3 Works

Data from: Breeding synchrony and predator specialization: a test of the predator swamping hypothesis in seabirds

Sébastien Descamps
Reproductive synchrony is a widespread phenomenon that is predicted to be adaptive for prey with specialist predators but not for those with generalist ones. I tested this prediction in three polar seabird species characterized by different levels of predator specialization. In the Antarctic petrel, for which the only predator was highly specialized, hatching dates were highly synchronous and chicks that hatched close to the mean hatching date had a higher survival. In black-legged kittiwakes and...

Data from: Extreme diversity in the songs of Spitsbergen’s bowhead whales

Kathleen M. Stafford, Christian Lydersen, Oystein Wiig & Kit M. Kovacs
Almost all mammals communicate using sound, but few species produce complex songs. Two baleen whales sing complex songs that change annually, though only the humpback whale (Megaptera novaeangliae) has received much research attention. This study focuses on the other baleen whale singer, the bowhead whale (Balaena mysticetus). Members of the Spitsbergen bowhead whale population produced 184 different song types over a 3-year period, based on duty-cycled recordings from a site in Fram Strait in the...

Data from: Transferability of biotic interactions: temporal consistency of arctic plant-rodent relationships is poor

Eeva M. Soininen, John-Andre Henden, Virve T. Ravolainen, Nigel G. Yoccoz, Kari Anne Brathen, Siw T. Killengreen & Rolf A. Ims
Variability in biotic interaction strength is an integral part of food web functioning. However, the consequences of the spatial and temporal variability of biotic interactions are poorly known, in particular for predicting species abundance and distribution. The amplitude of rodent population cycles (i.e. peak phase abundances) has been hypothesized to be determined by vegetation properties in tundra ecosystems. We assessed the spatial and temporal predictability of food and shelter plants effects on peak phase small...

Registration Year

  • 2018
    3

Resource Types

  • Dataset
    3

Affiliations

  • Norwegian Polar Institute
    3
  • University of Washington
    1
  • The Arctic University of Norway
    1
  • University of Oslo
    1