scholarly journals Impact of early Polynesian occupation on the land snail fauna of Henderson Island, Pitcairn group (South Pacific)

1998 ◽  
Vol 353 (1367) ◽  
pp. 347-368 ◽  
Author(s):  
R. C. Preece

Henderson Island, an uninhabited raised coral atoll in the Pitcairn group, has recently been designated a World Heritage Site because of its unique and relatively undisturbed ecosystem. The island is believed to have been uplifted and subaerially exposed during the last 275 kyr. This therefore provides the maximum age for the terrestrial biota that includes several endemic taxa. Henderson today supports 16 strictly terrestrial species of snails, about half of which are endemic. Analyses of sediments beneath Polynesian occupation horizons dated between the 11th and 17th centuries AD, have yielded 11 species of land snail present in the modern fauna, together with at least six (and possibly as many as eight) further species that no longer occur on the island. These extinct taxa are illustrated and formal descriptions provided for five ( Pleuropoma hendersoni , Orobophana carinacosta , Minidonta macromphalus , Philonesia pyramidalis , P. weisleri ); a sixth, known only from broken shells, appears to belong to the genus Hiona . The two remaining taxa are ‘tornatellinids’ that have not been recognized among the modern fauna. Radiocarbon dates from bones of associated extinct land birds confirm their occurrence on Henderson before the first signs of Polynesian settlement. The extinction of these taxa seems to coincide with the Polynesian occupation and evidence for large-scale burning, at least around parts of the plateau margin, suggests that their demise can be linked with habitat destruction. At least three species, Gastrocopta pediculus , Lamellidea oblonga and Pupisoma orcula , first appear in Polynesian occupation horizons. Their status as prehistoric introductions is therefore confirmed but G. pediculus no longer lives on Henderson. Pacificella variabilis , Tornatellides oblongus parvulus and Elasmias sp., all previously thought to have been other prehistoric introductions to Henderson, were recovered from pre-Polynesian levels and are therefore native.

2021 ◽  
pp. 1-30
Author(s):  
Stephen Davis ◽  
Knut Rassmann

The Brú na Bóinne World Heritage Site, Ireland is best known for its megalithic monuments, in particular the great developed passage tombs of Knowth, Dowth, and Newgrange, and its abundance of megalithic art. However, our understanding of the wider Brú na Bóinne landscape has changed beyond all recognition in the last decade owing to the application of modern, non-invasive survey technologies – in particular LiDAR and large-scale geophysical survey – and most recently as a result of the hot, dry summer of 2018 which revealed a series of remarkable cropmarks between Newgrange and the River Boyne. Despite a lack of excavation it can be argued, based on their morphological characteristics, that many of the structures revealed belong within the corpus of late Neolithic ritual/ceremonial structures, including earthen henges, square-in-circle monuments, palisaded enclosures, and pit/post-alignments. These display both extraordinary diversity, yet also commonality of design and architecture, both as a group and with the passage tombs that preceded them. This paper provides an up-to-date survey of the late Neolithic and presumed late Neolithic landscape of Brú na Bóinne. It provides new evidence and new insights from ongoing survey campaigns, suggesting parallels within the British Neolithic but also insular development within some monument classes.


PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0185419 ◽  
Author(s):  
Steven Thomas Kessel ◽  
Nasreldin Alhasan Elamin ◽  
David James Yurkowski ◽  
Tarik Chekchak ◽  
Ryan Patrick Walter ◽  
...  

Antiquity ◽  
2018 ◽  
Vol 92 (362) ◽  
pp. 281-288
Author(s):  
Robert Witcher

Thirty years ago on a London street, an excited young teenager stood in a queue the likes of which he had never previously seen. The wait, however, was worth it, for the reward was the opportunity to see a small detachment of warriors from the Terracotta Army on their first visit to the city. For this particular young archaeologist, it was a glimpse of a foreign civilisation that made the local Roman ruins look desperately provincial by comparison. But it was not just I who was impressed; public interest in the event was extraordinary. With hindsight, it is easy to overlook the novelty that the warriors represented at that time. Fewer than 15 years had passed between the discovery of an army guarding the tomb of the Emperor Qin Shi Huang, large-scale excavations at the mausoleum complex and its inscription as a World Heritage Site, and the arrival of the exhibition in London at the start of an endless global tour as the new face (or faces) of Chinese cultural heritage.


2018 ◽  
Vol 16 (5) ◽  
Author(s):  
Rohayah Che Amat

This research presents the value of historic urban landscape (HUL) elements in influencing the character of George Town UNESCO World Heritage Site (WHS), Penang, Malaysia. The values were perceived by the local community of different social-cultural groups that occupied the study area. The historic urban landscape elements constitute towards the protection of its townscape. The identification of the heritage elements influenced by the community interaction with their environment. This study also helps to define the character of a place, as well as reflecting its historical significance. The study adopted four techniques to gather both qualitative and quantitative data, including questionnaire survey, in-depth interview, visual survey and content analysis. In general, the local community has the capability in valuing the historic urban landscape values. The outcomes of their perceptions became the statement of the historic urban landscape values, which are expected to lead to the development of the areas. The community evaluation and perception can be expanded in implementing any development of the historic urban area by the authority.


2007 ◽  
Vol 22 (10) ◽  
pp. 2848-2852 ◽  
Author(s):  
B. Anjan Kumar Prusty ◽  
Rachna Chandra ◽  
P.A. Azeez ◽  
L.L. Sharma

2019 ◽  
Vol 12 (1) ◽  
pp. 295 ◽  
Author(s):  
Bin Fu ◽  
Pei Xu ◽  
Yukuan Wang ◽  
Yingman Guo

Ecological management based on the ecosystem approach promotes ecological protection and the sustainable use of natural resources. We developed a quantitative approach to identify the ecological function zones at the country-scale, through integrating supply and demand of ecosystem services. We selected the biologically diverse hotspot of Baoxing County, which forms a part of the Sichuan Giant Panda World Heritage Site, to explore the integration of ecosystem services supply and demand for ecosystem management. Specifically, we assessed the various support, provision, regulating, and cultural services as classified by the Millennium Ecosystem Assessment. We applied the InVEST (Integrated Valuation of Ecosystem Services and Trade-offs) model to spatially map habitat quality, water retention, and carbon sinks, and used statistical data to evaluate food products, animal husbandry, and product supply services. We then quantified the demands for these services in terms of population, protected species, hydropower, water, and land use. The relationship between areas of supply and areas of demand was discussed for each township, and the spatial variability in the supply–demand relationship was also considered. As a result, we spatially divided the county into six ecological functional areas, and the linkages between each region were comprehensively discussed. This study thus provides a detailed methodology for the successful implementation of an ecosystem management framework on a county-scale based on the spatial partitioning of supply and demand.


2021 ◽  
Vol 13 (14) ◽  
pp. 8006
Author(s):  
Till Schmäing ◽  
Norbert Grotjohann

The Wadden Sea ecosystem is unique in many respects from a biological perspective. This is one reason why it is protected by national parks in Germany and by its designation as a UNESCO World Heritage Site. In biology didactics, there are only a few studies that focus on the Wadden Sea. This work investigates students’ word associations with the two stimulus words “national park” and “UNESCO World Heritage Site”. The survey was conducted among students living directly at the Wadden Sea and among students from the inland. The analysis of the identified associations (n = 8345) was carried out within the framework of a quantitative content analysis to be able to present and discuss the results on a group level. A statistically significant difference was found between the two groups. Overall, results showed that the students made subject-related associations as well as a large number of associations to both stimulus words that could be judged as non-subject-related. In some cases, a connection with the region of residence could be found, but this was not generally the case. Even students’ immediate residential proximity to the Wadden Sea is no guarantee that they have knowledge of the two considered protection terms.


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