Tobias Fremout

• PhD Bioscience Engineering; MSc Agro- and Ecosystems Engineering
• Researcher at Alliance Bioversity International - CIAT

Understanding the vulnerability of tree species to anthropogenic threats is important for the efficient planning of restoration and conservation efforts. We quantified and compared the effects of future climate change and four current threats (fire, habitat conversion, overgrazing, and overexploitation) on the 50 most common tree species of the tro...

Forest restoration projects involving active planting should prioritize species that are useful to local communities, while also considering species' threat status and resistance to local stress factors, but scientific knowledge on these criteria is scarce, especially in understudied tropical ecosystems. We hypothesized that local ecological knowle...

At the start of the UN Decade of Ecosystem Restoration (2021–2030), the restoration of degraded ecosystems is more than ever a global priority. Tree planting will make up a large share of the ambitious restoration commitments made by countries around the world, but careful planning is needed to select species and seed sources that are suitably adap...

Remote sensing-based approaches are important for evaluating ecosystem degradation and the efficient planning of ecosystem restoration efforts. However, the large majority of remote sensing-based degradation assessments are trend-based, implying that they can only detect degradation that occurred after medium or high-resolution satellite imagery be...

Tree-based forest landscape restoration interventions require knowledge on the suitability and origin of seed sources and planting material. A common recommendation is to select locally sourced material based on the assumption that it is well adapted to local environmental conditions and to avoid introduction of maladapted genes. However, faced wit...

Tropical dry forests are among the most endangered ecosystems globally, despite their critical socio-ecological importance. In recent decades, various tree-planting initiatives have been undertaken to restore these forests, yielding mixed results. To enhance restoration effectiveness, it is imperative to adopt a predictive approach, focussing on th...

The report documents on-farm tree species diversity across 5 regions in the northern part of Ghana and illustrates the functioning of Diversity for Restoration (D4R), a decision-making tool that supports tree species and seed sources selection for restoration. This work was conducted as part of the CGIAR Initiatives on Mixed Farming Systems. CGIAR...

Poster presentation on D4R tool for Lebanon (see https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2664.14079 for more information on the tool)

Climate change is expected to impact cacao cultivation in Ecuador, the fifth largest cacao producing country in the world and largest exporter of fine flavour cacao. The objective of this study was to evaluate the future impact of climate change on the suitable distribution of cultivated and wild cacao and identify areas where climate change tolera...

The global movement for ecosystem restoration has gained momentum in response to the Bonn Challenge (2010) and the UN Decade on Ecosystem Restoration (UNDER, 2021–2030). While several science‐based guidelines exist to aid in achieving successful restoration outcomes, significant variation remains in the outcomes of restoration projects. Some of thi...

Wild edible plants (WEPs) can provide diverse and nutrient-rich food sources that contribute to the health and well-being of communities worldwide. In northwestern Kenya, WEPs are vital dietary components for nomadic pastoral communities with limited access to diverse cultivated food crops. However, the increasing impact of climate change poses a t...

As a result of the revised conservation and threat assessment of highly valuable Asian rosewood species facilitated by the Alliance, the IUCN Red List was updated for the first time in over 20 years to include Asian Rosewoods as Critically Endangered. Additionally, the Laos government included actions to conserve the genetic resources of rare and t...

Ecosystem services (ES) are the connection between nature and society, and are essential for the well-being of local communities that depend on them. In Ethiopia, church forests and the surrounding agricultural matrix supply numerous ES. However, the ES delivered by both land use types have not yet been assessed simultaneously. Here we surveyed bot...

Versión en alta resolución / high-resolution version: https://www.dropbox.com/scl/fo/kwc3erumfs3nqu3z061e3/h?rlkey=477vijhlp3tnd1oksimawapkg&dl=0

Societal Impact Statement Modern food systems push agriculture to focus on a small number of commercial crops, while there is a very large diversity of untapped edible plants that could be used to address food security and nutrition. Poor and monotonous diets are closely linked to the complex burden of multiple forms of malnutrition and dietary ris...

p>In the original publication of the article, under the case study “Case study 3: Participatory guarantee system to stimulate agroecological transition in Cuba”, the reference “Fernández León 2016” should read “Fernández and León 2016”. Further, the correct reference should read as below, Díaz Fernández I, León DE (2016) Gestión Empresarial y Géner...

Governments are updating national strategies to meet global goals on biodiversity, climate change and food systems proposed in the Convention on Biological Diversity post-2020 framework and agreed at the United Nation’s Climate Change Conference (COP26) and Food Systems Summit (UNFSS). This represents a unique and crucial opportunity to integrate a...

Question: Anthropogenic disturbances severely affect dryland forests worldwide, but their effects on woody species population structure and long-term persistence remain poorly understood. Location: The research was conducted in Desa'a, a dry Afromontane forest in northern Ethiopia, Tigray region. Aims: Woody species diversity, extinction debt, rec...

Climate change and other anthropogenic threats are increasingly imperilling the diverse biomes of Central Africa, which are globally important for biodiversity, carbon storage and people's livelihoods. The objectives of this paper were to: (i) map the vulnerability of 100 socio-ecologically important priority tree species in Central Africa to clima...

Understanding the impact of multiple anthropogenic threats on tree species is urgently needed for estimating population decline and enabling coordinated and efficient conservation actions. We applied a spatially explicit framework to assess the vulnerability of three highly valuable Asian rosewood species (Dalbergia cochinchinensis, D. cultrata, D....

Pongamia (Millettia pinnata) has recently gained attention as a novel biofuel feedstock. However, yield levels and dynamics of this largely undomesticated species remain poorly understood. This study addresses the critical lack of scientific evidence by collecting primary seed and oil yield data from 81 pongamia trees across a range of cultivation...

Tree diversity in Asia's tropical and subtropical forests is central to nature-based solutions. Species vulnerability to multiple threats, which affects the provision of ecosystem services, is poorly understood. We conducted a region-wide, spatially explicit vulnerability assessment (including overexploitation, fire, overgrazing, habitat conversion...

Tree diversity in Asia's tropical and subtropical forests and landscapes is the foundation to nature-based solutions • Species' vulnerability to multiple threats determines the provision of ecosystem services but remains poorly understood • The species were highly threatened by one or more of the threats in an average of 47% of their native ranges

Achieving multi-million-hectare commitments from countries around the world to restore degraded lands in resilient and sustainable ways requires, among other things, huge volumes of tree planting material. Seed systems encompassing all forest reproductive material (e.g., seeds, cuttings, stakes, and wildings), are key to ensuring that sufficient pl...

Natural regeneration of trees may provide a cost‐effective way to restore degraded tropical dry forests, but the factors predominantly affecting natural regeneration success are poorly understood. We performed a multifactor analysis of natural regeneration in an Afromontane forest in Northern Ethiopia. Inventory plots of 400 m2, each with a nested...

Aim Cacao (Theobroma cacao L.) is expected to be vulnerable to climate change. The objectives of this study were to (a) assess the future impact of climate change on cacao in Peru and (b) identify areas where climate change‐tolerant genotypes are potentially present. Location Peru. Methods Drawing on 19,700 to and1,200 presence points of cultivat...

OBJETIVO El objetivo del estudio es evaluar los efectos del cambio climático en la distribución de las poblaciones silvestres de 20 especies de árboles amenazadas. ÁREA DE ESTUDIO El área de estudio es el bosque de las regiones amazónicas de Huánuco, Amazonas, Junín, Loreto, Madre de Dios, Pasco, San Martín y Ucayali. SELECCIÓN DE LAS 20 ESPECIES I...

OBJETIVO El objetivo del estudio es evaluar los efectos del cambio climático en la distribución de las poblaciones silvestres de 20 especies de aves. ÁREA DE ESTUDIO El área de estudio es el bosque de las regiones Amazónicas de Huánuco, Amazonas, Junín, Loreto, Madre de Dios, Pasco, San Martín y Ucayali. SELECCIÓN DE LAS 20 ESPECIES Inicialmente, s...

1. At the start of the UN Decade of Ecosystem Restoration (2021-2030), the restoration of degraded ecosystems is more than ever a global priority. Tree planting will make up a large share of the ambitious restoration commitments made by countries around the world, but careful planning is needed to select species and seed sources that are suitably a...

The tropical dry forests of NW Peru are heavily shaped by the El Niño Southern Oscillation (ENSO), where especially El Niño brings rain to arid to semi‐arid areas. However, the resulting effects on biodiversity patterns remain largely unknown as well as the effect of environmental variables on the floristic composition under varying rainfall patter...

Posters sobre la propagación y los usos de 16 especies de los bosques secos del norte de Perú y el sur de Ecuador

Vanilla, an expensive but popular spice used in many industries, faces problems related to its supply. Some of these problems are due to the fact that vanilla cultivation is based on clonal material of a single species (Vanilla planifolia) and is dominated by just a few countries located outside the native growing areas of aromatic vanilla species,...

Este informe proporciona un análisis de 86 experiencias de restauración y 45 fuentes semilleras en el bosque seco tropical del norte del Perú que fue recopilado a través de entrevistas y de la revisión de documentos facilitados por las instituciones involucradas con el fin de comprender el estado actual de la restauración en este ecosistema, y esta...