Proportion of species first reported on each foray The fraction
of species new to each foray is shown. In the second foray more
than 40% of the species were new records. This is partially due
to a strong seasonal effect. The genus Boletus for example is
much more diverse in the December forays than the January
forays, and Hygrocybe was just the reverse. On the last two
forays the percentage of new records dropped to 31% and 18%,
respectively. This may show that we are starting to saturate the
species that we are currently able to identify, but it also may
be caused by drier weather in the second season.