Ancient Biological Invasions and Island Ecosystems: Tracking Translocations of Wild Plants and Animals

Biological invasions are one of the great threats to Earth’s ecosystems and biodiversity in the Anthropocene. However, species introductions and invasions extend deep into the human past, with the translocation of both wild and domestic species around the world. Here, we review the human translocation of wild plants and animals to the world’s islands. We focus on establishing criteria used to differentiate natural from human-assisted dispersals and the differences between non-native and invasive species. Our study demonstrates that, along with a suite of domesticates, ancient people transported numerous wild plants and animals to islands and helped shape ecosystems in ways that have important ramifications for modern conservation, restoration, and management.     

Aquatic resources in human diet in the Late Mesolithic in Northern France and Luxembourg: insights from carbon,nitrogen and sulphur isotope ratios

We investigated the contribution of freshwater resources to the diet of seven Late Mesolithic hunter-gatherers (ca. 5300–7000 BC) from Northern France and Luxembourg using stable isotope ratios. In addition to the carbon and nitrogen stable isotope ratios (δ¹³C, δ¹⁵N), we explored the potential of the sulphur isotopic ratios (δ³⁴S) to detect and quantify the proportion of protein derived from aquatic foodstuff. In only two sites, animal remains from an associated settlement were available and subsequently examined to decipher the isotopic differential between terrestrial and freshwater resources. The quantification of their relative contribution was simulated using a Bayesian mixing model. The measurements revealed a significant overlap in δ¹³C values between freshwater and terrestrial resources and a large range of δ¹⁵N values for each food category. The δ³⁴S values of the aquatic and terrestrial animals were clearly distinct at the settlement in the Seine valley, while the results on fish from Belgium demonstrated a possible overlap in δ³⁴S values between freshwater and terrestrial resources. Local freshwater ecosystem likely contributed to ca. 30–40 % of the protein in the diet of the individuals found in the Seine settlement. Out of this context, the isotopic signature and thus contribution of the available aquatic foods was difficult to assess. Another potential source of dietary protein is wild boar. Depending on the local context, collagen δ³⁴S values may contribute to better assessment of the relative contribution of freshwater and terrestrial resources.     

The Movement and Exchange of Dogs in the Prehistoric Caribbean: An Isotopic Investigation

This study explores the feasibility of using strontium isotope (⁸⁷Sr/⁸⁶Sr) analyses of enamel from domestic dogs (Canis familiaris) to investigate networks of exchange in the prehistoric Circum‐Caribbean. Dog teeth were obtained from burial and domestic contexts from two prehistoric sites (Anse à la Gourde and Morel) on Grande‐Terre, Guadeloupe (Lesser Antilles). Strontium isotope results were compared with local biosphere ⁸⁷Sr/⁸⁶Sr data at the scale of the site, island and archipelago. The isotope results indicate both local and nonlocal origins with three dogs (30%) identified as nonlocal (one from Anse à la Gourde and two from Morel). The variance in ⁸⁷Sr/⁸⁶Sr ratios of the nonlocal dog teeth is consistent with diverse multiple origins external to the island of Grande‐Terre but consistent with origins from other islands of the Lesser Antilles. The diverse origins of the nonlocal dog samples indicate that the prehistoric circulation of dogs occurred at multiple scales from regional to long distance. Significantly, the ⁸⁷Sr/⁸⁶Sr ratios of some of the dog teeth are comparable with values of nonlocal humans at Anse à la Gourde determined in previous studies. It is possible that these comparable ⁸⁷Sr/⁸⁶Sr ratios result from similar natal origins, for example if individuals were migrating to Guadeloupe with dogs. The results of this study contribute to an ongoing regional investigation of the economic, social and political roles of animals and animal remains and the multiscalar networks of prehistoric mobility and exchange in the Circum‐Caribbean region. Copyright © 2013 John Wiley & Sons, Ltd.     

The Central Institute for Brain Research in Amsterdam and its Directors

The Central Institute for Brain Research was founded in Amsterdam in 1908 as part of an international effort to study the nervous system with multiple institutions and various disciplines. The development of research in the past hundred years at the Brain Institute has hardly been documented. We analyze the history of this institute by means of brief portraits of its directors and their main research topics. It appears that each director introduced his own branch of neuroscience into the institute. Initially, mainly comparative neuroanatomical data were collected. Following the Second World War, the multidisciplinary approach slowly developed with research programs on systems neuroscience, neuroendocrinology, and brain disorders. Every new director introduced new approaches to the study of the brain and thus played an important role in keeping brain research in the Netherlands at the international forefront where it has been ever since its foundation in 1908.     

Determining the Provenance of Cayo Pottery from Grenada,Lesser Antilles,Using Portable X‐Ray Fluorescence Spectrometry

Portable XRF was used to analyse the chemical composition of 52 indigenous Cayo ceramics from excavations and from private collections on Grenada, Lesser Antilles. Initially, a comparative baseline of data representing three different islands (Grenada, St Vincent and Trinidad) was created by analysing with pXRF ceramic material that had previously been analysed both chemically and petrographically. The field data, when compared to the laboratory baseline data, indicated that the majority of the ceramics were made with clay local to Grenada. Four samples were potentially made with clay from another, as yet unidentified, source.     

Mapping the New Deal: local disparities in the performance of Welfare-to-Work

In recent years, following the lead of the US, several OECD countries have introduced 'workfare' policies that link receipt of unemployment and related social benefits to compulsory participation on state-administered work and training schemes. The UK's New Deal (Welfare-to-Work) for Young People is one of the largest and most developed of these workfare programmes. Official evaluations of the UK's New Deal for Young People claim that it has been a national success, but overlook local variations in its results. This paper uses the Government's own performance measures, data on local unemployment flows, numbers of New Deal participants recycled through the scheme as second starts, and interviews with both local policy managers and participants, to demonstrate that these local variations have been substantial. These different indicators suggest that the programme has been noticeably less effective in many inner urban and depressed industrial labour markets. In such areas the 'recycling and churning' of participants through the programme are more significant, and suggest that local labour market structures play a significant role in shaping policy outcomes. The paper argues that recent additions to the New Deal to improve job search and matching fail to address this local variation, and that a longer-term approach is required that seeks to improve not only the employability of individuals, but also the local employment opportunities open to them. One key implication is clear: that local labour market conditions can exert a significant influence on the outcomes of national workfare type policies, not only in terms of geographical variations in the problem to be solved, but also in shaping and constraining the local nature of policy outcomes.     

An obligation of conscience: gossip as social control in an eighteenth-century Flemish town

This article investigates how gossip developed as a tool of social control in eighteenth-century Kortrijk, an average-sized town in Flanders. Through gossip, people influenced others' behaviour, by performing social norms, by punishing violators of norms, by publicising the punishments of these deviants, and finally, by spreading information about improper behaviour, possibly leading to other sanctions. Previous research has insufficiently considered how the effects of gossip as social control were influenced by the historical situations in which it occurred. Most notably, the decline of honour and the formalisation of social control altered the ways in which people could effectively use the power of gossip, as in the second half of the eighteenth century, gossip was less a direct deterrent of deviant behaviour, but became more important in formal control settings.     

Global Patterns in Island Colonization during the Holocene

Journal of World Prehistory - Analysis of the spatial and temporal structure of global island colonization allows us to frame the extent of insular human cultural diversity, model the impact of...