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CHARM Consortium


CHARM consortium

Species and habitats - Sepia officinalis - All ages - Preferential habitat in October modelled by Generalised Linear Modelling and its uncertainty with CGFS data

Type: datasetLicense: not specifiedCategory: environmentScale: 1 / 2500Last update: unknown
Species distribution

Modelised abundance of species or prediction uncertainty.

Data origin:

In short, models based on GLMs predict the mean response of the species to environmental factors whilst models based on RQ predict the maximal response. When GLM uses abundance data, the preferential habitat is predicted, whilst the probable habitat is predicted when GLM uses binary presence-absence data. Generalised Linear Modelling (GLM) describes and predicts the "preferential habitat", i.e. the portion of the potential habitat that is used on average over time, or, in the case of presence-absence species data, the "probable habitat", i.e. where the species may be present. RQ tends to describe potential spatial patterns or the "potential habitat" of species, i.e. all possible areas with conditions suitable for the presence or high abundance levels of a species.

Purpose: not specified

Data life cycle, according to producer:
Creation date: unknown
Update frequency: as needed
State: completed


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