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

Posted Posted in Amazonia, Biodiversity, Carbon sequestration, Carbon storage, Climate change, Fire, Forest degradation, Forest dynamics, Teaching

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, specifically understanding carbon storage within degraded and recovering forest ecosystems.

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Fire-related forest properties observed using Landsat and radar data

Posted Posted in Amazonia, Biodiversity, Carbon storage, Fire, Forest degradation, Forest regrowth, Remote sensing, Tree mortality, Uncategorized

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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Special Issue: Transformation of Tropical Forests Through Fire

Posted Posted in Biodiversity, Carbon sequestration, Carbon storage, Climate change, Drought, Fire, Forest degradation, Forest dynamics, Forest regrowth, Remote sensing, Temperature, Tree growth, Tree mortality, Tropical forest

The fire regime of tropical forests is changing rapidly, with implications for forest cover, carbon storage, species composition, biodiversity, function, and climate. These changes are having a range of impacts over varying spatiotemporal scales and are explored in a journal special issue on the Transformation of Tropical Forests through Fire. (more…)

Scientists unravel how and why Amazon trees die

Posted Posted in Amazonia, Carbon sequestration, Carbon storage, Climate change, Forest dynamics, Forest regrowth, Tree growth, Tree mortality, Tropical forest

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 mean growth rate of the tree species is the main risk factor behind Amazon tree death, with faster-growing trees dying off at a younger age. These findings have important consequences for our understanding of the future of these forests.

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PhD in Geography (NERC GW4+ DTP): The ecology of lightning strikes – How many trees in tropical forests killed by lightning?

Posted Posted in Africa, Biodiversity, Carbon sequestration, Carbon storage, Climate change, Fire, Forest dynamics, Lightning, Tree mortality, Tropical forest

We are seeking qualified and motivated candidates to pursue a PhD studying how lighting affects tree mortality, carbon dynamics, and forest composition in tropical forests. Applications for the NERC GW4+ project are open, with a closing date of 16:00 on Friday 8th January 2021.

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

Posted Posted in Africa, Amazonia, Carbon sequestration, Climate change, Drought, Forest dynamics, Forest structure, Tree growth, Tree mortality

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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