Wouter van Steenis

Luc Geelen e.a.

RESULTS WORKSHOPS

WORKSHOP 1

Management in White dunes:

Answer blowing in the wind?

Paul Rooney, Maaike Veer, Leon Terlouw

WORKSHOP 1 MAIN TOPICS

In the rejuvenation of dunes and

Attemps to link the beach and dune systems;

What are our succes measures?

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, duneheroes, work with nature &change

The answer is blowing in the wind!

WORKSHOP 2

Creating blowouts: what to expect?

Dick Groenendijk, Tycho Hoogstrate &

Camiel Aggenbach

WORKSHOP 2 MAIN TOPICS

Why creating blowouts?

to maintain and improve Grey dunes!

Is small scale eolian activity a cure for deteriorated

Grey dunes?

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

WORKSHOP 3

Dynamic coastal management:

The best way forward?

Luc Geelen, Joost Veer & Gerben Ruessink

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

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.

WORKSHOP 4

Research and monitoring dynamic dunes:

State of the art

Bas Arens, Hubert Kivit, Wouter Steenis

WORKSHOP 4 MAIN TOPICS

N2000 monitoring internationally

comparable?

..is there1 standard?

WORKSHOP 4 MAIN OUTCOME

Quality targets & monitor methods not

well defined

Species composition & veg. Types differ strongly

between sites

Get started & keep going

WORKSHOP 5

Invasive Alien Species

Henk Siebel, Leon Terlouw, Willem Stuulen,

Ruud Luntz

WORKSHOP 5 TOPICS

Which invasive alien species are establishing in the

dunes?

What are best practices?

WORKSHOP 5 OUTCOME

Early detection & eradication

Consequent managment essential

Public support is important

No compromises no regrets

WORKSHOP 6

Large scale vs. mosaic management

Anton van Haperen, Marten Annema, Peter

Spierenburg & Mark van Til

WORKSHOP 6 TOPICS

What are the essentials of Grey Dunes?

What are their favourable conditions?

When to choose small – when large scale?

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)

WORKSHOP 7

Dune grasslands and fauna

Vincent van der Spek, Marijn Nijssen &

Dick Groenendijk

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

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

WORKSHOP 8

Grazing the dunes:

are goals and effects clear?

Hubert Kivit & Harrie van der Hagen

WORKSHOP 8 MAIN ISSUES

Better off without large grazers?

Start rabbit farming?

Grazing or mowing

Dynamic grazing!!

WORKSHOP 8

Grazing …when started continue

for >50y

Lessons from old practice? & What about the

predators?

Extensive mixed agricultural use

Experiments to learn

WORKSHOP 9

Dune challenges in a European context

John Houston, John Janssen & Sjakel van Wesemael

Unfavourable - Inadequate

Unfavourable - Bad

WORKSHOP 9 MAIN ISSUES

National & international knowledge exchange

1. Management (good practice)

2. Science – methodologies

3. Social approaches

€ for knowledge exchange & “applied fundamental”

research

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

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