LEHNA — 10 article(s) affiché(s) sur 839 disponibles

• 2026 (10)
  • Early Cretaceous termite (Insecta: Blattodea) coprolites in the southern French Alps
    Marc Philippe, Didier Bert, Jacques-Léopold Brochier, Myette Guiomar, André Nel

    After appearing at the end of the Jurassic period, termites diversified during the Early Cretaceous. This diversification had a major impact on the carbon cycle. Termite coprolites provide evidence of the ecology of these insects and how they fitted into food webs. An exceptional fossil is reported, a silicified driftwood piece containing coprolite…

  • Global change threatens the biodiversity of cold regions: current knowledge and priorities for further research
    David Renault, Luis Pertierra, Tom Vorstenbosch, Ella Z Daly, Jonas Lembrechts, Ross N. Cuthbert, Charly Géron, Phillip Joschka Haubrock, Mathieu Laparie, Peter Convey, Stefan Dullinger, Franz Essl, Michelle Greve, Torsten Nygaard Kristensen, Jan Pergl, Petr Pyšek, David M Richardson, James Speed, Michaela Vítková, Anne‐kristel Bittebiere

    Cold regions are among the most pristine areas remaining globally, hosting unique fauna and flora. Historically, these regions have often been refugia from land-use change, resource exploitation and pollution, but climate warming and biological invasions increasingly constitute profound threats. Focusing on terrestrial plant and invertebrate specie…

  • Functional response predicts invasiveness but not trophic impact
    Marine A Courtois, Chloé Souques, Yann Voituron, Loïc Teulier, Vincent Médoc, François‐xavier Dechaume‐moncharmont

    Biological invasions are a major driver of biodiversity erosion mainly because invasive species show greater trophic impact than their non-invasive counterparts. The experimental paradigm for assessing this trophic impact is the functional response (FR) test that describes the relationship between per capita consumption rate and resource density. T…

  • Street lighting design for wildlife: when should the lights go out?
    Samuel Challéat, Jean Secondi, Kévin Barré, Laurent Godet, Léa Mariton, Thierry Lengagne

    As the practice of turning off streetlights at night becomes more widespread in local authorities, threestudies focusing, respectively, on robins, toads and bats show that, often, turning off the lights for afew hours is not enough for restoring natural night. In terms of biodiversity, the challenge is not justabout switching off the lights, but kn…

  • Environmental factors affecting streambed microplastics in a non-perennial river catchment
    Nans Barthelemy, Florian Mermillod-Blondin, Maxime Logez, David Eme, Stefan Krause, Thibault Datry, Laurent Simon

    Microplastics (MPs) represent an important threat to rivers and exhibit complex patterns of accumulation and transport that depend mainly on environmental characteristics, among which hydrology plays a key role. However, the effects of flow intermittence on MP transport and accumulation remain unexplored. In this study, the normalized abundance by …

  • Global determinants of home range sizes in felids: Evidence of human disturbance impact
    Arthemis Moraru, Stefano Anile, Sébastien Devillard

    Home range (HR) is a key indicator of animal spatial ecology. HR size, shape, location and habitat composition reflect both species' ecological requirements and their responses to anthropogenic stressors. Felidae, a charismatic taxon, faces escalating threats mainly due to habitat degradation and human–wildlife conflict. Understanding the ecologica…

  • Rise and spread of lead-silver metallurgy deciphered from peatland archives
    Hugo Delile, André-Marie Dendievel, Laura Chollet, Iscia Codjo, Adrien Barra, Janne Blichert-Toft

    How mining has shaped long-term economic and political landscapes across Europe and the Mediterranean remains poorly understood, largely because archaeological evidence is spatially fragmented and ore sources are difficult to trace from atmospheric lead (Pb) records. Here, we compile Pb isotope data from environmental archives and introduce the Env…

  • Did the 2019 Notre-Dame Cathedral Fire impact the lead contamination of sediment in the Seine River in Paris, France?
    Olivier Evrard, Rémi Bizeul, Yangjunjie Xu-Yang, Sylvain Huon, Laurence Le Callonnec, Anthony Foucher, Sophie Ayrault

    The fire that affected Notre-Dame Cathedral in Paris in 2019 has reignited concerns about metal contamination including lead (Pb) in the city. The current research investigated the potential contribution of this event to the contamination of sediment transiting the Seine River. To this end, sediment deposits were collected in Paris just after flood…

  • Cytoplasmic male sterility and mitochondrial metabolism: evidence for low complex I contribution in male-sterile freshwater snail Physa acuta
    Sophie Bererd, Damien Roussel, Sandrine Plénet, Loïc Teulier, Antoine Stier, Emilien Luquet

    Cytoplasmic male sterility (CMS) is a well-known example of mitonuclear genetic conflict over sex determination in hermaphrodite plants, where mitochondrial genes maternally inherited sterilize the male function while biparental inherited nuclear genes restore it. CMS has been recently discovered in wild animals, in the freshwater snail Physa acuta…

  • Incubation strategy and hatching start time affect the duration of the nestling period in precocial Arctic-breeding sandpipers
    Thomas Pagnon, François-Xavier Dechaume-Moncharmont, Anders Angerbjörn, Joël Bêty, Julien Bouvet, Glen S Brown, Eric Buchel, Dorothee Ehrich, Léa Etchart, Ivan Fufachev, Jannik Hansen, Richard B Lanctot, Johannes Lang, Christopher J Latty, Nicolas Lecomte, Laura Mckinnon, Jérôme Moreau, Jeroen Reneerkens, Sarah T Saalfeld, Brigitte Sabard, Niels M Schmidt, Benoit Sittler, Paul A Smith, Aleksandr Sokolov, Vasiliy Sokolov, Natalia Sokolova, Rob S A van Bemmelen, Glenn Yannic, Loïc Bollache, Olivier Gilg