Assessing regional variation in conservation value using fine-grained bird atlases
- First Online:
- Cite this article as:
- Herrando, S., Brotons, L., Guallar, S. et al. Biodivers Conserv (2010) 19: 867. doi:10.1007/s10531-009-9741-0
- 89 Downloads
In this study we developed a simple quantitative method to assist in the decision making process of the landscape planning by integrating information of species occurrence and their individual IUCN extinction risks. We applied this method in Catalonia (north-east Iberian Peninsula) using bird atlas data to create an Index of Cumulative Threat Status (ICUTS). We employed a heuristic approach derived from qualitative scores provided by 10 experts on the avifauna of the region to choose the final index among a group of candidates. This index was used to generate two maps of conservation value at 10 × 10 km resolution, one comprising all breeding bird species in the study region (219 species), and a second one with only those bird species for which fine-grained maps (500 × 500 m) were also available (182 species). In spite of the difference in the number of species included in the two 10 × 10 km maps, we found similar geographical patterns and therefore we considered that the pattern shown by the second group of species (at 500 × 500 m resolution) represented a good proxy of the whole breeding avifauna for landscape planning purposes. The approach developed in this study may be particularly helpful in landscape planning outside protected areas because of its spatial continuity, fine-grained resolution and easy interpretation.