Polytraits: A database on biological traits of marine polychaetes

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Information about Polytraits: A database on biological traits of marine polychaetes
Technology

Published on February 17, 2014

Author: SarahFaulwetter

Source: slideshare.net

Description

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.

A database on biological traits of polychaetes http://polytraits.lifewatchgreece.eu Sarah Faulwetter Hellenic Centre for Marine Research

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

background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation

background

background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation

background ~ 1000 species-level taxa 950 literature sources ~ 20,000 records semantically described terms current aim: data mobilisation

trait selection

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

trait selection

trait selection 21 17 9 adult traits reproductive traits larval traits 47 traits, 252 modalities ca. 5 traits “unsuitable”

problems encountered “Unsuitable” traits ● Trait not applicable for polychaetes: “migration” → there is no significant migration in polychaetes

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..., ….”

problems encountered Modalities too specialised

problems encountered Modalities too specialised

problems encountered Modalities too specialised

problems encountered Modalities too specialised needs hierarchy

problems encountered Traits with “endless” modalities

problems encountered Traits with “endless” modalities

problems encountered Traits with “endless” modalities

problems encountered Overlap / Correlation of traits & modalities

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

If I could do it again...

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

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