We highlight the increase in the number of diatom genera being described, and suggest that their description be based on the concept of monophyly. That is, a new genus will contain the ancestor and all its descendants. Past criteria or guidance on how to circumscribe genera are reviewed and discussed, with conceptual and actual exemplars presented. While there is an increase in the rate of genu...

Salinities in some normally-closed estuaries in the central south coast of Western Australia are now frequently becoming highly elevated. This is due to: (1) high evaporation rates in water volumes that, by summer, are already low as a result of atypically dry winters; and (2) increased salt run-o¡ following vegetation clearing in the catchments. A few black bream (Acanthopagrus butcheri) died ...

Parasitoid-induced mortality of house fly, Musca domestica L., pupae and parasitoid progeny emergence by four species of pteromalid parasitoids, Muscidifurax raptor Girault & Sanders, M.zaraptor Kogan & Legner, Spalangia cameroni Perkins and S.endius Walker, were determined for a 24 h exposure period using parasitoid: host ratios ranging from 1:2 to 1:50. When the number of parasitoids was held...

Die Fachtagung soll dazu dienen die Kommunikation und Kooperation zwischen den an der Kognitionswissenschaft beteiligten Fachdisziplinen zu fördern und zu unterstützen und bietet deutschsprachigen Kognitionsforschern die beste Gelegenheit, über disziplinäre Grenze hinweg Anregungen auszutauschen und die Zusammenarbeit anzustoßen. Die Tagung 2008 steht unter dem Motto „Von den kognitionswissensc...