John Grehan jrg13 at PSU.EDU
Thu Jul 18 13:34:42 CDT 2002

>Dear all,
>May anyone explain me the exact meaning of a 'nestedness distribution of

An example of nested distributions is found with tracks that do not repeat
every locality, but form the same sequence of track links within a larger
pattern so they 'nest' within the larger pattern. Another form of 'nesting'
occurs with tracks that form concentric rings. An example of the latter is
illustrated in Craw et al (1999).

John Grehan

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