123607.fig.003a
(a)
123607.fig.003b
(b)
123607.fig.003c
(c)
123607.fig.003d
(d)
123607.fig.003e
(e)
123607.fig.003f
(f)
Figure 3: Species-abundance distributions of Lake Kinneret phytoplankton. Histograms of species abundance, representing species-number distribution according to octaves (i.e., cell abundance duplications), for 2 periods (a, b). (c, d) Rank-abundance distributions of species for the stable and the following disturbed periods. (e) The 5-year (see plates (a, b)) average histograms of species abundance. (f) Phytoplankton disturbance index, representing the average value of 5 leading abundances (see the Methods), in comparison with the index level for 1985.