As the recent commentary by Daniel Sarewitz in Nature (http://www.nature.com/news/beware-the- creeping-cracks-of-bias-1.10600?WT.ec_id=NEWS-20120515) titled "Beware the creeping cracks of bias" attracted many comments here and elsewhere on the web, I invited Matthew Chew to write an essay on this very topic on the Journal of Ecology blog. Read it here: http://jecologyblog.wordpress.com/2012/05/23/the-positively-biased-life/
Cheers, Scott Chamberlain Journal of Ecology - Blog Editor
