Blar i forfatter "Delestrade, Anne"

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    • Best environmental predictors of breeding phenology differ with elevation in a common woodland bird species 

      Bison, Marjorie; Yoccoz, Nigel; Carlson, Bradley; Klein, Geoffrey; Laigle, Idaline; Van Reeth, Colin; Asse, Daphné; Delestrade, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-17)
      Temperatures in mountain areas are increasing at a higher rate than the Northern Hemisphere land average, but how fauna may respond, in particular in terms of phenology, remains poorly understood. The aim of this study was to assess how elevation could modify the relationships between climate variability (air temperature and snow melt‐out date), the timing of plant phenology and egg‐laying date of ...

    • Comparison of budburst phenology trends and precision among participants in a citizen science program 

      Bison, M; Yoccoz, Nigel Gilles; Carlson, BZ; Delestrade, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-01)
      Quantifying shifts in plant phenology in response to climate change represents an ongoing challenge, particularly in mountain ecosystems. Because climate change and phenological responses vary in space and time, we need long-term observations collected at a broad spatial scale. While data collection by volunteers is a promising approach to achieve this goal, one major concern with citizen science ...

    • Earlier Snowmelt Advances Breeding Phenology of the Common Frog (Rana temporaria) but Increases the Risk of Frost Exposure and Wetland Drying 

      Bison, Marjorie; Yoccoz, Nigel; Carlson, BZ; Klein, Geoffrey; Laigle, Idaline; Van Reeth, Colin; Delestrade, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-03)
      The alarming decline of amphibians around the world calls for complementary studies to better understand their responses to climate change. In mountain environments, water resources linked to snowmelt play a major role in allowing amphibians to complete tadpole metamorphosis. As snow cover duration has significantly decreased since the 1970s, amphibian populations could be strongly impacted by climate ...

    • Impact of climatic change on alpine ecosystems: inference and prediction 

      Yoccoz, Nigel; Delestrade, Anne; Loison, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-01-26)
      Alpine ecosystems will be greatly impacted by climatic change, but other factors, such as land use and invasive species, are likely to play an important role too. Climate can influence ecosystems at several levels. We describe some of them, stressing methodological approaches and available data. Climate can modify species phenology, such as flowering date of plants and hatching date in insects. It ...

    • In-situ Temperature Stations Elucidate Species’ Phenological Responses to Climate in the Alps, but Meteorological and Snow Reanalysis Facilitates Broad Scale and Long-Term Studies 

      Laigle, Idaline; Carlson, Bradley Z.; Delestrade, Anne; Bison, Marjorie; Van Reeth, Colin; Yoccoz, Nigel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-22)
      Linking climate variability and change to the phenological response of species is particularly challenging in the context of mountainous terrain. In these environments, elevation and topography lead to a diversity of bioclimatic conditions at fine scales affecting species distribution and phenology. In order to quantify in situ climate conditions for mountain plants, the CREA (Research Center ...

    • Phenological and elevational shifts of plants, animals and fungi under climate change in the European Alps 

      Vitasse, Yann; Ursenbacher, Sylvain; Klein, Geoffrey; Bohnenstengel, Thierry; Chittaro, Yannick; Delestrade, Anne; Monnerat, Christian; Rebetez, Martine; Rixen, Christian; Strebel, Nicolas; Schmidt, Benedikt R.; Wipf, Sonja; Wohlgemuth, Thomas; Yoccoz, Nigel; Lenoir, Jonathan (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-27)
      Mountain areas are biodiversity hotspots and provide a multitude of ecosystem services of irreplaceable socio-economic value. In the European Alps, air temperature has increased at a rate of about 0.36°C decade<sup>−1</sup> since 1970, leading to glacier retreat and significant snowpack reduction. Due to these rapid environmental changes, this mountainous region is undergoing marked changes in spring ...

    • 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 ...

    • Webcams as a Remote Tool for Eco-ethological Research: A Study on the Alpine Chough 

      Vallino, Cristina; Yoccoz, Nigel; Rolando, Antonio; Delestrade, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-02)
      Methods and devices specifically created for remote animal surveys and monitoring are becoming increasingly popular and effective. However, remote devices are also widely used in our societies for different, not scientific, goals. Ski resorts in the European Alps, for instance, use webcams to share panoramic views and promote themselves in the industry of winter recreational activities. We tested ...