Protalus ramparts and the altitude of the local equilibrium line during the last glacial stage in Bokspruit, East Cape Drakensberg, South Africa
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6694 , http://hdl.handle.net/10962/d1006729
- Description: A ridge of unconsolidated debris at an altitude of 2000 m, located beneath cliffs in the East Cape Drakensberg of South Africa, is interpreted on morphological and sedimentological evidence as a protalus rampart. The rampart is believed to have formed in the Bottelnek Stadial, after 27 000 BP and before 13 000 BP, and provides evidence of perennial snowbeds and at least discontinuous permafrost in the East Cape Drakensberg during that Stadial.
- Full Text:
- Date Issued: 1994
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6694 , http://hdl.handle.net/10962/d1006729
- Description: A ridge of unconsolidated debris at an altitude of 2000 m, located beneath cliffs in the East Cape Drakensberg of South Africa, is interpreted on morphological and sedimentological evidence as a protalus rampart. The rampart is believed to have formed in the Bottelnek Stadial, after 27 000 BP and before 13 000 BP, and provides evidence of perennial snowbeds and at least discontinuous permafrost in the East Cape Drakensberg during that Stadial.
- Full Text:
- Date Issued: 1994
Radiocarbon dates and the Late Quaternary palaeogeography of the Province of the Eastern Cape, South Africa
- Authors: Lewis, Colin A
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6693 , http://hdl.handle.net/10962/d1006728
- Description: A total of 193 dates are listed from the Eastern Cape. Middle Stone Age hunter-gatherers existed in the Drakensberg prior to the rigours of cold climatic conditions after ca. 22,000 BP. These uplands were reoccupied under more favourable climatic conditions after ca. 12,600 BP but were apparently abandoned between ca. 6000 BP and 3000 BP. Hunter-gatherer occupation throughout the Holocene is indicated at lower altitudes, with in-migration of pastoralists ca. 1800 BP in the Fish River area, and with Iron Age farmers entering coastal districts and adjacent river valleys from ca. 1400 BP. Sand dunes accumulated in the Holocene adjacent to the Indian Ocean. Flood plain development in the early Holocene was succeeded by incision of rivers in the later Holocene. Flood plain deposition began again in the Southern Drakensberg ca. 1000 BP. Palynological studies evidence marked climatic oscillations around the Late Glacial/Holocene boundary, with apparent stability at high altitude subsequent to 2700 BP.
- Full Text:
- Date Issued: 2002
- Authors: Lewis, Colin A
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6693 , http://hdl.handle.net/10962/d1006728
- Description: A total of 193 dates are listed from the Eastern Cape. Middle Stone Age hunter-gatherers existed in the Drakensberg prior to the rigours of cold climatic conditions after ca. 22,000 BP. These uplands were reoccupied under more favourable climatic conditions after ca. 12,600 BP but were apparently abandoned between ca. 6000 BP and 3000 BP. Hunter-gatherer occupation throughout the Holocene is indicated at lower altitudes, with in-migration of pastoralists ca. 1800 BP in the Fish River area, and with Iron Age farmers entering coastal districts and adjacent river valleys from ca. 1400 BP. Sand dunes accumulated in the Holocene adjacent to the Indian Ocean. Flood plain development in the early Holocene was succeeded by incision of rivers in the later Holocene. Flood plain deposition began again in the Southern Drakensberg ca. 1000 BP. Palynological studies evidence marked climatic oscillations around the Late Glacial/Holocene boundary, with apparent stability at high altitude subsequent to 2700 BP.
- Full Text:
- Date Issued: 2002
Recognition and development of the Irish Draught horse
- Authors: Lewis, Colin A
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:6728 , http://hdl.handle.net/10962/d1007163
- Description: The number of horses in Ireland had shown remarkable consistency from 1861 until just before 1951. Between the end of the Second World War and 1951 there was a rapid decrease in the number of working horses, and the rate of the decrease accelerated during the decade of the 1950s and the early 1960s. Throughout the 1960s popular emphasis was placed on mechanisation, as if there were no role for the horse as a working animal. Even the production of pleasure horses seems to have been initially regarded as of little value. The 1970s were a sad period for both light and heavy draught horses in County Cork, as in the rest of Ireland. With increased mechanisation, the market for heavy draught animals which had previously dominated transport in the city of Cork, came to an end. There was a great danger that the Irish Draught would soon become extinct, so the formation of the Irish Draught Horse Society in 1976 was of great importance for the development of the Irish Draught as a breed. In 1982 this society published the "Breed Standard and Guideline", the first time that an official standard had been published for an Irish Draught. Despite various schemes during the 1980s and 1990s designed to increase the number and improve the quality of the Irish Draught horse population, it is, at the beginning of the 21st Century, one of the world's endangered breeds.
- Full Text: false
- Date Issued: 2005
- Authors: Lewis, Colin A
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:6728 , http://hdl.handle.net/10962/d1007163
- Description: The number of horses in Ireland had shown remarkable consistency from 1861 until just before 1951. Between the end of the Second World War and 1951 there was a rapid decrease in the number of working horses, and the rate of the decrease accelerated during the decade of the 1950s and the early 1960s. Throughout the 1960s popular emphasis was placed on mechanisation, as if there were no role for the horse as a working animal. Even the production of pleasure horses seems to have been initially regarded as of little value. The 1970s were a sad period for both light and heavy draught horses in County Cork, as in the rest of Ireland. With increased mechanisation, the market for heavy draught animals which had previously dominated transport in the city of Cork, came to an end. There was a great danger that the Irish Draught would soon become extinct, so the formation of the Irish Draught Horse Society in 1976 was of great importance for the development of the Irish Draught as a breed. In 1982 this society published the "Breed Standard and Guideline", the first time that an official standard had been published for an Irish Draught. Despite various schemes during the 1980s and 1990s designed to increase the number and improve the quality of the Irish Draught horse population, it is, at the beginning of the 21st Century, one of the world's endangered breeds.
- Full Text: false
- Date Issued: 2005
Ringing the changes
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6185 , http://hdl.handle.net/10962/d1012383
- Description: The restoration of the bells of the Grahamstown Cathedral heralds a new interest in bell-ringing in South Africa. Although the music of ringing bells is part of our heritage, few people know much about the development, or even the rules of change ringing. This is the form of ringing typical of Britain and, increasingly, of Australia, New Zealand, U.S.A., Canada, and southern Africa. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 1994
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6185 , http://hdl.handle.net/10962/d1012383
- Description: The restoration of the bells of the Grahamstown Cathedral heralds a new interest in bell-ringing in South Africa. Although the music of ringing bells is part of our heritage, few people know much about the development, or even the rules of change ringing. This is the form of ringing typical of Britain and, increasingly, of Australia, New Zealand, U.S.A., Canada, and southern Africa. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 1994
Swansea & Brecon Guild : prelude, the Bevan family, and the first and anniversary peals
- Authors: Lewis, Colin A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6193 , http://hdl.handle.net/10962/d1013420 , http://www.ringingworld.co.uk
- Description: [From Conclusion] The Swansea & Brecon Guild owes its foundation largely to the interest of the first Bishop of the Diocese: Edward Bevan, in bells, ringers and ringing. The first peal for the Guild was rung at Talgarth by members of that tower, conducted by Louis Griffiths. The anniversary peal was also rung at Talgarth and consisted of the methods and variations that were probably rung in the original peal. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2013
- Authors: Lewis, Colin A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6193 , http://hdl.handle.net/10962/d1013420 , http://www.ringingworld.co.uk
- Description: [From Conclusion] The Swansea & Brecon Guild owes its foundation largely to the interest of the first Bishop of the Diocese: Edward Bevan, in bells, ringers and ringing. The first peal for the Guild was rung at Talgarth by members of that tower, conducted by Louis Griffiths. The anniversary peal was also rung at Talgarth and consisted of the methods and variations that were probably rung in the original peal. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2013
Terracettes and active gelifluction terraces in the Drakensberg of the Province of Eastern Cape, South Africa: a process study
- Authors: Kück, K M , Lewis, Colin A
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6688 , http://hdl.handle.net/10962/d1006706
- Description: Terracettes and turf-banked terraces exist at Tiffindell Ski Resort in the Drakensberg of the Province of the Eastern Cape at altitudes between 2750 m and 2880 m on slopes of between 15°and 26°. Ice lenses and interstitial ice exist within turf-banked terraces in winter. During post-winter thaws, soil moisture reaches saturation in at least the upper part of the regolith in which turf-banked terraces occur. These terraces move downslope under the influence of gelifluction (which is essentially a combination of frost creep and solifluction). Terracettes appear to move as a result of frost creep, processes associated with needle ice, and slope wash. Both turf-banked terraces and terracettes are part of the periglacial environment and are active under present climatic conditions at Tiffindell.
- Full Text:
- Date Issued: 2002
- Authors: Kück, K M , Lewis, Colin A
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6688 , http://hdl.handle.net/10962/d1006706
- Description: Terracettes and turf-banked terraces exist at Tiffindell Ski Resort in the Drakensberg of the Province of the Eastern Cape at altitudes between 2750 m and 2880 m on slopes of between 15°and 26°. Ice lenses and interstitial ice exist within turf-banked terraces in winter. During post-winter thaws, soil moisture reaches saturation in at least the upper part of the regolith in which turf-banked terraces occur. These terraces move downslope under the influence of gelifluction (which is essentially a combination of frost creep and solifluction). Terracettes appear to move as a result of frost creep, processes associated with needle ice, and slope wash. Both turf-banked terraces and terracettes are part of the periglacial environment and are active under present climatic conditions at Tiffindell.
- Full Text:
- Date Issued: 2002
The bells of Jamestown, South Atlantic Ocean
- Authors: Lewis, Colin A
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6177 , http://hdl.handle.net/10962/d1012370 , http://www.ringingworld.co.uk
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2004
- Authors: Lewis, Colin A
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6177 , http://hdl.handle.net/10962/d1012370 , http://www.ringingworld.co.uk
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2004
The bells of north western Transkei, South Africa
- Authors: Lewis, Colin A
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6183 , http://hdl.handle.net/10962/d1012379 , http://www.ringingworld.co.uk
- Description: [From Introduction] Few of the many visitors to South Africa journey into the isolated country east of Queenstown and south of Elliot, in the rugged basin and range country of that part of the Transkei. That is largely a forgotten land, hidden south of the Mount Arthur range from the rolling grasslands of the Drakensburg foothills and their commercial farms. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2004
- Authors: Lewis, Colin A
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6183 , http://hdl.handle.net/10962/d1012379 , http://www.ringingworld.co.uk
- Description: [From Introduction] Few of the many visitors to South Africa journey into the isolated country east of Queenstown and south of Elliot, in the rugged basin and range country of that part of the Transkei. That is largely a forgotten land, hidden south of the Mount Arthur range from the rolling grasslands of the Drakensburg foothills and their commercial farms. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2004
The geomorphological evolution of the area between Grahamstown and the Indian Ocean
- Authors: Lewis, Colin A
- Date: 1995
- Language: English
- Type: Book
- Identifier: vital:6709 , http://hdl.handle.net/10962/d1006746 , ISBN 0868102776
- Description: [From the introduction]: The landforms of the Albany, Alexandria and Bathurst Districts in the area between Grahamstown and the sea are the product of many different geomorphological processes that have operated for well over 150 million years. The evolution of landforms normally occurs over a very long time and is usually highly complex. As a result it is difficult for a human being, whose allocated span on Earth is of the order of three score years and ten, to appreciate the time involved in their formation. The purpose of this booklet is to indicate the ways in which the present landforms of the area may have evolved. Much research is still needed in order to determine exactly how and when various features developed. In some cases a number of hypotheses exist in order to explain the evolution of a particular feature or region. Consequently it has proved necessary to present more than one interpretation of the devlopment of certain phenomena. This booklet must therefore be regarded as an introduction to the geomorphological development of the area between Grahamstown and the Indian Ocean rather than a definitive statement of the geomorphological evolution of that area.
- Full Text: false
- Date Issued: 1995
- Authors: Lewis, Colin A
- Date: 1995
- Language: English
- Type: Book
- Identifier: vital:6709 , http://hdl.handle.net/10962/d1006746 , ISBN 0868102776
- Description: [From the introduction]: The landforms of the Albany, Alexandria and Bathurst Districts in the area between Grahamstown and the sea are the product of many different geomorphological processes that have operated for well over 150 million years. The evolution of landforms normally occurs over a very long time and is usually highly complex. As a result it is difficult for a human being, whose allocated span on Earth is of the order of three score years and ten, to appreciate the time involved in their formation. The purpose of this booklet is to indicate the ways in which the present landforms of the area may have evolved. Much research is still needed in order to determine exactly how and when various features developed. In some cases a number of hypotheses exist in order to explain the evolution of a particular feature or region. Consequently it has proved necessary to present more than one interpretation of the devlopment of certain phenomena. This booklet must therefore be regarded as an introduction to the geomorphological development of the area between Grahamstown and the Indian Ocean rather than a definitive statement of the geomorphological evolution of that area.
- Full Text: false
- Date Issued: 1995
The glaciations of Wales and adjacent areas, Introduction and Chapter 8: The upper Wye and USK regions
- Lewis, Colin A, Thomas, G S P
- Authors: Lewis, Colin A , Thomas, G S P
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:6727 , http://hdl.handle.net/10962/d1007160
- Description: [From the preface]: The landscapes of Wales and adjacent areas have been profoundly influenced by glaciation. Much attention has been paid to the origins of the Welsh landscape, and, especially, to its morphology. This book, like its predecessor, "The glaciations of Wales and adjoining regions", published in 1970, aims to encourage and guide further research into the glacial history of Wales and its borderlands. [From Chapter 8]: Mid-Wales was probably glaciated on at least two occasions during the Pleistocene. The glacial sediments and landforms discussed in this chapter appear to be of Late Devensian age. The scale of glaciation during the Late Devensian varied from ice-sheet to cirque glacier in size. During glaciation the mid-Wales ice-sheet shrank to become two major valley glaciers, those of the Wye and the Usk. The age of deglaciation, especially in the Wye drainage basin, is a matter for debate and much absolute dating is still needed.
- Full Text:
- Date Issued: 2005
- Authors: Lewis, Colin A , Thomas, G S P
- Date: 2005
- Language: English
- Type: Book chapter
- Identifier: vital:6727 , http://hdl.handle.net/10962/d1007160
- Description: [From the preface]: The landscapes of Wales and adjacent areas have been profoundly influenced by glaciation. Much attention has been paid to the origins of the Welsh landscape, and, especially, to its morphology. This book, like its predecessor, "The glaciations of Wales and adjoining regions", published in 1970, aims to encourage and guide further research into the glacial history of Wales and its borderlands. [From Chapter 8]: Mid-Wales was probably glaciated on at least two occasions during the Pleistocene. The glacial sediments and landforms discussed in this chapter appear to be of Late Devensian age. The scale of glaciation during the Late Devensian varied from ice-sheet to cirque glacier in size. During glaciation the mid-Wales ice-sheet shrank to become two major valley glaciers, those of the Wye and the Usk. The age of deglaciation, especially in the Wye drainage basin, is a matter for debate and much absolute dating is still needed.
- Full Text:
- Date Issued: 2005
The Guild comes of age! Peals and quarters at South African Guild meetings, 1988-2008. Part 1
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6187 , http://hdl.handle.net/10962/d1012386
- Description: The founding meeting of the South African Guild was held in Grahamstown during the first weekend of July 1988. Dedication of the bells and new frame at Grahamstown cathedral marked the completion of the first Guild project to ensure that all rings of bells in South Africa were in good condition. This first part of the article takes us up to the completion of the Grahamstown restoration. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2008
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6187 , http://hdl.handle.net/10962/d1012386
- Description: The founding meeting of the South African Guild was held in Grahamstown during the first weekend of July 1988. Dedication of the bells and new frame at Grahamstown cathedral marked the completion of the first Guild project to ensure that all rings of bells in South Africa were in good condition. This first part of the article takes us up to the completion of the Grahamstown restoration. , Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2008
The Johannesburg project
- Authors: Lewis, Colin A
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6167 , http://hdl.handle.net/10962/d1012355
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2006
- Authors: Lewis, Colin A
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6167 , http://hdl.handle.net/10962/d1012355
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 2006
The Late Glacial and Holocene avifauna of the island of St Helena, South Atlantic Ocean
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6702 , http://hdl.handle.net/10962/d1006738
- Description: Bird bones from unconsolidated sediments provide a record of the changing avifauna of St Helena from the Late Glacial, at ~ 14000BP, until the present. Changes in avifauna apparently reflect climatic and associated ecological conditions, as well as the effects of human occupation since the island was discovered in 1502. Introduced mammals decimated birds in the seventeenth century and seven endemic species are now extinct, while seven other species are locally extinct. At least nine species that now breed on St Helena have been introduced anthropogenically to the island since it was discovered. The failure to find evidence of native songbirds in the former woodlands of the interior of the island deserves explanation.
- Full Text:
- Date Issued: 2008
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6702 , http://hdl.handle.net/10962/d1006738
- Description: Bird bones from unconsolidated sediments provide a record of the changing avifauna of St Helena from the Late Glacial, at ~ 14000BP, until the present. Changes in avifauna apparently reflect climatic and associated ecological conditions, as well as the effects of human occupation since the island was discovered in 1502. Introduced mammals decimated birds in the seventeenth century and seven endemic species are now extinct, while seven other species are locally extinct. At least nine species that now breed on St Helena have been introduced anthropogenically to the island since it was discovered. The failure to find evidence of native songbirds in the former woodlands of the interior of the island deserves explanation.
- Full Text:
- Date Issued: 2008
The remains of rock glaciers in Bottelnek, East Cape Drakensberg, South Africa
- Lewis, Colin A, Hanvey, Patricia M
- Authors: Lewis, Colin A , Hanvey, Patricia M
- Date: 1993
- Language: English
- Type: Article
- Identifier: vital:6698 , http://hdl.handle.net/10962/d1006734
- Description: Certain debris accumulations in Bottelnek are ascribed a rock glacier origin on the basis of morphological and sedimentological evidence. Radiocarbon dating indicates that rock glaciers were active at or subsequent to 21 000 BP and that cold, stadial conditions, existed on the region after 27 000 BP and before 13 000 BP, during the Bottelnek Stadial. At least sporadic permafrost existed in Bottelnek when the rock glaciers were active.
- Full Text: false
- Date Issued: 1993
- Authors: Lewis, Colin A , Hanvey, Patricia M
- Date: 1993
- Language: English
- Type: Article
- Identifier: vital:6698 , http://hdl.handle.net/10962/d1006734
- Description: Certain debris accumulations in Bottelnek are ascribed a rock glacier origin on the basis of morphological and sedimentological evidence. Radiocarbon dating indicates that rock glaciers were active at or subsequent to 21 000 BP and that cold, stadial conditions, existed on the region after 27 000 BP and before 13 000 BP, during the Bottelnek Stadial. At least sporadic permafrost existed in Bottelnek when the rock glaciers were active.
- Full Text: false
- Date Issued: 1993
The South African sugar industry
- Authors: Lewis, Colin A
- Date: 1990
- Language: English
- Type: Article
- Identifier: vital:6695 , http://hdl.handle.net/10962/d1006730
- Description: The sugar industry was established in Natal in the mid-nineteenth century. By the 1980s, South Africa produced c. 2 million metric tons of sugar per annum and, directly or indirectly, the industry supported almost one million people. Exports, which amounted for almost half the sugar produced in the 1970s, declined during the 1980s and low prices together with American and Canadian sanctions have forced the industry to consider alternative uses for sugar cane.
- Full Text: false
- Date Issued: 1990
- Authors: Lewis, Colin A
- Date: 1990
- Language: English
- Type: Article
- Identifier: vital:6695 , http://hdl.handle.net/10962/d1006730
- Description: The sugar industry was established in Natal in the mid-nineteenth century. By the 1980s, South Africa produced c. 2 million metric tons of sugar per annum and, directly or indirectly, the industry supported almost one million people. Exports, which amounted for almost half the sugar produced in the 1970s, declined during the 1980s and low prices together with American and Canadian sanctions have forced the industry to consider alternative uses for sugar cane.
- Full Text: false
- Date Issued: 1990
The Viking
- Authors: Lewis, Colin A
- Date: 1992
- Language: English
- Type: text
- Identifier: vital:6706 , http://hdl.handle.net/10962/d1006742
- Full Text:
- Date Issued: 1992
- Authors: Lewis, Colin A
- Date: 1992
- Language: English
- Type: text
- Identifier: vital:6706 , http://hdl.handle.net/10962/d1006742
- Full Text:
- Date Issued: 1992
Travelling stallions in and adjacent to Brycheiniog
- Authors: Lewis, Colin A
- Date: 1989
- Language: English
- Type: Article
- Identifier: vital:6696 , http://hdl.handle.net/10962/d1006732
- Description: [From the introduction]: Horses played a major role in the transport system in Britain until, in the years following the conclusion of the First World War, they were gradually ousted by motor vehicles. In 1917, when the first reasonably complete equine census of Britain was undertaken, there were 2,650,773 horses in the country, 1,115,920 of which were used for agricultural purposes (Chivers, 1976). Horse breeding was therefore of great importance and a variety of attempts was made to improve the quality of horses by subsidising stallions that travelled the countryside during the breeding season, and that were available, at a fee, for the service of mares. This paper describes some of the routes followed by stallions that formerly travelled in Brycheiniog and adjacent counties.
- Full Text: false
- Date Issued: 1989
- Authors: Lewis, Colin A
- Date: 1989
- Language: English
- Type: Article
- Identifier: vital:6696 , http://hdl.handle.net/10962/d1006732
- Description: [From the introduction]: Horses played a major role in the transport system in Britain until, in the years following the conclusion of the First World War, they were gradually ousted by motor vehicles. In 1917, when the first reasonably complete equine census of Britain was undertaken, there were 2,650,773 horses in the country, 1,115,920 of which were used for agricultural purposes (Chivers, 1976). Horse breeding was therefore of great importance and a variety of attempts was made to improve the quality of horses by subsidising stallions that travelled the countryside during the breeding season, and that were available, at a fee, for the service of mares. This paper describes some of the routes followed by stallions that formerly travelled in Brycheiniog and adjacent counties.
- Full Text: false
- Date Issued: 1989
Uncertainty and fear - but restoration completed
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6169 , http://hdl.handle.net/10962/d1012359
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 1994
- Authors: Lewis, Colin A
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6169 , http://hdl.handle.net/10962/d1012359
- Description: Colin Lewis was Professor of Geography at Rhodes University, Grahamstown, South Africa from 1989 until his retirement at the end of 2007. In 1990, with the strong support of the incumbent Vice-Chancellor, Dr Derek Henderson, he instigated the Certificate in Change Ringing (Church Bell Ringing) in the Rhodes University Department of Music and Musicology - the first such course to be offered in Africa. Since that date he has lectured in the basic theory, and taught the practice of change ringing. He is the Ringing Master of the Cathedral of St Michael and St George, Grahamstown, South Africa.
- Full Text:
- Date Issued: 1994
Walter Oakley West (1930-2007) : obituary
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6703 , http://hdl.handle.net/10962/d1006739
- Full Text:
- Date Issued: 2008
- Authors: Lewis, Colin A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6703 , http://hdl.handle.net/10962/d1006739
- Full Text:
- Date Issued: 2008