Links to four reports in http://saltspringnews.com/index.php?name=News&file=article&sid=16047. Perhaps the most comprehensive is "Please Lord, not the bees" by Peter Dearman. Excerpt: "Bees seem to desert their hive or forget to return home from their foraging runs. The hive population dwindles and then collapses once there are too few bees to maintain it. Typically, no dead bee carcasses lie in or around the afflicted hive, although the queen and a few attendants may remain. The defect, whatever it is, afflicts the adult bee. Larvae continue to develop normally, even as a hive is in the midst of collapse. Stricken colonies may appear normal, as seen from the outside, but when beekeepers look inside the hive box, they find a small number of mature bees caring for a large number of younger and developing bees that remain. Normally, only the oldest bees go out foraging for nectar and pollen, while younger workers act as nurse bees caring for the larvae and cleaning the comb. A healthy hive in mid-summer has between 40,000 and 80,000 bees. Perhaps the most ominous thing about CCD, and one of its most distinguishing characteristics, is that bees and other animals living nearby refrain from raiding the honey and pollen stored away in the dead hive. In previously observed cases of hive collapse (and it is certainly not a rare occurrence) these energy stores are quickly stolen. But with CCD the invasion of hive pests such as the wax moth and small hive beetle is noticeably delayed. ...".
See also organic bee farmer Sharon Labchuk's comments on the honeycomb size linked in the same article.
