For 35 years, butterflies of the Sacramento Valley and the Sierra Nevada have been Arthur Shapiro's obsession.
Shapiro, a UC Davis professor of evolution and ecology, has visited the same 11 observation sites from Suisun Marsh to high mountain valleys since 1972 -- most of them every two weeks.
He has recorded more than 83,000 sightings of 159 species, representing every color of the rainbow. Along the way, new butterflies have come on the scene. Others apparently have blinked out.
Shapiro recorded all he saw. And it's all now available to the public in a massive database of regional butterfly activity that is rivaled by only one other resource worldwide.
Read more at: http://www.sacbee.com/101/story/138397.html