Can salmonids (Oncorhynchus spp.) be identified to species using vertebral morphometrics?

Remains of anadromous Pacific salmon and trout (genus Oncorhynchus) are common in archaeological sites from California to Alaska; however, morphological similarity generally precludes species identification, limiting the range of questions that salmonid remains can address in relation to past human use and ongoing efforts in conservation biology. We developed a relatively simple, rapid, and non-destructive way to classify salmon and trout vertebrae from archaeological contexts to species using length, height and the ratio of length to height. Modern reference material was obtained from all seven anadromous Oncorhynchus species native to the west coast of North America. A minimum of ten adult Chinook (Oncorhynchus tshawytscha), chum (Oncorhynchus keta), coho (Oncorhynchus kisutch), pink (Oncorhynchus gorbuscha), and sockeye salmon (Oncorhynchus nerka) and cutthroat (Oncorhynchus clarki clarki) and steelhead trout (Oncorhynchus mykiss) were skeletonized and vertebra length and height were measured. Morphometric analyses compared species classification success based on Linear Discriminant Analysis (LDA), Classification and Regression Trees (CART), and randomForest, with CART performing the best. Classification analyses used all seven species individually, but because of considerable overlap among several species we also conducted analyses on four species groupings. We assigned Chinook salmon and cutthroat to their own groups based on their dissimilarities from each other and the other species. The remaining species were divided into two group complexes (a) chum, coho, and steelhead; and (b) pink and sockeye. When we grouped species according to similar morphology, CART overall success rates increased, ranging from 92 to 100%. Individual species with the highest successful classification rates using CART were Chinook salmon and cutthroat, from 92 to 100%, respectively. We applied our classification to an assemblage of ancient (1000–3000 year old) salmonid vertebrae from the Swiftwater Rockshelters excavations on the upper Wenatchee River in Washington State, U.S.A.     

Sediments exposed to high temperatures: reconstructing pyrotechnological processes in Late Bronze and Iron Age Strata at Tel Dor (Israel)

Many of the sediments analysed from Tel Dor (Israel) show structural alterations indicating that they were exposed to high temperatures. This observation is consistent with the abundant evidence for use of pyrotechnology from the earliest exposed Middle Bronze Age strata through the Roman period. Such structurally altered sediments may well represent one of the more widespread and durable records of pyrotechnology, and as such could be invaluable for reconstructing past human activities. The specific aims of this research are therefore to develop the means for identifying local sediments that were altered by different pyrotechnological activities and to elucidate the varying circumstances whereby sediments were exposed to high temperatures in a Late Bronze and Iron Age 1 section.     

Rights to protection and the state: the Australian Government's National Plan to reduce violence against women and children and victim's justice

Due to increased awareness and impact of domestic violence, women's safety in the domestic sphere has become a prominent problem in Australian politics. In an analysis of criminal injuries compensation (CIC) processes in WA, this paper highlights a specific aspect of national policy failure in relation to safety for women who have experienced domestic and family violence. It establishes policy impetus to acknowledge a right to protection by the state within the domestic sphere, then discusses the history and relevance of state responsibility/obligations for victims of crime compensation and demonstrates how the failure to comply with the nationally endorsed plan to address domestic violence places some women at risk of further harm. The example of WA's victims of crime compensation processes highlights the high level of female domestic violence victims using the scheme and important intersectional issues pertinent for Indigenous women. The paper points to how a specific failure of policy implementation may be addressed.     

The emergence of an ethic of care in rural Kenyan schools? Perspectives of teachers and orphaned and vulnerable pupils

In the context of HIV, there is considerable debate about the role of schools and teachers as potential sources of care and support for vulnerable children. This qualitative research examines ‘care’ as experienced and practiced by pupils and teachers in rural Western Kenya. In primary and secondary schools, interviews were conducted with 18 teachers and 57 orphaned and vulnerable pupils, alongside Photovoice. Drawing on thematic analysis and an ‘ethic of care’ theoretical perspective, we unpack the informal caring practices of teachers within resource-constrained settings. The research provides glimpses of schools as spaces of care, participation and support for orphaned and vulnerable pupils. Recognising and providing institutional support for the development of an ethic of care in schools may help to tackle the considerable educational barriers facing girls and boys who are orphaned and vulnerable and move ‘care’ closer towards the centre of educational policy and practice in the global South.     

‘Britishness’, Colonial Governance and Education: St Helenian Children in Colonial Natal in the 1870s

This article considers understandings of ‘Britishness’ in the Natal colony in the 1870s. Focusing on St Helenian children’s expulsion from ‘government’ schools that were ostensibly open to all racial groups, the article shows how competing definitions of race and ‘Britishness’ shaped the responses of colonial officials, settlers and the St Helenian community to the expulsion. The white settler population in Natal was concerned about St Helenian economic migrants’ inclusion in white, English society. In particular, the ambiguous racial status of St Helenians was seen as potentially harmful to white children. The focus on a group of recent incomers to the colony uncovers a process of racialisation unfolding in the context of migrations within the British Empire. The case highlights how movement and migration within the empire could bring these definitions of race and Britishness into conversation and conflict with each other.