Zur Biotransformation des 1-Äthinylcyclohexylallophanats-(1)

The Science of Nature -     

Effects of landscape homogeneity on starling roost distribution

The possible effects of landscape structure on starling roost distribution were investigated in western France using GIS analysis at different radii (2, 4, 8 and 10 km). Composition (11 land use classes) and configuration (patch size, diversity index) of the landscapes surrounding 97 roost sites used by starlings from 1981 to 2002 and surrounding 50 random points not used as roost sites were compared. Significant results suggested that starling roosts were established preferentially in the centre of an agricultural landscape where large units of pastures and arable land predominated and where natural areas were lacking both in large patches (forests or wetland classes) and in small patches such as woods in the mixed land class. A varied farmland landscape with natural areas and small patches should be promoted to limit the starling damage in wintering regions and also to favour their reproduction in regions where it has declined.     

英国的人造伊甸园--现代设计改变荒废矿坑

伊甸园引来370万观众 不占用耕地资源,在寸草不生的荒废矿坑建造热带植物园的现代建筑,这不是神话,而是在英国已经建成的现代新景观伊甸园。伊旬园被称为世界最大的脚手架工程,2000年正在施工时,就有50多万人慕名前往观看这个新概念建筑,未及开放,投资人便获得了150万英镑票房收入。最初设计时估算每年有大约150万游客到伊甸园,投资人