><<By evolution, I simply mean genetic change over time; this is known to
>occur. >>
>
>"Evolution by natural selection seems to me to be a wise way of
>maintaining life through varying conditions over time."
>
>Your first definition implies non-selectionist evolution. In your second
>definition, natural selection clearly means selectionist evolution. What is
>it? Non-selectionist or selectionist evolution? If it is not an either-or
>matter, what is the relation of non-selectionist evolution to natural
>selection?
I see evolution by natural selection as a subset of the biological
evolution defined in the first message. Genetic change over time could be
due to selection (natural selection, artificial selection, sexual
selection, etc.) or to "random" change (genetic drift, founder effect,
etc.)
David Campbell