The influence of management history and habitat on plant species richness in a rural hemiboreal landscape, Sweden

被引:172
作者
Cousins, SAO [1 ]
Eriksson, O
机构
[1] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[2] Stockholm Univ, Dept Bot, SE-10691 Stockholm, Sweden
关键词
alpha diversity; beta diversity; habitat history; land use; physical properties; plant species richness;
D O I
10.1023/A:1021400513256
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We explored patterns of plant species richness at different spatial scales in 14 habitats in a Swedish rural landscape. Effects of physical conditions, and relationships between species richness and management history reaching back to the 17 (th) century were examined, using old cadastral maps and aerial photographs. The most species-rich habitats were dry open semi- natural grasslands, midfield islets and road verges. Alpha diversity (species richness within sites) was highest in habitats on dry substrates (excluding bedrock with sparse pines) and beta diversity (species richness among sites) was highest in moist to wet habitats. Alpha and beta components of species richness tended to be inversely related among habitats with similar species richness. Management history influenced diversity patterns. Areas managed as grasslands in the 17 th and 18 th century harboured more species than areas outside the villages. We also found significant relationships between species richness and soil type. Silt proved to be the most species- rich topsoil (10- 20 cm) in addition to thin soils top of on green- or limestone bedrock. The variation in species richness due to local relief or form of the site also showed significant relationships, where flat surfaces had the highest number of species. In contrast, no significant relationship was found between species richness and aspect. Our study suggests that present- day diversity patterns are much influenced by management history, and that small habitat, e. g., road verges and midfield islets, are important for maintaining species richness.
引用
收藏
页码:517 / 529
页数:13
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