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作者

来源

LANDSCAPE AND URBAN PLANNING,Vol.181,P.1-9

语言

英文

关键字

Future land-use change; Niche-based predictive models; Phoenicurus phoenicurus; Switzerland; Urban green spaces; SPECIES DISTRIBUTION MODELS; REDSTART PHOENICURUS-PHOENICURUS; GREEN-SPACE; BIODIVERSITY CONSERVATION; AGRICULTURAL INTENSIFICATION; FUNCTIONA

作者单位

[Droz, Boris] Univ Lausanne, Fac Geosci & Environm, CH-1015 Lausanne, Switzerland. [Arnoux, Robin] Nord 111, CH-2300 La Chaux De Fonds, Switzerland. [Bohnenstengel, Thierry] Swiss Biol Records Ctr, Passage Mazimilien de Meuron 6, CH-2000 Neuchatel, Switzerland. [Laesser, Jacques; Spaar, Reto] Swiss Ornithol Inst, CH-6204 Sempach, Switzerland. [Aye, Raffael] BirdLife Switzerland, Wiedingstr 78, CH-8036 Zurich, Switzerland. [Randin, Christophe F.] Univ Lausanne, Dept Ecol & Evolut, CH-1015 Lausanne, Switzerland. [Randin, Christophe F.] Swiss Fed Res Inst WSL, Landscape Dynam, CH-8903 Birmensdorf, Switzerland. Droz, B (reprint author), Univ Strasbourg, CNRS, 1 Rue Blessig, F-67000 Strasbourg, France. E-Mail: bodroz@bluewin.ch; thierry.bohnenstengel@unine.ch; jacques.Laesser@vogelwarte.ch; reto.spaar@vogelwarte.ch; raffael.aye@birdlife.ch; christophe.Randin@unil.ch

摘要

Urban sprawl has increased in Western Europe principally due to conversion of farmland areas, which has constrained remaining farmland to more intensive use. Urban densification aims to counteract urban sprawl; however, it threatens urban green spaces that act as sustainable alternative habitats for wildlife. In this study, we used the Common Redstart (Phoenicurus phoenicurus) as a model species to develop sustainable planning recommendations for urban green spaces. Using species distribution models (SDMs) in combinations with high-resolution predicting variables (2 x 2 m grid cell), we defined the suitable habitat of a Common Redstart territory in a moderately urbanized environment. We then predicted how the distribution would be affected under realistic scenarios of land-use modification (termed conservation scenario and threat scenario) in an effort to provide recommendations for urban green space planning. Tree canopy cover was the principal land-cover type in the SDMs that explained the current species distribution followed by impervious surface and short-cut lawn. In the conservation scenario where tree canopy coverage was increased we predicted an increase in optimum habitat for the Common Redstart from 7% to 27% of the study area. In contrast, under a threat scenario based on urban densification, we predicted a decrease in the optimum habitat to only 4% of the study area. The SDMs results were used to highlight the importance of the suitable areas that have a predicted potential to conserve and promote an interconnected urban green space networks to maintain urban biodiversity.