Albert norstrom intro to resilience
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Albert Norström's introduction to resilience, at the CPWF Resilience TWG inception workshop, Tempe 11 March 2011
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Albert norstrom intro to resilience
- 1. Introduction to resilience thinking Albert Norström Stockholm Resilience Centre [email_address]
- 2. The context
- 9. Engineering vs ecosystem resilience
- 29. Herbivores Habitat builders Predators Pollinators Seed dispersers Functional diversity confers resilience
- 30. Herbivores Habitat builders Predators Pollinators Seed dispersers Functional diversity confers resilience
- 31. Functional redundancy confers resilience Herbivores
- 40. 1. Hurricane Allen (1980) 2. sea urchin disease (1983) extensive coral mortality mass mortality of sea urchins coral recruitment algal recruitment algal recruitment grazing no grazing
- 51. Transformations
Hinweis der Redaktion
- Background - understand these substantial undesirable shifts in marine ecosystems and the ecological and social elements that cause them but also can reverse them.
- -Set the context in which resilience is increasingly being seen as a framework that can help sustainable human-ecosystem interactions -Humanity is a major force in global change and shapes ecosystem dynamics from local levels to the biosphere as a whole
- Humanity is the major force of change of the earth system
- Humanitys influence on marine ecosystems also very high
- At the same time human societies and globally interconnected economies rely on ecosystem services and support. The MA described the state of ES and the magnitude of human use. What is worrying
- We seem to be reaching several planetary boundaries - biophysical thresholds that when passed may tip the whole earth system away from the relatively stabel conditions (for humanity that have existed for the past 10,000 yrs)
- Roots of resilience are actually from ecology and work from different schools of thought on how ecosystem dynamics play out
- Traditionellt så har man ett perspektiv att ekosystem är linjära och ganska förutsägbara system. Ett antagande är a)...
- Men stämmer det här riktigt? Nej! Man observerade i flera ekosystem att systemet kan hoppa från ett läge till en annan. Ofta svårt att “rulla tillbaka”, återhämtning kanske var omöjlig eller i alla fall tog väldigt lång tid!
- Men stämmer det här riktigt? Nej! Man observerade i flera ekosystem att systemet kan hoppa från ett läge till en annan. Ofta svårt att “rulla tillbaka”, återhämtning kanske var omöjlig eller i alla fall tog väldigt lång tid!
- This phase shift was very persistent. We describe it as a regime shift to an alternative stabel state.
- Men stämmer det här riktigt? Nej! Man observerade i flera ekosystem att systemet kan hoppa från ett läge till en annan. Ofta svårt att “rulla tillbaka”, återhämtning kanske var omöjlig eller i alla fall tog väldigt lång tid!
- Resilience thinking gathers similar concept from other disciplines to see similarities and differences in behaviour. Systems thinking background. Fuzziness can be a strenght in this context.
- Essential elements to navigate this transformation were the ability to network knowledge from the local level to influence the decision-making processes at the na- tional level, and a preexisting social network of fishers that pro- vided political leverage through a national confederation of artisanal fishing collectives.