The environment as a life support system: the case of Biosphere 2

This paper studies an attempt to replicate the Earth’s biosphere in the second half of the twentieth century with the aim of preserving and refashioning the environment as a self‐reproducing ecological system. Ecosystems dynamics framed the planet Earth as a closed system and directed scientific attention to questions of global environmental management. The image of the Earth as a spacecraft and operable in a similar way supported ideas of placing the environment in a laboratory setting. Using the case of Biosphere 2, launched in the Arizona desert in 1983, this paper studies the images of nature and environment contained in this quest to create an ecosystem and human habitat as good as, or superior to nature on Earth (known in this context as Biosphere 1). The second biosphere was designed as ‘a prototype for a space colony’ that would eventually enable its deteriorating predecessor, the Earthly biosphere, to reproduce and allow human settler societies to migrate to other planets. The paper draws on the cultural history of the ship in Western culture and on ships and spaceships as archetypes of autarkic enclosures set apart from nature. It argues that Biosphere 2 as an example of a technologically controlled endosphere advanced an understanding of the environment as a ‘life support system’ that emphasized not completeness but systems integrity, and was based on principles of functionality and replaceability. The paper will explore how notions of biospheric life support shaped demands on the natural and social environments in Biosphere 2 and Biosphere 1.     

Efficient but destructive: a test of the dental wash technique using secondary electron microscopy

The Boyadjian et al dental wash technique provides, in certain contexts, the only chance to analyze and quantify the use of plants by past populations and is therefore an important milestone for the reconstruction of paleodiet. With this paper we present recent investigations and results upon the influence of this method on teeth. A series of six teeth from a three thousand years old Brazilian shellmound (Jabuticabeira II) was examined before and after dental wash. The main focus was documenting the alteration of the surfaces and microstructures. The status of all teeth were documented using macrophotography, optical light microscopy, and atmospheric Secondary Electron Microscopy (aSEM) prior and after applying the dental wash technique. The comparison of pictures taken before and after dental wash showed the different degrees of variation and damage done to the teeth but, also, provided additional information about microstructures, which have not been visible before. Consequently we suggest that dental wash should only be carried out, if absolutely necessary, after dental pathology, dental morphology and microwear studies have been accomplished.     

Besuchermonitoring in Nationalparken: Eine Bestandsaufnahme in Deutschland, ?sterreich und der Schweiz

Derzeit ist eine Zunahme und Intensivierung natur- und landschaftsgebundener Erholungs- bzw. Freizeitaktivit?ten zu beobachten. Wenn Fl?chen gleichzeitig durch Naturschutz „genutzt“ werden, resultieren daraus Konflikte. Vor allem in Nationalparken, deren Ziel eine freie und vom Menschen unbeeinflu?te Naturentwicklung ist, kommt dem Spannungsfeld „Naturschutz versus Erholungsnutzung“ wachsende Bedeutung zu. Planungsma?nahmen zur Erholungsnutzung im Einklang mit Naturschutzgedanken sollten sich daher auf ein Besuchermonitoring stützen. Generell kann „Monitoring of Visitor Flows“ den Entscheidungstr?gern Aussagen über Besucherzahlen, -charakteristika, -verhalten und -wünsche bereitstellen. Die Literatur weist jedoch auf bestehende Defizite beim Besuchermonitoring (mittel-)europ?ischer Schutzgebiete hin. Um einen methodischen überblick und eine theoretische Grundlage für die Weiterentwicklung zu einem ad?quaten Besuchermonitoring bereitzustellen, wurden verschiedene Nationalparke in Deutschland, ?sterreich und der Schweiz zu dem von ihnen durchgeführten Monitoring befragt. Die Ergebnisse spiegeln Bedarf und Probleme wider.     

Testing heterogeneity in faunal assemblages from archaeological sites. Tumbling and trampling experiments at the early-Middle Pleistocene site of Gesher Benot Ya’aqov (Israel)

The current paper reports an experimental case study to test the heterogeneity of faunal assemblages from the Early-Middle Pleistocene Layers V-5 and V-6 of the Gesher Benot Ya’aqov Acheulian site (Israel). Tumbling and trampling experiments were initiated to gain qualitative insight into processes of bone modification and to assess the timing of the biostratonomic chronology, as it was assumed that both mechanisms were responsible for the formation of striations documented on the bone surfaces from the site. The tumbling experiments mimicked sediment movement in a calm lacustrine shoreline environment whereas the trampling experiments investigate the role of animal/hominin activities in dry, muddy and wet environments. Models for the internal operational sequence of an abrasional process due to uni- and multidirectional water movement and of a trampling scenario are presented. These models are used for the interpretation of the fauna from Gesher Benot Ya’aqov.     

Characterisation of the raw metal sources used for the production of copper and copper-based objects with copper isotopes

Copper isotopes can be successfully used to determine the origin of copper or bronze artefacts from either primary or supergene sulphide or hydrocarbonate ores. In conjunction with lead isotopes, they provide information on the origin and type of the metal ore. We demonstrate this in this paper from the combination of literature and own data on metal ores and artefacts (coins and ingots). Low-temperature hydrocarbonates (esp. malachite and azurite) do not fractionate the copper isotopes amongst each other and have identical lead isotopes. Substantial fractionation of copper isotopes, however, occurs between copper sulphides and hydrocarbonates (malachite, azurite) such that the ⁶⁵Cu isotope is always enriched in the oxidised relative to the sulphide phase with a clear distinction between the two ore types. Expressed in the δ⁶⁵Cu notation, we assigned supergene sulphides to values less than −0.4‰ down to negative values of −2‰ and more, primary sulphides to a range between −0.4 and +0.3‰ and hydrocarbonates to positive values higher than +0.3‰. We have applied these boundaries to copper coins and ingots from the time of the Roman emperors with known ages from Augustus up to 250 AD. The deposit fields of the metal used for the production of the coins were previously identified from the lead isotope ratios to lie in the Southwest and the Central South of Spain. From the combination of the lead and copper isotopes and the exact time constrains, we could develop a picture of the change in mining activities in Spain involving continued mining sulphide ore deposits and, indicated by positive δ⁶⁵Cu values as proxies for malachite and azurite, the opening of new mines in various time slots. This first application shows that copper isotopes will become the most important tool in archaeometallurgy to distinguish between the exploitation of deeper-seated primary and supergene sulphide ores and shallower, secondary hydrocarbonate ores. This will become especially relevant for archaeometric questions regarding the distinction between occasional and intentionally produced alloys.     

Strathern's Melanesian ‘dividual’ and the Christian ‘individual’: a Perspective from Vanua Lava,Vanuatu

What happens to people's concept of the person when their ‘dividuality’ engages with the Christian concept of the ‘individual’? According to Vanua Lava kastom, when people die they go to sere timiat, the place of the dead. But do they still go there when the person had been a Christian during their life time? Where is the Christian heaven and hell? Is there a separate Christian ‘soul’? Will the dead be eternally separated from each other and their ancestors? Can kastom and Christian concepts be reconciled? Depending on denomination and degree of conversion (devout, nominal, or ‘back‐slider’) people have found multiple answers that help them conceptualise their final resting place. Their answers are of relevance for theoretical debates in anthropology about dividuality, individuality and engagement with modernity.     

Coping with Peripheralization: Governance Response in Two German Small Cities

Urban governance processes and strategies in small cities in times of an integrated global economy have received little attention in urban research. However, in Germany as elsewhere they form the backbone of the urban system. On the basis of research in two small German cities—Pirmasens and Völklingen—this paper discusses local governance approaches in reaction to peripheralization. Peripheralization here is defined as a process of out-migration, dis-connection, dependency and stigmatization. The two case studies show quite different patterns of political governance. Pirmasens demonstrates a collective local project on how to deal with structural change, while Völklingen shows a more fragmented approach to overcoming peripheralization. These different political reactions are analysed and related to aspects of specific local settings. It is to be hoped that in future cohesion policy at the European level, but also on the respective national levels, more active policies will be targeted towards nurturing place-based opportunities for small cities.