scholarly journals Coastal Evolution Over the Past 3000 Years at Conrads Beach, Nova Scotia: the Influence of Local Sediment Supply on a Paraglacial Transgressive System

2015 ◽  
Vol 39 (2) ◽  
pp. 363-384 ◽  
Author(s):  
Tanya C. Forde ◽  
Mladen R. Nedimović ◽  
Martin R. Gibling ◽  
Donald L. Forbes
Keyword(s):  
Nova Scotia ◽  
Sediment Supply ◽  
Coastal Evolution ◽  
The Past

scholarly journals I.—A Retrospect of Palaeontology in the Last Forty Years

1904 ◽  
Vol 1 (4) ◽  
pp. 145-157
Author(s):  
H. W.
Keyword(s):  
New Zealand ◽  
Nova Scotia ◽  
Past Century ◽  
Air Breathing ◽  
The Past ◽  
Coal Measures

Reptilia et Aves.—Our two greatest Anatomists of the past century, Owen and Huxley, both contributed to this section of our palaelig;ozoological record. Owen (in 1865) described some remains of a small air-breathing vertebrate, Anthrakerpeton crassosteum, from the Coal-shales of Glamorganshire, corresponding with those described by Dawson from the Coal-measures of Nova Scotia; and in 1870 he noticed some remains of Plesiosaurus Hoodii (Owen) from New Zealand, possibly of Triaasic age.

Coastal dune mobility over the past century: A global review

2020 ◽  
Vol 44 (6) ◽  
pp. 814-836 ◽  
Author(s):  
Jinjuan Gao ◽  
David M Kennedy ◽  
Teresa M Konlechner
Keyword(s):  
Human Activities ◽  
Vegetation Cover ◽  
Dominant Role ◽  
Coastal Dunes ◽  
Mediterranean Area ◽  
Global Scale ◽  
Coastal Dune ◽  
Sediment Supply ◽  
Past Century ◽  
The Past

The mobility of coastal dunes is characterised by bio-geomorphological responses related to change in boundary conditions, particularly sediment supply, wind and vegetation cover, as well as human activities. There remains uncertainty regarding the relative importance of these drivers on dune mobility at a global scale. In this study, trends and dominant drivers of coastal dune mobility are synthesised through the literature review focusing on shifts in dune mobility over the last century (1870–2018). In total, 176 individual dunes, with 55 dunes from the Europe-Mediterranean area, 23 from Africa, 30 from North America, 23 from South America, 20 from Oceania and 23 from Asia, are reviewed in this work. The results show that there is a worldwide trend of dune stabilisation, with 93% (164 out of 176) of the reviewed sites showing a loss of bare sand area due to an increase in vegetation cover and urbanisation expansion. Multiple factors have contributed to the stabilisation process, including (a) land-use change such as the change of traditional farming practises, coastal urbanisation and tourism development; (b) dune stabilisation projects; (c) sediment decline caused by the riverine and coastal constructions; and (d) change in climate (i.e. the decrease in windiness, and the increase in temperature and rainfall) and storms. Our results suggest human intervention played a dominant role in altering dune mobility for most dunes during the past century, while climate and storms are also important drivers, especially for dune sites with limited human activities.

Notes on a Collection of Dragonflies (Odonata) from Nova Scotia

1950 ◽  
Vol 82 (9) ◽  
pp. 190-194 ◽  
Author(s):  
Carl Cook
Keyword(s):  
Nova Scotia ◽  
Geographical Distribution ◽  
New Records ◽  
Maritime Provinces ◽  
The Past ◽  
Annotated List

During the past four years Mr. Douglas C. Ferguson has collected dragonflies in Nova Scotia thereby greatly increasing our knowledge of the geographical distribution of these insects within the province. He very generously presented to the writer his entire collections comprising 327 specimens of 51 species, four of these being new records for the Maritime Provinces and two others being new for Nova Scotia. In the annotated list of species below these new records are indicated as follows: New records for the Maritime Provinces are indicated by a double asterisk (**). Records which are new for Nova Scotia only, are indicated by a single asterisk (*). A better representation of the widely distributed northern genus Somatochlora whould have been expected in a collection of this size made from the territory covered, in view of the fact that at least eight species are known to occur in thls territory. The reasons for their escaping capture is doubtless due, in part, to the restricted habitat occupied by many of the species, and in part to the difficulty of collecting specimens.

Bertrand Russell (1872-1970) after twenty years

1990 ◽  
Vol 44 (2) ◽  
pp. 280-306 ◽  
Keyword(s):  
Nova Scotia ◽  
Historical Research ◽  
Bertrand Russell ◽  
British History ◽  
Arithmetical Property ◽  
The Past ◽  
History Of ◽  
The Subject ◽  
Long Life ◽  
The Many

1990 marks the vicesenary of the death of Bertrand Russell, in his 98th year; and this arithmetical property is sufficient reason to review the historical research that has been published on his life and work during the past 20 years. During his long life he had already become the subject of historical research in many of his activities; but this interest accelerated considerably around the time of his death because in the mid 1960s he had decided to sell the bulk of his manuscripts, to raise money to finance his current projects. One of these was the series of conferences financed by the Canadian industrialist Cyrus Eaton, which began at his birthplace of Pugwash, in Nova Scotia. An alumnus of McMaster University at Hamilton, Ontario, Eaton announced that he would put forward a considerable sum of his own money if the papers went to McMaster. Some deft work by the librarian there secured the rest of the required capital, and the papers were purchased in 1968. Thus was created the ‘Bertrand Russell Archives’, as Russell insisted it be called, rejecting the original appellation of ‘Archive’; it is a major resource for British history of Russell’s time, and for the many other concerns in which he was involved. Soon after its launch in 1972, the first Russell conference at McMaster took place, to commemorate the centenary of his birth; its proceedings were published as a book four years later.

scholarly journals GEOLOGICAL CONTROLS ON PROCESS-RESPONSE, S.E. AUSTRALIA

1980 ◽  
Vol 1 (17) ◽  
pp. 56
Author(s):  
P.S. Roy ◽  
A.W. Stephens
Keyword(s):  
Sediment Characteristics ◽  
Coastal Evolution ◽  
Sediment Budgets ◽  
The Past ◽  
Nearshore Sediments ◽  
Induced Currents ◽  
Wave Induced ◽  
Incident Waves ◽  
Inner Continental Shelf ◽  
Incident Wave Energy

Results of regional geological studies on the southeastern Australian coast and inner continental shelf suggest that broad relationships between nearshore sediments and morphologies are often the result of factors other than incident waves and wave-induced currents. Five main factors (including wave action) have been identified: 1. degree of compartmentization and sand bypassing, 2. incident wave energy, 3. offshore sand loss to deep water sinks, 4. inherited sediment characteristics, and 5. substrate control. It is thought that these factors have controlled coastal evolution in the past and also influence present-day coastal changes. Identification of the role played by individual factors in specific areas provides valuable information on coastal sediment budgets.

scholarly journals WOODVILLE ICE CAVE (HANTS COUNTY, NOVA SCOTIA) AND NOTES ON THE ‘ICE CAVES’ OF THE MARITIME PROVINCES

2007 ◽  
Vol 44 (1) ◽  
Author(s):  
M. Moseley
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Cold Storage ◽  
Maritime Provinces ◽  
The Past ◽  
Perennial Ice ◽  
Snow And Ice

Several caves and sinkholes where snow and ice persist well into the summer exist in Nova Scotia and New Brunswick. In the past they were sometimes used as a source of ice or for cold storage, and are known locally as ‘ice caves’ or ‘ice holes’. Although they are not true ice caves in the speleological sense of the term because they do not contain perennial ice, they are very similar. Woodville Ice Cave in Hants County, Nova Scotia, described here, is a particularly good example. Invertebrates and bats recorded from such sites are briefly discussed and the possibility of finding psychrophilic fauna in them is suggested.Plusieurs grottes et dolines sont présentes là où la neige et la glace ne disparaissent que tard durant l’été en Nouvelle‑Écosse et au Nouveau-Brunswick. Autrefois, elles étaient parfois utilisées comme sources de glace ou aux fins d’entreposage sous froid. À l’échelle locale, elles sont connues sous le nom de glacières ou de puits de neige. Elles ne sont pas de véritables glacières au sens habituel dans le domaine de la spéléologie parce qu’elles ne contiennent pas de glace pérenne, mais elles sont très semblables. La grotte Woodville (Woodville Ice Cave) dans le comté de Hants (N.-É.) décrite dans leprésent document, est un très bon exemple. Nous discutons brièvement des invertébrés et des chauves‑souris observés dans de telles grottes et dolines, et nous suggérons qu’il est peut-être possible d’y observer des organismes psychrophiles.

scholarly journals Sedimentary Responses to Climate Changes and Human Activities Over the Past 7400 Years in the Western Sunda Shelf

2021 ◽  
Vol 9 ◽  
Author(s):  
Kaikai Wu ◽  
Xuefa Shi ◽  
Zhanghua Lou ◽  
Bin Wu ◽  
Jingrui Li ◽  
...  
Keyword(s):  
Grain Size ◽  
Human Activities ◽  
Chemical Weathering ◽  
Climate Changes ◽  
Sediment Supply ◽  
Initial Time ◽  
Sunda Shelf ◽  
The Past ◽  
Terrigenous Input ◽  
Erosion Processes

High-resolution records of grain size, major and trace elements, and Sr-Nd isotopes of Core K17 from the western Sunda Shelf were investigated to evaluate the response of weathering and terrigenous input to climatic changes and human activities over the past 7400 years. Sr-Nd isotopic results indicate that the Kelantan River is the main source of sedimentary material in the study core since the mid-Holocene. Chemical weathering levels are represented by the chemical index of alteration (CIA), αAlNa, and K2O/Al2O3 ratios; and geochemical and grain size proxies (including TiO2/CaO, Rb/Sr ratios, and grain size end-member) were used to establish variations of terrigenous input into the study core since 7400 cal yr BP. Based on these records, the evolution of weathering and terrigenous input processes in the western Sunda Shelf can be divided into four stages. During stage 1 (7400–3700 cal yr BP), increasing precipitation and decreasing temperature jointly balanced the relatively stable weathering and terrigenous sediment supply. Dramatically decreasing weathering rates were consistent with less rainfall and lower temperatures during stage 2 (3700–2600 cal yr BP). Heavy rainfall played a more important role than low temperature in controlling weathering and erosion, leading to increasing terrigenous input in stage 3 (2700–1600 cal yr BP). Because of the decoupling between weathering, erosion, and climate in the late Holocene (stage 4, since 1600 cal yr BP), increasing agriculture and related human activities likely dominated weathering and erosion relative to climate changes. Furthermore, the initial time at which human activity overwhelmed natural processes in the southern South China Sea (SCS) is similar to that in the northern SCS. Our results highlight that human activities during the past 1600 years have gradually overwhelmed natural climatic controls on weathering and erosion processes in the western Sunda Shelf.

scholarly journals FIRST VERIFIED RECORD FOR SHORTNOSE STURGEON, Acipenser brevirostrum LeSueur, 1818, IN MINAS BASIN, BAY OF FUNDY, NOVA SCOTIA, CANADA

2013 ◽  
Vol 47 (2) ◽  
Author(s):  
Michael J. Dadswell ◽  
George Nau ◽  
Michael J.W. Stokesbury
Keyword(s):  
Nova Scotia ◽  
New Record ◽  
Fork Length ◽  
Fish Fauna ◽  
Bay Of Fundy ◽  
Shortnose Sturgeon ◽  
Acipenser Brevirostrum ◽  
The Past ◽  
Photographic Evidence ◽  
Fish Weir

A shortnose sturgeon was caught in fisherman Wayne Linkletter’s intertidal fish weir in Minas Basin near Economy, Nova Scotia, on June 29, 2013. It was an adult, 73.7 cm fork length and weighed ~4.5 kg. Fishers in Minas Basin relate that they have captured shortnose sturgeons in their weirs in the past decade (1 or 2 fish/y) but this is the first sighting verified by photographic evidence. In Canada shortnose sturgeons were previously known only from the Saint John River and Harbour. The new record extends the coastal range of the species by approximately 165 km and is a new addition to the fish fauna of Nova Scotia.

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