Olatz Aizpurua

Aranzadi Science Society · Department Ornithology

Species distribution models analyse how species use different types of habitats. Their spatial predictions are often used to prioritize areas for conservation. Individuals may, however , prefer settling in habitat types of low quality compared to other available habitats. This ecological trap phenomenon is usually studied in a small number of habit...

Measures of fitness such as reproductive performance are considered reliable indicators of habitat quality for a species. Such measures are, however, only available in a restricted number of sites, which prevents them from being used to quantify habitat quality across landscapes or regions. Alternatively, species presence records can be used along...

Measures of fitness such as reproductive performance are considered reliable indicators of habitat quality for a species. Such measures are, however, only available in a restricted number of sites, which prevents them from being used to quantify habitat quality across landscapes or regions. Alternatively, species presence records can be used along...

Up-to-date knowledge on species distribution is needed for efficient biodiversity conservation and management decision-making. Implementing efficient sampling strategies to identify previously unknown locations of species of conservation-concern is therefore a key challenge. Both structured expert judgement and habitat suitability models may help t...

Long-term biodiversity monitoring data are mainly used to estimate changes in species occupancy or abundance over time, but they may also be incorporated into predictive models to document species distributions in space. Although changes in occupancy or abundance may be estimated from a relatively limited number of sampling units, small sample size...

Table A1. Environmental variables calculated in the secondary sampling units and used in the modelling procedures

Table S2. Environmental variables calculated in the 1-km resolution squares and used to identify the environmental strata in Luxembourg

Table S1. Red-backed shrike territories recorded during the period 2000–2009 in Luxembourg and used as a common source of basic information to design the expertbased and model-based sampling strategies. Geographical coordinates (XY) are given using the Luxembourg 1930 Gauss coordinate system. The spatial precision of each record is provided in mete...

Appendix S1. Further explanation about expert selection and qualification