Aboriginal Australian mental health during the first 100 years of colonization, 1788-1888: a historical review of nineteenth-century documents.

Past histories charting interactions between British healthcare and Aboriginal Australians have tended to be dominated by broad histological themes such as invasion and colonization. While such descriptions have been vital to modernization and truth telling in Australian historical discourse, this paper investigates the nineteenth century through the modern cultural lens of mental health. We reviewed primary documents, including colonial diaries, church sermons, newspaper articles, medical and burial records, letters, government documents, conference speeches and anthropological journals. Findings revealed six overlapping fields which applied British ideas about mental health to Aboriginal Australians during the nineteenth century. They included military invasion, religion, law, psychological systems, lunatic asylums, and anthropology.

Evolutionary history underlies plant physiological responses to global change since the last glacial maximum.

Assessing family- and species-level variation in physiological responses to global change across geologic time is critical for understanding factors that underlie changes in species distributions and community composition. Here, we used stable carbon isotopes, leaf nitrogen content and stomatal measurements to assess changes in leaf-level physiology in a mixed conifer community that underwent significant changes in composition since the last glacial maximum (LGM) (21 kyr BP). Our results indicate that most plant taxa decreased stomatal conductance and/or maximum photosynthetic capacity in response to changing conditions since the LGM. However, plant families and species differed in the timing and magnitude of these physiological responses, and responses were more similar within families than within co-occurring species assemblages. This suggests that adaptation at the level of leaf physiology may not be the main determinant of shifts in community composition, and that plant evolutionary history may drive physiological adaptation to global change over recent geologic time.