Fig. 2
TWINSPAN and CCA from a one-hectare natural forest plot in the Lienhuachih area of central Taiwan. (a) TWINSPAN identified four fern groups: DIPLDO (â–ˇ), DIPLAP (â–ł), BLECOR (â—‹), and ANGILY (â—Ź). (b) The figure of the first two axes from the CCA; the words beside the lines represent environmental and biological factors, and the direction indicates the trend in which the value increases. (c) The same analysis as in b, with the letters representing the fern species (see Table 1).
