Blar i forfatter "Chiffard, Jules"

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    • Adaptive niche-based sampling to improve ability to find rare and elusive species: Simulations and field tests 

      Chiffard, Jules; Marciau, Coline; Yoccoz, Nigel; Mouillot, Florent; Duchateau, Stéphane; Nadeau, Iris; Fontanilles, Philippe; Besnard, Aurélien (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-27)
      <ol> <li>Sampling efficiency is crucial to overcome the data crisis in biodiversity and to understand what drives the distribution of rare species.</li <li>Adaptive niche‐based sampling (ANBS) is an iterative sampling strategy that relies on the predictions of species distribution models (SDMs). By predicting highly suitable areas to guide prospection, ANBS could improve the efficiency of sampling ...

    • Grazing intensity drives a trophic shift in the diet of common alpine birds 

      Chiffard, Jules; Bentaleb, Ilham; Yoccoz, Nigel; Fourel, François; Blanquet, Elodie; Besnard, Aurélien (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-18)
      Large mammalian herbivores (LMH) shape vertebrate communities and structure food webs in many terrestrial ecosystems. However, the mechanisms that underlie the effects of LMH on other vertebrates are poorly understood. In France, domestic LMH have grazed alpine and mountain grasslands for thousands of years, profoundly influencing landscapes and wildlife. As LMH modify habitat structure, favour ...

    • Warm temperatures during cold season can negatively affect adult survival in an alpine bird 

      Chiffard, Jules; Delestrade, Anne; Yoccoz, Nigel Gilles; Loison, Anne; Besnard, Aurelien (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-25)
      Climate seasonality is a predominant constraint on the lifecycles of species in alpine and polar biomes. Assessing the response of these species to climate change thus requires taking into account seasonal constraints on populations. However, interactions between seasonality, weather fluctuations, and population parameters remain poorly explored as they require long‐term studies with high sampling ...