A5051605042- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Avian ecology and behavior
- Fish Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Genetic and phenotypic traits in livestock
- Species Distribution and Climate Change
- Mercury impact and mitigation studies
- Wildlife-Road Interactions and Conservation
- Advanced Statistical Methods and Models
- Wildlife Conservation and Criminology Analyses
- Animal Diversity and Health Studies
- Fish Ecology and Management Studies
- Marine animal studies overview
- Livestock and Poultry Management
- Heavy metals in environment
- Genetic diversity and population structure
- Microbial Community Ecology and Physiology
- Identification and Quantification in Food
- Environmental DNA in Biodiversity Studies
- Heavy Metal Exposure and Toxicity
- Diatoms and Algae Research
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Bird parasitology and diseases
Tour du Valat
2016-2025
Centre d'Écologie Fonctionnelle et Évolutive
2010
Centre National de la Recherche Scientifique
2010
École Pratique des Hautes Études
2010
Rhodes University
1997
Abstract Global biodiversity in freshwater and the oceans is declining at high rates. Reliable tools for assessing monitoring aquatic biodiversity, especially rare secretive species, are important efficient timely management. Recent advances DNA sequencing have provided a new tool species detection from present environment. In this study, we tested whether an environmental ( eDNA ) metabarcoding approach, using water samples, can be used addressing significant questions ecology conservation....
Comparative studies of mortality in the wild are necessary to understand evolution aging; yet, ectothermic tetrapods underrepresented this comparative landscape, despite their suitability for testing evolutionary hypotheses. We present a study aging rates and longevity across tetrapod ectotherms, using data from 107 populations (77 species) nonavian reptiles amphibians. test hypotheses how thermoregulatory mode, environmental temperature, protective phenotypes, pace life history contribute...
Abstract Amphibians are the most endangered taxa among vertebrates, and they face many threats during their complex life cycles. The species’ history traits occurrence database help understand species responses against ecological factors. Consequently, species-level-trait has gained more prominence in recent years as a useful tool for understanding dimensions of communities, assembly processes conserving biodiversity at ecosystem level environmental changes. However, Turkey, there...
Summary 1. Although the influence of water availability and precipitation regimes on amphibians has been studied at large scales, whether how interannual rainfall hydrological variations affect dynamics a local scale have rarely addressed. In this respect, accounting for in species detectability space time also overlooked. 2. We assessed effects breeding three amphibian taxa: Pelodytes punctatus , Hyla meridionalis Pelophylax spp. 20 ponds Camargue region (southern France) over 7‐year study...
Abstract Lead pollution is a worldwide environmental and health issue causing persistent detrimental effects on humans wildlife. Despite having been identified as to waterfowl century ago, in France lead shotgun pellets for hunting were banned only 2006 wetlands. We used long‐term monitoring data from the Camargue (southern France) (1) assess local effectiveness of French regulation at reducing ingestion by (2) hunter compliance with regulation. 2187 gizzards 13 species collected 38 hunters...
Within the current context of biodiversity loss a number indicators have been developed to help measure state nature and how it is changing. However, most are derived from bird populations. Reptiles amphibians could be useful ecosystem indicators, but this requires obtaining precise unbiased population parameters. This particularly challenging task for these two groups species, because individuals extremely difficult detect various reasons. We illustrate use sampling analytical method that...
Abstract Dispersal has major impacts on population dynamics, genetics and evolution, also is critical for management conservation. frequently sex‐ age‐specific, but current knowledge strongly taxonomically biased toward birds mammals. Here, we provide estimates of dispersal in a threatened freshwater turtle species, the European pond Emys orbicularis . Based 15 years capture‐mark‐recapture (CMR) monitoring DNA samples from 194 individuals, quantified both demographic genetic between three...
Mediterranean wetlands are critical strongholds for biodiversity and the provision of ecosystem functions services; yet, they being severely degraded by a number socio-economic drivers pressures, including climate change. Moreover, we still lack comprehensive understanding extent to which loss in will accelerate change processes. Here, evaluate how changes can alter Camargue (southern France). We collected data on species presence/absence, trends abundance over 40-year period combining...
Abstract Delayed maturity and high survival rates of immatures adults characterize long‐lived species’ life histories. Understanding how these traits interact in stochastic environments is essential to understand early species assist conservation planning. Unfortunately, available information demographic are often fragmentary the logistical difficulties capturing recapturing this cohort leave little room for improvement. Published immature chelonian estimates vary broadly, not age‐specific,...
We investigated epizoic algal assemblages on the shell of European pond turtles (Emys orbicularis) during two years (2013–2014). A total 60 Emys orbicularis were captured in three shallow Mediterranean wetlands located Camargue. Epizoic algae plastron (below shell) and carapace (above sampled, identified counted. Seventy-seven species comprised 51 Bacillariophyta, 11 Chlorophyta, 7 Cyanophyta, 6 Euglenophyta, 1 Dinophyta and1Xanthophyta taxa. Our findings indicated a distinct distribution...
Reserves that are closed to hunting important wintering wildfowl Anatidae. can also benefit local hunters, because they often used as day-roosts by birds prior nocturnal feeding in surrounding wetlands. In this study, we annual bags from 45 estates the Camargue, southern France, study relationship between success and distance nearest duck day-roost, which generally located protected areas. Five dabbling species Anas spp. a diving (pochard Aythya ferina) were studied. The bag roost was...
To test the effect of stocking density on growth, survival rates and size distribution juvenile swordtails, Xiphophorus helleri Heckel, under different environmental conditions, fish were stocked at 1, 3 6 I−1. Growth was monitored over a 14-week period. Fish weighed in six groups 20 per tank. Size variation determined end growth period by measuring total length each to nearest mm. two systems three densities (1, 3, I−1) replicate. The an indoor aquarium system tunnel semicommercial...
Abstract The European pond turtle, Emys orbicularis, is a wide ranging species, distributed from Northwest Africa over large part of Europe and Asia Minor to the Caspian Aral Seas. For 106 turtles France mtDNA sequence variation has been assessed, using 1031 bp portion mitochondrial cytochrome b gene. Three nine haploclades currently known entire species' range were found in France. One clade (II) represented with four very similar haplotypes, differing by one mutation, two other clades (V,...
Abstract Many banned persistent organic pollutants (POPs) remain for decades in the aquatic environment and can have harmful effects on long‐lived predators because of their high bioaccumulation biomagnification potentials. We investigated occurrence levels 18 polychlorinated biphenyls (PCBs) 16 organochlorine pesticides European pond turtles ( n = 174) from April to July 2018 Camargue wetland, France. Although was highly contaminated previous decades, plasma POPs were very low: we able...
A total of 100 specimens Emys orbicularis were collected and marked at Lake Tonga (northeastern Algeria) during 3 consecutive years (2013, 2014, 2015). Most the turtles inhabit a canal where they remain throughout whole activity season (March to October) overwinter as well. Carapace Length (CL) body weight (BW) measured for each individual E. . The size our population was more similar those northern European populations than Mediterranean populations; females significantly larger Spanish...
Abstract With five currently recognized species that form several secondary contact zones, slow worms (Anguidae: Anguis ) offer a valuable model to study the fate of evolutionary lineages in face hybridization and genetic introgression. The relationships between Western Slow Worm fragilis Italian veronensis are particularly puzzling. Their respective distributions remain poorly known on edges their parapatric ranges, as both lack external differentiation. Contra earlier mitochondrial...