Department of Biology , Faculty of Science, University of Zagreb
Croatian Forest Research Institute
Public Institution Maksimir



(Schedule of oral, and list of poster presentations)

Book of Abstracts

Photo gallery (password protected zip archive, 326 MB)


Dear Colleagues!

We continue with the main idea from the 1st Symposium, to gather experts dealing with as many different aspects of invasive species as possible. The duration of the Symposium will be two days, and time of year remained the same as at previous Symposia, enabling presentation of the most recent collected data. We are planning to have good “old-fashioned” meeting in person, but given the Covid-19 circumstances at the time of Symposium, we will enable hybrid meeting combining on-site and on-line participation, if needed.


Last Circular

Keynote Speakers

Elena Tricarico (University of Florence, IT)
Title: Aware and Active Citizens to Tackle Invasive Alien Species

Bruce Osborne (University College Dublin, IE)
Title: Gunnera Invasions and Their Wider Implicatons

Organizing Committee

Sven Jelaska, University of Zagreb
Dinka Matošević, Croatian Forest Research Institute
Damjana Levačić, University of Zagreb
Lucija Šerić Jelaska, University of Zagreb
Biljana Janev Hutinec, Public Institution Maksimir

Scientific Committee

Sven Bacher (University of Fribourg, CH)
Sanja Gottstein (University of Zagreb, HR)
Željko Gottstein (University of Zagreb, HR)
Nenad Jasprica (University of Dubrovnik, HR)
Sven Jelaska (University of Zagreb, HR)
Mitja Kaligarič (University of Maribor, SI)
Dinka Matošević (Croatian Forest Research Institute, HR)
Enrih Merdić (University of Osijek, HR)
Nina Šajna (University of Maribor, SI)
Elena Tricarico (University of Florence, IT)
Teodora Trichkova (IBER, BG)
Krešimir Žganec (University of Zadar, HR)
Ante Žuljević (IZOR Split, HR)


19 September 2021 (extended till 26th)

Abstract Submission Deadline

17 October 2021 (extended till 24th)

Decision on Acceptance

31 October 2021 (extended till November 7th)

Deadline for Registration of participants with presentation(s)*

31 October 2021 (extended till November 7th)

End of the lower Registration fee

29-30 November 2021


*Even if you will participate without presentation You are mostly welcomed to register as early as possible to give us estimation on number of potential participants which will help us in the organisation of the Symposium


Formatting your Abstract

Abstract should contain objectives, methods, results and conclusion. Be as specific as possible, avoiding purely descriptive and speculative content. At the end of Abstract, add 4-5 keywords (avoid words from the title).
Abstract (without title, authors and their affiliations) should not exceed 300 words. Title should be printed in capital letters. Write full names of the Authors (except for Middle names which should be with initials only). Do not use academic titles. If different, use number in the superscript to indicate different affiliations of the co-authors. Underline the presenting author.

You can use this template for formatting your abstract. Prior to sending please (re)name your abstract in the format "4CSIS-Abstract-Surname-Name

Abstracts should be sent to this e-mail address till 19 September 2021. In case you haven't received confirmation of abstract submission within 48 hours, please contact Sven Jelaska.

Please indicate on top of your abstract preffered way of your presentation (oral or poster).

Scientific Committee can propose changes of the preferred way of presentation indicated by the authors, in which case these will be discussed with the authors.
Accepted abstracts will be printed in the Book of Abstracts only if registration fee is payed until 31 October 2021. In case of payments after the aforementioned date, we cannot guarantee the inclusion in the Book.


Please fill the registration form and send it to

Registration fees

The lower registration fee for regular participant is 60 EUR (450 HRK), while for students, retired and unemployed persons is 45 EUR (340 HRK) - certificate for the particular status is required. After October 31, both fees increase by 10 EUR (75 HRK). Please note, that on-site fee can be paid only in Croatian kunas.
Registration fee includes conference materials (including the Certificate of attendance), and refreshments during the coffee breaks.
You can pay the registration fee by the bank transfer, in Euros or in Croatian kunas (preferred), using the following account:

Account holder:  Hrvatsko ekološko društvo (Croatian Ecological Society)
Bank: Zagrebačka banka d.d.
  Trg Bana Josipa Jelacica 10, HR-10000 Zagreb
IBAN: HR1823600001101583068
VAT: HR64844457666

In the Description/Purpose please write: “4CSIS Surname Name”
If your institution is paying multiple registration fees by single bank transfer (which is mostly welcome to reduce transfer costs), please inform us for which participants particular payments stands for.


The Symposium will take place in the Hotel “Dubrovnik”, situated in the very centre of Zagreb (the main city square). The Venue is easily accessible by a number of tram lines directly from the main train and bus terminal. Zagreb airport is connected with the city centre by public transport (bus line 290) which operates every 35 minutes ( and with shuttle bus operated by Pleso prijevoz. Within walking distance the Venue is surrounded with a wide array of possible accommodations, from low budget to exclusive hotels. Same goes for the places where you can eat. Therefore, we invite you to invade the heart of the city and explore it all (after the sessions, of course). In case you are interested for accommodation in the Hotel Dubrovnik, please contact the Hotel, using this form.