Contains the keyword 351
Letter and Response--Biodiversity and ecosystem functioning: effects of the loss of salamander species richness. Proc. Natl. Acad. Sci. USA. 2009;106:E48.
Colloquium paper: are we in the midst of the sixth mass extinction? A view from the world of amphibians. Proceedings of the National Academy of Sciences of the United States of America. 2008;105 Suppl :11466-73. Abstract
