Browsing University Museum of Bergen by Author "Walker, Samuel James"
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Ancient DNA and osteological analyses of a unique paleo-archive reveal Early Holocene faunal expansion into the Scandinavian Arctic
Boilard, Aurélie; Walker, Samuel James; Lødøen, Trond; Henriksen, Mona; Takken-Beijersbergen, Liselotte M.; Star, Bastian; Robu, Marius; Tøssebo, Christine; Albrektsen, Cornelia Marie; Soleng, Yvonne; Aksnes, Sverre S; Jørgensen, Roger; Hufthammer, Anne Karin; Kolfschoten, Thijs van; Lauritzen, Stein Erik; Boessenkool, Sanne (Journal article; Peer reviewed, 2024)Paleo-archives are essential for our understanding of species responses to climate warming, yet such archives are extremely rare in the Arctic. Here, we combine morphological analyses and bulk-bone metabarcoding to investigate ... -
Birds in medieval Norway
Walker, Samuel James; Hufthammer, Anne Karin; Meijer, Hanneke (Peer reviewed; Journal article, 2019)Whilst modern avian distributions in Scandinavia are well studied, how past events and processes have shaped modern bird communities in the region remains poorly known. This is mainly due to the fact that work on post-glacial ... -
A long-term study of size variation in Northern Goshawk Accipiter gentilis across Scandinavia, with a focus on Norway
Walker, Samuel James; Lislevand, Terje; Meijer, Hanneke Johanna Maria (Journal article; Peer reviewed, 2023)Changing climate and growing human impacts are resulting in globally rising temperatures and the widespread loss of habitats. How species will adapt to these changes is not well understood. The Northern Goshawk (Accipiter ... -
Size variation in mid-Holocene North Atlantic Puffins indicates a dynamic response to climate change
Walker, Samuel James; Meijer, Hanneke (Journal article; Peer reviewed, 2021-02-24)Seabirds are one of the most at-risk groups, with many species in decline. In Scandinavia, seabirds are at a heightened risk of extinction due to accelerated global warming. Norway is home to significant portion of the ... -
Why did the chicken cross the Wallace Line? Archaeological evidence suggests human-mediated dispersal of Gallus to Flores first occurred at least ~2.25 ka cal. BP
Meijer, Hanneke Johanna Maria; Walker, Samuel James; Sutikna, Thomas; Saptomo, E. Wahyu; Tocheri, Matthew W. (Journal article; Peer reviewed, 2022)Domesticated chickens (Gallus gallus domesticus) are a dominant part of the global human diet. Although the early domestication history of this species remains disputed, Mainland Southeast Asia (MSEA) is assumed to have ...