Henry Hooghiemstra
Dados Biográficos
| ID | 1244057 |
|---|---|
| NOME | Henry Hooghiemstra |
| PRENOMES | Henry |
| SOBRENOME | Hooghiemstra |
| ASSINATURA | HOOGHIEMSTRA H |
| AFILIAÇÕES | University of Amsterdam |
| ORCID | 0000-0003-2502-1644 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 28 |
| TOTAL DE CITAÇÕES | 83 |
| TOTAL COMO AUTOR | 28 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1994 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2021 |
| ÍNDICE H | 6 |
Inside-of-Africa
Homo sapiens as a clade originated c. 500 thousand years before present (500 ka) as it diverged from Homo neanderthalensis. The topic of early H. sapiens evolution and dispersal since this cladogenesis has long been of interest in scientific literature and public debate. The development of this field has been significantly accelerated in recent years by the advances made in the scientific fields of archaeological, anthropological and genetic rese…
Mangrove Archives
The site of Anse Trabaud on Martinique in the Windward Islands of the Lesser Antilles has yielded valuable information about human occupation from deep beneath its surface. The site is located in the southeastern part of the island, an area vulnerable to extreme wave events. The archaeological deposits are dated to 1290–780 cal BP (2σ). The earliest horizon is buried under thick layers of mangrove sediments. The deeply buried deposits have allowe…
Novel responses of diatoms in neotropical mountain lakes to indigenous and post-European occupation
Climate-human-landscape interaction in the eastern foothills of Mt. Kilimanjaro (equatorial East Africa) during the last two millennia
The Mt. Kilimanjaro region is known for its long history of intensive agriculture, but the temporal extent of human activity and its impact on the regional ecosystem are not well known. In this study, climate-human-landscape interactions during the past ~2200 years were examined using climate and vegetation proxies extracted from the continuous and high-resolution sediment record of Lake Chala. Ancient-to-modern regional human activity is documen…
Columbus’ environmental impact in the New World
Columbus' arrival in the New World in AD 1492 on the northern coast of Hispaniola was followed by a suite of changes in land-use. We reconstruct environmental change from a 225-cm-long sediment core from site Los Indios from an abandoned and sediment-filled meander of the Yaque River, Cibao Valley, northeastern Dominican Republic. The sediment record starts ca. AD 195 (ca. 1755 cal. yr BP) and the history of the meander infill was monitored by ch…
Columbus' footprint in Hispaniola
A deadly cocktail
Analyses of pollen, diatoms, XRF geochemistry, and pigments provide a unique window into how an insular ecosystem in Mauritius responded to an extreme drought event 4200 years ago. We provide a reconstruction of regional vegetation change and local wetland development under influence of sea level rise and inferred climate change between 4400 and 4100 cal. yr BP. Our multi-proxy data evidence a severe drought between 4190 and 4130 cal. yr BP, whic…
North Andean forest dynamics mimics Greenland ice cores
Major altitudinal shifts in Andean vegetation on the Amazonian flank show temporary loss of biota in the Holocene
The Lateglacial and Holocene vegetation history from the Amazonian flank of the south Colombian Andes has been studied in a 12 m long sediment core from Lake La Cocha (2780 m altitude). 18 AMS 14 C ages and 550 pollen samples yielded a history of a ~25 yr resolution. Montane forest extended up to 2200 m during the Lateglacial and shifted during a 10,000 yr period with millennial-scale and centennial-scale variability superimposed, to its present-…
Mid-Holocene (4200 kyr BP) mass mortalities in Mauritius (Mascarenes)
In the light of the currently increasing drought frequency and water scarcity on oceanic islands, it is crucial for the conservation of threatened insular vertebrates to assess how they will be affected. A 4000 yr old fossil assemblage in the Mare Aux Songes (MAS), southwest Mauritius, Mascarene Islands, contains bones of 100 000+ individual vertebrates, dominated by two species of giant tortoises Cylindraspis triserrata and C. inepta, the dodo R…
Late Quaternary vegetation reconstruction from the Eastern Arc Mountains, Tanzania
Pollen, spore, macrofossil and stable isotope (C and N) analyses from a 266-cm sediment core collected from a swamp on the Eastern Arc Mountains, Tanzania, are used to reconstruct vegetation and environmental history. An estimated time scale based on five 14 C ages records approximately 38,000 yr. This palaeorecord is the first from this biodiversity hotspot and importantly extends through the last glacial maximum (LGM). The altitudinal transitio…
Holocene environmental change at the upper forest line in northern Ecuador
We have reconstructed the altitudinal position of the upper forest line (UFL) during the last 6000 years. This boundary between montane forest and páramo (tropical alpine grasslands) has important ecological and societal relevance. It is suggested that human-induced fires and deforestation during the long occupation history of the Central Valley of Ecuador have caused a downslope shift of the UFL and have given way to a downslope expansion of pár…
The last 1.35 million years at Tenaghi Philippon
Late Quaternary palynology in marine sediments
Environmental history of the dry forest biome of Guerrero, Mexico, and human impact during the last c. 2700 years
Two lake sediment cores from Madre del Sur mountain range,Guerrero State, west-central Mexico were studied to examine the pastdynamics of the dry forest biome. Pollen, spores of coprophilousfungi, cyanobacteria and lithological changes are presented. The390-cm Tixtla core (1730'N, 99°24W, 1400 maltitude) represents the last 2700 cal. yr; the 340-cm Huitziltepeccore (17°45N, 99°28W, 1430 m altitude) representsthe last 2050 cal. yr. Pollen shows cl…
Radiocarbon Dating of Soil Organic Matter Fractions in Andosols in Northern Ecuador
Volcanic ash soils (Andosols) may offer great opportunities for paleoecological studies, as suggested by their characteristic accumulation of organic matter (OM). However, understanding of the chronostratigraphy of soil organic matter (SOM) is required. Therefore, radiocarbon dating of SOM is necessary, but unfortunately not straightforward. Dating of fractions of SOM obtained by alkali-acid extraction is promising, but which fraction (humic acid…
Vegetation disturbance and human population in Colombia - a regional reconstruction
Palaeoecologists using pollen to map vegetation since the last ice age have noted numerous changes - which they feel increasingly obliged to blame on humans. These changes, such as deforestation or the dominance of certain plants, may happen suddenly or take place over thousands of years. The authors study the pollen record in Colombia, identify plants diagnostic of cultivation or disturbed ground ("degraded vegetation") and use them to map human…
Biogeochemical Characteristics of Lacustrine Sediments Reflecting a Changing Alpine Neotropical Ecosystem during the Pleistocene
Continuous lacustrine deposits of the Funza-II core from the Bogotá basin, Colombia (5°N74°W) record late Pleistocene climatic variations, providing an opportunity to assess the influence of glacial–interglacial climate changes on alpine ecosystems in equatorial South America. Biogeochemical response of this tropical alpine system to climate change was inferred from changes in elemental concentrations and ratios and isotopic signatures in the upp…
Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique
Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique
A 7000-year pollen record of a 90 cm core from Chenevo (4°05'N, 70°21'W, 150 m alttitude) and a 3500-year pollen record of a 285 cm core from Mozambique (3°58 N, 73°03 W, 175 m altitude) both from the savannas of the Llanos Orientales, Colombia, are presented. The records show dynamics between open savanna (Poaceae, Cyperaceae), woody savanna (Byrsonima, Curatella, Didymopanax), palm swamp (Mauritia, Mauritiella), forest and gallery forest taxa. …
Multi-disciplinary evidence of the Holocene history of a cultivated floodplain area in the wetlands of northern Colombia
Environmental change in the Colombian subandean forest belt from 8 pollen records
Tropical rain-forest history from the Colombian Pacific area
Pollen analysis of a 5 m long core from Lake Jotaordó, located in northern ‘Chocó biogeographic area’ (5°48[.minute] N, 76°42[.minute] W) along the Pacific coast of Colombia, shows the environmental history of the rain forest during the last 4200 years. Time control has been based on 6 AMS 14 C dates ranging from 4230 to 365 14 C yr BP. The period of 4230 to 4053 14C yr BP shows sandy deposits and river influence and represents at that time the i…
Holocene History of the Chocó Rain Forest from Laguna Piusbi, Southern Pacific Lowlands of Colombia
A high-resolution pollen record from a 5-m-long sediment core from the closed-lake basin Laguna Piusbi in the southern Colombian Pacific lowlands of Chocó, dated by 11 AMS 14 C dates that range from ca. 7670 to 220 14 C yr B.P., represents the first Holocene record from the Chocó rain forest area. The interval between 7600 and 6100 14 C yr B.P. (500–265 cm), composed of sandy clays that accumulated during the initial phase of lake formation, is a…
Chronostratigraphy and correlation of the Pliocene and Quaternary of Colombia
A Holocene vegetation history from lowland Guatemala
A 5.45-m core from Lake Peten-Itza, lowland Guatemala, contains a near-complete record of Holo cene sedimentation. The age-depth relationship for the core is based on AMS 14 C dating of terrestrial wood fragments and provides a reliable chronology in this karst region where hard-water lake error has typically confounded sediment geochronology. In the basal part of the sequence, pollen of the Moraceae-Urticaceae group dominate, indicating the pres…
Columbus' footprint in Hispaniola
Columbus’ environmental impact in the New World
Columbus' arrival in the New World in AD 1492 on the northern coast of Hispaniola was followed by a suite of changes in land-use. We reconstruct environmental change from a 225-cm-long sediment core from site Los Indios from an abandoned and sediment-filled meander of the Yaque River, Cibao Valley, northeastern Dominican Republic. The sediment record starts ca. AD 195 (ca. 1755 cal. yr BP) and the history of the meander infill was monitored by ch…
Major altitudinal shifts in Andean vegetation on the Amazonian flank show temporary loss of biota in the Holocene
The Lateglacial and Holocene vegetation history from the Amazonian flank of the south Colombian Andes has been studied in a 12 m long sediment core from Lake La Cocha (2780 m altitude). 18 AMS 14 C ages and 550 pollen samples yielded a history of a ~25 yr resolution. Montane forest extended up to 2200 m during the Lateglacial and shifted during a 10,000 yr period with millennial-scale and centennial-scale variability superimposed, to its present-…
Multi-disciplinary evidence of the Holocene history of a cultivated floodplain area in the wetlands of northern Colombia
Environmental change in the Colombian subandean forest belt from 8 pollen records
Radiocarbon Dating of Soil Organic Matter Fractions in Andosols in Northern Ecuador
Volcanic ash soils (Andosols) may offer great opportunities for paleoecological studies, as suggested by their characteristic accumulation of organic matter (OM). However, understanding of the chronostratigraphy of soil organic matter (SOM) is required. Therefore, radiocarbon dating of SOM is necessary, but unfortunately not straightforward. Dating of fractions of SOM obtained by alkali-acid extraction is promising, but which fraction (humic acid…
Tropical rain-forest history from the Colombian Pacific area
Pollen analysis of a 5 m long core from Lake Jotaordó, located in northern ‘Chocó biogeographic area’ (5°48[.minute] N, 76°42[.minute] W) along the Pacific coast of Colombia, shows the environmental history of the rain forest during the last 4200 years. Time control has been based on 6 AMS 14 C dates ranging from 4230 to 365 14 C yr BP. The period of 4230 to 4053 14C yr BP shows sandy deposits and river influence and represents at that time the i…
Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique
A 7000-year pollen record of a 90 cm core from Chenevo (4°05'N, 70°21'W, 150 m alttitude) and a 3500-year pollen record of a 285 cm core from Mozambique (3°58 N, 73°03 W, 175 m altitude) both from the savannas of the Llanos Orientales, Colombia, are presented. The records show dynamics between open savanna (Poaceae, Cyperaceae), woody savanna (Byrsonima, Curatella, Didymopanax), palm swamp (Mauritia, Mauritiella), forest and gallery forest taxa. …
Novel responses of diatoms in neotropical mountain lakes to indigenous and post-European occupation
A deadly cocktail
Analyses of pollen, diatoms, XRF geochemistry, and pigments provide a unique window into how an insular ecosystem in Mauritius responded to an extreme drought event 4200 years ago. We provide a reconstruction of regional vegetation change and local wetland development under influence of sea level rise and inferred climate change between 4400 and 4100 cal. yr BP. Our multi-proxy data evidence a severe drought between 4190 and 4130 cal. yr BP, whic…
Mid-Holocene (4200 kyr BP) mass mortalities in Mauritius (Mascarenes)
In the light of the currently increasing drought frequency and water scarcity on oceanic islands, it is crucial for the conservation of threatened insular vertebrates to assess how they will be affected. A 4000 yr old fossil assemblage in the Mare Aux Songes (MAS), southwest Mauritius, Mascarene Islands, contains bones of 100 000+ individual vertebrates, dominated by two species of giant tortoises Cylindraspis triserrata and C. inepta, the dodo R…
Holocene environmental change at the upper forest line in northern Ecuador
We have reconstructed the altitudinal position of the upper forest line (UFL) during the last 6000 years. This boundary between montane forest and páramo (tropical alpine grasslands) has important ecological and societal relevance. It is suggested that human-induced fires and deforestation during the long occupation history of the Central Valley of Ecuador have caused a downslope shift of the UFL and have given way to a downslope expansion of pár…
Environmental history of the dry forest biome of Guerrero, Mexico, and human impact during the last c. 2700 years
Two lake sediment cores from Madre del Sur mountain range,Guerrero State, west-central Mexico were studied to examine the pastdynamics of the dry forest biome. Pollen, spores of coprophilousfungi, cyanobacteria and lithological changes are presented. The390-cm Tixtla core (1730'N, 99°24W, 1400 maltitude) represents the last 2700 cal. yr; the 340-cm Huitziltepeccore (17°45N, 99°28W, 1430 m altitude) representsthe last 2050 cal. yr. Pollen shows cl…
Holocene mire development and climatic change from a high Andean Plantago rigida cushion mire
A pollen diagram of a 225 cm long core from a small Plantago rigida cushion mire (Turbera de Calostros) in the grassparamo belt at 3730m altitude in the Paramo de Chingaza, Eastern Cordillera of Colombia, records the last 8500 years of Holocene vegetational history. Three radiocarbon dates (8410 ± 160 BP, 7230 ± 1340 BP and 5980 ± 75 BP) provide a time frame. Pollen of taxa of zonal grassparamo and subparamo vegetation are dominant and pollen of …
Late Pliocene-Pleistocene high resolution pollen sequence of Colombia
Holocene mire development and climatic change from a high Andean Plantago rigida cushion mire
A pollen diagram of a 225 cm long core from a small Plantago rigida cushion mire (Turbera de Calostros) in the grassparamo belt at 3730m altitude in the Paramo de Chingaza, Eastern Cordillera of Colombia, records the last 8500 years of Holocene vegetational history. Three radiocarbon dates (8410 ± 160 BP, 7230 ± 1340 BP and 5980 ± 75 BP) provide a time frame. Pollen of taxa of zonal grassparamo and subparamo vegetation are dominant and pollen of …
A Holocene vegetation history from lowland Guatemala
A 5.45-m core from Lake Peten-Itza, lowland Guatemala, contains a near-complete record of Holo cene sedimentation. The age-depth relationship for the core is based on AMS 14 C dating of terrestrial wood fragments and provides a reliable chronology in this karst region where hard-water lake error has typically confounded sediment geochronology. In the basal part of the sequence, pollen of the Moraceae-Urticaceae group dominate, indicating the pres…
Chronostratigraphy and correlation of the Pliocene and Quaternary of Colombia
Holocene History of the Chocó Rain Forest from Laguna Piusbi, Southern Pacific Lowlands of Colombia
A high-resolution pollen record from a 5-m-long sediment core from the closed-lake basin Laguna Piusbi in the southern Colombian Pacific lowlands of Chocó, dated by 11 AMS 14 C dates that range from ca. 7670 to 220 14 C yr B.P., represents the first Holocene record from the Chocó rain forest area. The interval between 7600 and 6100 14 C yr B.P. (500–265 cm), composed of sandy clays that accumulated during the initial phase of lake formation, is a…
Tropical rain-forest history from the Colombian Pacific area
Pollen analysis of a 5 m long core from Lake Jotaordó, located in northern ‘Chocó biogeographic area’ (5°48[.minute] N, 76°42[.minute] W) along the Pacific coast of Colombia, shows the environmental history of the rain forest during the last 4200 years. Time control has been based on 6 AMS 14 C dates ranging from 4230 to 365 14 C yr BP. The period of 4230 to 4053 14C yr BP shows sandy deposits and river influence and represents at that time the i…
Multi-disciplinary evidence of the Holocene history of a cultivated floodplain area in the wetlands of northern Colombia
Environmental change in the Colombian subandean forest belt from 8 pollen records
Biogeochemical Characteristics of Lacustrine Sediments Reflecting a Changing Alpine Neotropical Ecosystem during the Pleistocene
Continuous lacustrine deposits of the Funza-II core from the Bogotá basin, Colombia (5°N74°W) record late Pleistocene climatic variations, providing an opportunity to assess the influence of glacial–interglacial climate changes on alpine ecosystems in equatorial South America. Biogeochemical response of this tropical alpine system to climate change was inferred from changes in elemental concentrations and ratios and isotopic signatures in the upp…
Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique
Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique
A 7000-year pollen record of a 90 cm core from Chenevo (4°05'N, 70°21'W, 150 m alttitude) and a 3500-year pollen record of a 285 cm core from Mozambique (3°58 N, 73°03 W, 175 m altitude) both from the savannas of the Llanos Orientales, Colombia, are presented. The records show dynamics between open savanna (Poaceae, Cyperaceae), woody savanna (Byrsonima, Curatella, Didymopanax), palm swamp (Mauritia, Mauritiella), forest and gallery forest taxa. …
Vegetation disturbance and human population in Colombia - a regional reconstruction
Palaeoecologists using pollen to map vegetation since the last ice age have noted numerous changes - which they feel increasingly obliged to blame on humans. These changes, such as deforestation or the dominance of certain plants, may happen suddenly or take place over thousands of years. The authors study the pollen record in Colombia, identify plants diagnostic of cultivation or disturbed ground ("degraded vegetation") and use them to map human…
The last 1.35 million years at Tenaghi Philippon
Late Quaternary palynology in marine sediments
Environmental history of the dry forest biome of Guerrero, Mexico, and human impact during the last c. 2700 years
Two lake sediment cores from Madre del Sur mountain range,Guerrero State, west-central Mexico were studied to examine the pastdynamics of the dry forest biome. Pollen, spores of coprophilousfungi, cyanobacteria and lithological changes are presented. The390-cm Tixtla core (1730'N, 99°24W, 1400 maltitude) represents the last 2700 cal. yr; the 340-cm Huitziltepeccore (17°45N, 99°28W, 1430 m altitude) representsthe last 2050 cal. yr. Pollen shows cl…
Radiocarbon Dating of Soil Organic Matter Fractions in Andosols in Northern Ecuador
Volcanic ash soils (Andosols) may offer great opportunities for paleoecological studies, as suggested by their characteristic accumulation of organic matter (OM). However, understanding of the chronostratigraphy of soil organic matter (SOM) is required. Therefore, radiocarbon dating of SOM is necessary, but unfortunately not straightforward. Dating of fractions of SOM obtained by alkali-acid extraction is promising, but which fraction (humic acid…
Late Quaternary vegetation reconstruction from the Eastern Arc Mountains, Tanzania
Pollen, spore, macrofossil and stable isotope (C and N) analyses from a 266-cm sediment core collected from a swamp on the Eastern Arc Mountains, Tanzania, are used to reconstruct vegetation and environmental history. An estimated time scale based on five 14 C ages records approximately 38,000 yr. This palaeorecord is the first from this biodiversity hotspot and importantly extends through the last glacial maximum (LGM). The altitudinal transitio…
Holocene environmental change at the upper forest line in northern Ecuador
We have reconstructed the altitudinal position of the upper forest line (UFL) during the last 6000 years. This boundary between montane forest and páramo (tropical alpine grasslands) has important ecological and societal relevance. It is suggested that human-induced fires and deforestation during the long occupation history of the Central Valley of Ecuador have caused a downslope shift of the UFL and have given way to a downslope expansion of pár…
Mid-Holocene (4200 kyr BP) mass mortalities in Mauritius (Mascarenes)
In the light of the currently increasing drought frequency and water scarcity on oceanic islands, it is crucial for the conservation of threatened insular vertebrates to assess how they will be affected. A 4000 yr old fossil assemblage in the Mare Aux Songes (MAS), southwest Mauritius, Mascarene Islands, contains bones of 100 000+ individual vertebrates, dominated by two species of giant tortoises Cylindraspis triserrata and C. inepta, the dodo R…
North Andean forest dynamics mimics Greenland ice cores
Major altitudinal shifts in Andean vegetation on the Amazonian flank show temporary loss of biota in the Holocene
The Lateglacial and Holocene vegetation history from the Amazonian flank of the south Colombian Andes has been studied in a 12 m long sediment core from Lake La Cocha (2780 m altitude). 18 AMS 14 C ages and 550 pollen samples yielded a history of a ~25 yr resolution. Montane forest extended up to 2200 m during the Lateglacial and shifted during a 10,000 yr period with millennial-scale and centennial-scale variability superimposed, to its present-…
A deadly cocktail
Analyses of pollen, diatoms, XRF geochemistry, and pigments provide a unique window into how an insular ecosystem in Mauritius responded to an extreme drought event 4200 years ago. We provide a reconstruction of regional vegetation change and local wetland development under influence of sea level rise and inferred climate change between 4400 and 4100 cal. yr BP. Our multi-proxy data evidence a severe drought between 4190 and 4130 cal. yr BP, whic…
Columbus’ environmental impact in the New World
Columbus' arrival in the New World in AD 1492 on the northern coast of Hispaniola was followed by a suite of changes in land-use. We reconstruct environmental change from a 225-cm-long sediment core from site Los Indios from an abandoned and sediment-filled meander of the Yaque River, Cibao Valley, northeastern Dominican Republic. The sediment record starts ca. AD 195 (ca. 1755 cal. yr BP) and the history of the meander infill was monitored by ch…
Columbus' footprint in Hispaniola
Climate-human-landscape interaction in the eastern foothills of Mt. Kilimanjaro (equatorial East Africa) during the last two millennia
The Mt. Kilimanjaro region is known for its long history of intensive agriculture, but the temporal extent of human activity and its impact on the regional ecosystem are not well known. In this study, climate-human-landscape interactions during the past ~2200 years were examined using climate and vegetation proxies extracted from the continuous and high-resolution sediment record of Lake Chala. Ancient-to-modern regional human activity is documen…
Geography (24 obras) · Geology and Paleoclimatology Research (20 obras) · Geology (19 obras) · Ecology (18 obras) · Physical geography (15 obras) · Biology (13 obras) · Holocene (11 obras) · Oceanography (11 obras) · Paleontology (11 obras) · Geological and Tectonic Studies in Latin America (10 obras)