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<font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;"><i>"That's why I would like to know if you are aware of scientific studies showing any detrimental impact of those bird species in Belgium or in neighbour areas."<br>
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The study I made in 2002 was about to collect all the existing information about problems concerning invasive alien waterfowl species. See:<br>
</font><font face="Symbol" size="+0" color="#000000" style="font-family:Symbol;font-size:10pt;color:#000000;">· </font><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;">Beck, O.; Anselin, A., & Kuijken, E. 2002. Beheer van verwilderde watervogels in Vlaanderen. Rapport van het Instituut voor Natuurbehoud 2002.08. Brussel.<br>
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I think one could download this document on the INBO-website. <br>
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And yes, the eradication of Branta canadensis is in progress in Flanders. See:<br>
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· </font><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;">Beck, O. & Anselin, A. (2005). Beheer van verwilderde ganzenpopulaties in Vlaanderen. Natuur.Oriolus. <i>In press</i>.<br>
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Olivier Beck<br>
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<b>Invasive alien species in Belgium <<a href="mailto:invasive-species@biodiversity.be">invasive-species@biodiversity.be</a>> writes:<br>
</b></font><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Dear colleagues,</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">I received several e-mails related to the inclusion or the exclusion of bird species in the black list/category A (e.g. </font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:13pt;color:#000000;"> </font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Alopochen aegyptiacus,</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:13pt;color:#000000;"> </font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Branta canadensis and Pisttacula spp.). Olivier Beck (IBGE-BIM) and
Anne Weiserbs (AVES) suggest to include them in the list, mainly on the basis of the precautionary approach. One problem I see is that we do not have serious arguments to demonstrate that they are really detrimental to the environment, at least in the Brussels region (except noise and droppings). On the other hand, I know by Anny Anselin (INBO) that eradication of Branta candensis already started in Flanders... </font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">My position is as follows : if detrimental impact is proved > category A, if detrimental impact is only supposed > category B. That's why I would like to know if you are aware of scientific studies showing any detrimental impact of those bird species in Belgium or in neighbour areas. Thanks a lot in advance,</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Etienne</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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----- Original Message ----- <br>
<b>From:</b> </font></span><a href="mailto:E.Branquart@mrw.wallonie.be" target="_blank"><span style="background-color:#d0d0d0"><font face="Arial" size="+0" style="font-family:Arial;font-size:10pt;">BRANQUART Etienne</font></span></a><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:10pt;color:#000000;"> <br>
<b>To:</b> </font></span><a href="mailto:invasive-species@biodiversity.be" target="_blank"><span style="background-color:#d0d0d0"><font face="Arial" size="+0" style="font-family:Arial;font-size:10pt;">Invasive alien species in Belgium</font></span></a><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:10pt;color:#000000;"> <br>
<b>Cc:</b> </font></span><a href="mailto:m.depoorter@auckland.ac.nz" target="_blank"><span style="background-color:#d0d0d0"><font face="Arial" size="+0" style="font-family:Arial;font-size:10pt;">Maj De Poorter</font></span></a><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:10pt;color:#000000;"> <br>
<b>Sent:</b> Friday, February 03, 2006 6:18 PM<br>
<b>Subject:</b> [Invasive-species] Black and watch lists of invasive species inBelgium</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Dear All,</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">I produced a first attempt of black and watch list of invasive species for Belgium (see word document here attached). Category definitions were modified to take into account remarks provided by Leo, Filip, Nora and Roger as much as possible ...</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
<br>
</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">We now have two main categories that include species with a potential impact on environment, public health or economy, i.e. black and watch lists. It has to be noted that I decided to include in the black list some species which are not yet really naturalised or do not develop large populations in Belgium but that are well known to produce detrimental impacts in neighbour areas (e.g. Aedes, Ambrosia, Ludwigia, etc.). I think it is important not to omit them so that our list can be used as a tool to eradicate the first populations of undesirable species soon after their arrival in Belgium, which is the most cost efficient way to get rid of them.</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
<br>
</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">The work file I used to categorise species is also attached (pdf file). You will see that some species are still not included in any category as background information was missing... I hope I can rely on your own expertise on specific taxa to fill those gaps.</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">I hope we will succeed to finalise these lists as a product of the Belgian Invasive Species Forum before the SOS invasions meeting (lists should be distributed to conference attendees !). Any remark, suggestion, addition to the discussion document are of course very welcome through the discussion list (general discussion) or through my e-mail address solely (minor remarks or corrections).</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Thank you in advance for your help. Have a very nice WE,</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">Etienne</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
<br>
</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">PS: Few economic pest species are included in the lists up to now. Do you think it is feasible to add major culture pathogens and pests in the lists (including fungi, nematodes, etc.) ? Do you know if this information is already available somewhere (AFSCA ? EPPO ?...) ?</font></span><span style="background-color:#d0d0d0"><font face="Times New Roman" size="+0" color="#000000" style="font-family:Times New Roman;font-size:12pt;color:#000000;"><br>
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</font></span><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;">==========================================================================<br>
<br>
Dr. Etienne Branquart<br>
Belgian Biodiversity Platform (SPO)<br>
<br>
Ministere de la Region wallonne<br>
Centre de Recherche de la Nature, des Forets et du Bois (DGRNE)<br>
Avenue Marechal Juin, 23<br>
B-5030 Gembloux- Belgium<br>
<br>
Tel : + 32 (0)81 620 420<br>
Fax : + 32 (0)81 620 436<br>
E-mail : </font></span><a href="mailto:E.Branquart@mrw.wallonie.be" target="_blank"><span style="background-color:#d0d0d0"><font face="Arial" size="+0" style="font-family:Arial;font-size:11pt;"><a href="mailto:E.Branquart@mrw.wallonie.be">E.Branquart@mrw.wallonie.be</a></font></span></a><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;"><br>
URL: </font></span><a href="http://www.biodiversity.be" target="_blank"><span style="background-color:#d0d0d0"><font face="Arial" size="+0" style="font-family:Arial;font-size:11pt;"><a href="http://www.biodiversity.be" target="_blank">http://www.biodiversity.be</a></font></span></a><span style="background-color:#d0d0d0"><font face="Arial" size="+0" color="#000000" style="font-family:Arial;font-size:11pt;color:#000000;"><br>
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met vriendelijke groeten,<br>
<br>
BECK Olivier<br>
Brussels Instituut voor Milieubeheer - Institut bruxellois pour la gestion de l'environnement<br>
Afdeling Groene Ruimten - Division Espaces Verts<br>
Departement Biodiversiteit - Département Biodiversité<br>
Gulledelle 100<br>
1200 Brussel - Bruxelles<br>
tel: 02/775.77.14<br>
fax: 02/775.77.21<br>
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