Blar i Brage IMR på forfatter "Barrett, Robert T."

Viser treff 1-3 av 3

    • Climate-Driven Ichthyoplankton Drift Model Predicts Growth of Top Predator Young 

      Myksvoll, Mari Skuggedal; Erikstad, Kjell E.; Barrett, Robert T.; Sandvik, Hanno; Vikebø, Frode (Journal article; Peer reviewed, 2013-11-12)
      Climate variability influences seabird population dynamics in several ways including access to prey near colonies during the critical chick-rearing period. This study addresses breeding success in a Barents Sea colony of ...

    • Seabird−fish interactions: the fall and rise of a common guillemot Uria aalge population 

      Erikstad, Kjell E.; Reiertsen, Tone Kristin; Barrett, Robert T.; Vikebø, Frode; Sandvik, Hanno (Journal article; Peer reviewed, 2013-02-14)
      A major challenge in population ecology is the prediction of population responses to environmental variance. Food availability has long been hypothesized to play a major role in regulating seabird populations. In general, ...

    • The stress hormone corticosterone in a marine top predatorreflects short-term changes in food availability 

      Barrett, Robert T.; Erikstad, Kjell E.; Sandvik, Hanno; Myksvoll, Mari Skuggedal; Jenni-Eiermann, Susi; Kristensen, Ditte Lyngbo; Moum, Truls; Reiertsen, Tone; Vikebø, Frode Bendiksen (Journal article; Peer reviewed, 2015-02-26)
      In many seabird studies, single annual proxies of prey abundance have been used to explain variability in breeding performance, but much more important is probably the timing of prey availability relative to the breeding ...