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How the house sparrow came to be
10. aug. 2018
How is it that the small, charismatic house sparrow has become so closely associated with us? CEES researchers have been trying to answer this question by sequencing the DNA of populations of sparrows from across Europe and the Middle East. New publication published in Proceedings of the Royal Society of London B.
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Ancient DNA reveals the extent of Norse Greenland’s trade in walrus ivory
8. aug. 2018
Analysis of DNA from up to 1100 year old walrus remains confirmes that walrus ivory was a driver for both the success and decline of the old Norse colony of Greenland.
Publikasjoner
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New publication: Breakdown of brain–body allometry and the encephalization of birds and mammals
14. aug. 2018 13:41
By Masahito Tsuboi*, Wouter van der Bijl, Bjørn Tore Kopperud*, Johannes Erritzøe, Kjetil L. Voje*, Alexander Kotrschal, Kara E. Yopak, Shaun P. Collin, Andrew N. Iwaniuk, and Niclas Kolm in Nature Ecology & Evolution
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New publication: Ecology of sleeping: the microbial and arthropod associates of chimpanzee beds
13. aug. 2018 14:29
By Megan S. Thoemmes, Fiona A. Stewart, R. Adriana Hernandez-Aguilar*, Matthew A. Bertone, David A. Baltzegar, Russell J. Borski, Naomi Cohen, Kaitlin P. Coyle, Alexander K. Piel and Robert R. Dunn in Royal Society Open Science
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New publication: Sperm head morphology is associated with sperm swimming speed: A comparative study of songbirds using electron microscopy
13. aug. 2018 10:14
By Hanna Nyborg Støstad §, Arild Johnsen §, Jan Terje Lifjeld § and Melissah Rowe §,* in Evolution
Sosiale medier
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Spawning migration in cod – a question of trade-offs
7. aug. 2018
The extensive spawning migration of Northeast Arctic cod was suggested to be counterbalanced by increased early-offspring survival, however we find in a study published in July in Marine Ecology Progress Series , that early offspring growth should be considered as another factor explaining this long-distance migration.
Titan.uio.no
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Handel med hvalross-elfenben holdt liv i den norrøne bosettingen på Grønland
13. aug. 2018 09:07
Den norrøne kolonien som ble grunnlagt på Grønland av Eirik Raude rundt år 985, varte i nesten 500 år. Norske og britiske forskere har nå analysert DNA funnet i hvalross-rester fra den tiden og påvist at handel med elfenben fra hvalrossens støttenner var en viktig årsak til at bosettingen var så livskraftig. -
Ancient DNA reveals the extent of Norse Greenland’s trade in walrus ivory
8. aug. 2018 09:06
Norwegian and British researchers have analysed DNA from up to 1100 year old walrus remains and confirmed that walrus ivory was a driver for both the success and decline of the old Norse colony of Greenland. They also revealed the shifting patterns of walrus ivory trade in medieval Europe and found traces of a major evolutionary split in the Atlantic walrus population. -
Insektmidler er bare én av mange trusler mot humlene
9. juli 2018 09:28
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Chimpanzee beds are cleaner than human beds
26. juni 2018 11:27
Researchers have suspected for a long time that the elaborate beds and nests where the great apes spend the night provide efficient protection against predators and bloodsuckers. “That is certainly true. But the big surprise is that chimpanzee beds are cleaner than most human beds”, says Adriana Hernandez-Aguilar from the CEES.
