As the Chair and the Executive Secretary of IPBES, we wish 
to recognize the leadership and dedication of the co-chairs, 
Prof. Helen Roy (United Kingdom), Prof. Anibal Pauchard 
(Chile), and Prof. Peter Stoett (Canada) and the hard work and 
commitment of all the coordinating lead authors, lead authors, 
review editors, fellows, contributing authors and external 
reviewers, and to warmly thank them for contributing their time 
and ideas freely to this important report. We would also like to 
recognize the hard work and dedication of Naoki Amako and 
Noriko Moriwake, heads of the technical support unit for this 
Assessment, Tanara Renard Truong, assessment coordinator, 
and Ryoko Kawakami, administrative officer. Our thanks go 
also to the current and former members of the Multidisciplinary 
Expert Panel (MEP) and of the Bureau who provided guidance 
3FOREWORDCo) aqyomayos4

The thematic assessment report on
INVASIVE ALIEN SPECIES
AND THEIR CONTROL
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