Lydie M Dupont
Biographic Data
| ID | 122172 |
|---|---|
| NAME | Lydie M Dupont |
| GIVEN NAMES | Lydie M |
| FAMILY NAME | Dupont |
| SIGNATURE | DUPONT L M |
| AFFILIATIONS | University of Bremen |
| ORCID | 0000-0001-9531-6793 |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 18 |
| AUTHOR COUNT | 18 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1992 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Vegetation and climate dynamics in a 16,600-year marine sequence offshore Mozambique in Delagoa Bight, south-eastern Africa
In memoriam Prof. em. Dr. Hans-Jürgen Beug, 18th January 1932 to 5th March 2022
of Gttingen with a thesis on the vegetation history of the
Ecosystem engineering in the Quaternary of the West Coast of South Africa
Despite advances in our understanding of the geographic and temporal scope of the Paleolithic record, we know remarkably little about the evolutionary and ecological consequences of changes in human behavior. Recent inquiries suggest that human evolution reflects a long history of interconnections between the behavior of humans and their surrounding ecosystems (e.g., niche construction). Developing expectations to identify such phenomena is remar…
Climate and land-use effects on hydrological and vegetation signals during the last three millennia
The southwest of Morocco is considered to be an area of refuge within the Mediterranean region, hosting the endemic tropical Argan tree. This region is presently subject to severe droughts, desertification and land degradation, and likely facing increased climate variability and socio-economic stress in the future. Here, we use the stable hydrogen and carbon isotope composition (δD and δ 13 C) of plant-waxes in a high-resolution marine sediment c…
Holocene hydrologic and vegetation developments in the Orange River catchment (South Africa) and their controls
The summer rainfall zone (SRZ) in the South African interior experienced pronounced hydrological and vegetation changes during the Holocene inferred to be driven mainly by shifts in atmospheric and oceanic circulations systems. The exact mechanisms controlling these changes are still debated. To gain better insights into the Holocene environmental changes in the South African SRZ and their driving factors, we analysed compound-specific carbon and…
Late-Holocene oceanic variability in the southern Benguela region driven by interplay of upwelling, fluvial discharge, and Agulhas leakage
The southern Benguela upwelling system near the St. Helena Bay has been proposed to be affected by various factors, while few investigations about the late-Holocene oceanic conditions has been carried out in this area. To determine the oceanic variability and its forcing mechanisms in the southern Benguela region during the late-Holocene, we examined organic-walled dinoflagellate cyst (dinocyst) records from two marine sediment cores located in t…
Pollen distribution in the marine surface sediments of the mudbelt along the west coast of South Africa
Holocene vegetation and climate variability in the winter and summer rainfall zones of South Africa
To better understand Holocene vegetation and hydrological changes in South Africa, we analyzed pollen and microcharcoal records of two marine sites GeoB8331 and GeoB8323 from the Namaqualand mudbelt offshore the west coast of South Africa covering the last 9900 and 2200 years, respectively. Our data corroborate findings from literature that climate developments apparently contrast between the summer rainfall zone (SRZ) and winter rainfall zone (W…
Palynological evidence for climatic and oceanic variability off NW Africa during the late Holocene
Pollen and organic-walled dinoflagellate cyst assemblages from core GeoB 9503-5 retrieved from the mud-belt (∼ 50 m water depth) off the Senegal River mouth have been analyzed to reconstruct short-term palaeoceanographic and palaeoenvironmental changes in subtropical NW Africa during the time interval from ca. 4200 to 1200 cal yr BP. Our study emphasizes significant coeval changes in continental and oceanic environments in and off Senegal and sho…
Neotropical vegetation response to rapid climate changes during the last glacial period
We present new palynological information from the anoxic Cariaco Basin, off Venezuela, that provides insight into the response of northernmost South American vegetation to rapid climate changes between 68 and 28 ka, specifically during North Atlantic Heinrich events (HEs) and Dansgaard/Oeschger cycles. We defined three different vegetation modes: (1) an interstadial mode characterized by the highest pollen concentration and the maximum extension …
A thankful tribute to Hans-Jürgen Beug on the occasion of his 75th birthday
Variability in glacial and Holocene marine pollen records offshore from west southern Africa
Southwest African climate independent of Atlantic sea surface temperatures during the Younger Dryas
To investigate land–sea interactions during deglaciation, we compared proxies for continental (pollen percentages and accumulation rates) and marine conditions (dinoflagellate cyst percentages and alkenone-derived sea surface temperatures). The proxies were from published data from an AMS-radiocarbon-dated sedimentary record of core GeoB 1023-5 encompassing the past 21,000 years. The site is located at ca. 2000 m water depth just north of the Wal…
Correlation between Vegetation in Southwestern Africa and Oceanic Upwelling in the Past 21,000 Years
Dinoflagellate cyst and pollen records from marine sediments off the southwestern African coast reveal three major aridification periods since the last glaciation and an environmental correlation between land and sea. Abundant pollen of desert, semi-desert, and temperate plants 21,000–17,500 cal yr B.P. show arid and cold conditions in southwestern Africa that correspond to low sea surface temperatures and enhanced upwelling shown by dinoflagella…
Vegetation and climate changes during the last 21 000 years in S.W. Africa based on a marine pollen record
Vegetation and climatic history of southwest Africa
Vegetation history of the savanna corridor between the Guinean and the Congolian rain forest during the last 150,000 years
Latitudinal shifts of forest and savanna in N. W. Africa during the Brunhes chron
Vegetation history of the savanna corridor between the Guinean and the Congolian rain forest during the last 150,000 years
Holocene vegetation and climate variability in the winter and summer rainfall zones of South Africa
To better understand Holocene vegetation and hydrological changes in South Africa, we analyzed pollen and microcharcoal records of two marine sites GeoB8331 and GeoB8323 from the Namaqualand mudbelt offshore the west coast of South Africa covering the last 9900 and 2200 years, respectively. Our data corroborate findings from literature that climate developments apparently contrast between the summer rainfall zone (SRZ) and winter rainfall zone (W…
Variability in glacial and Holocene marine pollen records offshore from west southern Africa
Latitudinal shifts of forest and savanna in N. W. Africa during the Brunhes chron
Vegetation and climate changes during the last 21 000 years in S.W. Africa based on a marine pollen record
Vegetation and climatic history of southwest Africa
Latitudinal shifts of forest and savanna in N. W. Africa during the Brunhes chron
Vegetation history of the savanna corridor between the Guinean and the Congolian rain forest during the last 150,000 years
Vegetation and climatic history of southwest Africa
Vegetation and climate changes during the last 21 000 years in S.W. Africa based on a marine pollen record
Correlation between Vegetation in Southwestern Africa and Oceanic Upwelling in the Past 21,000 Years
Dinoflagellate cyst and pollen records from marine sediments off the southwestern African coast reveal three major aridification periods since the last glaciation and an environmental correlation between land and sea. Abundant pollen of desert, semi-desert, and temperate plants 21,000–17,500 cal yr B.P. show arid and cold conditions in southwestern Africa that correspond to low sea surface temperatures and enhanced upwelling shown by dinoflagella…
Southwest African climate independent of Atlantic sea surface temperatures during the Younger Dryas
To investigate land–sea interactions during deglaciation, we compared proxies for continental (pollen percentages and accumulation rates) and marine conditions (dinoflagellate cyst percentages and alkenone-derived sea surface temperatures). The proxies were from published data from an AMS-radiocarbon-dated sedimentary record of core GeoB 1023-5 encompassing the past 21,000 years. The site is located at ca. 2000 m water depth just north of the Wal…
A thankful tribute to Hans-Jürgen Beug on the occasion of his 75th birthday
Variability in glacial and Holocene marine pollen records offshore from west southern Africa
Neotropical vegetation response to rapid climate changes during the last glacial period
We present new palynological information from the anoxic Cariaco Basin, off Venezuela, that provides insight into the response of northernmost South American vegetation to rapid climate changes between 68 and 28 ka, specifically during North Atlantic Heinrich events (HEs) and Dansgaard/Oeschger cycles. We defined three different vegetation modes: (1) an interstadial mode characterized by the highest pollen concentration and the maximum extension …
Palynological evidence for climatic and oceanic variability off NW Africa during the late Holocene
Pollen and organic-walled dinoflagellate cyst assemblages from core GeoB 9503-5 retrieved from the mud-belt (∼ 50 m water depth) off the Senegal River mouth have been analyzed to reconstruct short-term palaeoceanographic and palaeoenvironmental changes in subtropical NW Africa during the time interval from ca. 4200 to 1200 cal yr BP. Our study emphasizes significant coeval changes in continental and oceanic environments in and off Senegal and sho…
Pollen distribution in the marine surface sediments of the mudbelt along the west coast of South Africa
Holocene vegetation and climate variability in the winter and summer rainfall zones of South Africa
To better understand Holocene vegetation and hydrological changes in South Africa, we analyzed pollen and microcharcoal records of two marine sites GeoB8331 and GeoB8323 from the Namaqualand mudbelt offshore the west coast of South Africa covering the last 9900 and 2200 years, respectively. Our data corroborate findings from literature that climate developments apparently contrast between the summer rainfall zone (SRZ) and winter rainfall zone (W…
Holocene hydrologic and vegetation developments in the Orange River catchment (South Africa) and their controls
The summer rainfall zone (SRZ) in the South African interior experienced pronounced hydrological and vegetation changes during the Holocene inferred to be driven mainly by shifts in atmospheric and oceanic circulations systems. The exact mechanisms controlling these changes are still debated. To gain better insights into the Holocene environmental changes in the South African SRZ and their driving factors, we analysed compound-specific carbon and…
Late-Holocene oceanic variability in the southern Benguela region driven by interplay of upwelling, fluvial discharge, and Agulhas leakage
The southern Benguela upwelling system near the St. Helena Bay has been proposed to be affected by various factors, while few investigations about the late-Holocene oceanic conditions has been carried out in this area. To determine the oceanic variability and its forcing mechanisms in the southern Benguela region during the late-Holocene, we examined organic-walled dinoflagellate cyst (dinocyst) records from two marine sediment cores located in t…
Ecosystem engineering in the Quaternary of the West Coast of South Africa
Despite advances in our understanding of the geographic and temporal scope of the Paleolithic record, we know remarkably little about the evolutionary and ecological consequences of changes in human behavior. Recent inquiries suggest that human evolution reflects a long history of interconnections between the behavior of humans and their surrounding ecosystems (e.g., niche construction). Developing expectations to identify such phenomena is remar…
Climate and land-use effects on hydrological and vegetation signals during the last three millennia
The southwest of Morocco is considered to be an area of refuge within the Mediterranean region, hosting the endemic tropical Argan tree. This region is presently subject to severe droughts, desertification and land degradation, and likely facing increased climate variability and socio-economic stress in the future. Here, we use the stable hydrogen and carbon isotope composition (δD and δ 13 C) of plant-waxes in a high-resolution marine sediment c…
In memoriam Prof. em. Dr. Hans-Jürgen Beug, 18th January 1932 to 5th March 2022
of Gttingen with a thesis on the vegetation history of the
Vegetation and climate dynamics in a 16,600-year marine sequence offshore Mozambique in Delagoa Bight, south-eastern Africa
Geology and Paleoclimatology Research (16 works) · Geography (13 works) · Geology (13 works) · Physical geography (12 works) · Oceanography (11 works) · Geological formations and processes (10 works) · Climate change (9 works) · Ecology (9 works) · Holocene (9 works) · Vegetation (pathology (9 works)