A5076983805- Bird parasitology and diseases
- Viral Infections and Vectors
- Animal Behavior and Reproduction
- Vector-borne infectious diseases
- Malaria Research and Control
- Mosquito-borne diseases and control
- Avian ecology and behavior
- Bat Biology and Ecology Studies
- Yersinia bacterium, plague, ectoparasites research
- Species Distribution and Climate Change
- Parasite Biology and Host Interactions
- Amphibian and Reptile Biology
- Wildlife Ecology and Conservation
- Insect-Plant Interactions and Control
- Environmental DNA in Biodiversity Studies
- Insect and Pesticide Research
- Rabies epidemiology and control
- Identification and Quantification in Food
- Study of Mite Species
- Evolutionary Game Theory and Cooperation
- Fish Ecology and Management Studies
- Mathematical and Theoretical Epidemiology and Ecology Models
- Bartonella species infections research
- Animal Ecology and Behavior Studies
- Zoonotic diseases and public health
University of Lausanne
2012-2025
Natural History Museum of Geneva
2024-2025
Musée cantonal de zoologie de Lausanne
2013-2024
Écologie et Biologie des Interactions
2020
Ecologie & Evolution
2019
Institute of Zoology
2016
Leiden University
2001
University of York
2001
Dalhousie University
1995
1 Sex differences in levels of parasite infection are a common rule wide range mammals, with males usually more susceptible than females. Sex-specific exposure to parasites, e.g. mediated through distinct modes social aggregation between and within genders, as well negative relationships androgen immune defences thought play major role this pattern. 2 Reproductive female bats live close association clusters at maternity roosts, whereas nonbreeding females generally occupy solitary roosts....
Parental effort is usually associated with high metabolism that could lead to an increase in the production of reactive oxidative species giving rise stress. Since many antioxidants involved resistance stress can also enhance immune function, parental may diminish level otherwise parasite resistance. In present study, we performed brood size manipulation a population great tits ( Parus major ) create different levels effort. We measured and used newly developed quantitative PCR assay...
Repeated introductions and spread of invasive mosquito species (IMS) have been recorded on a large scale these last decades worldwide. In this context, members the genus Aedes can present serious risks to public health as they or may develop vector competence for various viral diseases. While Tiger (Aedes albopictus) is well-known e.g. dengue chikungunya viruses, Asian bush (Ae. j. japonicus) Ae. koreicus shown in field laboratory number viruses including dengue, West Nile fever Japanese...
Avian malaria studies have taken a prominent place in different aspects of evolutionary ecology. Despite recent interest the role vectors within complex interaction system parasite, they largely been ignored most epidemiological studies. Epidemiology disease is however strongly related to vector's ecology and behaviour, there need for basic investigations obtain better picture natural associations between Plasmodium lineages, vector species bird hosts. The aim present study was identify...
One of the major issues concerning disease ecology and conservation is knowledge factors that influence distribution parasites consequently outbreaks. This study aimed to investigate avian haemosporidian composition these in three altitudinally separated great tit (Parus major) populations western Switzerland over a three-year period. The objectives were determine lineage diversity occuring across whether altitudinal gradients govern by lineage. In this molecular approaches (PCR sequencing)...
Many studies have tracked the distribution and persistence of avian haemosporidian communities across space time at population level, but few investigated these aspects infection individual level over time. Important parasite can be missed if only trends are studied. This study aimed to determine how persistent Haemosporida in great tit individuals recaptured several years, whether parasitaemia differed by lineage (mitochondrial cytochrome b haplotype) co-infection (i.e. concurrent with...
We investigated the relative importance of dispersal and vicariance in forming Madagascar insect fauna, sequencing approximately 2300 bp from three rRNA gene regions to investigate phylogeny Afrotropical small minnow mayflies (Ephemeroptera: Baetidae). Six lineages contained trans-oceanic sister taxa, variation genetic divergence between taxa revealed relationships that range very recent ancient vicariance. Dispersal was most frequent species spend larval stage standing water, adding...
Abstract Background Knowledge on the temporal dynamics of host/vector/parasite interactions is a pre-requisite to further address relevant questions in fields epidemiology and evolutionary ecology infectious diseases. In studies avian malaria, natural history Plasmodium parasites with their mosquito vectors, however, mostly unknown. Methods Using artificial water containers placed field, we monitored relative abundance parous females Culex pipiens mosquitoes during two years (2010–2011),...
Parasites circulate on a large scale through migrating hosts that encounter wide diversity of parasites along their travels. This interaction can lead to greater similarity parasite communities between regions connected by major migration routes. Additionally, migratory species may have higher importance (network centrality) within host–parasite networks. In this study, we test these two assumptions using globally recorded data interactions birds and avian malaria (i.e. Plasmodium...
Abstract Background In vector-borne diseases, invertebrate hosts are exposed to highly variable quantities of parasites during their blood meal. This heterogeneity may partly explain the overdispersed distribution within vector population and variability in extrinsic incubation period (EIP) parasite. Indeed, quantity ingested is often considered as a good predictor that will develop vectors, well speed at which they (i.e. EIP). However, density-dependent processes can influence relationship...
Accurate detection and identification of vector-host-parasite systems are key to understanding their evolutionary dynamics design effective disease prevention strategies. Traditionally, microscopical serological techniques were employed analyse arthropod blood meals for host/parasite detection, but these limited in taxonomic resolution only pre-selected taxa. In recent years, molecular have emerged as a promising alternative, offering enhanced range. While singleplex polymerase chain...
Wind turbines represent a source of hazard for bats, especially through collision with rotor blades. With increasing technical development, tall (rotor-swept zone 50–150 m above ground level) are becoming widespread, yet we lack quantitative information about species active at these heights, which impedes proposing targeted mitigation recommendations bat-friendly turbine operation. We investigated vertical activity profiles bat assemblage, and their relationships to wind speed, within major...
Most vertebrates host a wide variety of haematophagous parasites, which may play an important role in the transmission vector-borne microorganisms to hosts. Surveillance is usually performed by collecting blood and/or tissue samples from vertebrate There are multiple methods obtain samples, can be stored for decades if properly kept. However, sampling considered invasive method and possibly harmful sampled individual. In this study, we investigated use ectoparasites as tool acquire molecular...
Bats are known reservoir hosts for a wide variety of parasites and pathogens, including bacteria protozoans. Some these pathogens vector-borne, although their role is poorly studied, ectoparasites may contribute significantly to transmission. The aim this study was molecularly detect the presence vector-borne microorganisms in bat-associated explore diversity distribution insects. We tested Bartonella spp., Polychromophilus Trypanosoma spp. bat flies fleas collected from 56 Egyptian Rousette...
Summary In disease ecology, there is growing evidence that environmental quality interacts with parasite and host to determine susceptibility an infection. Most studies of malaria parasites have focused on the infection costs incurred by hosts, few investigated mosquito vectors. The interplay between environment, vector has therefore mostly been ignored often relied unnatural or allopatric Plasmodium /vector associations. Here, we effects natural avian both fecundity survival field‐caught...
Abstract Biodiversity assessments are indispensable tools for planning and monitoring conservation strategies. Camera traps (CT) widely used to monitor wildlife have proven their usefulness. Environmental DNA (eDNA)‐based approaches increasingly implemented biomonitoring, combining sensitivity, high taxonomic coverage resolution, non‐invasiveness easiness of sampling, but remain challenging terrestrial fauna. However, in remote desert areas where scattered water bodies attract species, which...
Sex-biased infections are a recurrent observation in vertebrates. In many species, males more parasitized than females. Two potentially complementary mechanisms often suggested to explain this pattern: sexual differences susceptibility mainly caused by the effect of sex hormones on immunity and differential exposure parasites. Exposure is mostly consequence host behavioural traits, but vector-borne parasitic involve another degree complexity due active role vectors transmission....
Fungal Systematics and Evolution (FUSE) is one of the journal series to address “fusion” between morphological data and molecular phylogenetic describe new fungal taxa interesting observations. This paper 6th contribution in the FUSE series—presenting genus, twelve species, country records, three combinations. The new genus is: Pseudozeugandromyces (Laboulbeniomycetes, Laboulbeniales). The species are: Albatrellopsis flettioides from Pakistan, Aureoboletus garciae from Mexico,...
Abstract The impacts of landscape anthropization on mosquito abundance and diversity are already well studied, but the underlying ecological factors behind these effects still poorly understood. One such factor may be related to loss amphibians in human‐modified landscapes, providing ideal habitats for several species. In this study, we conducted a amphibian larvae survey 77 ponds along gradient western Switzerland. We used structural equation models investigate direct indirect building...