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Species distribution modelling—Effect of design and sample size of pseudo-absence observations
We explored the effect of varying pseudo-absence data in species distribution modelling using empirical data for four real species and simulated data for two imaginary species. In all analyses we
Distribution and spread of the invasive slug Arion vulgaris Moquin- Tandon in Norway
The present distribution of the invasive slug Arion vulgaris Moquin-Tandon was studied in Norway, finding it covers most of coastal southern Norway while it shows a patchy distribution in northern Norway.
Sampling bias in presence-only data used for species distribution modelling: theory and methods for detecting sample bias and its effects on models
Abstract This paper provides a theoretical understanding of sampling bias in presence-only data in the context of species distribution modelling. This understanding forms the basis for two integrated
How much is enough? Influence of number of presence observations on the performance of species distribution models
Abstract Species distribution modeling (SDM) can be useful for many applied purposes, e.g., mapping and monitoring of rare and endangered species. Sparse presence data are a recurrent, major obstacle