Read it and weep

Here are links to abstracts for a few interesting articles that have appeared recently in the biological journals:

• "On the pattern of discovery of introduced species," Costello and Solow, Proceedings of the National Academy of Sciences
• "Seedling competition between native Populus deltoides (Salicaceae) and exotic Tamarix ramosissima (Tamaricaceae) across water regimes and substrate types," Sher and Marshall, American Journal of Botany
• "Invasive aliens and sampling bias," Simons, Ecology Letters