Renaud Scheifler

Renaud Scheifler
University of Franche-Comté | UFC · UMR 6249 Laboratoire Chrono-Environnement

PhD

About

121
Publications
18,126
Reads
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Introduction
Research themes : ecotoxicology and stress ecology - Bioavailability, transfer, and effects of pollutants in terrestrial food webs - Interactions between pollution and other natural and anthropogenic stresses, especially pathogens - Development of non lethal procedures for wildlife studies - Wildlife toxicology, Landscape ecotoxicology
Additional affiliations
September 2003 - present
University of Franche-Comté
Position
  • Lecturer (Maître de Conférences - HDR)

Publications

Publications (121)
Article
Full-text available
Pollution with trace metals (TM) has been shown to affect diversity and/or composition of plant and animal communities. While ecotoxicological studies have estimated the impact of TM contamination on plant and animal communities separately, ecological studies have widely demonstrated that vegetation is an important factor shaping invertebrate commu...
Preprint
Full-text available
Pollution with trace metals (TM) has been shown to affect diversity and/or composition of plant and animal communities. While ecotoxicological studies have estimated the impact of TM contamination on plant and animal communities separately, ecological studies have widely demonstrated that vegetation is an important factor shaping invertebrate commu...
Article
The aim of this work was to determine PAH concentrations in two matrices, fluid samples and biological tissue, from Red Kite. For this purpose, a simplified and sensitive method for the analysis of 16 PAHs at trace levels in small samples of whole blood and liver was developed and validated using dispersive extraction in n-hexane combined with gas...
Article
Exposure of terrestrial mammals to chemical contaminants like trace metals (TMs) is considered to be mainly based on trophic transfer. Although relationships between TM transfer to animals and identity of contaminated food have been studied, the variation of the TM transfer with respect to diet diversity has been poorly documented. In this study, t...
Article
In wildlife ecotoxicology, the rationale for using blood rather than other body fluids or tissues is that sampling blood is a minimally invasive technique without animal mortality, providing both ethical and scientific benefits. To date, few studies are available on the relationships between blood and organ metal concentrations of small mammals liv...
Article
Full-text available
Mammals are mainly exposed to trace metals via consuming contaminated food. Several studies have demonstrated relationships between metal concentrations in food and in animal tissues. However, potential effects of trace metals on feeding behaviour of wildlife have been poorly documented under field conditions, despite experimental evidence showing...
Article
Full-text available
Throughout history, ancient human societies exploited mineral resources all over the world, even in areas that are now protected and considered to be relatively pristine. Here, we show that past mining still has an impact on wildlife in some French protected areas. We measured cadmium, copper, lead, and zinc concentrations in topsoils and wood mous...
Article
A full life-cycle (240 days) bioassay using the terrestrial snail, Cantareus aspersus, allowing exposure during embryogenesis and/or the growth and reproduction phases, was used to assess the effects of Bypass®, a glyphosate-based herbicide (GlyBH), on a range of endpoints, including parameters under endocrine control. As a positive control, a mixt...
Article
Full-text available
Urbanization is a growing phenomenon characterized by a complete restructuring of natural areas. In urban bird populations, a reduced offspring survival and body condition and an overall lower breeding success are often observed compared to populations inhabiting more natural habitats. Higher pollution levels and poorer quality of natural resources...
Article
Full-text available
Urban habitats are described as having an overall negative influence on many fitness-related traits in several bird species, but a vital function such as immunity remains poorly studied. The immune response is strongly linked to individual condition, which partly depends on resource availability and the parasitic context that often differ between u...
Article
Full-text available
While the lesser horseshoe bat (Rhinolophus hipposideros) was common in most western and Central Europe, this species endured a dramatic decline in the 1950s–1970s. The causes are thought to comprise the extensive spread of chemical pollutants affecting both bat and prey populations, changes in landscape composition and structure leading to populat...
Article
Accumulation of heavy metals in soils poses a potential risk to plant production, which is related to availability of the metals in soil. The phytoavailability of metals is usually evaluated using extracting solutions such as salts, acids or chelates. The purpose of this study was to identify the most significant soil parameters that can be used to...
Article
Full-text available
The exploration of the effects of urbanization on bird demography has attracted much attention, and several studies found lower reproductive success in towns, which suggested strong environmental constraints. Here, we conducted a 3-year study to explore the consequences of urbanization on the breeding success of two species that originated in fores...
Article
Full-text available
The aim of this study was to analyze the expression of three metallothionein (MT) isoform genes (CdMT, CuMT and Cd/CuMT), already known from adults, in the Early Life Stage (ELS) of Cantareus aspersus. This was accomplished by detection of the MT isoform-specific transcription adopting Polymerase Chain Reaction (PCR) amplification and quantitative...
Article
Full-text available
Le Morvan et les Cévennes sont des massifs protégés pour leurs paysages et leur biodiversité exceptionnels. Cependant ces régions ont été le lieu d’activités minières et métallurgiques dès la Protohistoire. De telles activités peuvent affecter les écosystèmes de manière durable. Il est donc important de les localiser, puis de quantifier leur impact...
Conference Paper
Full-text available
Les œufs d’escargot terrestre de l’espèce petit-gris Cantareus aspersus (syn. Helix aspersa) peuvent être utilisés pour évaluer la toxicité de divers contaminants. La mesure des effets embryotoxiques classiquement réalisée est le succès d’éclosion après 15 à 20 jours d’exposition (Druart et al. 2012). Cependant, les mécanismes impliqués dans la mis...
Conference Paper
Full-text available
The aim of this study was, therefore, first to look at the expression of the three distinct MT isoforms in Early Life Stage (ELS) of C. aspersus by detection of isogene-specific cDNAs and secondly, to quantify their Cd dependant gene upregulation by quantitative Real-Time detection PCR. Freshly laid eggs were exposed for 24h to 3 solutions of Cd (5...
Article
In Europe, bromadiolone, an anticoagulant rodenticide authorized for plant protection, may be applied intensively in fields to control rodents. The high level of poisoning of wildlife that follows such treatments over large areas has been frequently reported. In France, bromadiolone has been used to control water voles (Arvicola terrestris) since t...
Chapter
Trace metals (TMs) are naturally present in the environment, however, soils can exhibit high levels of these persistent pollutants due to anthropogenic activities, and such contamination is recognised as a subject of concern for both organism and ecosystem health [1], [2]. Assessment of the environmental and ecological factors that may influence th...
Article
Cadmium (Cd) can be toxic to terrestrial snails, but few data are available about its genotoxic effects on early life stages (ELS). The aim of this study was to investigate the genotoxic potential of Cd in embryos of Helix aspersa using a new approach that couples Random Amplified Polymorphic DNA (RAPD) and a high-resolution capillary electrophores...
Article
Full-text available
Wildlife is exposed to natural (e.g., food availability and quality, parasitism) and anthropogenic stressors (e.g., habitat fragmentation, toxicants). Individual variables (e.g., age, gender) affect behaviour and physiology of animals. Together, these parameters can create both great inter-individual variations in health indicators and interpretati...
Conference Paper
Wildlife is considered to be mainly exposed to environmental contaminants via oral route. Food web analysis is therefore crucial in environmental risk assessment and management. In this context, diet information is commonly obtained from literature and little attention has been given to site-specific considerations (habitat, season…), which might c...
Conference Paper
Full-text available
Recent studies have shown that parasitic infections in aquatic animals may be related to environmental pollution. However, to our knowledge, this link has received little attention in terrestrial ecosystems. Thus, the aim of this study was to test the hypothesis that pollution by trace metals (TM) influences prevalence to bacterial infection transm...
Article
Full-text available
Anthropogenic pollution poses a threat for the environment and wildlife. Trace metals (TMs) are known to have negative effects on haematological status, oxidative balance, and reproductive success in birds. These pollutants particularly increase in concentration in industrialized, urbanized and intensive agricultural areas. Pollutants can also inte...
Article
The breeding parameters and the egg and nestling morphology of Cyanistes caeruleus populations from rural, intermediate, and urban sites in Algeria and the relationships of those variables with lead contamination were studied during three consecutive years. Breeding success was explained only by predation and vandalism rates. Predation was higher i...
Conference Paper
Full-text available
Snail eggs have been shown to be a relevant material to monitor embryotoxicity of chemicals. Abnormalities or development delays in non-hatched eggs after exposure to cadmium (Cd: 2 to 10mg/L) have been reported [Druart et al. 2010]. However, although Cd is known to possibly cause mutagenic, teratogenic and embryotoxic effects and can also induce t...
Conference Paper
Full-text available
Body condition and somatic indices are widely used in ecology as estimators of wild animal health status, because they are hypothesized to be representatives of individual health and fitness. The biological (age, gender, sexual activity…) and environmental (food availability, habitat quality…) factors influencing these indices, when used as in situ...
Poster
Full-text available
The lesser horseshoe bat, Rhinolophus hipposideros, was formerly widespread in north-western Europe, but has undergone a dramatic decline from the 1960s. Ecological disturbances, largely due to human intervention, have been related to this decline. Habitat loss and environmental contamination by chemical substances are regularly cited as being the...
Article
Although understanding the influence of the spatial arrangement of habitats and interacting communities on the processes of pollutant flux and impacts is critical for exposure and risk assessment, to date few studies have been devoted to this emergent topic. We tested the hypothesis that landscape composition and diversity affect the transfer of tr...
Article
Although soil characteristics modulate metal mobility and bioavailability to organisms, they are often ignored in the risk assessment of metal transfer. This paper aims to determine the ability of chemical methods to assess and predict cadmium (Cd), lead (Pb) and zinc (Zn) environmental bioavailability to the land snail Cantareus aspersus. Snails w...
Conference Paper
Arsenic (As) is a chemical element naturally occurring in soils but industrial and mining activities have long been releasing high As levels into the environment. These elevated concentrations might affect directly exposed organisms and also organisms that feed on them along the food chain. Despite this, little is known about As behaviour in the en...
Conference Paper
Full-text available
Body condition and somatic indices are widely used in ecology as estimators of wild animal health status, because they are hypothesized to be representatives of individual health and fitness. The potential confounding factors influencing these indices, when used as in situ markers of toxicity, are however poorly known. The aims of this study were t...
Article
Full-text available
Bioassays for ecotoxicity testing for the same non-target soil organism are not currently available for contaminants that can be present in the liquid, solid or gaseous phase of soil. Here, three bioas-says with three modes (liquid, solid or gaseous phase, LPB, SPB and GPB, respectively) allowing the assessment of the embryotoxicity of chemicals or...
Conference Paper
Knowing the network of interactions between organisms is essential to understand ecosystem functioning. In particular, documenting food web structure allows to understand transfers of energy and matters. Among them, many pollutants, especially metallic trace elements, are transferred via food between organisms. Diet of animals and its spatial and t...
Article
Bioassays for ecotoxicity testing for the same non-target soil organism are not currently available for contaminants that can be present in the liquid, solid or gaseous phase of soil. Here, three bioassays with three modes (liquid, solid or gaseous phase, LPB, SPB and GPB, respectively) allowing the assessment of the embryotoxicity of chemicals or...
Article
Poisoning by pesticides is considered one of the primary threats to the Red Kite Milvus milvus. We studied the diet of this raptor in an area of eastern France where the rodenticide bromadiolone is widely used to control Water Vole Arvicola terrestris outbreaks. A high degree of specialization for Water Voles was noted, as their remains were identi...
Article
Full-text available
PurposeThe aim of this work was to assess the transfer and effects of two widely used herbicides on the land snail Helix aspersa during long-term exposure under laboratory conditions. Materials and methodsNewly hatched snails were exposed for 168days to soil and/or food contaminated with a formulation of glyphosate (Bypass®) or glufosinate (Basta®...
Article
This study investigates the relevance of several soil chemical extractions (calcium chloride, acetic acid, citric acid and a four-step sequential procedure) and predicted free metal ion activities in the soil solution to characterise the transfer of trace metals (Cd, Pb, and Zn) from soil to snail soft tissues over a large smelter-impacted area (Me...
Article
This paper presents a field-study of real pesticide application conditions in a vineyard. The objective was to measure the exposure, the transfer and the effects of pesticides on a non-target soil invertebrate, the land snail Helix aspersa. There was no drift of the herbicides (glyphosate and glufosinate) whereas the fungicides (cymoxanil, folpet,...
Article
Bioavailability is a key parameter in conditioning contaminant transfer to biota. However, in risk assessment of terrestrial contamination, insufficient attention is being paid to the influence of soil type on trace metal bioavailability. This paper addresses the influence of soil properties on the chemical availability of cadmium (Cd) and lead (Pb...
Data
Prediction of trace metal (Cd, Pb, Zn) concentrations in topsoils of Metaleurop-impacted area. (DOC)
Data
Empirical omnidirectional variograms with variographic envelopes and retained fitted models for Cd, Pb and Zn. (TIF)
Data
Total concentrations of trace metals in soils from Metaleurop-impacted area, according to soil use type. (DOC)
Data
Parameters of the fitted variogram models, results of cross-validation and median variance of kriged values. (DOC)
Article
Full-text available
Concepts and developments for a new field in ecotoxicology, referred to as "landscape ecotoxicology," were proposed in the 1990s; however, to date, few studies have been developed in this emergent field. In fact, there is a strong interest in developing this area, both for renewing the concepts and tools used in ecotoxicology as well as for respond...
Article
A cross-transplantation field experiment was performed to investigate about possible adaptation/acclimatization to metal pollution in common garden snail Cantareus aspersus (ex-Helix aspersa) and brown-lipped grove snail Cepaea nemoralis populations. Adults were collected from an area surrounding a former smelter (ME), highly polluted by trace meta...
Article
Currently no bioassays are available to assess the embryotoxicity of chemicals with terrestrial soil invertebrates. We therefore presented a new method for embryotoxicity testing with snail eggs: a relevant biological material that incubates in soil and that can be exposed to contaminants from leachates and soil solution. The effects of aqueous sol...