On the relationship between sample plot size and beta diversity in boreal coniferous forests |
| |
Authors: | Rune H Økland Odd Eilertsen Tonje Økland |
| |
Institution: | (1) Botanical Garden and Museum, University of Oslo, Trondheimsveien 23B, N-0562 Oslo 5, Norway;(2) Norwegian Institute of Land Inventory, P.O. Box 115, N-1430 Ås, Norway |
| |
Abstract: | Nested sample plots of three sizes (16, 1, and 1/16 sq. m) from three different studies of Norwegian coniferous forests have been subjected to DCA ordination using the same choice of options. At each sample plot size, species quantities are recorded as frequency in 16 subplots. Beta diversity, measured as length of the first DCA axis, invariably increased upon lowering of sample plot size. The same applied to the eigenvalues of the axes. This is explained as a consequence of the weakening of structure in the data matrices when the fine-grained patterns of the vegetation are emphasized. |
| |
Keywords: | Compositional turnover Detrended correspondence analysis Norway Plot size |
本文献已被 SpringerLink 等数据库收录! |
|