Date ( Publication )

2014-09-01T15:08:00Z

Presentation form

mapDigital Digital map

Status

completed Completed

Maintenance and update frequency

notPlanned Not planned

Name

ESRI Shapefile

Version

1.0

Use constraints

limitation not listed limitation not listed

Other constraints

This shapefile was provided by MAREA Consortium (framework contract MARE/2009/05 - Lot 2 (MEDISEH)) to be used inside ADRIPLAN Project.

The geographical information is provided "as it is", and no warranty of any kind (express, implicit) is offered as to the information's accuracy. The information provided does not imply any opinion of the developers concerning the legal status of any country, territory or area, or concerning the delimitation of its frontiers or boundaries. The data cannot be used for legal, commercial (e.g. exploration of natural resources, consultancy work) or for navigational purposes. It is clarified that the raw data collected or provided to the consortium for the purposes of MEDISEH, are not allowed to be redistributed or provided to third parties (under any format e.g. GIS Shape files) for any reason, without the permission of the original data provider. Fisheries data collected within the Data Collection Framework cannot be redistributed for any reason.

To access project's meta-analysis data (i.e. model output), please send a request to MEDISEH scientific coordinator and to the MAREA scientific coordinator (request form: http://mareaproject.net/medviewer/registration/register/ ). Please note that the request will also be forwarded to DG-MARE, for final approval by the European Commission Services.

It has also to be recalled the provisions of Article II.10.3 of the Framework Contract: "Any distribution or publication of information relating to the Contract by the Contractor shall require prior written authorization from the Commission and shall mention the amount paid by the Union. It shall state that the opinions expressed are those of the Contractor only and do not represent the Commission's official position".

The project's final report can be found at http://mareaproject.net/contracts/5/reporting/ (Mediterranean Sensitive Habitats (MEDISEH) (2013). Final report. Edited by M. Giannoulaki, A. Belluscio, P. Panayotidis, S. Fraschetti, M. Scardi, F. Colloca, C. Smith, V. Valavanis, M.T. Spedicato. DG MARE Specific Contract SI2.600741, Final Report, 557 p. Heraklion (Greece): Hellenic Centre for Marine Research.)

Spatial representation type

vector Vector

Metadata language

eng

Character set

utf8 UTF8

Topic category

• msp_environmentEcosystems

Supplemental Information

The dataset of Posidonia oceanica distribution across the Mediterranean derived from the compilation of published and unpublished information.

Data were provided in the form of polygon and point shapefiles.

P. oceanica modeling was carried out taking into account both presence and absence records and therefore the range of potentially useful modeling methods was very wide. The type of habitat modeling undertaken was of the “predictive” type, with a whole variety of variables, beyond the typical environmental/physical ones used to predict species occurrence.

Preliminary tests were performed on a subset of data in order to select the best approach among Classification Trees (both using CRT and CHAID algorithms), Artificial Neural Networks (multilayer perceptions) and Random Forests. While all the above mentioned methods provided acceptable results, Random Forests performed significantly better than other methods.

The overall results of the Random Forest model were validated on the basis of the comparisons between model predictions and known records in nine test areas that accounted for about 7% of the available data (i.e. about 50,000 pixels).

Reference system identifier

EPSG / 4326 / 6.11

OnLine resource

Online link to the 'Posidonia oceanica (Neptune grass) ' description on GeoNode  

Online link to the 'Posidonia oceanica (Neptune grass) ' description on GeoNode

OnLine resource

posshp_0.png  

Posidonia oceanica (Neptune grass) (Legend Format)

OnLine resource

posshp_0.png  

Posidonia oceanica (Neptune grass) (Thumbnail Format)

OnLine resource

posshp_0.png  

Posidonia oceanica (Neptune grass) (Remote Thumbnail Format)

OnLine resource

posshp_0.tiles  

Posidonia oceanica (Neptune grass) (Tiles Format)

OnLine resource

posshp_0.kml  

Posidonia oceanica (Neptune grass) (View in Google Earth Format)

OnLine resource

posshp_0.kml  

Posidonia oceanica (Neptune grass) (KML Format)

OnLine resource

posshp_0.json  

Posidonia oceanica (Neptune grass) (GeoJSON Format)

OnLine resource

posshp_0.excel  

Posidonia oceanica (Neptune grass) (Excel Format)

OnLine resource

posshp_0.csv  

Posidonia oceanica (Neptune grass) (CSV Format)

OnLine resource

posshp_0.gml  

Posidonia oceanica (Neptune grass) (GML 3.1.1 Format)

OnLine resource

posshp_0.gml  

Posidonia oceanica (Neptune grass) (GML 2.0 Format)

OnLine resource

posshp_0.zip  

Posidonia oceanica (Neptune grass) (Zipped Shapefile Format)

OnLine resource

posshp_0.png  

Posidonia oceanica (Neptune grass) (PNG Format)

OnLine resource

posshp_0.pdf  

Posidonia oceanica (Neptune grass) (PDF Format)

OnLine resource

posshp_0.jpg  

Posidonia oceanica (Neptune grass) (JPEG Format)

OnLine resource

OGC:WFS geonode Service - Provides Layer: Posidonia oceanica (Neptune grass)  

OGC WFS: geonode Service Root Endpoint. This service contains the Posidonia oceanica (Neptune grass) layer.

OnLine resource

OGC:WMS geonode Service - Provides Layer: Posidonia oceanica (Neptune grass)  

OGC WMS: geonode Service Root Endpoint. This service contains the Posidonia oceanica (Neptune grass) layer.

Hierarchy level

dataset Dataset

Metadata

File identifier

1342b801-4b28-4a08-8708-79448838ad29   XML

Metadata language

eng

Character set

utf8 UTF8

Hierarchy level

dataset Dataset

Date stamp

2015-05-06T22:28:05Z

Metadata standard name

ISO 19115:2003 - Geographic information - Metadata

Metadata standard version

ISO 19115:2003