This document discusses invasive alien species and their management. It provides details on monitoring and controlling various invasive plant species that have become established in areas over time. The key points emphasized are the need for a strategic long-term plan to eliminate invasive species, securing necessary funding and public support, and remaining vigilant since the work of prevention and management is ongoing and must continue indefinitely.

1. Invasive Alien Species
Ruud Luntz

8. MONITORING POTENTIAL INVASIVE
SPECIES
Ludwigia grandiflora

9. Invasive Alien Species
Willem Stuulen

13. 2004
1989 2004
Prunus serotina development

14. ´
Bedekking
niet aanwezig
weinig (<1%)
veel (1%-10%)
zeer veel (>10%)
2004 - 2008 presence 75% -> 77%

15. 2004
2008
2016
Our plan

24. Bedekkingsschaal
niet aanwezig
r
p
a
m1
m2
m4
1-
1+
2
3
4
5
6
7
8
9
´Black cherry
development
2008-2012
´
Verschil 2008-2012
sterke afname
afname
gelijk
toename
sterke toename

31. Points of attention
• Make a strategic plan
• No compromises
• Invest everything to eliminate the invasive
species
• Perceive invasive species
• Communicate about the management

32. Invasive Alien Species
Leon Terlouw

33. The third step: The necessary continuation.
- Communication and public
support internal and external
- Funding
- The 5 most important issues/
lessons/ points of attention.

34. The necessary continuation
with examples from the dune area
2008; 2009; 2015

35. Communication and public support
internal
-try to involve your collegues and
keep them informed

36. Committing the
neighbours

37. Communication and public support
external
-cooperate with your neighbours
-keep telling your story

38. Funding: LIFE; PAS; own budgets
• Management during project, max. 5 years
• After LIFE: PAS
• Regular yearly budgets
• Volunteers?

39. The 5 most important issues/ lessons/
points of attention
• Stay alert• Never think you are ready now

40. The 5 most important issues/ lessons/
points of attention
• Check your area systematically;
f.e. check 25% of your area
every year

41. The 5 most important issues/ lessons/
points of attention
• Make sure you have regular
yearly budgets for invasive
species
Involve volunteers but never get
dependent on them
(Grazing helps)
Prevention is the best!

42. Healthy N2000 dune area
needs never ending attention, care
and ………
acceptance that the work will never stop