4 Works

Data from: Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution

Hanno Sandvik, Robert T. Barrett, Kjell Einar Erikstad, Mari S. Myksvoll, Frode Vikebø, Nigel Yoccoz, Tycho Anker-Nilssen, Svein-Håkon Lorentsen, Tone K. Reiertsen, Jofrid Skarðhamar, Mette Skern-Mauritzen & Geir Helge Systad
Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed the initial formation of colonies, and empirical tests are rare. Using a high-resolution larval drift model, we here document that the distribution of seabird colonies along the Norwegian coast can be explained by variations in the availability and predictability of fish larvae. The...

Data from: Cohort variation in individual body mass dissipates with age in large herbivores

Sandra Hamel, Jean-Michel Gaillard, Nigel G. Yoccoz, Steve Albon, Steeve D. Côté, Joseph M. Craine, Marco Festa-Bianchet, Mathieu Garel, Phyllis Lee, Cynthia Moss, Daniel H. Nussey, Fanie Pelletier, Audun Stien & Torkild Tveraa
Environmental conditions experienced during early growth and development markedly shape phenotypic traits. Consequently, individuals of the same cohort may show similar life-history tactics throughout life. Conditions experienced later in life, however, could fine-tune these initial differences, either increasing (cumulative effect) or decreasing (compensatory effect) the magnitude of cohort variation with increasing age. Our novel comparative analysis that quantifies cohort variation in individual body size trajectories shows that initial cohort variation dissipates throughout life, and that...

Data from: Experimental icing affects growth, mortality, and flowering in a high Arctic dwarf shrub

Jos M. Milner, Øystein Varpe, René Van Der Wal & Brage Bremset Hansen
Effects of climate change are predicted to be greatest at high latitudes, with more pronounced warming in winter than summer. Extreme mid-winter warm spells and heavy rain-on-snow events are already increasing in frequency in the Arctic, with implications for snow-pack and ground-ice formation. These may in turn affect key components of Arctic ecosystems. However, the fitness consequences of extreme winter weather events for tundra plants are not well understood, especially in the high Arctic. We...

Data from: Mind the wind: microclimate effects on incubation effort of an arctic seabird

Christoffer Høyvik Hilde, Christophe Pélabon, Loreleï Guéry, Geir Wing Gabrielsen & Sébastien Descamps
The energetic costs of reproduction in birds strongly depend on the climate experienced during incubation. Climate change and increasing frequency of extreme weather events may severely affect these costs, especially for species incubating in extreme environments. In this 3-year study, we used an experimental approach to investigate the effects of microclimate and nest shelter on the incubation effort of female common eiders (Somateria mollissima) in a wild Arctic population. We added artificial shelters to a...

Registration Year

  • 2016
    4

Resource Types

  • Dataset
    4

Affiliations

  • Fram Centre
    4
  • Norwegian University of Science and Technology
    3
  • Université de Sherbrooke
    1
  • The Arctic University of Norway
    1
  • University of Aberdeen
    1
  • University of Edinburgh
    1
  • University of Lyon System
    1
  • Office National de la Chasse et de la Faune Sauvage
    1
  • Norwegian Polar Institute
    1
  • University Centre in Svalbard
    1