Schöb, Christian და Kammer, Peter და Kikvidze, Zaal და Choler, Philippe და Veit, Heinz
Changes in species composition in alpine snowbeds with climate change inferred from small-scale spatial patterns.
Web Ecology.
ISSN 1399-1183
რეზიუმე
Alpine snowbeds are characterised by a very short growing season. However, the length of the snow-free period is increasingly prolonged due to climate change, so that snowbeds become susceptible to invasions from neighbouring alpine meadow communities. We hypothesised that spatial distribution of species generated by plant interactions may indicate whether snowbed species will coexist with or will be out-competed by invading alpine species – spatial aggregation or segregation will point to coexistence or competitive exclusion, respectively. We tested this hypothesis in snowbeds of the Swiss Alps using the variance ratio statistics. We focused on the relationships between dominant snowbed species, subordinate snowbed species, and potentially invading alpine grassland species. Subordinate snowbed species were generally spatially aggregated with each other, but were segregated from alpine grassland species.
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Changes in species composition in alpine snowbeds with climate change inferred from small-scale spatial patterns. (deposited 23 იანვარი 2014 19:22)
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