No

Yes / After more than 3500 years of occupation in the Neolithic and Bronze Age, the many lake-dwellings’ around the Circum-Alpine region ‘suddenly’ came to an end. Throughout that period alternating phases of occupation and abandonment illustrate how resilient lacustrine populations were against change: cultural/environmental factors might have forced them to relocate temporarily, but they always returned to the lakes. So why were the lake-dwellings finally abandoned and what exactly happened towards the end of the Late Bronze Age that made the lake-dwellers change their way of life so drastically? The new research presented here draws upon the results of a four-year-long project dedicated to shedding light on this intriguing conundrum. Placing a particular emphasis upon the Bronze Age, a multidisciplinary team of researchers has studied the lake-dwelling phenomenon inside out, leaving no stones unturned, enabling identification of all possible interactive socio-economic and environmental factors that can be subsequently tested against each other to prove (or disprove) their validity. By re-fitting the various pieces of the jigsaw a plausible, but also rather unexpected, picture emerges. / Swiss National Science Foundation

No

No

No / Studies of Late Bronze Age exchange and communication networks in the northern Circum-Alpine region, and central Europe as a whole, have typically focused on routes across the Alps and the circulation of high-value manufactured goods from the Italian peninsula to central Europe. Some artefacts certainly support such a movement from north to south, such as amber from the north or Pfahlbauperlen from the Po Plain. However, such objects are far outweighed by the evidence for regional exchange routes in central Europe north of the Alps. Some of these routes extended as far as northern Germany and southern Scandinavia. Whether such exchange routes were direct or down-the-line is open to debate, but it is possible that specific objects known from Switzerland represent the personal possessions of migrant individuals. Over all, it is evident that Late Bronze Age lake-dwelling communities in Switzerland were significant bronze work manufacturing centres, exporting goods to varied communities and regions across central Europe, but with potentially limited exchange, transfer, and cross fertilization of styles and equipment between eastern and western Switzerland.

The water-energy nexus holds paramount relevance in the context of the transition to a carbon free energy system, being water the only renewable energy source with reliable storage capacity. Modelling hydropower production in a large domain over a long time window represents an open challenge due to a variety of reasons: firstly, high-resolution, large-scale hydrological modelling in a context of uncertainty needs calibration, thus representing a computationally intensive task due to the large domain and time window over which calibration is needed; secondly, as stated by many works in literature, hydropower production modelling and in particular reservoir modelling is a very information-demanding procedure, and excessive simplifications adopted to face the lack of information might lead to consistent bias in the predictions. This thesis can be subdivided into three main parts: firstly, the model that was used to perform every analysis, HYPERstreamHS, will be presented. The model is a continuous, large-scale hydrological model embedding a dual-layer MPI framework (i.e. Message Passing Interface, a common standard in parallel computing) that ensures optimal scalability of the model, greatly reducing the computation time needed. Explicit simulation of water diversions due to hydropower production is also included in the model, and adopts only publicly available information, making the model widely applicable. Secondly, a first validation of the model will be presented, and the adopted approach will be compared with some other approaches commonly found in literature, showing that the inclusion of a high level of detail is crucial to ensure a reliable performance of the model; this first application was performed on the Adige catchment, where extensive information on human systems was available, and allowed to effectively assess which information were indispensable and which, in turn, could be simplified to some extent while preserving model performance. Finally, the model setup has been applied on a relevant portion of the Western Italian Alps; in this case, two different meteorological input forcing data sets were adopted, in order to assess the differences in their performance in terms of hydropower production modelling. This latter study indeed represents a preliminary analysis and will provide stepping stone to extend the modelling framework to the Italian Alpine Region.

Yes / The Iron Age in Europe was a period of tremendous cultural dynamism, during which the values and constructs of urbanised Mediterranean civilisations clashed with alternative webs of identity in ‘barbarian’ temperate Europe. Until recently archaeologists and ancient historians have tended to view the cultural identities of Iron Age Europeans as essentially monolithic (Romans, Greeks, Celts, Illyrians etc). Dominant narratives have been concerned with the supposed origins and spread of peoples, like ‘the Celts’ (e.g. COLLIS 2003), and their subsequent ‘Hellenisation’ or ‘Romanisation’ through encounters with neighbouring societies. Yet there is little to suggest that collective identity in this period was exclusively or predominantly ethnic, national or even tribal. Instead we need to examine the impact of cultural encounters at the more local level of the individual, kin-group or lineage, exploring identity as a more dynamic, layered construct. / HERA, European Commission

Yes / Lakeshore and wetland settlements of the Circum-Alpine region are well known for their excellent preservation of organic remains and their potential for accurate dating through dendrochronology. This settlement tradition spans from the Neolithic to the Early Iron Age, though several hiatuses in lake-dwelling construction are observed. Traditional models for the abandonment of lake settlements rely upon climatically deterministic models, linking declining climatic conditions to increasing lake-levels, which would have impacted upon settlements and forced the inhabitants to relocate. Recent studies of Neolithic lake-dwellings have indicated that social factors also influenced the development of these settlements, while the ‘social biography’ of settlements has been an area of increasing interest in terrestrial settlements. A review of selected Late Bronze Age (LBA) lake settlement illustrates the development sequence seen at many lake-dwellings from across the Circum-Alpine region. The proposal of a biographical model linking cultural influences to the development sequence observed in LBA lake-dwellings, and to the choice to abandon areas and relocate villages, offers further insights into the development of enigmatic settlements. / Swiss National Science Foundation

No / Over 150 years of research in the Circum-Alpine region have produced a vast amount of data on the lakeshore and wetland settlements found throughout the area. Particularly in the northern region, dendrochronological studies have provided highly accurate sequences of occupation, which have correlated, in turn, to palaeoclimatic reconstructions in the area. The result has been the general conclusion that the lake-dwelling tradition was governed by climatic factors, with communities abandoning the lakeshore during periods of inclement conditions, and returning when the climate was more favourable. Such a cyclical pattern occurred from the 4th millennium BC to 800 BC, at which time the lakeshores were abandoned and never extensively re-occupied. Was this final break with a long-lasting tradition solely the result of climatic fluctuation, or were cultural factors a more decisive influence for the decline of lake-dwelling occupation? Studies of material culture have shown that some of the Late Bronze Age lake-dwellings in the northern Alpine region were significant centres for the production and exchange of bronzework and manufactured products, linking northern Europe to the southern Alpine forelands and beyond. However, during the early Iron Age the former lake-dwelling region does not show such high levels of incorporation to long-distance exchange systems. Combining the evidence of material culture studies with occupation patterns and burial practices, this volume proposes an alternative to the climatically-driven models of lake-dwelling abandonment. This is not to say that climate change did not influence those communities, but that it was only one factor among many. More significantly, it was a combination of social choice to abandon the shore, and subsequent cultural developments that inhibited the full scale reoccupation of the lakes. / Swiss National Science Foundation

No / After more than 3500 years of occupation in the Neolithic and Bronze Age, the many lake-dwellings’ around the Circum-Alpine region ‘suddenly’ came to an end. Throughout that period alternating phases of occupation and abandonment illustrate how resilient lacustrine populations were against change: cultural/environmental factors might have forced them to relocate temporarily, but they always returned to the lakes. So why were the lake-dwellings finally abandoned and what exactly happened towards the end of the Late Bronze Age that made the lake-dwellers change their way of life so drastically? The new research presented here draws upon the results of a four-year-long project dedicated to shedding light on this intriguing conundrum. Placing a particular emphasis upon the Bronze Age, a multidisciplinary team of researchers has studied the lake-dwelling phenomenon inside out, leaving no stones unturned, enabling identification of all possible interactive socio-economic and environmental factors that can be subsequently tested against each other to prove (or disprove) their validity. By re-fitting the various pieces of the jigsaw a plausible, but also rather unexpected, picture emerges.