[Invasive-species] New webpages for the Belgian Forum on Inva sive Species

Wed Jan 11 10:36:31 CET 2006

Dear Etienne
I have seen the invasive species list of Belgium and I do think that the
list is somewhat short. Although I do not have any idea how many species and
which species really do occur in Belgium, but there are some errors made in
that list. As a member of the Dutch version of invasive species forum, I'm
responsible for the invertebrate list of the invasive species in The
Netherland presented on www.wew.nu\exoten <http://www.wew.nu\exoten> . While
verifying the Dutch list with the Belgian list there are some differences of
which I mention some below. Also the list of freshwater species of the
higher plants must be longer than this (5 species!). in The Netherland there
are about 30 species recorded.

1.	

	the absence of Corbicula fluminalis strikes me. It has been
introduced in The Netherlands in 1988.
2.	

	Dreissena polymorpha most likely originates from the Ponto-Caspian
area
3.	

	Mytilopsis leucophaeta is a species that originates from N-America
or NW-Africa. The first European record is from 1835 from the harbour of
Antwerpen. The original distribution area is the Gulf of Mexico and adjacent
Atlantic Ocean.
4.	

	Astacus leptodactylus originates form Eastern Europe
5.	

	Chelicorophium curvispinum, Dikerogammarus villosus and D.
hamobaphes originate from the Ponto-Caspian area.
6.	

	Dikerogammarus haemobaphes in Belgium seems unlikely, the nearest
record in western Europe seems to be some few records in Germany. Recent
claims from this species in the Nertherlands were all female or specimens
with an artefact.
7.	

	Orchestia cavimana originate from southern Europe
8.	

	the North-American Gammarus tigrinus is quit common in The
Netherlands since 1960. It seems likely that this species also occurs in
Belgium.
9.	

	the absence of both Hemimysis anomala and Limnomysis benedeni seems
peculiar. The last species is extremely common throughout The Netherlands
since it was introduced in 1997.
10.	

	the absence of Atyaephyra desmaresti (a meditterenean species). This
species has been collected in Belgium for the first time in 1886.
11.	

	the oligochaet Quistadrilus multisetosis also occurs in Belgium and
originates from North-America. This species had probably been introduced (at
least in The Netherland) around 1980.
12.	

	the mosquitoe Aedes albopictus also occurs in Belgium as an invasive
species from North-America or Asia. There is a record from 2003 from
Antwerpen. Although I understand this species is deliberately omitted from
the list, for it's a vector of a human disease.
13.	

	the beetle Stenopelmus rufinasus is a north-American species that
has been introduced in France at the beginning of the 20th century. Between
1915-1922 the beetle arrived in The Netherlands and is now extremely common
on and between Azolla.
14.	

	the fish Ctenopharyngidon idellus originates (Dutch specimens) from
china
15.	

	Hypophthalmichthys molitrix originates from Russia or China

Note that this is just a short list of Dutch species, and that the origin or
introduction year maybe different in Belgium. You may check our list on
www.wew.nu\exoten <http://www.wew.nu\exoten> .

Best wishes
Ton van Haaren
Grontmij|AquaSense

   _____  

From: BRANQUART Etienne [mailto:E.Branquart at mrw.wallonie.be] 
Sent: Tuesday, January 10, 2006 4:47 PM
To: invasive-species at biodiversity.be
Subject: [Invasive-species] New webpages for the Belgian Forum on Invasive
Species

Dear all,

New webpages of the Belgian Forum on Invasive Species have been developed
and are accessible from the following URL :

http://www.biodiversity.be/thematic-forums/invasive-alien-species
<http://www.biodiversity.be/thematic-forums/invasive-alien-species> 

As you'll see, the list of invasive alien species in Belgium has been
updated, thanks to the contribution of numerous forum members. I would like
to take the opportunity to thank all of you who contributed to this task by
sending information on new invasive species in Belgium. Species factsheets
will be incorporated in the new website in a few days, including additional
species profiles on fishes, parakeets, etc. A special thank to Dieter
Anseeuw, Marie Pairon and Diederik Strubbe who prepared background
information for those new profiles.

Of course, new species and information can be added to this reference list
for Belgium. Please feel free to send new information on the list or
directly to my e-mail address.

On those pages, new information is also avaiable on international IAS
resources (working groups, research networks, etc.), thematic news and
events, etc. Additional information on legislation and other IAS-related
issues will be also developed in the future. Any comment or suggestion is
very welcome.

Very best regards,

Etienne Branquart

==========================================================================

Dr.  Etienne Branquart
Belgian Biodiversity Platform (SPO)

Ministere de la Region wallonne
Centre de Recherche de la Nature, des Forets et du Bois (DGRNE)
Avenue Marechal Juin, 23
B-5030 Gembloux- Belgium

Tel :   + 32 (0)81 620 420
Fax :  + 32 (0)81 620 436
E-mail : E.Branquart at mrw.wallonie.be <mailto:E.Branquart at mrw.wallonie.be> 
URL: http://www.biodiversity.be <http://www.biodiversity.be> 

==========================================================================

Ce message n'engage aucunement la DGRNE et reste informel.  Tout courrier
officiel doit toujours actuellement être confirmé par lettre et revêtu de la
signature d'un agent dûment mandaté
==========================================================================

<< Please read our E-mail Disclaimer at http://emaildisclaimer.grontmij.com
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.biodiversity.be/pipermail/invasive-species/attachments/20060111/1b91d411/attachment.html>