behavior as an evolutionary/cladistic character
kuento at kuhub.cc.ukans.edu
kuento at kuhub.cc.ukans.edu
Sun Mar 31 11:02:51 EST 1991
Behavior as a Cladistic Character
I have been spending a good deal of time giving thought to the above
problem. Exactly how useful is behavior in cladistics? Ernst Mayr
has spent a good deal of time waxing positive about the utility of
behavior (as well as morphology, physiology, etc.) in the production
of phylogenies, so as a result I assume that behavior is/has been a
valid character for those who subscribe to evolutionary taxonomy.
Numerical pheneticists have dismissed it, relying exclusively upon
morphology, as have cladists. But, in light of all of the (perpetual)
self-analysis occuring in theoretical cladistics, I think that
behavior has been given short shrift in cladistics.
Possible problems I've been able to come up with:
1) How far should you atomize the character, or, what exactly
is the base node of a behavior?
2) What is a character? Should it be something that is
completely novel for that state or should we use context-dependent
characters?
3) Since apomorphic characters are the base of cladistics, how
can we tell homologies from analogies?
Are there others that I haven't been able to think of?
Also if you want to suggest any good references concerning behavior in
cladistics, please do so.
Thanks
Jim D-B
--
------(please include "JDB" in subj header of mail to this user)------
Jim Danoff-Burg (Snow Museum, Univ. of Kansas, Lawrence, KS 66045)
Bitnet: KUENTO at UKANVAX "Myrmecophiles-R-Us"
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