Trophic Position Analyzer

A service that aims at calculating the trophic position of the consumer (i.e. invader) by using a Bayesian model and stable isotope data of one prey species used as a baseline. The service replaces the NA values of the consumer's trophic position within the column "trophicLevel” of the "SIA.csv” with the numeric value of the estimated trophic position within the output file "troph_SIA.csv". This service uses the R package tRrophicPosition v. 0.8 that is based on a powerful approach of Markov Chain Monte Carlo simulations provided by JAGS and it represents Step 1 of the Crustaceans Workflow within the Internal Joint Initiative.

Date ( Publication): 2021-02-25

Date ( Creation): 2019-07-04

Status: Under development / Pre operational

Principal investigator

Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy - Giorgio Mancinelli

Custodian

LifeWatch ERIC ICT Core - Antonio José SÁENZ-ALBANÉS

Publisher

LifeWatch ERIC Service Centre - Lucia Vaira

Principal investigator

LifeWatch ERIC ICT Core - ICT Core Group

Keywords: functional traits

Keywords: modelling

Keywords: alien invasive species

Keywords: native species

Keywords: trophic position

Keywords: Crustaceans

Keywords: IJI

Access constraints: License

Use limitation: The final license will be available soon.

Operation name: Tax_validated_SIA.csv

Web site: http://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/46df37ac-4c92-433f-a213-b50553cee4f5

Description: It is an intermediate file of the Crustaceans workflow that contains the validated SIA file by identifying the native and invasive species.

Function: Input file

Operation name: Pop_troph_SIA.csv

Web site: http://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/7677e318-d419-4838-b36d-c15e0b8eb191

Description: It is an intermediate file of the Crustaceans workflow that contains the trophic position of the invader identified in Step 1 (Crustaceans WoRMS Taxonomic Checker) of the Workflow.