Found this on Anthropik’s rss: http://news.mongabay.com/2008/0915-kone_tcs.html
The excerpts that I think are most important (all emphasis mine):
Because monkeys are key seed dispersal agents, the results suggest that [b]primate conservation may sustain the persistence of plant resources[/b]
"Indeed, the local [b]extinction[/b] of frugivorous [b]primates is predicted to have deleterious consequences for forest regeneration[/b] and/or tree species community composition."
"Results of this study suggest that maintaining populations of monkeys is important not only for forest regeneration..."
Just thought this was interesting in light of humans actually benefitting ecologies not just benefitting from ecologies. :o