Search

The Golden Digger wasp Sphex funerarius (Gussakovskij 1934) is the largest native European sphecid wasp. Whilst it is a species with a mainly Mediterranean distribution, it can be found sporadically in central Europe during periods of warm and dry weather. The exact reasons for its appearance and disappearance are not well understood, but are probably connected to the abundance of prey. It is probable that recent climate change, caused by long term global warming through human activity, has led to the spread of S. funerarius over central Europe, which makes it likely to appear, sooner or later, in northern Europe and Great Britain. This paper describes the breeding behaviour and general biology as well as the current range expansion of Sphex funerarius. [ABSTRACT FROM AUTHOR]

Biscuits are a major product category in the global confectionary sector. Despite this, their environmental impacts are poorly characterised. Therefore, this paper sets out to evaluate the life cycle environmental sustainability of the following widely-consumed types of biscuit, both at the product and sectoral levels: crackers, low fat/sugar, semi-sweet, chocolate-coated and sandwich biscuits with chocolate or vanilla cream. The results obtained through life cycle assessment demonstrate that, in addition to being healthier, low fat/sugar biscuits have the lowest impacts across most of the 18 categories considered. Chocolate-coated biscuits are environmentally the least sustainable. The most significant life cycle stage for all types is the raw materials production, causing 41%–61% of the total impacts, with flour, sugar and palm oil being the key hotspots. Replacing palm with rapeseed oil would improve five impacts but worsen another five, including a 34% increase in agricultural land occupation and marine eutrophication. Therefore, the cultivation and production of palm oil, rather than its replacement, should be targeted for improvements. The second most crucial stage is manufacturing, contributing up to 54% of the impacts, followed by transport with up to 35%. Reducing energy consumption by 25% in manufacturing would reduce primary energy demand by 8%–12%, fossil fuel depletion by 9%–12% and global warming potential by 6%–9%. The latter would increase by 55% if land use change related to cocoa was involved, despite a very small amount of cocoa in the biscuits (∼1%). The analysis at a sectoral level in the UK, the leading consumer of biscuits in Europe, reveals that biscuits contribute 7.4% of primary energy demand and 0.5% of greenhouse gas emissions of the whole UK food sector. These results can help guide manufacturers in mitigating the hotspots in the supply chain and consumers in selecting environmentally more sustainable biscuits. • The environmental sustainability of six types of biscuit is evaluated for the first time. • Low fat/sugar biscuits have the lowest impacts and chocolate-coated the highest. • Global warming potential of chocolate biscuits is 55% higher with land use change. • Flour, sugar and palm oil are the key hotpots, followed by biscuits manufacturing. • Biscuits contribute 7.4% of energy demand and 0.5% of GWP of the UK food sector. [ABSTRACT FROM AUTHOR]

• Technological and behavioural developments in Europe at 400,000 years ago. • Model of landscape and resources shaping development of localised material culture. • Model of population movement triggered by shifts in climate or environment. • Estimates of social group and territory size for Middle Pleistocene Europe. Identification of cultural groups is rare in the early Palaeolithic due to site formation processes including taphonomy and the effect of raw material and site function. This paper reviews a critical period in Europe at about 400 ka (MIS 11) when we may be able to identify such groups. This period, sees more sustained occupation and evidence of new technologies, including bone and wooden tools, hunting and fire-use. Importantly, brain size had begun to approach modern capacity. The fine-tuned record from Britain enables correlation of sites and new models of human behaviour to be developed. Millennial-scale changes in material culture can now be recognised, which can be interpreted as brief incursions by different cultural groups into Britain from mainland Europe. We suggest that population movement was primarily driven by changes in climate and environment. We further propose that variation in material culture is a reflection of local resources and landscape and that during stable environment localised expressions of culture emerge. This can be applied to Europe, where it is suggested that a complex mosaic of small-scale cultural groupings can be identified, some with and some without handaxes, but underpinned by a common set of technologies and behaviours. [ABSTRACT FROM AUTHOR]