Feldpausch Research Group

In category: Amazonia


The Amazon’s hottest days are warming more than twice as fast as its average, in new areas of concern

A new study in Communications Earth & Environment, co-authored at Exeter, shows that Amazonia’s climate extremes are changing far faster than its averages, and that the fastest-changing region is the central-north Amazon, far from the arc of deforestation.


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Burned Amazonian forests stay altered for at least 40 years, new lidar study shows

New spaceborne-lidar work presented at ATBC 2026 shows Amazonian forests in Acre remain measurably shorter, simpler and lower in biomass for at least 40 years after wildfire, recovering to only about 90% of unburned forest.


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MSc completed: Lorena de Souza Fleury traces a 25-year legacy of soil fertilisation in Amazonian secondary forests

Lorena de Souza Fleury’s MSc at INPA finds that forest age, not fertiliser, drove carbon recovery in Amazonian secondary forests after 25 years, with soil holding most of the carbon.


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Amazon Soil Carbon: The Missing Credit

Amazon Soil Carbon: Policy Brief Summary The conversion of forest to agriculture in the Amazon triggers a “deforestation multiplier”: the ecosystem loses carbon equivalent to about 1.2 times the original forest’s aboveground biomass. Current carbon-credit standards such as Verra’s Verified Carbon Standard (VCS) focus on standing timber, yet new evidence highlights the significant, unprotected carbon […]


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‘Unprecedented’ wildfires in tropical peatlands during 20th century

A new study reveals an unprecedented increase in wildfires in tropical peatlands during the 20th century.   Peatlands store vast quantities of carbon below the Earth’s surface – more than all the world’s forest biomass combined – but when they catch fire large amounts of the stored carbon is released into the atmosphere.   Wildfires in tropical regions have been on the rise in recent decades, but the history and characteristics of wildfires in tropical peatlands remain largely unknown.   […]


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What controls forest carbon on the sandy soils of the southern Amazon?

Amazonian rainforests play an important global role in maintaining biodiversity, regulating climate, generating rainfall, and storing carbon. Yet, despite their importance, these forests continue to face multiple forms of degradation.


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Adding fire-derived carbon to the JULES land-surface model for the Amazon

By Oscar Kennedy-Blundell | Postdoctoral Research Associate I am currently working as a postdoctoral research associate focusing on black carbon, or pyrogenic carbon (PyC), in the Amazon Basin. My primary focus is modelling the occurrence of PyC using the RothC model and the JULES land surface model.


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Soil carbon loss twice as severe with conversion to agriculture than with repeated wildfire in Amazonian forests

A new study shows the significant impact of recurring fires and agricultural conversion on soil carbon storage in the Amazon rainforest. The research, a collaboration between the University of Exeter (UoE) and Center for Nuclear Energy in Agriculture (CENA) at the University of São Paulo (USP), demonstrates substantial carbon loss and degradation of soil properties […]


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Does fire in forests regrowing on old pastures reduce soil carbon? Fieldwork in central Amazonia

The Amazon rainforest, an important carbon sink, faces increasing threats from deforestation and wildfires. But what happens to the soil carbon after these disturbances? MSc student, Lorena Fleury, in the Tropical Forest Science Postgraduate Programme at the National Institute for Research in Amazonia (INPA), supervised by Prof. Ted Feldpausch, has been sampling soil in secondary […]


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Tropical forests in the Americas are changing too slowly to track climate change

Our new study published in the journal Science reveals a concerning trend, that tropical forests across the Americas are changing their composition and function too slowly to keep up with the pace of climate change. This mismatch puts these important ecosystems, biodiversity hotspots, and carbon sinks at significant risk.


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Fire reduces tree diversity and carbon in seasonal forests of the southern Amazon

We recently published a paper led by PhD student Maurivan Barros Pereira (State University of Mato Grosso (UNEMAT)), supervised by Prof. Ted Feldpausch and co-supervised by Drs Ben Hur Marimon and Fernando Elias da Silva. The findings were published in the journal Forest Ecology and Management, “Post-fire changes in tree diversity, composition and carbon in […]


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Postdoctoral Opportunity to Quantifying Soil Organic Carbon Responses to Landscape-Scale Fire in the Amazon

This opportunity has closed. For current PhD and postdoctoral opportunities in the Feldpausch group, see Opportunities. FAPESP Opportunity Postdoctoral Opportunity to Quantifying Soil Organic Carbon Responses to Landscape-Scale Fire in the Amazon This research aims to map and quantify the environmental factors, especially “fire”, that drive the spatial variation of soil organic carbon (SOC) and […]


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Extreme El Niño weather saw South America’s forest carbon sink switch off

Tropical forests in South America lose their ability to absorb carbon from the atmosphere when conditions become exceptionally hot and dry, according to new research. For a long time, tropical forests have acted as a carbon sink, taking more carbon out of the air than they release into it, a process that has moderated the impact […]


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People and the Amazon: new display by the Univ of Exeter and Eden Project

Prof Ted Feldpausch and Prof Jose Iriarte developed a new display with the Eden Project to communicate to the public research findings about historical land-use and fire use by pre-Columbian people.


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Research talk at the Eden Project: The history of people and fire in the Amazon rainforest

 Expert talk – ‘The history of people and fire in the Amazon rainforest’   Where: The Core Film Room (1st floor), The Eden Project, Cornwall, UK When: 2pm, 11-Sept-2023 People have been living in the Amazon rainforest for 13,000 years. Their use of fire and plants has had long-term impacts on forest structure, composition, and soils. Join Professor Ted Feldpausch and Professor José […]


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Can microscopic plant remains in soil reveal pre-Columbian land use in the Amazon?

Phytolith analysis is a well-established archaeobotanical tool, having provided important insights into pre-Columbian crop cultivation and domestication across Amazonia through the Holocene. Yet, its use as a palaeoecological tool is in its infancy in Amazonia and its effectiveness for reconstructing pre-Columbian land-use beyond archaeological sites (i.e., ‘off-site’) has so far received little critical attention. In […]


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Drought will reduce the rainforest’s ability to remove carbon from the environment

In a major collaboration involving 80 scientists from Europe and South America, our research identified the regions of the Amazon rainforest where trees are most likely to face the greatest risk from drier conditions brought about by climate change. Based on the analysis, our research predicts trees in the western and southern Amazon face the […]


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Fire training reaches 300 high-school students in Cruzeiro do Sul, Acre

As part of the NERC-funded Amazon Past Fire project, we coordinated a training session with university students in the secondary education teaching programme at the Federal Universidade de Acre, Brazil, about fire impacts, management, and sustainable forest use in Brazil.


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Post-doc opportunity: Interaction between geospatial monitoring of environmental data and soil carbon.

This opportunity has closed. For current PhD and postdoctoral opportunities in the Feldpausch group, see Opportunities. There is a post-doctoral opportunity at INPE to study forest degradation, fire, and soil carbon using remote sensing.


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Workshop Exchange of Knowledge and Teaching on Burning in the Amazon, Confresa, MT-Brazil (video)

The Municipal Secretary of Education of Confresa offered the event “I Workshop Exchange of Knowledge and Teaching on Burning in the Amazon”, which took place on February 22, 23 and 24, 2023, in the face-to-face format at the municipality of Confresa, MT. Funded by the University of Exeter (UK) and the Natural Environmental Research Council, […]


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Ancient fires enhance Amazon forest drought resistance

In our recent paper, “Ancient fires enhance Amazon forest drought resistance” published in Frontiers in Forests and Global Change, we studied if ancient fires can alter the response of Amazonian forests to drought events.


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Tropical Forest Research in Geography at the University of Exeter (video)

Researchers at the University of Exeter describe some of the globally important research that they lead on tropical forests and peatlands.


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Fully funded PhD opportunity: Soil carbon dynamics following Amazon Forest fires: quantifying the role of fire severity and charcoal, NERC GW4+ DTP PhD

This opportunity has closed. For current PhD and postdoctoral opportunities in the Feldpausch group, see Opportunities. This project is one of a number that are in competition for funding from the NERC Great Western Four+ Doctoral Training Partnership (GW4+ DTP).  The GW4+ DTP consists of the Great Western Four alliance of the University of Bath, […]


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Radiocarbon-dated soil charcoal reveals how fire varied across Amazon forests through time

In our recent paper, “Forest Fire History in Amazonia Inferred From Intensive Soil Charcoal Sampling and Radiocarbon Dating” published in Frontiers in Forests and Global Change, we examined the history of ancient fire in intact rainforests across Amazonia using radiocarbon dating.


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QUEX Workshop: Fire Regimes in Tropical and Sub-Tropical Peatlands During the Holocene

A two-day hybrid workshop (both online and in-person) was held on 25th and 26th November 2021 that included 20 participants from different institutions in the United Kingdom, Australia, Colombia, Spain, and Brazil.


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Nearly 300 people join online workshop on fire in Amazonia

The four-day workshop “Science and Practices of Fire in Amazonia: past, present and future”, organized by the University of Exeter, with Brazilian institutions (Cemaden, INPE and UNEMAT), was held between 8 and 11 November – online. The workshop was attended by almost 300 people*, most of them Brazilian and about 15% of foreigners (Europe, Africa, […]


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Workshop on Science and Practices of Fire in Amazonia: past, present, future

This workshop took place on 8–11 November 2021. Read the report: Nearly 300 people join online workshop on fire in Amazonia. The Workshop held by the University of Exeter, National Center for Monitoring and Early Warning of Natural Disasters (CEMADEN), National Institute for Space Research (INPE), and University of Mato Grosso State (UNEMAT) will be […]


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Taking the pulse of Earth’s tropical forests using networks of highly distributed plots

This video and paper highlight the work we are doing through ForestPlots.net to take the pulse of Earth’s tropical forests. Research and activities through Forestplots.net for the past decade and a half have created opportunities to advance understanding of tropical forests and trained the next generation of tropical forest scientists.


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Reading fire history and carbon loss from charcoal in burned Amazon forests

Research at the University of Exeter examines how measurements of charcoal reflectance can be used to understand fire regimes and carbon dynamics in tropical forests in South America.


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Fires from 2015 El Niño drought burned “fire-resistant” wet forests in central Amazonia

A new study by Pontes-Lopes et al. 2021 examining the impacts of the record-breaking drought and fires caused by the 2015/2016 El Niño has found that even the wet forests of central Amazonia, forests considered relatively fire-resistant, were affected by fire.


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Masters and PhD selection in the Tropical Forests Science Programme at INPA, Brazil

This opportunity has closed. For current PhD and postdoctoral opportunities in the Feldpausch group, see Opportunities. The public selection process is now open for assessing and selecting candidates for admission to the Masters and PhD programme in the Tropical Forests Science Programme at the National Institute of Amazonian Research (INPA) with research projects matching themes […]


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Two PhD students funded to study forest degradation and recovery within the Global Systems Institute

This opportunity has closed. For current PhD and postdoctoral opportunities in the Feldpausch group, see Research opportunities. Two complementary PhD studentships have been funded thanks to donations from long-term University of Exeter supporters, the A. G. Leventis Foundation. Both will be based within the Global Systems Institute and focus on tropical forest protection and restoration, […]


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Repeatedly burned Amazon forests have the fewest tree species: evidence from plots, Landsat and radar

Fire is an important cause of disturbance in terrestrial ecosystems and can has a major impact on biodiversity. We evaluated the effect of fire regime on species richness and tree basal area in southern Amazon forest using Landsat and PALSAR data.


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Scientists unravel how and why Amazon trees die

A huge new study has unravelled what factors control tree mortality rates in Amazon forests and helps to explain why tree mortality is increasing across the Amazon basin. The capacity of the Amazon forest to store carbon in a changing climate will ultimately be determined by how fast trees die. The new analysis found that the […]


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The global abundance of palm trees

A major study in forests across the tropics is the first global assessment of palm tree numbers to better understand forest composition, diversity, and to reduce uncertainty about the role of palms in the carbon balance in these ecosystems.


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Innovation by ancient farmers adds to biodiversity of the Amazon

Innovation by ancient farmers to improve soil fertility continue to have an impact on the biodiversity of the Amazon, a major new study shows.


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Competition influences tree growth, but not mortality, in Amazonia and tropical Africa forests

Competition among trees is an important driver of community structure and dynamics in tropical forests. Neighboring trees may impact an individual tree’s growth rate and probability of mortality, but large-scale geographic and environmental variation in these competitive effects has yet to be evaluated across the tropical forest biome.


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Even Amazon forests with no record of fire carry its legacy deep in their soils

Charcoal-derived carbon makes up a tenth of the soil carbon under Amazon forests with no known fire history, and half of it lies deeper than most soil surveys ever sample.


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