Diplosoma Macdonald 1859 (Ascidiacea): proposed validation under the plenary powers. Z.N.(S.) 1766

Variation under domestication in plants: 1859 and today.

Charles Darwin began The Origin of Species with a chapter entitled variation under domestication, which encapsulated decades of his research on a diverse array of animal and plant domesticated species. Variation in these species compared with that in their wild relatives, their origins and their selection by humans, formed a paradigm for his theory of the evolutionary origin of species by means...

Photosymbiotic ascidians in Singapore: turbid waters may reduce living space

The photosymbiotic ascidian fauna at Changi Beach, Pulau Semakau, Sentosa and St. John's Island, Singapore were surveyed. A total of five species, Diplosoma simile, Lissoclinum bistratum, Lissoclinum punctatum, Lissoclinum timorense and Trididemnum cyclops, were recorded, with Lissoclinum timorense and Trididemnum cyclops being newly recorded in Singapore. However, no photosymbiotic species wer...

Gina Macdonald and Andrew Macdonald

Timothy Corrigan has argued that the relationship between the two media of film and literature has “a history of ambivalence, confrontation, and mutual dependence,”1 succinctly summing up the range of critical reaction to film productions of Jane Austen novels. The “mutual dependence” is evident: Austen films have brought her novels a far wider readership than she herself could have imagined. U...

Global Diversity of Ascidiacea

The class Ascidiacea presents fundamental opportunities for research in the fields of development, evolution, ecology, natural products and more. This review provides a comprehensive overview of the current knowledge regarding the global biodiversity of the class Ascidiacea, focusing in their taxonomy, main regions of biodiversity, and distribution patterns. Based on analysis of the literature ...

Plenary Lectures