Nyheder

Pressemeddelelse: Medie-fejl om forskerfyring

06.06.2016I de seneste dage har en række medier viderebragt fejlagtige oplysninger om, at en forsker ved Aarhus Universitet skulle være blevet afskediget. Dette er ikke korrekt.

Ulveovervågningen i Danmark – ny organisation og initiativer

03.06.2016DCE - National Center for Miljø og Energi, Aarhus Universitet og Naturhistorisk Museum (NHMA) overvåger ulvebestanden i Danmark og sørger for DNA-kontrol af spytprøver fra rovdyr, der har dræbt husdyr, for Ministeriet for Miljø og Fødevarer.

Færre gæs med hagl i kroppen

31.05.2016Antallet af kortnæbbede gæs med hagl i kroppen i Norge og Danmark er faldet siden 1990’erne, viser ny undersøgelse. Nyt notat fra DCE peger på, at det skyldes bedre jagtvaner.

Gammel guldmine sviner mindre

31.05.2016Den lukkede guldmine i Nalunaq i Grønland ser ikke ud til at forurene miljøet yderligere, viser ny rapport.

Marsvin er konstant på jagt

31.05.2016Marsvinet hører til blandt havets mest effektive rovdyr, viser et nyt studie.

Aarhus Universitet til Folkemødet på Bornholm

31.05.2016Forskningsskibet Aurora danner igen i år rammen om Aarhus Universitets deltagelse i Folkemødet på Bornholm. Mød blandt andet den amerikanske ambassadør Rufus Gifford, eller uddannelses- og forskningsminister Ulla Tørnæs (V), når AU er vært for en række debatter om uddannelse og forskning.

Photo credit Fjord og Bælt Centeret, Kerteminde

New study shows that extreme hunting by porpoises makes them vulnerable to disturbance

30.05.2016In a new Current Biology paper, post doc Danuta Wisniewska shows that one of the smallest and most widely distributed marine mammals, the harbour porpoise, lives on an energetic knife-edge. Scientists have long puzzled over how these 1.5 m / 50kg echolocating predators can eat enough to survive in cold waters which are normally the domain of large whales that can keep warm more efficiently. Tagging studies suggested that porpoises ate infrequently but this didn't match up with the small fish found in the stomachs of stranded animals. In the new study, miniature computers were attached to porpoises using suction cups to record both their echolocation sounds and the echoes coming back from prey. By analysing the echoes, Danuta Wisniewska, Professor Peter T. Madsen and senior scientist Jonas Teilman from Bioscience were able to measure how often porpoises tried to catch fish, as well as the size of the fish, and whether the fish escaped. The study shows that porpoises hunt small (< 5 cm) fish continuously day and night capturing as many as 3000 per day. A success rate of over 90% means that porpoises are amongst the most successful known hunters. The study also involved colleagues from SDU, Scotland and Germany and was funded by the German Federal Agency for Nature Conservation to understand how increasing development of the seas around northern Europe may be impacting porpoises. Harbour porpoises share these seas with dense ship traffic, fisheries, oil production and a growing array of wind and tide turbines. Although the tiny fish targeted by porpoises are not of interest in commercial fisheries, porpoises are frequently by-caught in fishing gear and this is a major threat to some populations. However, recent studies have also shown that porpoises may be affected by noise from boats, underwater construction and oil exploration.

New grant from the Carlsberg foundation ensures registration of Thailand’s flora

24.05.2016Since the establishment of the Botanical Institute at Aarhus University (now metamorphosed into Ecoinformatics and Biodiversity of Bioscience) in 1963, the exploration of the Thai flora has been a very important component of the research agenda. Aarhus University has played a key factor in the Flora of Thailand project, which is a long term project describing all of the amazing number of 11.000 vascular plants in Thailand. The Flora of Thailand project is just over half finished and a with new donation of 15 mill DKK from the Carlsberg foundation is it now possible to continue fieldwork, training and exchange of researchers between Thailand and Aarhus University, and to publish the remaining parts of the Flora of Thailand. The project is organized by the Royal Forest Herbarium of the Thai National Park Services, and involves a large number of taxonomists in various Thai and international universities and research institutions, especially the Royal Botanic Gardens, Kew, England, Edinburgh Botanical garden, Scotland, Trinity College, Dublin, Ireland, the National museum of France in Paris, Munich University, and Copenhagen University. During the project, many Thai students and botanists have trained at Aarhus University and this will continue thanks to the new economical donation. For more information contact: Professor Henrik Balslev R., PhD, Dr. h.c. : henrik.balslev@bios.au.dk

Oase i Arktis gør forskerne klogere på forholdet mellem mennesker og fangstdyr

12.05.2016NOW-projektet skal afdække forandringer i regionen Læs artiklen på Videnskab.dk

Udforsk grønlandske forskningsstationer på Google Maps

12.05.2016Læs artiklen på Videnskab.dk

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