LifeWatch ERIC Metadata Catalogue
Crustaceans Workflow - Functional biogeography of invaders: the case of two widely distributed omnivorous crustaceans
Biological invasions are to date acknowledged as significant environmental and economic threats, yet the identification of key ecological traits determining species invasiveness has remained elusive. One unappreciated source of variation concerns dietary flexibility and the ability to shift trophic position within invaded food webs. Trophic plasticity may greatly influence invasion success as it negates resource availability as a functional constraint for introduced individuals; in addition, the impact of an invader might increase with its dietary plasticity since a greater proportion of the resident assemblage of species and multiple trophic levels are affected. The validation case will focus on two invasive crustaceans widely distributed in marine and freshwater European waters, i.e., the Atlantic blue crab Callinectes sapidus and the Louisiana crayfish Procambarus clarkii.
Key questions that will be addressed are:
a) does the trophic position of C. sapidus vary between invaded Mediterranean and native west Atlantic habitats, testifying the occurrence of significant post-invasion shifts in dietary habits?
b) does the trophic position of P. clarkii vary in invaded habitats, and which are the main ecological factors involved?
c) do bioclimatic drivers influence broad‐scale spatial patterns of variation in the trophic position of C. sapidus and P. clarkii?
Default
Identification
- Date ( Publication )
- 2021-02-25
- Date ( Creation )
- 2019-07-04
- Status
- Under development / Pre operational
- Version
- 1.0
- Access constraints
- Copyright
- OnLine resource
- Info page ( WWW:LINK-1.0-http--link )
- Service Name
- Crustaceans WoRMS Taxonomic Checker
- Service Description
- A service that aims at verifying the species names (performing the taxonomy check) by using the input file SIA.csv. It represents the Step 1.
- Service Reference (id)
- https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/2c4fb61a-38ad-4ec7-a710-ef0d9c2b381e
- Service Name
- Trophic Position Analyzer
- Service Description
-
A service that aims at analyzing the trophic position of the “invader” by using a Bayesian model to estimate the NA values of the trophic position that corresponds to the column 13 “TP” of the ""Tax_validated_SIA.csv” file by means of a loop that allows extracting data of single populations.
It represents the Step 2.
- Service Reference (id)
- https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/cfa5a24b-5912-48af-8244-bdf301d77b41
- Service Name
- Geographic Checker
- Service Description
-
This service aims at creating a vector from the coordinates in the “Pop_troph_SIA.csv” file and convert it into a shapefile.
It represents the Step 3.1,
- Service Reference (id)
- https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/34400733-f748-4012-a5ca-f68556d52638
- Service Name
- Spatial Viewer and Coordinates Verifier
- Service Description
-
A service that aims at verifying the coordinates (latitude and longitude in column 3 and 4 of file “Pop_trop_SIA.csv”) match with the location (“country” and “location” in column 1 and 2 of file “Pop_troph_SIA.csv”) using the “SIAShapefile.shp”. This is very important because these geographic coordinates will be used in other services to extract and retrieve environmental data on the location of the species observation/occurrence. So scientists need to ensure these coordinates are correct.
It represents the Step 3.2.
- Service Reference (id)
- https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/07946b18-0296-44fe-b9ea-ed06d277f456
- Service Name
- Environmental Data Extractor
- Service Description
- This service aims to create a dataset of environmental predictors linked to SIA’s coordinates by exploiting oceanographic and bioclimatic raster layers. It extracts Enviromental Data and represents the Step 4.
- Service Reference (id)
- https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/c09e4ca7-0b57-4ea0-a57e-215d2c0dc805
- Service Name
- Trophic Positions Modeler
- Service Description
-
This service aims at modeling trophic positions as a function of environmental drivers (e.g., through GAMs, etc.) by using the "Bioclim_predic.csv" file.
It represents the Step 5.
