cryptic and sibling species

Ken Kinman kinman at HOTMAIL.COM
Sun Oct 17 15:17:30 CDT 1999

     Please correct me if I am wrong, but are sibling species pretty much
equivalent to "cryptic species" (closely related, but separate species which
are morphologically almost identical, but distinguishable by molecular and
other means---such as differences in bird songs, which I believe led to the
discovery of some avian sibling species).
     It seems like zoologists tend to prefer "sibling species" and botanists
tend to prefer "cryptic species".  If so, does this have anything to do with
"sibling" varieties (if that is the correct term) that plant breeders are
fond of crossing with each other?   I guess I prefer "sibling species"
because I am a zoologist, and I think we often tend to use the term "cryptic
species" to refer to those which are well camouflaged to blend in with the
environment.   Just curious how others on the list use these terms.
                        ---------Ken Kinman

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