The impact of abandoned/disused marble quarries on avifauna in the anticline of Estremoz, Portugal: does quarrying add to landscape biodiversity?

Although the extractive operations of quarrying are often considered environmental threats, there is some evidence that abandoned quarries may have a significant positive impact on biodiversity by enhancing habitat quality for several species. In Estremoz Anticlinal, SE Portugal, many of the existing marble quarries have been inactive for decades and were abandoned without any restoration project in progress. The impact of quarry abandonment on avifauna diversity was assessed relative to reference conditions using adjacent rural fields as control areas. No significant differences were found in within-community diversity (alpha diversity) between abandoned quarries and reference sites. However, several dissimilarity indices showed a clear divergence in species composition between abandoned quarries and reference sites. Furthermore, statistically significant differences in species compositions were found between quarries abandoned for different periods. Over time, species composition becomes more similar to that observed in reference sites, reflecting ecological succession and landscape resilience to quarrying. Nevertheless, the studied quarrying landscape exhibited higher gamma and beta diversity than the former traditional landscape; thus, our results suggest that abandoned quarries, rather than damaging and destroying niches, can promote new ecological niches and significantly diversify rural landscapes.

The impact of abandoned/disused marble quarries on avifauna in the anticline of Estremoz, Portugal: does quarrying add to landscape biodiversity?

Although the extractive operations of quarrying are often considered environmental threats, there is some evidence that abandoned quarries may have a significant positive impact on biodiversity by enhancing habitat quality for several species. In Estremoz Anticlinal, SE Portugal, many of the existing marble quarries have been inactive for decades and were abandoned without any restoration project in progress. The impact of quarry abandonment on avifauna diversity was assessed relative to reference conditions using adjacent rural fields as control areas. No significant differences were found in within-community diversity (alpha diversity) between abandoned quarries and reference sites. However, several dissimilarity indices showed a clear divergence in species composition between abandoned quarries and reference sites. Furthermore, statistically significant differences in species compositions were found between quarries abandoned for different periods. Over time, species composition becomes more similar to that observed in reference sites, reflecting ecological succession and landscape resilience to quarrying. Nevertheless, the studied quarrying landscape exhibited higher gamma and beta diversity than the former traditional landscape; thus, our results suggest that abandoned quarries, rather than damaging and destroying niches, can promote new ecological niches and significantly diversify rural landscapes.

Living Landscape: The European Landscape Convention in Research Perspective

This special issue reports some of the highlights of the conference Living Landscape – The European Landscape Convention in Research Perspective, organised jointly by UNISCAPE and Landscape Europe (UNISCAPE, 2010). Starting questions for this conference were: what has science contributed to the implementation of the European Landscape Convention (CoE, 2000) and what are the topics for the future of European landscape? The 10th anniversary of the Florence Convention in October 2010 was an opportunity to discuss the merits of landscape science in integrated research of a rapidly changing environment. Many interdisciplinary contributions presented referred to the Landscape Convention. The conference focused on cutting-edge research results at the crossroads of sciences and humanities, design and empiricism. Not by chance, the conference was also the occasion to launch a new ESF-COST Science-Policy Briefing on Landscape Research (Bloemers, Daniels, Fairclough, Pedroli, & Stiles, 2010 Bloemers, T., Daniels, S., Fairclough, G., Pedroli, B., & Stiles, R. (Eds.) (2010) Landscape in a changing world. Bridging Divides, integrating disciplines, serving society. Science Policy Briefing nr 41. Strasbourg and Brussels: ESF-COST. ): ‘Landscape in a Changing World – Bridging Divides, Integrating Disciplines, Serving Society’. It emphasises the importance of four interdisciplinary themes: Universal commons: securing landscape as a common good. Roots and routes: coming to terms with mobility and evolving lifestyles. Reactions and resilience: long-term landscape transformations. Road maps: landscape as baseline and context for future change. The papers in this special issue largely reflect these themes.