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L1 Crash course 'kantelen

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Aquatisch ecoloog Wolf Mooij legt uit hoe ecosystemen kunnen kantelen van de ene toestand in de andere.

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Page 1: L1 Crash course 'kantelen
Page 2: L1 Crash course 'kantelen

Aralmeer, Centraal Azië, 2008

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Victoriameer, Oost Afrika, 2008

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Tai meer, China, 2007

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Alternatieve stabiele toestanden

Ecosysteem toestand

Scheffer et al. (2001) Nature

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dx/dt = s(y-x)

dy/dt = rx-y-xz

dz/dt = xy – bz

s = 10

r = 28

b = 8/3

Page 12: L1 Crash course 'kantelen

dx/dt = s(y-x)

dy/dt = rx-y-xz

dz/dt = xy – bz

s = 10

r = 28

b = 8/3

dx/dt = s(y-x)

dy/dt = rx-y-xz

dz/dt = xy – bz

s = 10

r = 28

b = 8/3

Chaos in de zin van chaos-theorie!

Page 13: L1 Crash course 'kantelen
Page 14: L1 Crash course 'kantelen

I PROVISIONING SERVICES

1 Food

2 Water

3 Raw materials

4 Genetic resources

5 Medicinal resources

6 Ornamental resources

II REGULATING SERVICES

7 Air quality regulation

8 Climate regulation

9 Moderation of extreme events

10 Regulation of water flows

11 Waste treatment

12 Erosion prevention

13 Maintenance of soil fertility

14 Pollination

15 Biological control

III HABITAT SERVICES

16 Maintenance of life cycles of migratory

species

17 Maintenance of genetic diversity

IV CULTURAL SERVICES

18 Aesthetic information

19 Opportunities for recreation & tourism

20 Inspiration for culture, art and design

21 Spiritual experience

22 Information for cognitive development

I PROVISIONING SERVICES

1 Food

2 Water

3 Raw materials

4 Genetic resources

5 Medicinal resources

6 Ornamental resources

II REGULATING SERVICES

7 Air quality regulation

8 Climate regulation

9 Moderation of extreme events

10 Regulation of water flows

11 Waste treatment

12 Erosion prevention

13 Maintenance of soil fertility

14 Pollination

15 Biological control

III HABITAT SERVICES

16 Maintenance of life cycles of migratory

species

17 Maintenance of genetic diversity

IV CULTURAL SERVICES

18 Aesthetic information

19 Opportunities for recreation & tourism

20 Inspiration for culture, art and design

21 Spiritual experience

22 Information for cognitive development

Ecosysteemdiensten volgens Millenium Ecosystem Assessment

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DeMenocal (2000) Quat. Sci. Rev.; Claussen, et al (1999) Geophysical Research Letters

dust

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Sociaal-ecologische terugkoppelingen in Lake Victoria

Downing et al. (2013) In prep

Page 18: L1 Crash course 'kantelen

Alternative stable states ala Scheffer

1

Scheffer (1992) Shallow Lakes Book

Ecologische terugkoppelingen in ondiepe meren

Page 19: L1 Crash course 'kantelen

Nutrientcycli door het voedselweb

Janse et al (2010) Ecol. Mod.

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Waarschuwingssignalen voor op handen zijnde omslagen

Van Nes en Scheffer (2007) Am. Nat.

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Globaal kantelen?

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A safe operating space for humanity

Rockstrom et al (2009) Nature

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