A5072562682- Genetic diversity and population structure
- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Bat Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Plant and animal studies
- Animal Ecology and Behavior Studies
- Genomics and Phylogenetic Studies
- Evolution and Paleontology Studies
- Viral Infections and Vectors
- Environmental DNA in Biodiversity Studies
- melanin and skin pigmentation
- Identification and Quantification in Food
- Parasite Biology and Host Interactions
- Vector-borne infectious diseases
- Bird parasitology and diseases
- Turtle Biology and Conservation
- Biochemical Analysis and Sensing Techniques
- Chromosomal and Genetic Variations
- Evolution and Genetic Dynamics
- Olfactory and Sensory Function Studies
- Dermatological diseases and infestations
- Fish Ecology and Management Studies
- Ecology and Vegetation Dynamics Studies
University of Lausanne
2016-2025
Federal Roads Office
2022
Agroscope
2020-2021
Federal Office for Agriculture
2020
Uppsala University
2017
The University of Sydney
2007-2015
Natural History Museum Aarhus
2010
Natural History Museum of Denmark
2010
Abstract Palearctic water frogs (genus Pelophylax ) are an outstanding model in ecology and evolution, being widespread, speciose, either threatened or threatening to other species through biological invasions, capable of siring hybrid offspring that escape the rules sexual reproduction. Despite half a century genetic research hundreds publications, diversity, systematics biogeography still remain highly confusing, no small part due lack correspondence between studies. To provide...
Abstract Because an individual's investment into the immune system may modify its dispersal rate, function evolve rapidly in invader. We collected cane toads ( Rhinella marina ) from sites spanning their 75‐year invasion history Australia, bred them, and raised progeny standard conditions. Evolved shifts should manifest as differences responses among of parents different locations. Parental location did not affect offspring's cell‐mediated response or stress response, but blood offspring...
Significance Reproductive isolation is instrumental to the formation of new species (speciation), but it remains largely enigmatic how many incompatibilities are required prevent hybridization and where they lie across genome. By studying patterns admixture in amphibian hybrid zones, we found that reproductive initiated by numerous small-effect scattered genome rather than concentrated a few important genes. Unlike mammals birds, which Y/W degeneracy major cause dysfunctions,...
The frog leg industry relies on a global, largely underregulated market with potentially important ecological impact such as the uncontrolled harvest of declining wild populations and introduction invasive species. Here, we inferred taxonomic nature geographic origins legs imported to Switzerland by DNA barcoding. Out 34 samples, retrieved eight distinct lineages attributed five species from four genera, namely Hoplobatrachus rugulosus Vietnam, Fejervarya cancrivora Indonesia (invasive...
Comparative genomic studies are revealing that, in sharp contrast with the strong stability found birds and mammals, sex determination mechanisms surprisingly labile cold-blooded vertebrates, frequent transitions between different pairs of chromosomes. It was recently suggested context this high turnover, some chromosome might be more likely than others to co-opted as Empirical support, however, is still very limited. Here we show that sex-linked markers from three highly divergent groups...
Abstract Cryptic phylogeographic diversifications provide unique models to examine the role of phylogenetic divergence on evolution reproductive isolation, without extrinsic factors such as ecological and behavioural differentiation. Yet, date very few comparative studies have been attempted within radiations. Here, we characterize a new speciation continuum in group widespread Eurasian amphibians, Pelobates spadefoot toads, by conducting multilocus (restriction site associated DNA...
Abstract Phylogeographical analyses that identify the geographical origin of parasites in invading species can clarify parasites’ potential for biological control invader and risks posed by parasite to native species. Our data on nuclear mitochondrial genetic sequences show nematode lungworms ( Rhabdias spp.) invasive Australian populations cane toads Bufo marinus ) are pseudosphaerocephala , a South American We did not find this lungworm any frogs sympatric with toads, suggesting does...
Abstract Background Tanganya virus (TGNV), the only shrew-associated hantavirus reported to date from sub-Saharan Africa, is harbored by Therese's shrew ( Crocidura theresae ), and phylogenetically distinct Thottapalayam (TPMV) in Asian house Suncus murinus ) Imjin (MJNV) Ussuri white-toothed lasiura ). The existence of myriad soricid-borne hantaviruses Eurasia North America would predict presence additional where multiple lineages have evolved diversified. Methods Lung tissues, collected...
Abstract Alternative morphotypes can confer important selective advantages in different habitats, whereas they be penalized other circumstances. In ectotherms, such as reptiles, the body colour have direct effects on numerous aspects of their existence, thermoregulation or prey–predator interactions. Darker melanic individuals show lower skin reflectance and consequently heat up more rapidly maintain optimal temperatures easily than lighter coloured individuals. As a consequence, melanistic...
Abstract Sex‐based differences in dispersal distances can affect critical population parameters such as inbreeding rates and the spatial scale of local adaptation. Males tend to disperse further than females mammals, whereas reverse is true for birds; too few reptiles have been studied reveal generalities that group. Although are most diverse abundant tropics, tropical this respect. We combine data from a long‐term (10‐year) mark–recapture study with genetic information (based on nine...
Abstract Many alpine species are under threat from global climate change, as their geographic ranges become increasingly fragmented and unsuitable. Understanding rates determinants of gene flow among such populations, over historical well recent timescales, can help to identify populations threat. It is also important clarify the degree which loss local reduces overall genetic diversity within taxon. The endangered Blue Mountains Water Skink ( Eulamprus leuraensis ) restricted <40 small...
Taxonomic studies of parasites can be severely compromised if the host species affects parasite morphology; an uncritical analysis might recognize multiple taxa simply because phenotypically plastic responses morphology to physiology. Pentastomids genus Raillietiella are endoparasitic crustaceans primarily infecting respiratory system carnivorous reptiles, but also recorded from bufonid anurans. The delineation pentastomids at generic level is clear, taxonomic status many not. We collected...
The marsh frog (Pelophylax ridibundus s.l.) is the number one amphibian invader in Western Europe. In Switzerland, frogs were introduced 1950–1960s and progressively colonized most of northern parts country. We investigated this invasion using molecular tools. mapped cryptic presence three monophyletic mitochondrial lineages (P. ridibundus, Pelophylax kurtmuelleri, cf. bedriagae from southeastern Europe) consistent with registered importations by a local frog-leg industry. High nuclear...
The genetic era has revolutionized our perception of biological invasions. Yet, it is usually too late to understand their genesis for efficient management. Here, we take the rare opportunity reconstruct scenario an uprising invasion famous water frogs (Pelophylax) in southern France, through a fine-scale survey. We identified three different taxa over less than 200 km2: autochthonous P. perezi, along with alien ridibundus and kurtmuelleri, which have suddenly become invasive. As...
Because it is indicative of reproductive isolation, the amount genetic introgression across secondary contact zones increasingly considered in species delimitation. However, patterns admixture at range margins can be skewed by regional dynamics hybrid zones. In this context, we posit an important role for phylogeographic history: located within glacial refugia (putatively formed during Late-Pleistocene) should better defined than those post-glacial or introduced ranges Holocene and...
Abstract An earlier study revealed the strong phylogeographical structure of lesser white‐toothed shrew ( Crocidura suaveolens group) within northern Palaearctic. Here, we aim to reconstruct colonization history Mediterranean islands and clarify biogeography relationships poorly documented Middle East region with We performed analyses on 998‐bp‐long haplotypes mitochondrial cytochrome b gene 143 samples collected around basin, including East. The suggest that Cypriot belongs rare group...