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Bar-EcoRe Workshop Tromsø 08.06.11

Bar-EcoRe Workshop Tromsø 08.06.11. BarEcoRe: Food web analysis Raul Primicerio. Bar-EcoRe WP4 Tromsø 2011. Outline Barents Sea food web analysis compilation.

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Bar-EcoRe Workshop Tromsø 08.06.11

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  1. Bar-EcoRe Workshop Tromsø 08.06.11 BarEcoRe: Food web analysis Raul Primicerio

  2. Bar-EcoRe WP4 Tromsø 2011 Outline Barents Sea food web • analysis • compilation BarEcoRe: evaluate the effects of global environmental change on the future structure and resilience of the Barents Sea ecosystem

  3. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Robustness Diversity Redundancy Compartmentalization Vulnerability • Adaptability • Sensitivity

  4. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Robustness • Compartment- alization • the degree to which subsets of species are connected with other species in the food web

  5. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Robustness • Compartment-alization • Network analysis

  6. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Food web topology • 13 metrics • robustness • stability

  7. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Food web topology • 13 metrics • Bodini et al 2009

  8. Bar-EcoRe WP4 Tromsø 2011 Food web analysis N=20 N=30 Food web topology • Bodini et al 2009 N=50

  9. Bar-EcoRe WP4 Tromsø 2011 Food web analysis N =151 Ltot = 1001 C = 0.0442 Food web topology • Bodini et al 2009

  10. Bar-EcoRe WP4 Tromsø 2011 Food web analysis N =151 Ltot = 1001 C = 0.0442 Cbar = 0.0713 Food web topology • Bodini et al 2009 • Compartment-alization

  11. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Food web topology • Bodini et al 2009

  12. Bar-EcoRe WP4 Tromsø 2011 Food web analysis Food web topology • Bodini et al 2009

  13. Bar-EcoRe WP4 Tromsø 2011 Barents Sea food web • analysis • compilation

  14. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Food web topology • Bodini et al 2009

  15. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Food web topology • Bodini et al 2009 • Choice of species

  16. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Food web topology • Bodini et al 2009 • Choice of species • Grouping of species

  17. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Food web topology • Bodini et al 2009 • Choice of species • Grouping of species • Feeding links

  18. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Workshop Bodini et al 2009 Add species? Ungroup species? Group species? Omit species? Update links? Food web topology • Choice of species • Grouping of species • Feeding links

  19. Bar-EcoRe WP4 Tromsø 2011 Food web compilation Workshop Bodini et al 2009 Add species? Ungroup species? Group species? Omit species? Update links? Food web topology • Choice of species • Grouping of species • Feeding links What are the criteria for including a species? What are the criteria for including a link? What about intermittent species? How do we deal with species advected from the Norwegian Sea? Do we restrict to Atlantic waters or do we include Arctic waters? What about the ice fringe?

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