Mesowear as a means of determining diets in African antelopes

Analysis of dental mesowear is a useful tool to examine dietary strategies in ungulates, and provides a palaeoenvironmental proxy at archaeological and palaeontological sites. We examine the distribution of traditional qualitative mesowear variables amongst 33 species of extant African antelope. We also examine the relationship of our dataset with the original dataset of Fortelius and Solounias (2000). We find that confining mesowear analyses to antelope species alone reduces their discriminating power relative to that found in analyses using a broader range of taxa. Variability in mesowear scores along the toothrow suggest that different teeth do not wear equivalently over an individual’s life-time, so it is important to confine comparisons to individual tooth positions for palaeodietary classifications. Mesowear scores from the third upper molar were found to have the greatest discriminating power. Frugivores displayed unique mesowear signatures, suggesting that this trophic guild should be taken into consideration separately in future mesowear analyses. These results have implications which can improve the application and the discriminatory power of mesowear analyses for the determination of the palaeodiets of extinct taxa, and, by extension, their palaeoenvironments.     

Network dynamics in collaborative research in the EU, 2003–2017

ABSTRACT

A key objective of the EU Framework Programmes for Research and Innovation is the creation of cross-country research networks. We make use of Social Network tools to describe the evolution of the EU research network across countries on the basis of unique data covering collaborative projects launched during the first four years of implementation of Horizon 2020 and its predecessor programmes, the Sixth and Seventh Framework Programme. We describe the positioning of all EU-countries in the collaborative research network, the positioning of the older member EU-15 and the newer member EU-13 countries in particular, and to what extent the network has been subject to change during the period 2003–2017. EU-15 and EU-13 countries have become more integrated, and some organizations fulfil a bridging function in the EU research network. EU-13 countries are more heavily engaged in parts of the programme on lower complexity research activities.     

Exploitation of groundwater in the oasis of Masāfī (UAE): A diachronic perspective

In order to understand the role of water resources in the establishment and long-term evolution of settlements investigated by the French Archaeological Mission in the UAE in the oasis of Masāfī, wells and springs of all periods, identified at the surface and in stratified contexts, were mapped and studied thanks to a multidisciplinary approach combining archaeology, geomorphology, geoarchaeology and ethnography. Our study demonstrates that:

• – The Masāfī oasis was located in a specific geological setting entailing the accumulation of groundwater resources at reachable depth.
• – The groundwater resources remained rather stable from the mid-second millennium BC to the second half of the twentieth century AD. In this respect, the apparent abandonment of the oasis during some periods cannot be explained by water depletion.
• – The groundwater resources have decreased sharply since the second half of the twentieth century AD, due to the introduction of new water extraction technologies, motor pumps and then drillings, as a result of the modernisation and industrialisation of UAE economy.

Our study also stresses the importance of well and spring irrigation in the development of the sedentary settlements in south-eastern Arabia, technologies that have often been neglected in the regional archaeological literature in favour of the qanāt.