March 31 2010

12:00 LSB 2320

Greg Rouse
Scripps Institution of Oceanography, UCSD

Queens of decay and their dwarf male harems: Osedax boneworms and whalefalls


Osedax is a recently discovered group of annelid worms where the females, with a little
help from endosymbiotic bacteria called Oceanospirillales, feed on the bones of whales
and other mammals. Osedax males are dwarfs that resemble trochophore larvae.
Females can have large “harems” (up to 600 males) of males in their tubes. The known
diversity of Osedax species is rapidly increasing and the first evidence of Osedax on
fossil whalebones has just been discovered. I will discuss what we know about the
biology, life history and phylogeny of this extraordinary group of annelids.











































































































































































































































































































































































































































































































































































































this is idtest: