A5042039846- Animal Behavior and Reproduction
- Avian ecology and behavior
- Bird parasitology and diseases
- Marine animal studies overview
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Genetic diversity and population structure
- Arctic and Antarctic ice dynamics
- Mercury impact and mitigation studies
- Aerospace Engineering and Energy Systems
- Primate Behavior and Ecology
- Vector-borne infectious diseases
- Neuroinflammation and Neurodegeneration Mechanisms
- Malaria Research and Control
- T-cell and B-cell Immunology
- Animal Ecology and Behavior Studies
- Animal Nutrition and Physiology
- Immune Cell Function and Interaction
- Amphibian and Reptile Biology
- Genetic and phenotypic traits in livestock
- Animal Vocal Communication and Behavior
- Parasite Biology and Host Interactions
- Viral Infections and Vectors
- Physiological and biochemical adaptations
- Telomeres, Telomerase, and Senescence
Centre d'Etudes Biologiques de Chizé
2020-2025
Centre National de la Recherche Scientifique
2014-2025
Institute of Avian Research
2016-2023
Laboratoire de Biométrie et Biologie Evolutive
2015-2022
Université Claude Bernard Lyon 1
2015-2022
La Rochelle Université
2020-2022
Biogéosciences
2010-2019
Université de Bourgogne
2012-2019
Central Avian Research Institute
2018
Systématique, adaptation, évolution
2015
Host resources can drive the optimal parasite exploitation strategy by offering a good or poor environment to pathogens. Hosts living in resource-rich habitats might offer favourable developing parasites because they provide wealth of resources. However, hosts afford higher investment into costly immune defences providing an effective barrier against infection. Understanding how adapt different quality is major challenge light current human-driven environmental changes. We studied role...
Abstract Telomeres are protective caps at the end of eukaryotic chromosomes that shorten with age and in response to stressful or resource‐demanding conditions. Their length predicts individual health lifespan across a wide range animals, but whether observed positive association between telomere is environmentally induced, set conception due shared genetic basis, has not been tested wild animals. We applied quantitative “animal models” longitudinal measurements collected over 10‐year period...
Abstract Background Understanding the evolution of migration requires knowledge patterns, sources, and consequences variation in migratory behaviour, a need exacerbated by fact that many species show rapid population declines require knowledge-based conservation measures. We therefore detailed on spatial temporal distribution individuals across their annual cycle, quantify how components behaviour vary within among individuals. Methods tracked 138 journeys undertaken 64 adult common terns (...
Anthropogenic pollution poses a threat for the environment and wildlife. Trace metals (TMs) are known to have negative effects on haematological status, oxidative balance, reproductive success in birds. These pollutants particularly increase concentration industrialized, urbanized intensive agricultural areas. Pollutants can also interfere with normal functioning of immune system and, as such, alter dynamics host-parasite interactions. Nevertheless, impact infectious diseases has been...
Vector-borne diseases are particularly responsive to changing environmental conditions. Diurnal temperature variation has been identified as a important factor for the development of malaria parasites within vectors. Here, we conducted survey across France, screening populations house sparrow (Passer domesticus) (Plasmodium relictum). We investigated whether in remotely-sensed variables accounted spatial observed prevalence and parasitemia. While was highly correlated diurnal range other...
Telomeres are protective caps at the end of chromosomes, and their length is positively correlated with individual health lifespan across taxa. Longitudinal studies have provided mixed results regarding within-individual repeatability telomere length. While some suggest to be highly dynamic sensitive resource-demanding or stressful conditions, others that between-individual differences mostly present from birth relatively little affected by later environment. This dichotomy could arise...
Mercury (Hg) is a pollutant that does not only magnify along the food chain, but can also bioaccumulate in long-lived top-predators, such as many seabirds, and be transferred to next generation during reproduction. To better understand transfer of Hg from parents offspring, well its potential negative consequences, we used seven years data on total mercury (THg) levels blood common terns (Sterna hirundo) breeding at German North Sea coast, their eggs. We assessed whether (i) THg pair members...
Some species responded successfully to prehistoric changes in climate [1Robson K.M. Lamb C.T. Russello M.A. Low genetic diversity, restricted dispersal, and elevation-specific patterns of population decline American pikas an atypical environment.J. Mammal. 2015; 97: 464-472Crossref Scopus (15) Google Scholar, 2Kumar V. Kutschera V.E. Nilsson Janke A. Genetic signatures adaptation revealed from transcriptome sequencing Arctic red foxes.BMC Genomics. 16: 585Crossref PubMed (18) Scholar], while...
It is often proposed that females should select genetically dissimilar mates to maximize offspring genetic diversity and avoid inbreeding. Several recent studies have provided mixed evidence, however, in some instances seem prefer similar males. A preference for can be adaptive if outbreeding depression more harmful than inbreeding or gain inclusive fitness benefits by mating with close kin. Here, we investigated compatibility patterns an insular population of house sparrow (Passer...
In vertebrates, multiple host characteristics and environmental factors are known to influence infectious disease dynamics. Here, we investigated variability in prevalence parasitemia of Plasmodium relictum the house sparrow (Passer domesticus) across a large number rural urban populations (n = 16). We found that was not predicted by any traits (age, sex, body mass, or wing length). However, significantly higher females when compared males 1-yr-olds as older individuals. Neither nor differed...
Despite being identified an area that is poorly understood regarding the effects of climate change, behavioural responses to climatic variability are seldom explored. Climatic likely cause large inter-annual variation in frequency extra-pair litters produced, a widespread alternative mating tactic help prevent, correct or minimize negative consequences sub-optimal mate choice. In this study, we investigated how affects proportion wild population Alpine marmots. During 22 years monitoring,...
Selection is a central force underlying evolutionary change and can vary in strength direction, for example across time space. The fitness consequences of individual genetic diversity have often been investigated by testing multilocus heterozygosity-fitness correlations (HFCs), but few studies able to assess HFCs life stages both sexes. Here, we test using 26-year longitudinal individual-based data set from large population long-lived seabird (the common tern, Sterna hirundo), where 7,974...
Small and isolated populations usually exhibit low levels of genetic variability, thus, they are expected to have a lower capacity adapt changes in environmental conditions, such as exposure pathogens parasites. Comparing the variability selectively neutral versus functional loci allows one assess evolutionary history their future potential. The genes major histocompatibility complex (MHC) control immune recognition parasites, unusually high diversity is which likely driven by...
Abstract Haemoparasites represent a diverse group of vector-borne parasites that infect wide range vertebrate hosts. In birds, haemoparasite infection rates may be associated with various ecological and life history traits, including habitat choice, colony size migration distance. Here, we molecularly assessed the prevalence 3 main genera ( Plasmodium , Haemoproteus Leucocytozoon ) in 2 bird species different preferences migratory behaviour: black-headed gulls Chroicocephalus ridibundus...
Environmental salinization is recognized as a global threat affecting biodiversity, particularly in coastal ecosystems (affected by sea level rise and increased frequency severity of storms), the consequent osmoregulatory challenges can negatively affect wildlife. In order to assess whether species respond changes environmental salinity, it remains essential investigate consequences exposure salinity an environmentally-relevant context. this study, we assessed frogs ( Pelophylax sp., N =...
In the last decade, house sparrow populations have shown a general decline, especially in cities. Avian malaria has been recently suggested as one of potential causes this and its detrimental effects could be exacerbated urban habitats. It was initially thought that avian parasites would not large negative on wild birds because their long co-evolution with hosts. However, it is now well-documented they can at both primo- chronical infection stages. study, we examined physiological...
Abstract Inbreeding depression is predicted to increase with age, because natural selection less efficient at purging deleterious alleles that are only expressed later in life. However, empirical results scarce, and equivocal between studies. Here we performed controlled matings related unrelated individuals of domesticated Japanese quail ( Coturnix japonica ), monitored the performance their offspring for all fitness components over complete life course. We found rapid senescence adult...
Longitudinal studies of various vertebrate populations have demonstrated senescent declines in reproductive performance and survival probability to be almost ubiquitous. potential underlying proximate mechanisms, however, are still scarce. Due its critical function the maintenance health viability, immune system is among (mediators of) mechanisms that could underlie senescence. Here, we studied three innate parameters-haemagglutination titre, haemolysis titre haptoglobin concentration-in a...