldwide distribution

Bibliography

  • CABI, 2019. Anoplophora glabripennis (Motschulsky, 1853). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-04]
  • MNHNL, iNaturalist & GBIF, 2020. Anoplophora glabripennis (Motschulsky, 1853) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2020-03-04]
  • 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]
  • Wikipedia contributors, 2020. Asian long-horned beetle, Wikipedia, The Free Encyclopedia, 29 November 2019, 18:33 UTC, <https://en.wikipedia.org/w/index.php?title=Asian_long-horned_beetle&oldid=928506868> [accessed 2020-03-04]

 Page content last updated on 2024-03-06.

Anoplophora chinensis (Forster, 1771)

Posted onAuthorDr. Christian Ries

English Citrus longhorn beetle Status LU: absent.
Lëtzebuergesch Zitrus-Bockkiewerlek Status Eur.: established.
Français Capricorne à points blancs RA: ISEIA: B0, Alert List. Harmonia+: n/a
Deutsch Zitrusbockkäfer Wikipedia: Wikipedia - English - Citrus long-horned beetle Wikipedia - Français - Capricorne asiatique des agrumes Wikipedia - Deutsch - Zitrusbockkäfer | Wikispecies: Wikispecies - Anoplophora chinensis | CABI
Nederlands  Oost-Aziatische boktor Back to the list of invertebrates

Brief description

Anoplophora malasiacaAnoplophora chinensis (Forster, 1771) originates from Eastern Asia where it seriously damages forest and agricultural plant hosts. Since the the citrus longhorn beetle is listed in annex V of the Council Directive 2000/29/EC of 8 May 2000 on protective measures against the introduction into the Community of organisms harmful to plants or plant products and against their spread within the Community, the competent administration informs about the species and the consequences of the listing (Anonymous [undated]).

Status and distribution in Luxembourg

There is no documented observation of Anoplophora chinensis (Forster, 1771) in Luxembourg yet (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

B0 (3+3+2+1) = Alert List (Ries et al. 2017: 68).

Harmonia+ protocol

Overall risk score 0,10 = (Overall Invasion score 0,24 x Overall Impact score 0,50) (evaluated by Jennifer Cross, Svenja Christian and Roland Proess).

0,24Invasion
0,50Impact
0,10Risk

Worldwide distribution

Bibliography

  • Anonymous, [undated]. Der Citrusbockkäfer Anoplophora chinensis. Service de la protection des végétaux, Administration des services techniques de l’agriculture. 4 p.
  • CABI, 2019. Anoplophora chinensis (Forster, 1771). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-04]
  • MNHNL, iNaturalist & GBIF, 2020. Anoplophora chinensis (Forster, 1771) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2020-03-04]
  • 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]

 Page content last updated on 2024-03-06.

Aedes albopictus (Skuse, 1895)

Posted onAuthorDr. Christian Ries

English Asian tiger mosquito Status LU: introduced. 1st record: 2022.
Lëtzebuergesch Wäissgezeechent Iergermustik Status Eur.: established. 1st record: 1979.
Français Moustique tigre asiatique RA: ISEIA: C1. Harmonia+: 0,27.
Deutsch Asiatische Tigermücke Wikipedia: Wikipedia - English - Tigermosquito Wikipedia - Français - moustique-tigre Wikipedia - Deutsch - Asiatische Tigermücke | Wikispecies: Wikispecies - Aedes albopictus | CABI
Nederlands Aziatische tijgermug Back to the list of invertebrates

Brief description

CDC-Gathany-Aedes-albopictus-2Aedes albopictus (Skuse, 1895) is a mosquito native to the tropical and subtropical areas of Southeast Asia; however, in the past few decades, this species has spread to many countries through the transport of goods and international travel. It is characterized by the white bands on its legs and body. The first establishment in Europe occurred in 1979 in Albania (Adhami and Reiter 1998), next in 1990 in Genoa, Italy (Sabatini et al. 1990).

This mosquito has become a significant pest in many communities because it closely associates with humans (rather than living in wetlands), and typically flies and feeds in the daytime in addition to at dusk and dawn. The insect is called a tiger mosquito for its striped appearance, which resembles that of the tiger. Ae. albopictus is an epidemiologically important vector for the transmission of many viral pathogens, including the yellow fever virus, dengue fever, and Chikungunya fever, as well as several filarial nematodes such as Dirofilaria immitis. Aedes albopictus is capable of hosting the Zika virus and is considered a potential vector for Zika transmission among humans (Wikipedia contributors 2020).

DSCN0562

Potential breeding site for the Asian tiger mosquito.

Invasions of the Asian tiger mosquito into new areas of its potential range are often initiated through the transportation of eggs via the international trade in used tires (due to the rainwater retained in the tires when stored outside).

Advice for the population

Please refer to the Internet page https://mosquitoes.lu/dealing-with-mosquitoes/ for detailed information in 5 languages (Lëtzebuergesch Français Deutsch Portugues English) on how to deal with mosquitoes near your home.

Status and distribution in Luxembourg

On on 2022-09-03, the Luxembourg Ministry of Health informs that a population of the tiger mosquito “Aedes albopictus” has been detected at two locations in the territory of the Commune of Roeser.

On on 2023-07-31, the Luxembourg Ministry of Health informs that eggs of the tiger mosquito “Aedes albopictus” have been detected near Capellen (Municipality of Mamer) in the week of 17-23 July 2023. This is the second detection of the invasive Asian tiger mosquito Aedes albopictus in Luxembourg.

Until September 2022 there was no documented occurrence of Aedes albopictus (Skuse, 1895) in Luxembourg yet (MNHNL, iNaturalist & GBIF 2021). The species has established itself in Alsace (France) and in Oestrich-Winkel near Mainz (Germany), about 150 km from the borders of Luxembourg. The species is regularly introduced into our neighbouring regions (Belgium and Holland, Lorraine, Rhineland-Palatinate) but is not yet established there thanks to monitoring and treatment of sites. An egg clutch was observed in August 2018 on a motorway rest area near Arlon (Belgium). Immediate site treatment prevented the development of a local population.

As of 2021, we estimated the arrival of the species in Luxembourg to be imminent.

The map shows the current known distribution of Aedes albopictus in Europe at at ‘regional’ administrative level (NUTS3), as of March 2021 (ECDC & EFSA, 2021).

From May to November, 2020, five ovitraps have been placed on the motorway service areas “Aire de Berchem (Est)” and “Aire de Capellen (Nord)” in order to survey the invasive Asian tiger mosquito Aedes albopictus. Both highways A3 and A6 are considered to be putative mosquito hitchhikers’ entry pathways into Luxembourg. The traps have been monitored over 23 weeks producing a total of 80 data. No mosquito eggs could be found in any sample. This surveillance was carried out as part of the international AIMSurv2020 project in the frame of the EU COST action CA17108 “Aedes Invasive Mosquitoes” (Ries & Schaffner 2020).

In 2016, the National Natural History Museum carried out a survey on mosquito species in Luxembourg. In July and August, ten mosquito traps were installed in different locations throughout the country. The BG-Sentinel 2 traps from the company Biogents were run for 24 hours once every week until the end of October. The catch was preserved in deep freezers and transferred to the Museum for identification. The catch was identified by mosquito specialist Dr. Francis Schaffner, University of Zurich. No invasive species were found among the caught specimens (Ries et al. 2019).

A public petition (n°1071) for a public health policy that effectively combats the implantation of tiger mosquitoes, vectors of diseases, in Luxembourg, was introduced on 10th July 2018 and was open for signatures until 19th September 2018 (Sarno Bomfim 2018).

Risk assessment

ISEIA protocol

C1 (2+3+1+1), reassessed on 3rd September 2022 by C. Ries. Originally assessed C0 (2+3+1+1) (Ries et al. 2017: 68).

Harmonia+ protocol

Overall risk score 0,27 = (Overall Invasion score 0,47 x Overall Impact score 0,58) (Schaffner & Ries 2019: 178).

0,47Invasion
0,58Impact
0,27Risk

Worldwide distribution

Bibliography

  • Adhami, J. & P. Reiter, 1998. Introduction and establishment of Aedes (Stegomyia) albopictus Skuse (Diptera: Culicidae) in Albania. Journal of the American Mosquito Control Association 14(3): 340–343.
  • Boukraa, S., Dekoninck, W., Versteirt, V., Schaffner, F., Coosemans, M., Haubruge, E., Francis, F., 2015. Updated checklist of the mosquitoes (Diptera: Culicidae) of Belgium. Journal of Vector Ecology, 40(2), 398-407. [doi: 10.1111/jvec.12180]
  • CABI, 2019. Aedes albopictus (Skuse, 1895). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-06]
  • ECDC & EFSA, 2021. European Centre for Disease Prevention and Control and European Food Safety Authority. Mosquito maps [internet]. Stockholm: ECDC; 2021. Available from: https://ecdc.europa.eu/en/disease-vectors/surveillance-and-disease-data/mosquito-maps
  • Ganser, J., 2020. Tigermücke im Anflug. Exotische Stechfliegen finden vermehrt den Weg nach Luxemburg. Das muss aber kein Grund zur Panik sein. Luxemburger Wort online 2020-09-21. URL: https://www.wort.lu/de/lokales/tigermuecke-im-anflug-5f68bdc4de135b9236d06c07
  • MNHNL, iNaturalist & GBIF, 2021. Aedes albopictus (Skuse, 1895) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2021-09-03]
  • 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]
  • Ries, C. & F. Schaffner, 2020. Surveillance of Aedes albopictus (Skuse, 1895) (Diptera, Culicidae) on two motorway service areas in Luxembourg in 2020. A project report, unpublished, 10 p. [PDF 1.1 MB]
  • Ries, C., S. Christian, M. Pfeiffenschneider, I.A. Giantsis & F. Schaffner, 2019. A survey of mosquito species (Diptera, Culicidae) in Luxembourg, 2016. Project report. Luxembourg: Musée national d’histoire naturelle. 7 pp. DOI: 10.13140/RG.2.2.22645.70884 [PDF 725 KB]
  • Sabatini, A., Rainieri V., Trovato G. & Coluzzi M., 1990. Aedes albopictus in Italia e possibile diffusione della specie nell’area mediterranea. Parassitologia 32(3): 301–304.
  • Sarno Bomfim, JA, 2018. Pétition publique n°1071 – Pour une politique de santé publique qui combatte effectivement l’implantation des moustiques tigres, vecteurs de maladies, au Luxembourg. URL: https://chd.lu/wps/portal/public/Accueil/TravailALaChambre/Petitions/RoleDesPetitions?action=doPetitionDetail&id=1274 [08/08/2018].
  • Schaffner, F. & C. Ries, 2019. First evidence and distribution of the invasive alien mosquito Aedes japonicus (Theobald, 1901) in Luxembourg. Bull. Soc. Nat. luxemb. 121: 169-183. [PDF 8,94 MB]
  • Théry, P., 2018. Le moustique-​​tigre pourrait bientôt arriver. L’essentiel en ligne du 17 mai 2018.
  • Wikipedia contributors, 2020. Aedes albopictus. Wikipedia, The Free Encyclopedia. URL: https://en.wikipedia.org/w/index.php?title=Aedes_albopictus&oldid=947251873 [accessed 2020-04-06]

 Page content last updated on 2023-07-31. Last proofread by Caroline Grounds on 2019-12-04.

Information leaflet on Vespa velutina

Posted onAuthorDr. Christian Ries

Vespa-velutina-flyer-1st-pageThe Asian predatory wasp (Vespa velutina), also known as the Asian Hornet or yellow-legged hornet, is a species of hornet indigenous to Southeast Asia, particularly the tropical regions, from Northern India, Pakistan, Afghanistan, Bhutan, China, Taiwan, Burma, Thailand, Laos, Vietnam, Malaysia, the Indo-Chinese peninsula and surrounding archipelagos.

As an invader in Europe, the hornet has appeared in France, Spain, Portugal. Further invasions are expected in various countries, including much of Europe.

As it is currently spreading from the south towards the north of France, we expect this wasp species to arrive in Luxembourg quite soon. This is why a leaflet was produced to enable people, and especially bee keepers, to identify the species and report its presence to the authorities.

→ Download the leaflet in PDF format (3,2 MB) (in German)

The leaflet has been produced by:

  • Ministère du Développement durable et des infrastructures
    • Département de l’Environnement
    • Administration de la nature et des forêts
  • Landesverband fir Beienzuucht
  • natur&ëmwelt
  • Musée national d’histoire naturelle, section d’écologie

 Page content last updated on 2020-03-30. Last proofread by Caroline Grounds on 2019-11-12.

Ceratophyllum submersum L., a new species for Luxembourg

Posted onAuthorDr. Christian Ries

MNHNL22119

Herbarium specimen MNHNL22119 at the Luxembourg National Museum of Natural History.

Ceratophyllum submersum L., commonly known as the soft hornwort, is a submerged, free-floating aquatic plant.

A very dense submerged population of the soft hornwort was discovered in a pond near Sanem on 21st June 2015 by German botanists Jörg Zoldan and Annette Steinbach-Zoldan during a survey for the nature conservation organisation SICONA-Ouest. The pond had been artificially created in 2010.

In November 2015 specimens from this population were deposited in the herbarium of the Luxembourg National Museum of Natural History.1

Ceratophyllum submersum, Flora Batava Vol. 19, 1893. Wikimedia Commons.

Ceratophyllum submersum, Flora Batava Vol. 19, 1893. Wikimedia Commons.

 Page content last updated on 2019-11-12. Last proofread by Caroline Grounds on 2019-11-12.

  1. Herbarium number MNHNL22119.[↩]

Unnoticed invasion of highways by halophyte Atriplex micrantha Ledeb.

Posted onAuthorDr. Christian Ries

The annual halophyte Atriplex micrantha Ledeb. (syn.: A. heterosperma Bunge) was first spotted in Hellange on 14 October 2007. By 2015, eight years later, it had colonised the median strip of huge parts of the Luxembourg highway network.

Read more in the post about Atriplex micrantha.

Atriplex_mi_Ries_small

Atriplex micrantha in the median strip of the A1 highway near Potaschberg, together with Senecio inaequidens. Curator Dr Christian Ries taking samples for the Museum herbarium. Photo: Dr Jim Meisch, 08.10.2015.

 Page content last updated on 2019-11-12. Last proofread by Caroline Grounds on 2019-11-12.

Atriplex micrantha Ledeb.

Posted onAuthorDr. Christian Ries

English n/a Status LU: established. 1st record: LU & ITW 2007.
Lëtzebuergesch Verschiddesomeg Méil Status Eur.: established. 1st record: FR 1906.
Français Arroche hétérosperme RA: ISEIA: C2. Harmonia+: 0,09
Deutsch Verschiedensamige Melde Wikipedia: Wikipedia - Deutsch - Verschiedensamige_Melde | Wikispecies: Wikispecies - Atriplex micrantha | CABI
Nederlands Grijze melde Back to the list of neophytes

Brief description

In its native Central Asia, Atriplex micrantha Ledeb. grows in steppes on saline soil, on the shores of water, or in the steppe and semi-desert zone. The species was introduced into large parts of Europe through trade and traffic. It was probably unintentionally introduced to Central Europe from Russia with grain supplies. Its first finds date from 1906 in Alsace (Rhine port). From there, it has spread out strongly along the waterways and traffic routes in recent decades (Wikipedia contributors 2019).

Status and distribution in Luxembourg

Records of Atriplex micrantha Ledeb. in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-11-27.

The annual halophyte Atriplex micrantha Ledeb. (syn.: A. heterosperma Bunge), once known as a very rare weed, began to naturalize in the flora territory in 2003. It spread rapidly along motorways, entering this territory apparently from the east and southwest (Germany and French Lorraine) (Lambinon & Verloove 2012: 168).

The species was first spotted in Hellange (Municipality of Frisange) on 14 October 2007, in a roundabout at a construction site on controlled-access highway E29 (Weicherding 2007, MNHNL 2000-, herbarium nr 22483).1

Since this single observation, the species managed to invade the Luxembourg highway network unnoticed, until a large population was spotted in summer 2015 in Potaschberg on the A1 highway between Trier and Luxembourg (Krippel & Colling 2016: 30).2

A field inspection in autumn 2015 revealed the invasive plant grows in the median strip of the A1 almost from the German border until Luxembourg city in huge very dense populations3, which confirms the Belgian point of view that “the species is still insufficiently known and widely neglected”.4 Atriplex micrantha, which was dominant in the middle part of the median strip, occurred together with the following species: Senecio inaequidens (dominant on the borders of the median strip), Mercurialis annua, Plantago intermedia, Prunus spinosa and Rosa rugosa.

On 13 October 2015 the species was spotted along the Jersey barrier of highway A6 between the Belgian border and Mamer5.

Since then the species managed to travel north along the A7 highway until Colmar-Berg and the B7 national highway until Ettelbruck (Krippel et al. 2018: 60). Since then, the expansion of the species is ongoing along these highways (Krippel et. al 2020: 33).

Atriplex micrantha is very salt-tolerant and benefits from the extensive use of de-icing salt along motorways during winter. It probably arrived in Luxembourg via its large secondary distribution area in Germany, namely the A1 from Trier. It is present in our neighbouring regions in Belgium (Verloove 2006), Lorraine (Georges 2006) and Saarland (Weicherding 2007).

Atriplex micrantha Herbier MNHNL 2007

Specimen of the MNHNL Herbarium (Acc Nr. MNHNL 2011/47)

Atriplex micrantha in the median strip of the A1 highway near Potaschberg. Photo: Jim Meisch, 08.10.2014.

Atriplex micrantha in the median strip of the A1 highway near Potaschberg. Photo: Jim Meisch, 08.10.2014.

Atriplex micrantha in the median strip of the A1 highway, together with Senecio inaequidens. Photo: Jim Meisch, 08.10.2014.

Atriplex micrantha in the median strip of the A1 highway near Potaschberg, together with Senecio inaequidens. Photo: Jim Meisch, 08.10.2014.

Risk assessment

ISEIA protocol

C2 (3+1+1+1). First assessed 16 February 2017 by Yves Krippel and Christian Ries.

Harmonia+ protocol

Overall risk score 0,09 = (Overall Invasion score 0,36 x Overall Impact score 0,25) (Ries et al. 2020).

0,36Invasion
0,25Impact
0,09Risk

Worldwide distribution

Bibliography

  • Georges, N., 2006. Note sur deux nouvelles espèces de Chenopodiaceae adventices en Lorraine : Bassia scoparia (L.) Voss et Atriplex micrantha Ledeb. Willemetia 48: 1-4. [PDF]
  • Krippel, Y. & G. Colling, 2016. Notes floristiques. Observations faites au Luxembourg (2014-2015). Bull. Soc. Nat. luxemb. 118 : 27-51.
  • Krippel, Y., T. Helminger & G. Colling, 2018. Notes floristiques. Observations faites au Luxembourg (2016-2017). Bull. Soc. Nat. luxemb. 120: 57-76. [PDF 265 KB]
  • Krippel, Y., T. Helminger & G. Colling, 2020. Notes floristiques. Observations faites au Luxembourg (2018-2019). Bulletin Soc. Nat. luxemb. 122 : 29-55. [PDF 132 KB]
  • Lambinon J. & F. Verloove, 2012. Nouvelle flore de la Belgique, du grand-duché de Luxembourg, du Nord de la France et des régions voisines. Sixième édition. Avec la collaboration de L. Delvosalle, B. Toussaint, D. Geerinck, I. Hoste, F. Van Rossum, B. Cornier, R. Schumacker, A. Vanderpoorten et H. Vannerom. Jardin botanique national de Belgique, Meise. CXXXIX + 1195 pp. ISBN : 9789072619884.
  • MNHNL, 2000-. Atriplex micrantha Ledeb. in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-02]
  • MNHNL, iNaturalist & GBIF, 2019. Atriplex micrantha Ledeb. in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-02]
  • Ries, C. & Y. Krippel, 2021. First records of 56 invasive alien vascular plants in Luxembourg. Bulletin de la Société des naturalistes luxembourgeois 123: 115-127. [PDF 241 KB]
  • Ries, C., Y. Krippel & M. Pfeiffenschneider, 2020. Risk assessment after the Harmonia+ protocol of invasive alien vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 122: 197-205. [PDF 132 KB]
  • Verloove, F., 2006. Atriplex micrantha, een nieuwe neofyt langs belangrijke verkeerswegen in België. Dumortiera 88: 15-20.
  • Weicherding, F.-J., 2007. Zur Verbreitung und Soziologie der adventiven Melden Atriplex micrantha Ledeb. (Verschiedensamige Melde), Atriplex sagittata Borkh. (Glanz-Melde) und Atriplex oblongifolia Waldst. et Kit. (Langblättrige Melde) (Chenopodiaceae) im Saarland und in angrenzenden Gebieten. Abh. Delattinia 33: 117-139.
  • Wikipedia contributors, 2019. Seite „Verschiedensamige Melde“ in Wikipedia, Die freie Enzyklopädie. Bearbeitungsstand: 1. Mai 2019, 23:11 UTC. URL: https://de.wikipedia.org/w/index.php?title=Verschiedensamige_Melde&oldid=188124273 [accessed 23 October 2019]

http://euromed.luomus.fi/euromed_map.php?taxon=544848&amp;size=medium

 Page content last updated on 2021-06-02. Last proofread by Caroline Grounds on 2019-11-13.

  1. Atriplex micrantha was first spotted in Luxembourg on 14 October 2007 by German Horticulturist Franz-Josef Weicherding, St. Ingbert/Saar. He offered a specimen to the herbarium of the MNHNL (Acc Nr. MNHNL 2011/47).[↩]
  2. Atriplex micrantha was spotted on 15 August 2015 by botanist Yves Krippel, scientific cooperator of the National Museum of Natural History.[↩]
  3. Inspection was carried out on 8 October 2015 by Dr Christian Ries and Dr Jim Meisch, curators at the National Museum of Natural History (WGS 84 6.41204, 49.68373). This “field trip” on the middle strip of a highway had to be coordinated with the highways unit of the department of civil engineering.[↩]
  4. Cf. Atriplex micrantha in the Manual of the Alien Plants of Belgium[↩]
  5. The plants were smaller (± 40-50 cm) than on the A1 (± 150 cm). Observation by Dr Christian Ries while driving car in the mentioned direction.[↩]

Aix galericulata (Linnaeus, 1758)

Posted onAuthorDr. Christian Ries

English Mandarin duck Status LU: casual.
Lëtzebuergesch Mandarinint1 Status Eur.: established.
Français Canard mandarin RA: ISEIA: C1. Harmonia+: 0,10
Deutsch Mandarinente Wikipedia: Wikipedia - English - Mandarin duck Wikipedia - Français - Canard mandarin Wikipedia - Deutsch - Mandarinente Wikipedia - Nederlands - Mandarijneend | Wikispecies: Wikispecies - Aix galericulata
Nederlands Mandarijneend Back to the list of vertebrates

Brief description

Aix galericulata - Zürich - Hafen Riesbach 2011-01-14 15-58-32Aix galericulata (Linnaeus, 1758) is native to Asia but has become established in several European countries. The species, which breeds mainly in tree holes, shows a preference for pools, lakes, rivers and marshes surrounded by deciduous forest. Potential competition with hole-nesting vertebrates has been suggested. The European population is resident and might be of some importance for the conservation of the species (Anselin et al. 2011).

Status and distribution in Luxembourg

Records of Aix galericulata L. in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-11-27.

Aix galericulata (Linnaeus, 1758) was first documented on 15 March 1998 by Claude Heidt on a dam of the Alzette in the Grund district of Luxembourg City (MNHNL 2000-).

Risk assessment

ISEIA protocol

C0 (3+1+1+1); the species is considered as not established (Ries et al. 2014: 199).

Harmonia+ protocol

Overall risk score 0,10 = (Overall Invasion score 0,51 x Overall Impact score 0,21) (evaluated by Jean-Claude Heidt, Sandra Cellina and Tiago De Sousa).

0,51Invasion
0,21Impact
0,10Risk

Worldwide distribution

Bibliography

  • Anselin, A., E. Branquart, K. Devos, J.-Y. Paquet, D. Strubbe, D. Vangeluwe & A. Weiserbs, 2011. Harmonia database: Aix galericulata (Linnaeus, 1758). Harmonia version 1.2, Belgian Forum on Invasive Species. URL: http://ias.biodiversity.be [accessed 2020-04-22]
  • GBIF, 2019. Aix galericulata (Linnaeus, 1758) in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei [accessed 2020-04-21]
  • MNHNL, 2000-. Aix galericulata (Linnaeus, 1758) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2020-04-21]
  • MNHNL, iNaturalist & GBIF, 2020. Aix galericulata (Linnaeus, 1758) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2020-04-21]
  • Ries, C., M. Pfeiffenschneider, Engel, E., J.-C. Heidt & M. Lauff, 2014. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of vertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 115: 195-201. [PDF 247 KB]
  • Weiss, J., 2015. Liste der Luxemburger Vogelnamen. Regulus Wissenschaftliche Berichte 29 (2014): 69-79. [PDF 1.1 MB]

 Page content last updated on 2024-03-06. Last proofread by Caroline Grounds on 2019-11-27.

  1. Cf. Weiss 2015: 73.[↩]

Spiraea ×billardii Hérincq

Posted onAuthorDr. Christian Ries

English Billard’s bridewort Status LU: established. 1st record: LU <1875, ITW 1949.
Lëtzebuergesch Billard-Kluddertrausch Status Eur.: established. 1st record: ?
Français Spirée de billard RA: ISEIA: B1, Watch List. Harmonia+: 0,00.
Deutsch Billards Spierstrauch Wikipedia: Wikipedia - Français - Spirée de billard | Wikispecies: Wikispecies - Spiraea × billardii
Nederlands Billardspirea Back to the list of neophytes

Brief description

Spierstrauch ZwieselSpiraea ×billardii Hérincq is a sterile horticultural hybrid between Spiraea alba Du Roi and Spiraea douglasii Hook. It only reproduces clonally. It grows mainly in ruderal areas and in riparian habitats. Plant habitat preferences are poorly known so far.

S. billardii is a fast-growing rhizomatous species, propagating clonally. As for other Spiraea species, it may easily form dense monospecific thickets smothering native vegetation. It is not known, however, if it has the capacity to inhibit plant successions like S. alba (Branquart et al. 2010).

Status and distribution in Luxembourg

Records of Spiraea ×billardii Hérincq in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-11-27.

Spiraea ×billardii Hérincq was first mentioned for Luxembourg by Koltz (1875: 66) in the section about S. salicifolia. We thus consider the first record to be anterior to 1875 (Ries & Krippel 2021).

François Léon Lefort (1917-1975) first documented the species in the wild on 1949-08-03 “along the Ernz Blanche downstream of Medernach, 300 m from the road to Diekirch”  (Herb. LUX specimen № 21985; MNHNL 2000-).

Currently, 5 records of Billard’s bridewort are accessible through the MNHNL-mdata portal (MNHNL, iNaturalist & GBIF 2019).

This horticultural species is often grown for ornamental purposes in parks and gardens. Subspontaneous or naturalised: old hedges, roadsides, embankments, wastelands (Lambinon & Verloove 2012: 326).

This Spiraea is by far the most widespread in the wild. However, the identity of the plant remains debatable: some authors distinguish Spiraea ×billardii (very pale pink corolla; narrowly conical inflorescence) and Spiraea ×Silverside Silverside (Spiraea douglasii × salicifolia) (bright pink corolla; subcylindrical inflorescence; leaf blade more regularly toothed, almost to the base), which would be much more common. However, the recognition of these two taxa seems difficult and therefore S. billardii is sometimes treated in a broad sense as a hybridogenic species that is more or less variable (Lambinon & Verloove 2012: 326).

Risk assessment

ISEIA protocol

B1 (2+2+3+2) = Watch List, reassessed on 24 January 2019 by C. Ries and M. Pfeiffenschneider. Original assessment: B0 (2+2+3+2) = Alert List (Ries et al. 2013: 19).

Harmonia+ protocol

Overall risk score 0,00 = (Overall Invasion score 0,00 x Overall Impact score 0,43) (Ries et al. 2020).

Overall risk score 0,00 = (Overall Invasion score 0,00 x Overall Impact score 0,43) (Ries et al. 2020).

0,00Invasion
0,43Impact
0,00Risk

Worldwide distribution

No worldwide distribution map available at CABI or GBIF (2020-03-04).

Bibliography

  • Branquart, E., P. Dupriez, S. Vanderhoeven, W. Van Landuyt, F. Van Rossum & F. Verloove, 2010. Harmonia database: Spiraea ×billardii Hérincq. Harmonia version 1.2, Belgian Forum on Invasive Species. URL: http://ias.biodiversity.be [accessed on 2019-10-15]
  • Lambinon J. & F. Verloove, 2012. Nouvelle flore de la Belgique, du grand-duché de Luxembourg, du Nord de la France et des régions voisines. Sixième édition. Avec la collaboration de L. Delvosalle, B. Toussaint, D. Geerinck, I. Hoste, F. Van Rossum, B. Cornier, R. Schumacker, A. Vanderpoorten et H. Vannerom. Jardin botanique national de Belgique, Meise. CXXXIX + 1195 pp. ISBN : 9789072619884.
  • MNHNL, 2000-. Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. National Museum of Natural History, Luxembourg. Spiraea ×billardii Hérincq observed on 1949-08-03, occurrence ID DSS00439000013HF, via https://mdata.mnhn.lu [accessed 2021-03-12].
  • MNHNL, iNaturalist & GBIF, 2019. Spiraea ×billardii Hérincq in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-15]
  • Ries, C. & Y. Krippel, 2021. First records of 56 invasive alien vascular plants in Luxembourg. Bulletin de la Société des naturalistes luxembourgeois 123: 115-127. [PDF 241 KB]
  • Ries, C., Y. Krippel & M. Pfeiffenschneider, 2020. Risk assessment after the Harmonia+ protocol of invasive alien vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 122: 197-205. [PDF 132 KB]
  • 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]

 Page content last updated on 2021-03-12. Last proofread by Caroline Grounds on 2019-11-21.