4 Works

Data from: Low fitness at low latitudes: wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird

Jeroen Reneerkens, Tom S.L. Versluijs, Theunis Piersma, Jose Alves, Mark Boorman, Colin Corse, Olivier Gilg, Gunnar Hallgrimsson, Johannes Lang, Bob Loos, Yaa Ntiamoa-Baidu, Alfred Nuoh, Peter Potts, Job Ten Horn & Tamar Lok
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non-breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55° N and 25° S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West-Africa (Mauritania: 0.74 and...

Data from: Numbers and distribution of the Great Cormorant in Iceland: limitation at the regional and metapopulation level

Arnthor Gardarsson & Jon Einar Jonsson
We studied a metapopulation of great cormorant (Phalacrocorax carbo) in Iceland, using complete aerial censuses of nests in 25 years during 1975–2015. Age composition was estimated in 1998–2014 by ground surveys in September and February. Brood size was estimated from aerial photographs in 2007–2015. Weather, food, breeding habitat, and density were considered as explanatory variables when examining numerical and distributional changes in the cormorant metapopulation. In 1975–1990 total nest numbers changed little, very low numbers...

Data from: Gene expression in the phenotypically plastic Arctic charr (Salvelinus alpinus): a focus on growth and ossification at early stages of development

Samantha V. Beck, Katja Räsänen, Ehsan P. Ahi, Bjarni K. Kristjánsson, Skúli Skúlason, Zophonías O. Jónsson & Camille A. Leblanc
Gene expression during development shapes the phenotypes of individuals. Although embryonic gene expression can have lasting effects on developmental trajectories, few studies consider the role of maternal effects, such as egg size, on gene expression. Using qPCR, we characterize relative expression of 14 growth and/or skeletal promoting genes across embryonic development in Arctic charr (Salvelinus alpinus). We test to what extent their relative expression is correlated with egg size and size at early life‐stages within...

Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns

Anna Jöst, Moriaki Yasuhara, Chih-Lin Wei, Hisayo Okahashi, Alexandra Ostmann, Pedro Arbízu Martinez, Briony Mamo, Jörundur Svavarsson & Saskia Brix
Aim: The deep waters around Iceland, known as the North Atlantic Gateway, constitute an ideal location to investigate deep-sea ecological hypotheses. Using ostracods, we constructed a comprehensive deep-sea macroecological dataset of the North Atlantic Gateway region and investigated the controlling factors of large-scale, deep-sea species diversity patterns. Location: Sub-polar North Atlantic Ocean Time period: Modern Major taxa studied: Ostracoda (Crustacea) Methods: We investigated deep-sea biodiversity patterns and applied ecological modeling (multiple regression and model averaging)...

Registration Year

  • 2019

Resource Types

  • Dataset


  • University of Iceland
  • Hólar University College
  • University of Aveiro
  • Swiss Federal Institute of Aquatic Science and Technology
  • University of Groningen
  • University of Ghana
  • Université Bourgogne Franche-Comté
  • University of Hong Kong
  • University of Giessen
  • British Trust for Ornithology