Fabien Spicher

Fabien Spicher
Université de Picardie Jules Verne | UPJV · EDYSAN - Ecologie et dynamique des systèmes anthropisés

About

66
Publications
24,021
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888
Citations
Citations since 2016
57 Research Items
855 Citations
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
2016201720182019202020212022050100150200250300
Introduction
I am a technical engineer studying anthropised ecosystems in a changing environment. My knowledge and skills allow me to study different ecosystems (forest and agro-ecosystem) from the point of view of their characteristics and their functioning at different spatial and temporal scales. Thus, my activities are declined in different themes or tools within the ecology like: • Forest ecology • Plant Ecology and Ecophysiology • Agroecology • Instrumentation and experimentation • Biological invasion • Historical ecology
Additional affiliations
October 2011 - December 2014
AgroParisTech
Position
  • Technician
November 2009 - October 2011
French National Institute for Agriculture, Food, and Environment (INRAE)
Position
  • Technician

Publications

Publications (66)
Article
To ensure sustainable forest management, the assessment and monitoring of soil compaction and rutting is essential. Here, we used an airborne light detection and ranging derived digital terrain model (LiDAR‐derived DTM), available for the forest of Compiègne in North France, to compute a spatial index of soil rutting. Following an environmental sys...
Article
Full-text available
Aim: The amount of forest edges is increasing globally due to forest fragmentation and land-use changes. However, edge effects on the soil seed bank of temperate forests are still poorly understood. Here, we assessed edge effects at contrasting spatial scales across Europe and quantified the extent to which edges can preserve the seeds of forest s...
Article
Full-text available
Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation canopies and near the ground surface, where critical ecosystem functions occur and most terrestrial species reside. Here, we...
Article
Quercus spp. are one of the most important tree genera in temperate deciduous forests in terms of biodiversity, economic and cultural perspectives. However, natural regeneration of oaks, depending on specific environmental conditions, is still not sufficiently understood. Oak regeneration dynamics are impacted by climate change, but these climate i...
Article
Full-text available
Intensive agriculture has profoundly altered biodiversity and trophic relationships in agricultural landscapes, leading to the deterioration of many ecosystem services such as pollination or biological control. Information on which spatio-temporal factors are simultaneously affecting crop pests and their natural enemies is required to improve conse...
Article
Full-text available
Global forest cover is heavily fragmented. Due to high edge-to-surface ratios in small forest patches, a large proportion of forests is affected by edge influences involving steep microclimatic gradients. Although forest edges are important ecotones and account for 20% of the global forested area, it remains unclear how biotic and abiotic drivers a...
Article
Ecological research heavily relies on coarse-­gridded climate data based on standardized temperature measurements recorded at 2 m height in open landscapes. However, many organisms experience environmental conditions that differ substantially from those captured by these macroclimatic (i.e. free air) temperature grids. In forests, the tree canopy f...
Article
Full-text available
Context Evidence for effects of habitat loss and fragmentation on the viability of temperate forest herb populations in agricultural landscapes is so far based on population genetic studies of single species in single landscapes. However, forest herbs differ in their life histories, and landscapes have different environments, structures and histori...
Article
Forests harbour large spatiotemporal heterogeneity in canopy structure. This variation drives the microclimate and light availability at the forest floor. So far, we do not know how light availability and sub‐canopy temperature interactively mediate the impact of macroclimate warming on understorey communities. We therefore assessed the functional...
Article
Full-text available
Crop monitoring is essential for ensuring food security in a global context of population growth and climate change. Satellite images are commonly used to estimate crop parameters over large areas, and the freely available Synthetic Aperture Radar (SAR) Sentinel-1 (S-1) and optical Sentinel-2 (S-2) images are relevant for that purpose combining hig...
Article
Aim Climate warming reshuffles biological assemblages towards less cold‐adapted but more warm‐adapted species, a process coined thermophilization. However, the velocity at which this process is happening generally lags behind the velocity of climate change, generating a climatic debt the temporal dynamics of which remain misunderstood. Relying on h...
Article
1. Forest biodiversity worldwide is affected by climate change, habitat loss and fragmentation, and today 20 % of the forest area is located within 100 m of a forest edge. Still, forest edges harbour a substantial amount of terrestrial biodiversity, especially in the understorey. The functional and phylogenetic diversity of forest edges have never...
Preprint
Full-text available
Research in environmental science relies heavily on global climatic grids derived from estimates of air temperature at around 2 meter above ground1-3. These climatic grids however fail to reflect conditions near and below the soil surface, where critical ecosystem functions such as soil carbon storage are controlled and most biodiversity resides4-8...
Article
Aim Variation in plant defence traits has been frequently assessed along large‐scale macroclimatic clines. In contrast, local‐scale changes in the environment have recently been proposed to also modulate plant defence traits. Yet, the relative importance of drivers at both scales has never been tested. We aimed to quantify the relative importance o...
Article
Forests play a key role in global carbon cycling and sequestration. However, the potential for carbon drawdown is affected by forest fragmentation and resulting changes in microclimate, nutrient inputs, disturbance and productivity near edges. Up to 20% of the global forested area lies within 100 m of an edge and, even in temperate forests, knowled...
Article
Full-text available
In the global context of population growth and climate change, monitoring crops is necessary to sustain agriculture and conserve natural resources. While many studies have demonstrated the ability of optical and SAR remotely sensed data to estimate crop parameters, these data have not been compared or combined to predict crop phenological stages. D...
Article
Forest edges are interfaces between forest interiors and adjacent land cover types. They are important elements in the landscape with almost 20% of the global forest area located within 100 m of the edge. Edges are structurally different from forest interiors, which results in unique edge influences on microclimate, functioning and biodiversity. Th...
Article
In this study, we aim to evaluate the respective and combined effect of soil tillage reduction and winter cover crops (CCs) on both weed species recruitment and sunflower (Helianthus annuus) yields. By controlling the species composition and propagule pressure of weeds, we tested four soil cover rotation treatments with winter CCs (either Camelina...
Article
Hedgerows have the potential to facilitate the persistence and migration of species across landscapes, mostly due to benign microclimatic conditions. This thermal buffering function may become even more important in the future for species migration under climate change. Unfortunately, there is a lack of empirical studies quantifying the microclimat...
Article
Full-text available
To evaluate the combined effect of different agricultural practices on photosynthetic nitrogen and water-use efficiency, winter wheat was grown in the field under tillage and no-till conditions, with and without cover crops under low and high nitrogen fertilization inputs. Leaf physiological traits, such as the rate of photosynthesis, stomatal cond...
Article
Are hedgerows efficient corridors for forest‐dwelling species within agricultural landscapes? Do time and space interact synergistically to enhance forest plant species accumulation in hedgerows (i.e. the species‐time‐area relationship)? Does the distribution profile of forest herbs along hedgerows differ between specialist and generalist species?...
Article
Questions Does the influence of forest edges on plant species richness and composition depend on forest management? Do forest specialists and generalists show contrasting patterns? Location Mesic, deciduous forests across Europe. Methods Vegetation surveys were performed in forests with three management types (unthinned, thinned 5‐10 years ago an...
Article
Soil compaction, which results from the skidding of heavy machines used in forest operations, can seriously damage forest productivity. Indeed, it alters soil structure, disturbs its physical features and consequently affects gas exchange and biological activities. The impact of compaction on soil health has been widely studied, but less is known a...
Article
Forest fragmentation affects biodiversity locally (α‐diversity) and beyond – at relatively larger scales (γ‐diversity) – by increasing dispersal and recruitment limitations. Yet, does an increase in fragmentation affects the relationship between α‐ and γ‐diversity and what can we learn from it? Northern France. We surveyed 116 forest patches across...
Article
Full-text available
Aim: Forest understorey microclimates are often buffered against extreme heat or cold, with important implications for the organisms living in these environments. We quantified seasonal effects of understorey microclimate predictors describing canopy structure, canopy composition and topography (i.e., local factors) and the forest patch size and di...
Article
Full-text available
Context Small forest fragments are often the most abundant type of semi-natural habitat in intensive agricultural landscapes. Wild pollinators can use these forest patches as nesting or foraging habitat. However, the importance of small forest fragments as pollinator habitat has been neglected so far. Objectives We evaluated the role of these fore...
Article
Full-text available
There is growing evidence that plant viruses manipulate host plants to increase transmission-conducive behaviors by vectors. Reports of this phenomenon frequently include only highly susceptible, domesticated annual plants as hosts, which constrains our ability to determine whether virus effects are a component of an adaptive strategy on the part o...
Article
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1.Reducing the deleterious effects of intensive tillage and fertilisation on ecosystem integrity and human health is challenging for sustainable agriculture. The use of cover crops has been advocated as a suitable technique for this purpose, but scientific evidence to support this has been scarce. 2.After four years and a complete rotation; includi...
Presentation
Full-text available
Luvisols are part of the world most productive soils and are widely used for intensive farming, like in NorthWest Europe. The wideness of deforestation over those lands emphasizes the necessity to study soil evolution triggered by those land use changes. Recent works on loessic luvisols revealed deep alkalinization dynamics through decennial to sec...
Article
Aim Revisits of non‐permanent, relocatable plots first surveyed several decades ago offer a direct way to observe vegetation change and form a unique and increasingly used source of information for global change research. Despite the important insights that can be obtained from resurveying these quasi‐permanent vegetation plots, their use is prone...
Poster
Full-text available
In many rural landscapes across Europe, biodiversity has experienced a dramatic decline following the “Green revolution” of the 1960s and the widespread use of agrochemicals. This decline considerably reduced the amount of ecosystem services delivered by agroecosystems. Increasing food production while reducing negative environmental impacts is cha...
Article
Full-text available
Soil profiles keep records of the legacies of historical land uses on soil physicochemical properties with deep‐soil (3m depth) profiles providing information on centuries‐old dynamics. By combining geohistorical archives on past land‐uses and management practices together with soil pH data from 19 plots scattered across five study areas in North‐F...
Poster
Full-text available
During the forest operations using heavy machines, soil will be extremely harmed by the compaction. Soil compaction is one of the main causes of reduction in forest productivity, since it affects the soil physically, which contributes to disturb the edaphic life as whole. In the first time soil compaction decreases porosity, which leads to increase...
Article
Full-text available
Plant viruses strongly influence the physiology of their host plants and phytophagous insect vectors, thereby affecting ecological interactions between them. Despite the important role of natural enemies on insect vector control and thus on virus dissemination, the influence of plant viruses on the third trophic level received little attention. We...
Article
Full-text available
Les effets de la densité du peuplement et de la sécheresse estivale ont été analysés sur la croissance en diamètre et en hauteur du Chêne sessile (Quercus petraea) à l’échelle du peuplement et de l’arbre. Les données des inventaires dendrométriques issues de deux réseaux d’expérimentations sylvicoles ont été utilisées (réseaux LERFOB et GIS Coop, 9...
Article
Anthropogenic inputs of trace elements (TE) into soils constitute a major public and environmental health problem. Bioavailability of TE is strongly related to the soil physicochemical parameters and thus to the ecosystem type. In order to test whether soil parameters influence the response of the bacterial community to TE pollution, we collected s...
Conference Paper
Full-text available
This paper presents a study focusing on the urban biodiversity and its benefits for the population. The Grand Nancy metropolis was selected as study area. Potential sites hosting urban vegetation were identified and located, such as, wastelands, base of trees, embankments, urban forests….A field inventory made it possible to characterize the urban...
Article
Full-text available
The use of nitrogen (N) fertilizer and glyphosate-based herbicides is increasing worldwide, with agriculture holding the largest market share. The agronomic and socioeconomic utilities of glyphosate are well established; however, our knowledge of the potential effects of glyphosate applied in the presence or absence of long-term N fertilization on...
Article
Full-text available
To propose a species distribution modelling framework and its companion “iSDM” R package for predicting the potential and realized distributions of invasive species within the invaded range. Northern France. The non-equilibrium distribution of invasive species with the environment within the invaded range affects the environmental representativenes...
Poster
Full-text available
Intensive agriculture, using high inputs such as nitrogen (N) fertilizers, pesticides and soil tillage provides sufficient food production but at the expense of biodiversity and ecosystem integrity. In this context, a shift of farming paradigm is needed to meet the global food demand and the challenge of a sustainable agriculture. Earlier studies o...
Poster
Full-text available
Le tassement du sol par les engins forestiers constitue une cause de dégradation importante et conduit à une baisse de la productivité sylvicole. De nombreux travaux ont montré que le tassement induit une diminution de porosité et de perméabilité qui, selon le type de sol, peut entrainer de l’hydromorphie et donc l’asphyxie des racines ainsi que la...
Poster
Full-text available
En raison de leur forte teneur en matière organique, les boues d’épuration représentent un levier intéressant de la fertilité des terres agricoles. En effet, les micro-organismes du sol vont digérer en partie ces matières organiques, les transformer en éléments minéraux , et les rendre disponibles pour la culture suivante. Toutefois, l’épandage des...
Poster
Full-text available
In the last few decades, classical farming practices depending on high agricultural inputs, such as nitrogen fertilizers and soil tillage have allowed sufficient food production. However, important ecological cost and a strong degradation of ecosystem services was observed in return. Therefore, environmentally-friendly farming practices, such as ec...
Poster
Full-text available
Le sol est un compartiment essentiel des écosystèmes terrestres hébergeant une biodiversité hypogée impliquée dans de nombreux services éco-systémiques. La biodiversité des communautés microbiennes du sol a été décrite comme étant fortement associée aux propriétés physico-chimiques de ces sols, lesquelles sont également liées aux changements d’usag...
Poster
Known for decades for its agronomic benefits, and widely used by farmers throughout the world, conservation agriculture struggles to be installed definitely in Europe. It was shown that tillage was responsible for the overall erosion of soil fertility. However, there is still a large debate about the real role of no-till in soil carbon sequestratio...
Article
Full-text available
Une étude comparative de 151 peuplements purs et mélangés de sapin pectiné dans le massif vosgien détermine la complémentarité d’utilisation des ressources face aux contraintes environnementales, sécheresse notamment. Certaines espèces adaptent leur usage de la ressource différemment suivant la compétition ou l’accès aux ressources d’eau. Le sapin...
Poster
Full-text available
Tropospheric ozone acts as a phytotoxin which produces an oxidative stress in plants. Its concentration increases and represents a significant threat as it leads to foliar injuries, decreased photosynthesis, reduced biomass and thus, important economic losses in agriculture and forestry. Differences of sensitivity to ozone have been observed betwee...
Article
Full-text available
Nous avons modélisé sous SIG les différentes composantes nécessaires pour calculer le bilan en eau des sols, avec une résolution spatiale fine, inexistante auparavant. Ces données ont été validées, puis nous avons comparé différentes méthodes de calcul des bilans en eau et indices disponibles, mettant en évidence l'intérêt de l'utilisation de carte...
Article
Full-text available
The behaviour of 30-year-old pedunculate oak trees growing in Lorraine on two different waterlogged soils (acidic redoxisol and pelosol) was studied. To reduce the constraints arising from excess water during autumn and winter, different drainage techniques were tested (ridge drainage, trenches 10 or 20 m apart). The study focussed on the effects o...
Article
The effect of ozone (O(3)) on stomatal regulation was studied in three Euramerican poplar genotypes (Populus deltoides × Populus nigra: Carpaccio, Cima and Robusta). The impact of O(3) on stomatal conductance responses to variations in blue light, red light, CO(2) concentration and vapour pressure deficit (VPD) was studied. Upon O(3) exposure, a sl...
Poster
Full-text available
Ozone effects on stomatal responses to environmental parameters (blue light, red light, CO 2 and VPD) in three poplar genotypes and the study of gene expression on guard cells. Introduction : Tropospheric ozone acts as a phytotoxin which produces an oxidative stress in plants. Its concentration increases and represents a significant threat. Two way...
Article
The behaviour of 30-year-old pedunculate oak trees growing in Lorraine on two different waterlogged soils (acidic redoxisol and pelosol) was studied. To reduce the constraints arising from excess water during autumn and winter, different drainage techniques were tested (ridge drainage, trenches 10 or 20 m apart). The study focussed on the effects o...

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