These fishes are scattered in many of the waters in Trinidad and some coastal waters along Northern South America. But they do not always occur together. This site reflects the research of several scientists, but especially Dr. John Endler, and was evidentally a part of a PBS program on evolution.
I'm going to have to keep an eye out for that program at the video rental place. If it is in the educational section, it's often a freebie!
If you have read or heard of the book by Ann Houde on mate selection, you probably have a pretty good idea of what will happen with these wild type fishes.
Make your predictions. Then go to
http://www.pbs.org/wgbh/evolution/sex/guppy/gallery.html
Click on the sequence of links at the top or bottom of the page. Start with Intro and continue through the series. Then check out the gallery.
Check out all the photos and sections. When you get to the predator photos, please note that the Rivulus (hartii) and Blue Acara have been switched.
I'd like to thank GuppyMonty for his recent log. It was while "googling" for a response to an observation of his that I ran across this PBS site.
Most of us visit the GL site because we enjoy keeping domestic guppies and don't mind participating in an on-line forum. Still it is interesting to see how guppies are used in various kinds of research.
All the best,
uncle scott
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