Corneille Ewango

Corneille Ewango
University of Kisangani · Department of Ecology & Forest Management

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31
Publications
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184
Citations

Publications

Publications (31)
Article
Full-text available
Secondary forests constitute an increasingly important component of tropical forests worldwide. Although cycling of essential nutrients affects recovery trajectories of secondary forests, the effect of nutrient limitation on forest regrowth is poorly constrained. Here we use three lines of evidence from secondary forest succession sequences in cent...
Article
Full-text available
Background Across the tropics, the share of secondary versus primary forests is strongly increasing. The high rate of biomass accumulation during this secondary succession relies on the availability of essential nutrients, such as nitrogen (N). Nitrogen primarily limits many young secondary forests in the tropics. However, recent studies have shown...
Preprint
Background Across the tropics, the share of secondary versus primary forests is strongly increasing. The high rate of biomass accumulation during this secondary succession relies on the availability of essential nutrients, such as nitrogen (N). Nitrogen primarily limits many young secondary forests in the tropics. However, recent studies have shown...
Article
Full-text available
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 how aboveground biomass stocks and fluxes are distributed with tree size. We analyzed repeat tree censuses from 25 large‐scale (4–52 ha) forest plots...
Article
Full-text available
Most Central African rainforests are characterized by a remarkable abundance of light-demanding canopy species: long-lived pioneers (LLP) and non-pioneer light demanders (NPLD). A popular explanation is that these forests are still recovering from intense slash-and-burn farming activities, which abruptly ended in the 19th century. This “human distu...
Preprint
All species must balance their allocation to growth, survival and recruitment. Among trees, evolution has resulted in different strategies of partitioning resources to these key demographic processes, i.e. demographic trade-offs. It is unclear whether the same demographic trade-offs structure tropical forests worldwide. Here, we used data from 13 l...
Article
Full-text available
A diversity of phenological strategies has been reported for tropical tree species. Defoliation and seasonal dormancy of cambial activity inform us on how trees cope with water stress during the dry season, or maximize the use of resources during the rainy season. Here, we study the matching between leaf phenology (unfolding and shedding) and cambi...
Preprint
All species must balance their allocation to growth, survival and recruitment. Among trees, evolution has resulted in different strategies of partitioning resources to these key demographic processes, i.e. demographic trade-offs. It is unclear whether the same demographic trade-offs structure tropical forests worldwide. Here, we used data from 13 l...
Article
Full-text available
The Congo Basin's rapidly growing population still largely depends on shifting cultivation for both energy and food security. This nexus of population growth and ecological impact will continue to exacerbate landscape degradation in the coming decades. To quantify the effects of land-use intensity on soil nutrient stocks and the functional composit...
Article
Full-text available
Tropical forests store 40-50% of terrestrial vegetation carbon. Spatial variations in aboveground live tree biomass carbon (AGC) stocks remain poorly understood, in particular in tropical montane forests. Because of climatic and soil changes with increasing elevation, AGC stocks are lower in tropical montane compared to lowland forests. Here we ass...
Article
Full-text available
Central African tropical forests face increasing anthropogenic pressures, particularly in the form of deforestation and land-use conversion to agriculture. The long-term effects of this transformation of pristine forests to fallow-based agroecosystems and secondary forests on biogeochemical cycles that drive forest functioning are poorly understood...
Article
Full-text available
Tropical forests store 40–50 per cent of terrestrial vegetation carbon1. However, spatial variations in aboveground live tree biomass carbon (AGC) stocks remain poorly understood, in particular in tropical montane forests2. Owing to climatic and soil changes with increasing elevation3, AGC stocks are lower in tropical montane forests compared with...
Article
Full-text available
Human disturbance is increasingly affecting forest dynamics across the tropics. Forests can recover via natural secondary succession to pre‐disturbance levels of biodiversity, species composition, and ecosystem carbon stocks. Central Africa will be subject to increasingly high shifting cultivation pressure in the next decades, but succession trajec...
Article
Full-text available
A key feature of human behavioral diversity is that it can be constrained by cultural preference (“cultural override”); that is, population-specific preferences can override resource availability. Here we investigate whether a similar phenomenon can be found in one of our closest relatives, as well as the potential impacts of ecological differences...
Article
Full-text available
The original version of this article unfortunately contained mistakes in the Discussion and Acknowledgments sections. The changes are shown below:
Article
Full-text available
Aims: Amphibians and reptiles of the Albertine Rift in the Congolese part of the country are poorly documented. The objective of this research was to perform a preliminary inventory of the diversity of amphibians and reptiles in the region. Study Design: This study was designed following scientific expeditions related to studies on chimpanzees. Lit...
Article
Full-text available
Amphibians are poorly known in the Okapi Wildlife Reserve (RFO) in DRC, and amphibians are identified as one of the most threatened animal taxa among vertebrates living on Earth. The aim of this study was to inventory amphibians in the Okapi Wildlife Reserve. To do this, amphibians were caught by hand during the day (between 06:00-08:00 hrs) and at...
Article
Full-text available
The Democratic Republic of Congo's forests are rich and diversified in biodiversity, particularly in high-altitude regions where they are reputed to be very rich in animal and plant biological diversity, particularly amphibians. Nevertheless, this fauna has not been well documented so far, mainly because of the lack of expertise in this field in th...
Article
The present work focused on the comparative study of allometric equations for the evaluation of forest biomass in the Yoko Forest Reserve located in the Ubundu Territory, Tshopo Province in the Democratic Republic of Congo. The main objective of this work is to identify the different allometric equations needed to estimate forest biomass Four fore...
Article
The oil palm industry in DR Congo is being reborn after years of decay. This was sparked by an increasing national demand for palm oil, mostly due to demographic growth. The rebirth was also by the use of palm oil in diverse industries, and by the increased demand for other products derived from the crop. Long-abandoned industrial plantations have...
Chapter
This chapter assessed the impact of human activities on deforestation and sustainability of water resources and livelihoods in the Congo Basin. It mainly aimed to assess forest degradation in the Yoko Reserve from 1976 to 2015 and investigate the compatibility of Landsat imagery for forest monitoring. Digital image processing for unsupervised class...
Chapter
This study assessed the impact of human activities on deforestation and sustainability of water resources and livelihoods in the Congo Basin. It mainly aimed to assess forest degradation in the Yoko reserve from 1976 to 2015 and investigate the compatibility of Landsat imagery for forest monitoring. Digital Image processing for unsupervised classif...
Chapter
This study assessed the impact of human activities on deforestation and sustainability of water resources and livelihoods in the Congo Basin. It mainly aimed to assess forest degradation in the Yoko reserve from 1976 to 2015 and investigate the compatibility of Landsat imagery for forest monitoring. Digital Image processing for unsupervised classif...
Article
Full-text available
Knowledge about the biogeographic affinities of the world’s tropical forests helps to better understand regional differences in forest structure, diversity, composition, and dynamics. Such understanding will enable anticipation of region-specific responses to global environmental change. Modern phylogenies, in combination with broad coverage of spe...
Chapter
Full-text available
This study assessed the impact of human activities on deforestation and sustainability of water resources and livelihoods in the Congo Basin. It mainly aimed to assess forest degradation in the Yoko reserve from 1976 to 2015 and investigate the compatibility of Landsat imagery for forest monitoring. Digital Image processing for unsupervised cla...
Article
Full-text available
Aframomum ngamikkense, a new species from the Misotshi-Kabogo Massif in the Albertine Rift, Eastern D.R. Congo, is described and illustrated. It differs from the superficially similar A. pseudostipulare in the shorter and obtuse ligules up to 5 mm long (vs. acute and up to 10 mm long), and the indistinctly 3-lobed apex of the stamen (vs. distinctly...
Chapter
Full-text available
With its remarquable biodiversity and ecology complexity, the tropical world has always been very attractive to biologists interested in life evolution and this is reflected by the numerous conference papers dealing with fundamental research issues, like the bat ethical sampling in the DRCongo rainforest to monitor specific activity patterns.
Poster
Full-text available
The study reported here aimed at testing the performance of non-invasive bat sampling and marking to monitor specific activity patterns and infer diet preferences

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Projects (2)
Archived project
Palm oil is produced in the humid and sub-humid tropics. It is a commodity that causes controversy due to its impacts on smallholder livelihoods, local communities, biodiversity, land productivity and climate change. Given these issues, the focus, size and depth of the debates surrounding palm oil production are growing. Addressing the inclusiveness of smallholders who make up a substantial part of the value chain, this ETFRN News presents the experiences, perceptions and perspectives of individuals, companies, institutions and NGOs, on what has been done and is being done on the ground to increase the involvement of, and benefits to, smallholder oil palm growers. How do these actions and their impacts differ between different smallholder types and organizations? How do they differ between countries, regions and corporate contexts? What are the effects of various enabling policy environments? And what do the authors in this edition mean by ‘inclusiveness’?