You may want to take a look at this paper: Baur & Baur. 1990. Are roads barriers to dispersal in land snail Arianta arbustorum? Can. J. Zool. 68:613. Aydin snailstales.blogspot.com On Fri, 15 Jun 2007 10:26:46 -0400, David Kirsh <[log in to unmask]> wrote: >If a car runs over a snail, will the car be slowed down...or swerve? (Maybe a driver charged with reckless driving could use the snail-in-the- tire defense). > >Seriously, with all the roads and highways criss-crossing the land, I've wondered what effects this would have on various animal populations. A major interstate would create a fairly insurmountable barrier to the free- flow of genetic information within species. Would we see forms attributable to a location east or west of I-95? > >David Kirsh >Durham, NC > ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------