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A bigger nose, a bigger bang: size matters for echolocating toothed whales

2018.11.16Whales, dolphins, and porpoises have all evolved to use similar narrow beams of high intensity sound to echolocate prey. Far from being inefficient, this highly focused sense may have helped them succeed as top predators in the world's oceans.

The wigeon (top from left to right), the shoveler, the pintail and the golden-eye. Images: Pixabay
Wing samples submitted by Danish hunters show a decrease in the number of young teal, shovelers, pintail, wigeon, tufted ducks and golden-eyes. Illustration: Fox & Christensen
The development in the annual share of females among adult ducks among wing samples sumitted by Danish hunters 1982-2017. Illustration: Fox & Christensen
The development in the annual share of juvenile females in wing samples submitted by Danish hunters in the period 1982-2017. Illustration: Fox & Christensen

Fewer females cause ripples in the duck pond

2018.11.01A new study from the Department of Bioscience shows a surprising decrease in the proportion of females among four common waterfowl. Researchers are concerned about the uneven gender balance and predict it could have consequences for the populations, if the trend continues.

News

The most recent figures from the Danish Beekeepers Association show that almost one in five Danish bee colonies died in the winter of 2017. Photo: Pixabay

New research project on bees puts the spotlight on insecticides

2018.10.31Worldwide, beekeepers report about increasing mortality among honey bees. A new European research project with participation from the Department of Bioscience, Aarhus University, will now investigate the effects of insecticides on bees to stop the deadly development.

[Translate to English:] This spring Karen La Cour Jørgensen, Oliver Hansen, Trine Henriksen and Lasse Jensen participated in the mentor scheme. Photo: Lea Laursen Pasgaard

Mentor scheme ensures new students a good start at Bioscience

2018.10.24The Department of Bioscience tested a mentor scheme the previous semester, where a team of older students guided students at the second semester about life as a biology student. The evaluations were very positive, and the arrangement is repeated in the spring. Here four students talk about what they got out of participating.

Mammals cannot evolve fast enough to escape current extinction crisis

2018.10.17We humans are exterminating animal and plant species so quickly that nature's built-in defence mechanism, evolution, cannot keep up. An Aarhus-led research team calculated that if current conservation efforts are not improved, so many mammal species will become extinct during the next five decades that nature will need 3-5 million years to recover.

Stakladen at Aarhus University was the setting for the BIO Match networking and career day. Photos: AU Photo/Melissa Yildirim
Associate Professor Hans Røy gave a presentation about his collaboration with Dong Energy Oil & Gas.
Both researchers and students participated in the networking and career day.
Researchers and representatives from the business community queued up to give a one-minute madness-presentation to the other participants.
After some inspiring presentations, the participants were able to network at the stands or over a bite of tapas.

Great interest in new networking and career day

2018.10.09Around 200 students, researchers and representatives from the business community met on Friday 28 September on the Department of Bioscience networking and career day, BIO Match. See the photos from the day here.

Assistant professor Tina Santl-Temkiv from the Department of Bioscience has been granted DKK 2 million under the VILLUM Experiment program. Photos: Sofia Riberio
Assistant professor Tina Santl-Temkiv.

Assistant professor Tina Santl-Temkiv receives funding from The VILLUM Experiment

2018.09.20The Villum Foundation is supporting bold technical and scientific research ideas for the second time. Assistant Professor Tina Santl-Temkiv from Department of Bioscience is one of this year’s recipients, receiving DKK 2 million for a project that will study the impact of sea-ice microorganisms on cloud processes in the Arctic.

The Department of Bioscience invites students, researchers and the industry to BIO Match 28 September in Stakladen. Photo: AU Foto/Jesper Rais
Businesses, organisations, authorities and researchers get the chance to present themselves at the one minute madness session. Here they get one minute and one slide to deliver their message to the audience. Photo: AU Foto/Jesper Rais

Networking day to increase dialogue and cooperation between businesses and AU biologists

2018.09.19The Department of Bioscience is heating up collaboration between businesses, research and students on the networking and career day ‘BIO Match’, Friday 28 September at Aarhus University.

For the first time, scientists are putting extinct mammals on the map

2018.08.09Researchers from Aarhus University and University of Gothenburg have produced the most comprehensive family tree and atlas of mammals to date, connecting all living and recently extinct mammal species – nearly 6,000 in total – and overturning many previous ideas about global patterns of biodiversity.

Oil rigs may end their days as valuable artificial reefs

2018.07.09A large group of international researchers have just published a scientific article in which they encourage environmental authorities across the globe to rethink the idea of removing oil rigs, wind turbines and other installations in the sea when they are worn out.

Senior researcher Carlos A. Arias from the Department of Bioscience at Aarhus University and the project consortium of INCOVER have been rewarded a 2018 Water Industry Award. Private photo

British Water Industry Ward to Bioscience-project

2018.07.02Senior researcher Carlos A. Arias and his international partners of wastewater-project INCOVER have been rewarded a British 2018 Water Industry Award.

Is the Greenland sled dog becoming extinct?

2018.06.08The Greenland sled dog is in danger of becoming extinct. The drastic decline in the population is caused by a decline in the need for hunters to use sled dogs, changes in climate and infectious diseases, and could lead to the extinction of this unique breed, which would substantially affect how the Greenland Inuit use their environment, and in turn could affect health and well-being. Read professor Christian Sonnes Letter in Science here: http://science.sciencemag.org/content/360/6393/1080.1.full

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Upcoming events

Fri 23 Nov
13:00-15:00 | Department of Bioscience, C.F. Møllers Allé 3, building 1131-127
Nervous control of blood pressure
Final examination for the Master's degree: Cathrine Overgaard, Zoophysiology
Mon 26 Nov
16:15-18:15 | The AIAS Auditorium, Building 1632, Høegh-Guldbergs Gade 6B, 8000 Aarhus C
Evolution of the Heart
AIAS Fellows' Seminar: Tobias Wang, , AIAS JCS Fellow
Tue 27 Nov
13:00-15:00 | AU Foulum, Viborg
Næringsstofudvaskning under økologiske slagtesvin på friland
Final Examination for the Master's Degree: Line Aagaard Lauridsen, Catchment Science and Environmental Management
Fri 30 Nov
13:15-15:15 | Department of Mathematics, Ny Munkegade 118, building 1531-119, aud. D2
Why some insects succumb to cold but others don’t
PhD defence Mads Kuhlmann Andersen, Zoophysiology
Thu 21 Mar
09:00-16:00 | Hotel Marselis, Aarhus
Electromicrobiology – from electrons to ecosystems
Conference: 21-22 March 2019
Mon 03 Jun
08:00-18:00 | Aarhus University, Denmark
Land Use and Water Quality 2019
The Conference on Land Use and Water Quality – LUWQ2019 – is held for the 4th time in Denmark, hosted by Aarhus University