Distribution and postglacial dispersal of freshwater fishes of Labrador

1986 ◽  
Vol 64 (1) ◽  
pp. 21-31 ◽  
Author(s):  
Geoff A. Black ◽  
J. Brian Dempson ◽  
W. J. Bruce

The voluminous literature on the freshwater and diadromous fishes of Labrador is summarized in distributional maps. A total of 25 obligate freshwater spawning and one catadromous species has been reported. Fishes from Atlantic and Mississippi refugia probably invaded the region from the Great Lakes basin primarily via glacial Lake Barlow-Ojibway, crossing Quebec north of the Otish Mountain to the headwaters of the Churchill River system. Additional dispersal routes existed to the north and south. Euryhaline species from an Atlantic refugium first invaded coastal regions during postglacial depression and marine inundation. Remnants of these occur as landlocked populations. Labrador is divided into three major ichthyogeographic regions based on species distributions and dispersal opportunities. The Churchill River forms one region and is divided into three subregions. Upstream of Churchill Falls there is only one species, which dispersed across Quebec. Downstream areas, including accessible tributaries, have all of the common fishes present in Labrador. Less accessible watersheds south of Churchill River form the third subregion and are limited to fishes with better swimming abilities. The second major region is southeastern Labrador which has euryhaline fishes from Atlantic refugia and three species from Quebec. The third major region is loosely defined as northern Labrador (> 55°N) although it is one of decreasing numbers of species with increasing latitude.

2021 ◽  
pp. 229-241
Author(s):  
Maciej Rak

The article has three goals. The first is to present the history of research on Polish dialectal phrasematics. In particular, attention was paid to the last five years, i.e. the period 2015–2020. The works in question were ordered according to the dialectological key, taking into account the following dialects: Greater Polish, Masovian, Silesian, Lesser Polish, and the North and South-Eastern dialects. The second goal is to indicate the methodologies that have so far been used to describe dialectal phrasematics. Initially, component analysis was used, which was part of the structuralist research trend, later (more or less from the late 1980s) the ethnolinguistic approach, especially the description of the linguistic picture of the world, began to dominate. The third goal of the article is to provide perspectives. The author once again (as he did it in his earlier works) postulates the preparation of a dictionary of Polish dialectal phrasematics.


2020 ◽  
pp. 16-70
Author(s):  
Marijn S. Visscher

The chapter considers the geographical literature of early Seleucid writers. It is argued that the first generation of Seleucid geographers appropriated the eastern regions of the Seleucid Empire with their works, often prioritizing useful political narratives over geographical accuracy. As literature, these works seem inexorably linked to the ambition of the early Seleucid court, especially its desire to assert its dominance over vast and previously unchartered territories. Patrocles, for instance, wrote a description of the coastal regions of the Caspian Sea and the Asian river system, parts of which appear to be pure invention. However, his puzzling claims evoked the image of a world empire stretching as far as the edge of the Ocean, bolstering the prestige of the Seleucids. Another work on the north-eastern regions of the empire, by Demodamas, establishes an image of transcendental rule, an image which he anchors in a specifically Hellenistic view of the succession of empires. Thirdly, Megasthenes used his Indica to convey the idea of imperial domination through knowledge, expressed in a colonial key and backed up by targeted cultural reimaginations and precise measurements. The chapter concludes with a discussion of the challenge to Seleucid geography from Alexandria in the form of Eratosthenes, who overturned the Seleucid knowledge of Asia and India while reflecting a distinctly Ptolemaic view of the world.


2018 ◽  
Vol 27 (2) ◽  
pp. 375-389
Author(s):  
Zbigniew Szafrański

This article recapitulates information available, and mostly not published yet, on the statues in the form of the god Osiris from the Upper (Coronation) and Lower Porticoes of the Temple of Hatshepsut at Deir el-Bahari. This includes the North and South Colossi, both of which were recently restored in a pilot reconstruction project undertaken by the Polish team, revising a missed restoration attempt by earlier excavators. Other examples include a sandstone painted statue of Amenhotep I, from Asasif, in the form of the mummiform figure of the god Osiris, which was also reconstructed, a fragmentary sandstone statue of Amenhotep III in the form of Osiris, as well as two fragments of statues of Osiris from the Third Intermediate Period burial ground discovered in the area of the temple of Hatshepsut.


2016 ◽  
Vol 113 (29) ◽  
pp. 8057-8063 ◽  
Author(s):  
Peter D. Heintzman ◽  
Duane Froese ◽  
John W. Ives ◽  
André E. R. Soares ◽  
Grant D. Zazula ◽  
...  

The Ice Free Corridor has been invoked as a route for Pleistocene human and animal dispersals between eastern Beringia and more southerly areas of North America. Despite the significance of the corridor, there are limited data for when and how this corridor was used. Hypothetical uses of the corridor include: the first expansion of humans from Beringia into the Americas, northward postglacial expansions of fluted point technologies into Beringia, and continued use of the corridor as a contact route between the north and south. Here, we use radiocarbon dates and ancient mitochondrial DNA from late Pleistocene bison fossils to determine the chronology for when the corridor was open and viable for biotic dispersals. The corridor was closed after ∼23,000 until 13,400 calendar years ago (cal y BP), after which we find the first evidence, to our knowledge, that bison used this route to disperse from the south, and by 13,000 y from the north. Our chronology supports a habitable and traversable corridor by at least 13,000 cal y BP, just before the first appearance of Clovis technology in interior North America, and indicates that the corridor would not have been available for significantly earlier southward human dispersal. Following the opening of the corridor, multiple dispersals of human groups between Beringia and interior North America may have continued throughout the latest Pleistocene and early Holocene. Our results highlight the utility of phylogeographic analyses to test hypotheses about paleoecological history and the viability of dispersal routes over time.


1963 ◽  
Vol 95 (11) ◽  
pp. 1217-1223 ◽  
Author(s):  
R. F. Morris

AbstractNorthern and southern specimens of the fall webworm in eastern North America exhibit color differences in both the adult and larval stages, and have often been referred to Hyphantria textor Harris and H. cunea Drury, respectively. However, they will readily inter-breed and produce viable offspring; differences in wing maculation are not discrete and genitalic differences have not been found; differences in the degree of larval pigmentation are not discrete and depend largely on environmental factors; and the nesting and feeding behaviors are similar. It is therefore concluded that the common webworm (larvae with the head and dorsal tubercles black) in both north and south should be referred to H. cunea, which has priority. A sibling species or race (lighter heads and tubercles and different nesting and feeding habits) occurs sympatrically with cunea in the south and also, rarely, in the north; if it has specific status it cannot be referred to either cunea or textor; so textor is relegated to synonymy.


1911 ◽  
Vol 8 (9) ◽  
pp. 403-406
Author(s):  
J. Wilfrid Jackson

In the course of working through the large collection of Coal-measure fossils in the Manchester Museum I have recently discovered a number of interesting, and hitherto unrecorded, forms from the well-known ‘Marine Band’ in the Middle Coal-measures of Ashton-under-Lyne. The most interesting of these additions is undoubtedly Archæocidaris, a genus which is not at all common in the Coal-measures of this country, though fairly abundant in North America. Hitherto it has only been recorded from the North and South Staffordshire Coal-fields; its discovery, therefore, at Ashton constitutes the third record for the British Isles.


1906 ◽  
Vol 3 ◽  
pp. 213-271
Author(s):  
H. Stuart Jones

§ I.—That the three historical reliefs, of which two are immured in the north and south walls of the portico of the Villa Borghese, while the third rests on the ground to the left of the entrance, once belonged to a triumphal arch erected by Claudius in commemoration of his conquest of Britain, seems to be the accepted belief at the present time. The reliefs are published under this title in Brunn-Bruckmann's Denkmäler; their provenance from the Arch of Claudius is affirmed without question by Helbig in his guide to the Roman collections, and has been assumed in all recent discussions of the history of Roman art. Nevertheless it has no foundation, save in a conjecture of Nibby, contained in his Monumenti scelti della Villa Borghese, a work published in 1832. The Villa had been stripped of its principal treasures during the Napoleonic period—when some scores of statues and reliefs found their way to Paris, and now form no inconsiderable portion of the sculptures of the Louvre—and their places were partly filled by less important works gathered from the gardens of the Villa and from the other properties of the Borghese. It was thus that the reliefs in question came to be employed in the decoration of the portico; up till that time they had, as it would appear, lain neglected and scarcely noticed in the gardens of the Villa.


Author(s):  
А.Х. ХАДИКОВА

Статья посвящена историко-антропологическому анализу «этнического пространства» — понятия, повсеместно употребляемого, но не имеющего в этнологии определен- ного категориального статуса. В статье обосновывается необходимость нового осмысления учеными-этнологами многих этнических концептов в применении к конкретным народам. Специфика, сущность и содержание концепта «этническое пространство», его связь с процессами этнической самоидентификации осетин исследуется посредством двух направлений научного поиска. Первое — уточнение содержания самого понятия, второе — выявление способов его актуализации в этнической реальности осетинского этноса. Опираясь на собственный исследовательский опыт, автор утверждает, что по смысловой наполненности, структуре и инструментальной функциональности понятие «этническое пространство» соотносится с феноменом этничности и полностью его вбирает. Более того, концепт «этническое пространство / поле» содержит перспективу подъема этничности с ее конвертацией в политическую активность. У осетин качество главных маркеров индивидуальной и коллективной этнической идентичности, основных концептов этничности, очерчивающих «границы» этнического пространства, обрели реликты социогуманитарной сферы. Своеобразным «гарантом» категории этнического пространства у осетин является феномен исторической памяти. Основные ценности и символы этничности соотносимы с теми компонентами общего культурного поля, которые можно считать «доразделенными» и которые в наивысшей степени отражают обстоятельства исторического пути этого народа, включая самые ранние его этапы. В «своей» этнической среде они тесно связаны с представлениями о насущных и долгосрочных этнических интересах, и в определенных обстоятельствах именно они могут стать частью общей национальной идеи северных и южных осетин. The article is devoted to the historical and anthropological analysis of «ethnic space “ — a concept that is widely used, but does not have a certain categorical status in Ethnology. The article substantiates the need for a new understanding of many ethnic concepts by ethnologists in the application to specific peoples. The specificity, essence and content of the concept «ethnic space», its connection with the processes of ethnic self-identification of Ossetians is studied through two directions of scientific research. The first is to clarify the content of the concept, the second — to identify ways of its actualization in the ethnic reality of a particular Ossetian ethnic group. Based on his own research experience, the author argues that the semantic content, structure and instrumental functionality of the concept of «ethnic space» is correlated with the phenomenon of ethnicity and completely absorbs it. Moreover, the concept of «ethnic space / field» incorporates the prospect of the rise of ethnicity, the actualization of which is fraught with turning to political activity. The quality of the main markers of individual and collective ethnic identity, the basic concepts of ethnicity, outlining the «borders» of ethnic space have acquired relics of the socio-humanitarian sphere. A kind of «guarantor» of the category of ethnic space of the Ossetians is the phenomenon of historical memory. The main values and symbols of ethnicity are correlated with those components of the common cultural field, which can be considered «divided» and which reflect the circumstances of the historical path of this people, including its earliest stages. In their «own» ethnic environment, they are closely related to the ideas of vital and long-term ethnic interests, and in certain circumstances they can become part of the national idea of the North and South Ossetians.


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