Polytraits: A database on biological traits of marine polychaetes
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Presentation of Polytraits at the EMODnet Traits Vocabulary workshop in Paris. The presentation gives a short overview of the polytraits database and discusses its problems.
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Polytraits: A database on biological traits of marine polychaetes
- 1. A database on biological traits of polychaetes http://polytraits.lifewatchgreece.eu Sarah Faulwetter Hellenic Centre for Marine Research
- 2. http://polytraits.lifewatchgreece.eu background ● first started in-house in 2006 ● aim: collecting traits to perform BTA ● initially: dataset with 102 polychaete species from Mediterranean lagoons ● manual text mining ● link to citation, original text snippet recorded ● data collection: purpose-driven, not systematic
- 3. background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation
- 4. background
- 5. background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation
- 6. background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation
- 8. trait selection Consultation of existing literature & databases Creation of list of traits & modalities Adaptation for polychaetes Definitions & ontology mapping mainly: BIOTIC, papers by Bremner et al., Annelid reproduction (Rouse & Pleijel) All traits are categorical Each trait has several modalities Each modality can be present or/and absent Polychaete-specific traits, e.g. pharynx structure, epitoky, range of body sizes... Clear definition of traits, mapped to existing ontology concepts where possible
- 10. trait selection 21 17 9 adult traits reproductive traits larval traits 47 traits, 252 modalities ca. 5 traits “unsuitable”
- 11. problems encountered “Unsuitable” traits ● Trait not applicable for polychaetes: “migration” → there is no significant migration in polychaetes
- 12. problems encountered “Unsuitable” traits ● Trait not applicable for polychaetes: “migration” → there is no significant migration in polychaetes ● Trait “wrongly” defined e.g. “Sociability” should be either “solitary, gregarious...” or “commensal of ..., parasite of..., ….”
- 13. problems encountered Modalities too specialised
- 14. problems encountered Modalities too specialised
- 15. problems encountered Modalities too specialised
- 16. problems encountered Modalities too specialised needs hierarchy
- 17. problems encountered Traits with “endless” modalities
- 18. problems encountered Traits with “endless” modalities
- 19. problems encountered Traits with “endless” modalities
- 20. problems encountered Overlap / Correlation of traits & modalities
- 21. problems encountered Missing traits ( & modalities) ● Larval & adult dispersal potential ● Additional morphology traits, e.g. sensory organs ● Resistance to physical disturbance ● Environmental position (infauna, epifauna,...) ● Socio-economic traits
- 22. If I could do it again...
- 23. Wishlist ● Clearly define each trait and modality from the beginning, incl. examples ● Introduce hierarchy of traits ● Avoid conversion of numerical values into categories ● ● ● ● Weighting mechanism (e.g. “usually found on sand, rarely on mud”) Add flags for uncertainty Add geo-coding of origin of information (same species does different things in different areas) Introduce species interactions