[Taxacom] Help on a literature reference

Thomas G. Lammers lammers at uwosh.edu
Mon Mar 17 10:02:54 CDT 2008

At 09:32 AM 3/17/2008, Jody Haynes wrote:
>That is an interesting concept. Out of curiosity, how does one go about
>estimating the overall speciation rate of one region compared to another,
>and is this actual or potential speciation?

I haven't seen the article in question.  I suspect they are thinking that 
there's two ways for a region to have high diversity: lots of lineages, or 
a few lineages that have proliferated there.  For example, the Lobelioideae 
in Hawaii are well over 100 species but represent a single clade.  That 
would "count for more" that 100 species representing 50 or more independent 

Thomas G. Lammers, Ph.D.

Associate Professor and Curator of the Herbarium (OSH)
Department of Biology and Microbiology
University of Wisconsin Oshkosh
Oshkosh, Wisconsin 54901-8640 USA

e-mail:       lammers at uwosh.edu
phone:      920-424-1002
fax:           920-424-1101

Plant systematics; classification, nomenclature, evolution, and 
biogeography of the Campanulaceae s. lat.

"Today's mighty oak is yesterday's nut that stood his ground."
                                                               -- Anonymous

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