1. EcoLens and TreePlus: Tools for exploring ecological interaction data Cynthia Sims Parr Bongshin Lee, Ben Bederson University of Maryland, College Park

2. Ecological interaction webs From http://www.geog.ouc.bc.ca/physgeog/contents/9o.html

3. Ultimate problem: Computational approach to ecological interaction analysis Database Interaction Web Database ADW attributes Graph vis tools Algorithms Test predictions Predictions Explore for patterns Phylogenies Classifications

4. Food web visualization Williams, Martinez, Dunne, et al.

5. Web, network, or “graph” representations Node-link graphs Matrix List of connected pairs Trees with cross-links Coupled lists

6. TaxonTree

7. Data sources

8. Interface Goals Provide enough overview that users can decide where they want to explore Bring large datasets down to human scales Support systematic exploration dataset selection and comparison discovery of potentially interesting patterns data cleaning Provide environment for examining modeling results

9. EcoLens and TreePlus Demo

10. Goal Solution Provide enough overview that users can decide where they want to explore Bring large datasets down to human scales Support systematic exploration EcoLens Overview first, zoom and filter, details on demand” TreePlus “Plant a seed and watch it grow” EcoLens coupled lists TreePlus aligned, readable trees

11. Next steps Evaluate with food web researchers Visualize attributes of nodes and links Test against other graph viz alternatives Integrate with robust input and output tools Incorporate statistical computational tools

12. Broader implications Generalizable framework for highly interconnected data: NetLens and TreePlus Expanding the scale of web analysis among ecologists

13. Acknowledgements Sarah Hankerson, Paula Rodgers, Bill Fagan and other members of the Ecological Informatics class NSF ITR/IDM Microsoft Booze Allen Hamilton http://www.cs.umd.edu/hcil/biodiversity