Dynamic Dunes Congress 2015 Workshop feedback results - Wouter van Steenis

1. Wouter van Steenis
Luc Geelen e.a.
RESULTS WORKSHOPS

2. WORKSHOP 1
 Management in White dunes:
Answer blowing in the wind?
 Paul Rooney, Maaike Veer, Leon Terlouw

3. WORKSHOP 1 MAIN TOPICS
 In the rejuvenation of dunes and
 Attemps to link the beach and dune systems;
 What are our succes measures?

4. WORKSHOP 1 OUTCOME
 Do it!!! Process based, nature needs help, but realistic
 Measures: geomorph. based & biodiversity measures AND
PEOPLE
 Urgency : adaptation climate change, work together, dune
heroes, work with nature &change
The answer is blowing in the wind!

5. WORKSHOP 2
 Creating blowouts: what to expect?
 Dick Groenendijk, Tycho Hoogstrate &
Camiel Aggenbach

6. WORKSHOP 2 MAIN TOPICS
 Why creating blowouts?
to maintain and improve Grey dunes!
 Is small scale eolian activity a cure for deteriorated
Grey dunes?

7. WORKSHOP 2 RESULTS
1. clues to create successful blowouts?
Effect on base chemistry is a key factor
Make secondary succession possible
2: how big/ which density of blowouts?
Better more small than a few big -> small scale gradients
There is no (natural) baseline for density
Dimension has to be based on ecological goals
3: where to create blowouts?
give way for wind -> short vegetation, open landscape
dune zones where it is needed
balance geomorphological and ecological arguments
Geomorphodynamics: good prospects for eolian activity
Ecology: not on valuable spots

8. WORKSHOP 3
 Dynamic coastal management:
The best way forward?
 Luc Geelen, Joost Veer & Gerben Ruessink

9. WORKSHOP 2 SOME TOPICS
 Dynamic coastal management demands a dynamic
assessment tool: from a safe coast to a healthy coast
 Too much sand leads to an obese coast
 Drop off nourishments will NOT lead to dynamics in
the front dunes on a short term

10. WORKSHOP 3 OUTCOME
Best way forward = integrate nature & safety & socio-
economy
Customize the measures e.g. combined use of small
nourishments and foredune trenches this will stimulate
dune remobalisation.

11. WORKSHOP 4
 Research and monitoring dynamic dunes:
State of the art
 Bas Arens, Hubert Kivit, Wouter Steenis

12. WORKSHOP 4 MAIN TOPICS
 N2000 monitoring internationally
comparable?
 ..is there1 standard?

13. WORKSHOP 4 MAIN OUTCOME
 Quality targets & monitor methods not
well defined
 Species composition & veg. Types differ strongly
between sites
 Get started & keep going

14. WORKSHOP 5
 Invasive Alien Species
 Henk Siebel, Leon Terlouw, Willem Stuulen,
Ruud Luntz

15. WORKSHOP 5 TOPICS
 Which invasive alien species are establishing in the
dunes?
 What are best practices?

16. WORKSHOP 5 OUTCOME
 Early detection & eradication
 Consequent managment essential
 Public support is important
 No compromises no regrets

17. WORKSHOP 6
 Large scale vs. mosaic management
 Anton van Haperen, Marten Annema, Peter
Spierenburg & Mark van Til

18. WORKSHOP 6 TOPICS
 What are the essentials of Grey Dunes?
 What are their favourable conditions?
 When to choose small – when large scale?

19. WORKSHOP 6
 Grey Dunes broad concept
 Organic soil + some rejuvenation + some
human impact
 Mosaic management especially effective in
middle & hinter dunes
 Large scale is appropriate on disturbed sites
(& White dunes)

20. WORKSHOP 7
 Dune grasslands and fauna
 Vincent van der Spek, Marijn Nijssen &
Dick Groenendijk

21. WORKSHOP 7 MAIN TOPIC
 Attention for fauna is growing,
at least at management level.
 Nature policy systems (N2000 PAS) however could be
improved for fauna

22. WORKSHOP 7
 How to deal with all these restauration
works planned?
 How much patience do we have an/or need?
 How to develop effective fauna monitoring

23. WORKSHOP 8
 Grazing the dunes:
are goals and effects clear?
 Hubert Kivit & Harrie van der Hagen

24. WORKSHOP 8 MAIN ISSUES
 Better off without large grazers?
 Start rabbit farming?
 Grazing or mowing
 Dynamic grazing!!

25. WORKSHOP 8
 Grazing …when started continue
for >50y
 Lessons from old practice? & What about the
predators?
 Extensive mixed agricultural use
 Experiments to learn

26. WORKSHOP 9
 Dune challenges in a European context
 John Houston, John Janssen & Sjakel van Wesemael
Unfavourable - Inadequate
Unfavourable - Bad

27. WORKSHOP 9 MAIN ISSUES
 National & international knowledge exchange
1. Management (good practice)
2. Science – methodologies
3. Social approaches
 € for knowledge exchange & “applied fundamental”
research

28. WORKSHOP 9 MAIN OUTCOME
 Common goal: change the bad scores!
 Political influence by biogeo. Process
 Positive Dutch results to atlantic region
by EDN (= us!!) + EUCC
 Follow- up meetings
 OBN  research needs H2020 Agenda

29. WORKSHOPS: THANKS TO YOU
Bas Arens, Anton van Haperen, Marten Annema, Peter Spierenburg, Mark van
Til, John Houston, John Janssen, Sjakel van Wesemael, Paul Rooney, Maaike
Veer, Leon Terlouw, Hubert Kivit, Harrie van der Hagen, Jan Joris van Kampen,
Luc Geelen, Joost Veer, Gerben Ruessink, Wouter van Steenis, Vincent van
der Spek, Marijn Nijssen, Dick Groenendijk, Tycho Hoogstrate, Camiel
Aggenbach