Presentation is loading. Please wait.

Presentation is loading. Please wait.

Barents Sea food-web topology from phytoplankton to whales

Similar presentations


Presentation on theme: "Barents Sea food-web topology from phytoplankton to whales"— Presentation transcript:

1 Barents Sea food-web topology from phytoplankton to whales
Annual meeting Bergen 2011 Barents Sea food-web topology from phytoplankton to whales R. Primicerio, K. Michalsen, M. Aschan, G. Certain, P. Dalpadado, A. Dolgov, M. Fossheim, H. Gjøsæter, C. Hansen, E. Johannesen, L. Lindal-Jørgensen, B. Planque, M. Skern-Mauritzen, M. Wiedemann

2 Barents Sea food-web

3 Barents Sea food-web Robustness Compartment- alization
the degree to which subsets of species are connected with other species in the food web

4 Barents Sea food-web Robustness Compartment- alization
Network analysis Food web property quantifiable just using the basic network structure (“topology”) of feeding interactions.

5 Barents Sea food-web Food web topology Compilation Species list
Feeding links Food web properties quantifiable just using the basic network structure (“topology”) of feeding interactions.

6 Barents Sea food-web Food web topology Compilation Species list
Feeding links Food web properties quantifiable just using the basic network structure (“topology”) of feeding interactions.

7 Barents Sea food-web Food web topology Compilation Bodini et al. 2009
Ltot = 1001 C = Cbar =

8 Barents Sea food-web Food web topology Compilation Bodini et al. 2009

9 Barents Sea food-web Food web topology Compilation Fish
Bodini et al. 2009 Fish 35 nodes 77 links

10 Barents Sea food-web Food web topology Compilation BarEcoRe
Trophic-species 227 15 sea mammals 10 sea birds 88 fish 62 benthos 45 plankton

11 Barents Sea food-web Food web topology Compilation BarEcoRe
Trophic-species 227 Trophic links >1150

12 Barents Sea food-web Food web topology Analysis BarEcoRe Fish 88 nodes
305 links

13 Barents Sea food-web Food web topology Analysis Fish
Bodini et al. 2009 BarEcoRe 2011

14 Barents Sea food-web Conclusions BarEcoRe food-web compilation
227 species, >1150 links Comparative analysis of food-web compartmentalization


Download ppt "Barents Sea food-web topology from phytoplankton to whales"

Similar presentations


Ads by Google