Via the Geo: Geography and Environment blog, Jessica Conroy (University of Illinois Urbana-Champaign, USA) on seabirds, climate change, El Niño and the Galápagos.

Source: Learning from guano: In search of a paleo-seabird proxy

Geo: Geography and Environment is a fully open access journal which means that papers can be read, free of charge, by anyone with an internet connection immediately after they are published. Geo is a Royal Geographical Society (with IBG) and Wiley journal.