A5048013816- Toxoplasma gondii Research Studies
- Wildlife Ecology and Conservation
- Parasitic Infections and Diagnostics
- Rabies epidemiology and control
- Parasitic infections in humans and animals
- Herpesvirus Infections and Treatments
- Viral Infections and Vectors
- Human-Animal Interaction Studies
- Animal Ecology and Behavior Studies
- Congenital Anomalies and Fetal Surgery
- Animal Behavior and Welfare Studies
- Environmental DNA in Biodiversity Studies
- Ecology and biodiversity studies
- Yersinia bacterium, plague, ectoparasites research
- Cytomegalovirus and herpesvirus research
- Parasite Biology and Host Interactions
- Rangeland Management and Livestock Ecology
- Mosquito-borne diseases and control
- Travel-related health issues
- Wildlife-Road Interactions and Conservation
- Fire effects on ecosystems
- Avian ecology and behavior
- Identification and Quantification in Food
- Animal Behavior and Reproduction
- Indigenous Studies and Ecology
Université de Reims Champagne-Ardenne
2015-2025
Université de Rouen Normandie
2024
Normandie Université
2024
Bipar
2015
Centre Régional d’Innovation et de Transferts Technologiques des Industries du Bois
2015
Centre de Biologie et de Gestion des Populations
2015
Office National de la Chasse et de la Faune Sauvage
2003-2004
Roquette Frères (France)
2004
Centre d'Écologie Fonctionnelle et Évolutive
2004
Centre National de la Recherche Scientifique
2004
Abstract In the early 1900s, wolf ( Canis lupus ) was extirpated from France and Switzerland. There is growing evidence that species presently recolonizing these countries in western Alps. By sequencing mitochondrial DNA (mtDNA) control region of various samples mainly collected field (scats, hairs, regurgitates, blood or tissue; n = 292), we could (1) develop a non‐invasive method enabling unambiguous attribution to wolf, fox Vulpes vulpes dog familiaris ), among others; (2) demonstrate...
Toxoplasma gondii oocysts spread in the environment are an important source of toxoplasmosis for humans and animal species. Although life expectancy has been studied through infectivity inoculated soil samples, survival dynamics poorly documented. The aim this study was to quantify oocyst viability over time under two rain conditions. Oocysts were placed 54 sentinel chambers containing 18 sealed water tubes, all settled containers filled with soil. Containers watered simulate levels arid wet...
Abstract The European wildcat Felis silvestris , which can hybridize with the domestic cat catus to produce fertile hybrids, is threatened by hybridization. To identify behavioural processes that affect interbreeding, we investigated spatio‐temporal sharing between wildcats, cats and their hybrids (defined on genotypes) in a rural area of north‐eastern France where hybridization frequent. Wildcats' hybrids' home ranges were larger than those cats, they did not vary according body mass,...
In France as elsewhere in Europe the most prevalent TBD humans is Lyme borreliosis, caused by different bacterial species belonging to Borrelia burgdorferi sensu lato complex and transmitted important tick France, Ixodes ricinus. However, diagnosis of disease not always confirmed unexplained syndromes occurring after bites have become an issue. Recently, B. miyamotoi relapsing fever group same has been involved human Russia, USA Netherlands. present study, we investigate presence along with...
Toxoplasmosis is a major zoonosis, and its prevention requires multiple approaches due to the complex life-cycle of causative agent, Toxoplasma gondii. Environmental contamination by oocysts key factor in transmission T. gondii both humans meat-producing animals; however, spatial temporal variations are poorly understood. We analysed distribution seropositivity sample 210 cats, including European wildcat (Felis silvestris silvestris), domestic cat catus) their hybrids that were collected...
Rodent host dynamics and dispersal are thought to be critical for hantavirus epidemiology as they determine pathogen persistence transmission within between populations. We used landscape genetics investigate how the population of bank vole Myodes glareolus, Puumala (PUUV), vary with forest fragmentation influence PUUV epidemiology. sampled populations Ardennes, a French endemic area. inferred demographic features such size, isolation migration regard configuration. next analysed M....
Studying the environmental occurrence of parasites concern for humans and animals based on coprosamples is an expanding field work in epidemiology ecology health. Detecting quantifying Toxocara spp. Echinococcus multilocularis, two predominant zoonotic helminths circulating European carnivores, feces may help to better target measures prevention. A rapid, sensitive, one-step quantitative PCR (qPCR) allowing detection E. multilocularis was developed present study, combined with a host fecal...
SUMMARY Toxoplasmosis is largely present in rural areas but its spatial distribution this environment remains poorly known. In particular, it unclear if of high density cats, the only hosts excreting Toxoplasma gondii , constitute foci prevalence. To improve our understanding T. areas, we performed a serological survey rodents from two villages France. We trapped 710 including commensal rats and meadow or forest voles mice. The presence was examined using PCR, mice inoculation modified...
Recolonization by wolves (Canis lupus) of areas extensive sheep breeding in the French Alps early 1990s led to intense conflicts over losses domestic livestock. We used data on depredations and herd management from 45 pastures Mercantour Mountains build models attack kill rates quantify efficiency using livestock-guarding dogs gathering or confining herds at night prevent damage. Efficiency was lowest when were ranging freely highest confined night. The effect livestockguarding heterogeneous...
The ‘Resources Dispersion Hypothesis’ (RDH, Macdonald, 1983) suggests that, for solitary foragers such as the red fox Vulpes vulpes , group formation is dependent on resource distribution heterogeneity. Our data are compatible with this hypothesis. Rodents, which constituted main prey, were heterogeneously distributed in time and space. Six foxes (three males three females) radiotracked continuously from February 1989 to October 1990 (20 months) we observed spatial sharing between one male...
Abstract Background Puumala virus, the agent of nephropathia epidemica (NE), is most prevalent hantavirus in Europe. The risk for human infection seems to be strongly correlated with prevalence virus (PUUV) populations its reservoir host species, bank vole Myodes glareolus . In humans, risks major viral diseases are affected by presence helminth infections. We therefore proposed analyse influence both community and landscape on PUUV among Ardennes, a endemic area France. Results Among 313...
Abstract DNA metabarcoding of faecal samples is being successfully used to study the foraging niche species. We assessed ability two benchtop high-throughput sequencing (HTS) platforms, identify a large taxonomic array food items from domestic cats Felis silvestris catus , including prey and human-related taxa (pet leftovers leaving undetectable solid remains in faeces). Scats captive feeding trial ( n = 41) free-ranging individuals 326) were collected analysed using cyt b mini-barcode...
Echinococcus multilocularis, Toxoplasma gondii and Toxocara spp. are foodborne parasites whose eggs or oocysts spread in the environment via canid felid faeces. They can cause infections humans following raw consumption of contaminated fruit vegetables. In this study, their occurrence was investigated by quantitative polymerase chain reaction (qPCR) 254 carnivore faeces deposited 94 kitchen gardens northeastern France that were sampled between two six times from October 2011 to April 2013....
Abstract In order to identify the respective importance of ecological and biological factors involved in transmission Echinococcus multilocularis , we estimated grassland vole intermediate host ( Microtus sp. Arvicola terrestris ) population densities, relation diet definitive (red fox, Vulpes vulpes with prevalence E. fox population. The study was conducted Ardennes, north-eastern France, which is an area a high incidence alveolar echinococcosis. Surface index methods showed that most...
The faeces of the red fox, Vulpes vulpes (Linnaeus), and domestic cat, Felis catus can be responsible for spreading eggs Echinococcus multilocularis Leuckart, 1863 oocysts Toxoplasma gondii (Nicolle et Manceaux, 1908) into environment. accidental ingestion these or oocysts, through consumption raw fruits vegetables grown in contact with contaminated soil, lead to alveolar echinococcosis (AE) toxoplasmosis humans. present study provides a quantitative assessment faecal deposition by foxes...
Detection of Toxoplasma gondii DNA in cat feces is considered indicative the presence T. oocysts. This study aims to demonstrate that high sensitivity qPCR can lead detection absence A immune toxoplasmosis was fed with a mouse experimentally infected gondii. this parasite performed by on passed: (i) day ingested prey; (ii) during three previous days; and (iii) following days. The kinetics results are clearly not linked oocyst shedding result demonstrates detect related bradyzoites from an...