Corneille E. N. Ewango
A5024160860- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- African Botany and Ecology Studies
- Forest ecology and management
- Species Distribution and Climate Change
- Plant Diversity and Evolution
- Plant Water Relations and Carbon Dynamics
- Peatlands and Wetlands Ecology
- Fire effects on ecosystems
- Mediterranean and Iberian flora and fauna
- Geology and Paleoclimatology Research
- Coastal wetland ecosystem dynamics
- Geological formations and processes
- Conservation, Biodiversity, and Resource Management
- Zoonotic diseases and public health
- Wildlife Ecology and Conservation
- Tree-ring climate responses
- Atmospheric and Environmental Gas Dynamics
- Remote Sensing and LiDAR Applications
- Forest Management and Policy
- Ethnobotanical and Medicinal Plants Studies
- Forest Ecology and Biodiversity Studies
- Mycorrhizal Fungi and Plant Interactions
- Primate Behavior and Ecology
- Invertebrate Taxonomy and Ecology
Wildlife Conservation Society Congo
2014-2025
Université de Kisangani
2018-2024
University of Mbuji Mayi
2024
Wageningen University & Research
2009-2022
International Union for Conservation of Nature
2022
Université Officielle de Bukavu
2022
Centre National de la Propriété Forestière
2021
University of the Philippines Los Baños
2020
University of the Philippines Diliman
2020
Forest Research Institute
2020
Abstract Aim To examine the contribution of large‐diameter trees to biomass, stand structure, and species richness across forest biomes. Location Global. Time period Early 21st century. Major taxa studied Woody plants. Methods We examined large density, biomass using a global network 48 (from 2 60 ha) plots representing 5,601,473 stems 9,298 210 plant families. This was assessed three metrics: largest 1% ≥ 1 cm diameter at breast height (DBH), all DBH, those rank‐ordered that cumulatively...
Thermal sensitivity of tropical trees A key uncertainty in climate change models is the thermal forests and how this value might influence carbon fluxes. Sullivan et al. measured stocks fluxes permanent forest plots distributed globally. This synthesis plot networks across climatic biogeographic gradients shows that dominated by high daytime temperatures. extreme condition depresses growth rates shortens time resides ecosystem killing under hot, dry conditions. The effect temperature worse...
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response environmental change, as very little is known about species. A focus on common may circumvent this challenge. Here we investigate abundance patterns using inventory data 1,003,805 trees with trunk diameters at least 10 cm across 1,568 locations
Abstract Numerous studies have shown reduced performance in plants that are surrounded by neighbours of the same species 1,2 , a phenomenon known as conspecific negative density dependence (CNDD) 3 . A long-held ecological hypothesis posits CNDD is more pronounced tropical than temperate forests 4,5 which increases community stabilization, coexistence and diversity local tree 6,7 Previous analyses supporting such latitudinal gradient 8,9 suffered from methodological limitations related to...
Most ecological hypotheses about species coexistence hinge on differences, but quantifying trait differences across in diverse communities is often unfeasible. We examined the variation of demographic traits using a global tropical forest data set covering 4500 10 large-scale tree inventories. With hierarchical Bayesian approach, we quantified distribution mortality and growth rates all at each site. This allowed us to test prediction that facilitate richness, as suggested by theory tradeoff...
ABSTRACT A recent increase in published studies of lianas has been paralleled by a proliferation protocols for censusing lianas. This article seeks to uniformity liana inventories providing specific recommendations the determination which taxa include, location diameter measurement points on individual stems, setting minimum stem cutoffs, treatment multiple‐stemmed and rooted clonal groups, noncylindrical stems. Use more uniform may facilitate comparison independently collected data sets...
In Amazonian tropical forests, recent studies have reported increases in aboveground biomass and primary productivity, as well shifts plant species composition favouring fast-growing over slow-growing ones. This pervasive alteration of mature forests was attributed to global environmental change, such an increase atmospheric CO2 concentration, nutrient deposition, temperature, drought frequency, and/or irradiance. We used standardized, repeated measurements 2 million trees ten large (16-52...
ABSTRACT We test the hypotheses proposed by Gentry and Schnitzer that liana density basal area in tropical forests vary negatively with mean annual precipitation (MAP) positively seasonality. Previous studies correlating abundance these climatic variables have produced conflicting results, warranting a new analysis of drivers based on different dataset. compiled pan‐tropical dataset containing 28,953 lianas (≥2.5 cm diam.) from conducted at 13 Neotropical 11 Paleotropical dry to wet lowland...
Abstract. Advances in forest carbon mapping have the potential to greatly reduce uncertainties global budget and facilitate effective emissions mitigation strategies such as REDD+ (Reducing Emissions from Deforestation Forest Degradation). Though broad-scale is based primarily on remote sensing data, accuracy of resulting stock estimates depends critically quality field measurements calibration procedures. The mismatch spatial scales between inventory plots larger pixels current planned...
Long-term surveys of entire communities species are needed to measure fluctuations in natural populations and elucidate the mechanisms driving population dynamics community assembly. We analysed changes abundance over 4000 tree 12 forests across world periods 6-28 years. Abundance all large consistent with models which temporal environmental variance plays a central role. At some sites we identify clear drivers, such as fire drought, that could underlie these patterns, but at other there is...
Abstract Quantifying the relationship between tree diameter and height is a key component of efforts to estimate biomass carbon stocks in tropical forests. Although substantial site‐to‐site variation height–diameter allometries has been documented, time consuming nature measuring all heights an inventory plot means that most studies do not include height, or else use generic pan‐tropical regional allometric equations height. Using dataset 73 plots where at least 150 trees had in‐field...
Significance The responses of tropical forests to heat and drought are critical uncertainties in predicting the future impacts climate change. 2015–2016 El Niño Southern Oscillation (ENSO) resulted unprecedented low precipitation across tropics, including very poorly studied African forest region. We assess ENSO using on-the-ground measurements. Across 100 long-term plots, record high temperatures did not significantly reduce carbon gains from tree growth or increase losses mortality....
The world's largest tropical peatland complex is found in the central Congo Basin. However, there a lack of situ measurements to understand peatland's distribution and amount carbon stored it. So far, peat this region has been sampled only largely rain-fed interfluvial basins north Republic Congo. Here we present first extensive field surveys Democratic Congo, which covers two-thirds estimated area, including from previously undocumented river-influenced settings. We use data both countries...
Summary Tree size shapes forest carbon dynamics and determines how trees interact with their environment, including a changing climate. Here, we conduct the first global analysis of among‐site differences in aboveground biomass stocks fluxes are distributed tree size. We analyzed repeat censuses from 25 large‐scale (4–52 ha) plots spanning broad climatic range over five continents to characterize biomass, woody productivity, mortality vary diameter. examined median, dispersion, skewness...
Abstract Organisms of all species must balance their allocation to growth, survival and recruitment. Among tree species, evolution has resulted in different life‐history strategies for partitioning resources these key demographic processes. Life‐history tropical forests have often been shown align along a trade‐off between fast growth high survival, that is, the well‐known fast–slow continuum. In addition, an orthogonal proposed tall stature—resulting from survival—and recruitment success,...
The forested swamps of the central Congo Basin store approximately 30 billion metric tonnes carbon in peat1,2. Little is known about vulnerability these stocks. Here we investigate this using peat cores from a large interfluvial basin Republic and palaeoenvironmental methods. We find that accumulation began at least 17,500 calibrated years before present (cal. yr BP; taken as AD 1950). Our data show accumulated between around 7,500 to 2,000 cal. BP much more decomposed compared with older...