Epilogue: Trajectories and Turning-Points

Author(s):  
Helena Hamerow

A survey such as this one can only present a fraction of the archaeological evidence available for early medieval settlements, yet even a relatively brief review of this evidence makes plain the remarkable diversity of these settlements in terms of form and economy; the communities they represent were far from being simple, isolated, and economically primitive as so often portrayed in traditional historical scholarship. In particular, the recognition on the one hand of highstatus complexes dating to the Migration period and, on the other, farming communities of ‘ordinary’ status which were extensively engaged in trade and non-agrarian production, points to a higher degree of economic complexity, integration, and resilience than was previously imagined. Furthermore, the archaeology, when viewed in toto, points to what has aptly been dubbed ‘the long eighth century’, namely the period from c.680 to 830,1 as a turning-point, not only in terms of settlement structure and architecture, but also in the organization of landed production and regional exchange. By 800, as we have seen, rural settlements in the North Sea zone were configured in ways that were markedly different from their Migration period predecessors. The longhouse had, in most regions, undergone a radical transformation or been given up altogether; settlements were increasingly planned and bounded; farming and craft activities, as well as the circulation of goods, showed signs of a wide-ranging reorganization; and elite families had stamped an increasingly separate group identity onto the landscape as they established distinctive settlements and buried their dead in new burial grounds away from the communal cemeteries of their ancestors. While the very nature of archaeological evidence does not permit us to point with certainty to the specific causes which lay behind these changes, the emergence of kingdoms in northwest Europe provides the backdrop against which they can best be understood. The development of early states—specifically in Denmark and England—and the northward expansion of Frankish colonial activities required both increased production and the mobilization of agrarian resources into an increasingly centralized political system. Indeed, an increased emphasis on surplus extraction must lie behind many of the changes observable in the plant and animal remains of this period and in the remnants of craft production, as well as in the greater size and storage capacities of at least some farmsteads in central Jutland, Lower Saxony, Westphalia, and Drenthe.

Author(s):  
Apolline ALFSEN ◽  
Mark BOSSELAERS ◽  
Olivier LAMBERT

In spite of a continuously expanding physeteroid fossil record, our understanding of the origin and early radiation of the two modern sperm whale families Kogiidae Gill, 1871 (including the pygmy and dwarf sperm whales, Kogia spp.) and Physeteridae Gray, 1821 (including the great sperm whale, Physeter Linnaeus, 1758) remains limited, especially due to the poorly resolved phylogenetic relationships of a number of extinct species. Among those, based on fragmentary cranial material from the late early to middle Miocene of Antwerp (Belgium, North Sea basin), the small-sized Thalassocetus antwerpiensis Abel, 1905 has been recognized for some time as the earliest branching kogiid. The discovery of a new diminutive physeteroid cranium from the late Miocene (Tortonian) of Antwerp leads to the description and comparison of a close relative of T. antwerpiensis. Thanks to the relatively young ontogenetic stage of this new specimen, the highly modified plate-like bones making the floor of its supracranial basin could be individually removed, a fact that greatly helped deciphering their identity and geometry. Close morphological similarities with T. antwerpiensis allow for the reassessment of several facial structures in the latter; the most important reinterpretation is the one of a crest-like structure, previously identified as a sagittal facial crest, typical for kogiids, and here revised as the left posterolateral wall of the supracranial basin, comprised of the left nasal (lost in kogiids for which the postnarial region is known) and the left maxilla. Implemented in a phylogenetic analysis, the new anatomical interpretations result in the new Belgian specimen and T. antwerpiensis being recovered as sister-groups in the family Physeteridae. Consequently, the geologically oldest kogiids are now dated from the Tortonian, further extending the ghost lineage separating these early late Miocene kogiid records from the estimated latest Oligocene to earliest Miocene divergence of kogiids and physeterids.


2009 ◽  
Vol 28 ◽  
Author(s):  
Tore Høisæter

Based on literature data and my extensive material from along the coast, the distribution of shell bearing marine, benthic gastropods known from Norwegian waters, is outlined. The geographic area covered goes down to c. 1200 m on the continental slope, and extends from the Swedish border<br />in the south to the Russian border in the north-east. On the slope the distribution is restricted to an area east of 0°, and south of 72° N. Neither the North Sea nor the western ‘slope’ of the Norwegian Trench are included. Systematics and nomenclature follow Clemam (Check List of European Marine Mollusca) closely. The emphasis is on the distribution of each species within the designated area, but taxonomic and nomenclaturial problems are discussed wherever considered relevant. Altogether 365 species level taxa are included, of which 326 are considered as definitely belonging to the Norwegian fauna. The rest are recorded as doubtful, either because only empty shells have been found, or their confirmed distribution falls outside the limits here defined. Of the ‘species’ included, I consider at least 18 to be undescribed, while another 16 were described from Norwegian material after Høisæter (1986) was published. The northern distributional limit is extended for 47 species, while 11 species have received a new southern limit. Sixty six species have a generic name diferent from the one used in Høisæter (1986), while 35 species have another specific name. All changes are listed in the main part of the article, and references are given to the sources for the changes. Four faunal components are recognized: a slope component, species mainly found in negative temperatures on the continental slope, between 500 and 1200 m; an Arctic component, species in Norway almost exclusively found in East Finnmark; a group of species in Norway found only or mainly on the Skagerrak coast or in Oslofjorden; and finally the main group found along most of the coast.


2021 ◽  
Author(s):  
Jozef Skakala ◽  
Jorn Bruggeman ◽  
David Ford ◽  
Stefano Ciavatta

&lt;p&gt;In the presented work we advanced our modelling of in-water optics on the North-West European (NWE) Shelf, with important implications for how we model stratification of the water column, primary productivity, and the underwater radiances. We implement a stand-alone bio-optical module into the existing coupled physical-biogeochemical model configuration. The advantage of the bio-optical module, when compared to the pre-existing light scheme is that it resolves the underwater irradiance spectrally and distinguishes between direct and diffuse downwelling streams. The changed underwater irradiance compares better with both satellite and in-situ observations. We show that both underwater irradiance and model biogeochemistry can be further improved by assimilating suitable ocean-color derived satellite products into the model. We use the light module to introduce feedback from biogeochemistry to physics and demonstrate that the two-way coupled model tends to outperform the one-way coupled model in both physics and biogeochemistry. We discuss the implications of our developments for future modelling of the NWE Shelf.&lt;/p&gt;


Author(s):  
John H. Lienhard

A murderously recurrent theme surfaces as we read the record of technology. It can be decocted into the tidy epigram: “The fastest route to success is through failure. The greatest enemy of success is success.” When my civil engineering colleague Jack Matson recognized the validity of that idea, he began vigorously to promote the concept of intelligent fast failure. He said that we can speed our own creativity if we begin by running through as many wrong or foolish ways of accomplishing our end as we can think of. That process both emboldens us and instructs us in the full range of possibility. Conversely, success that fails to keep the boundaries of error within sight eventually takes itself for granted and leaves us open to failure on a grand scale. We skirted this issue toward the end of Chapter 9; now let us look at it more closely. A story of three bridges helps to expose the complex way in which success and failure work together. Henry Petroski takes us back to the forty-six-mile rail trip from Edinburgh to Dundee, which took half a day in 1870. Passengers had to ride the ferry over two wide fjords, arms of the North Sea slicing into Scotland. They are the Firth of Tay and the Firth of Forth. Then an English engineer, Thomas Bouch, sold backers on the idea of building bridges over those inlets. The first was an immense two-mile bridge over the Firth of Tay. When its eighty-five spans were finished in 1877, they made up the longest bridge in the world, and Queen Victoria knighted Bouch. Disaster followed almost immediately. The Tay Bridge collapsed in 1879, killing seventy-five people. Cost-cutting had yielded a bridge that couldn’t stand up to the wind forces. Bouch died in humiliation four months later. By 1881 the Tay Bridge had been rebuilt with heavy, unbeautiful trusses, and attention turned to the second bridge, the one over the Firth of Forth. The Firth of Forth bridge was to cross where the center of the firth was a mile wide, with only one shallow spot for a central pier.


Author(s):  
Helena Hamerow

In a world in which virtually everyone was a farmer, farming was not an ‘occupation’: the early medieval leod who, on the one hand, was in military service to the king, could also have fields to till. It is perhaps for this reason that, although the Lex Salica deals extensively with farming matters, it contains no term for ‘farmer’. The daily life and world view of early medieval communities were undoubtedly shaped in fundamental ways by the agricultural cycle, yet it is difficult to treat farming activities per se, precisely because there is so little description of everyday activities. Further complicating matters, ancient field systems are notoriously difficult to identify and date, and although animal bones and plant remains survive in relative abundance from this period, agricultural tools are very rarely preserved. Even excavating settlements is unlikely to tell us much about systems of farming. A web of economic and environmental factors underlies the developments in farming practices apparent during the second half of the first millennium ad, and agrarian production remains among the most intractable, yet crucially important, subjects in early medieval studies. This chapter begins with a broad overview of what is known about the agrarian practices of individual communities from archaeological and written sources, and concludes with a consideration of the implications of this evidence for wider social and economic issues. For example, in those regions lying within the former western Empire, how much continuity was there with the late Roman rural economy? When did at least some farms begin regularly to produce a substantial, tradeable, surplus? Finally, how did the intensification of cereal production apparent throughout the North Sea zone relate to changes in the nature of lordship and land tenure? Early medieval law-codes and charters generally have more to say about animal rearing than about crop husbandry and some of this information is remarkably detailed; the Lex Salica, for example, refers to some ten different categories of pig! (Wickham 1985). Some Carolingian charters, furthermore, refer to the relative values of different animals; those for the estates of Werden, for example, state that a cow was worth 8 denarii, as much as a ewe with a lamb, and so on (Wulf 1991).


Zootaxa ◽  
2009 ◽  
Vol 2153 (1) ◽  
pp. 35-54 ◽  
Author(s):  
TOBIAS PFINGSTL ◽  
SYLVIA SCHÄFFER ◽  
ERNST EBERMANN ◽  
GUENTHER KRISPER

Scutovertex arenocolus spec. nov. living in the sandy shore of the Baltic coast is described. Additionally, a closely related species, S. pilosetosus, occurring in marsh habitats of the North Sea coast, is redescribed in detail. Both species show a similar habitus. Scutovertex arenocolus differs from S. pilosetosus in the length of body, cusps and notogastral setae, in the ridge on mentum as well as in a different exochorion structure of the eggs. A morphometric analysis of 14 morphological characters confirmed distinctly shorter cusps and notogastral setae in S. arenocolus. Additionally, a principal component analysis performed with 17 morphological traits provided a clear separation of these two species and of S. minutus. The results of these analyses lead to the conclusion that earlier reports of S. minutus in the coastal zone of the Atlantic, the Baltic and the North Sea should be assigned to the one or the other of these two littoral species.


2012 ◽  
Vol 1 (33) ◽  
pp. 75
Author(s):  
Frank Thorenz ◽  
Holger Blum ◽  
Andreas Kortenhaus

The sandy barrier island of Baltrum is located in the north-western part of the German Federal State Lower Saxony in the North Sea. The north-western part of the island is protected by a dune revetment against storm surges and erosion. In order to determine the functionality and loading of the construction under design storm surge conditions and investigate planning alternatives, numerical modeling of sea state conditions in combination with hydraulical model tests for the construction were executed. Measured overtopping rates of up to 125 l/(s.m) and loads up to 150 kPa showed the necessity to strengthen and heighten the initial construction. A combination of wall elements for wave run-up and overtopping reduction in combination with a crest wall were designed in order to meet the technical demands of coastal defence as well as the touristical needs of an important recreation locality.


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