PhD defence

Bird, butterfly, fish: when you look through a children’s book, you usually don’t think about the fact that humans divided these animals, depicted in bright colours, into categories. Yet, this division has been discussed for centuries. In her PhD dissertation, Didi van Trijp shows how natural scientists…

With his photo of a fish trapped in a rubber glove, external PhD candidate Auke-Florian Hiemstra has made it to the shortlist for the People’s Choice Award in the prestigious Wildlife Photographer of the Year competition. The photo shows the impact of Covid litter on wildlife.

Lecture, also on line with Zoom

Conference

PhD defence

PhD defence

Organisation

Environmental Humanities LU Talk

End of Year Event

Lecture, Global Histories of Knowledge Seminar

Lecture and excursion

The Houthis are attacking ships in the Red Sea. Rerouting via South Africa is expensive, whereas the Arctic route only takes a week. Once a no-go zone, this route might be a more realistic option. Mind the nuclear submarines, though…

The Party Catering Administration Office has special catering packages for the Faculty Club, and an overview is presented below.

On 31 January 2020, the United Kingdom officially left the European Union. New regulations, agreed upon by both parties took effect on 1 January 2021. What impact did Brexit have politically? Do British and European citizens now have different opinions of one another? And why did the Brits want to leave…

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

She narrowly defied bureaucracy and spent days angling for cod. In the North Sea, marine biologist Inge van der Knaap discovered that noise significantly disturbs fish behaviour. ‘There is now a lot of attention for underwater noise.’

Underwater noise from seismic surveys affects the behaviour of Atlantic cod. These are the results of research by Leiden biologists in collaboration with colleagues from Belgium. During such surveys the fish are less active than usual and their circadian rhythm is disrupted; soon after exposure they…

Fish populations in lakes and rivers have declined in recent decades. This is probably due to light and noise pollution. The Horizon Europe grant enables ecologist Hans Slabbekoorn to investigate this and improve the situation for migrating fish. In order to do so, a seven-metre-long swimming tunnel…

Is polder rice a feasible circular alternative to cows on peat soil? In May, an experimental trial began, with researchers from Leiden University and Wageningen University & Research (WUR) planting around 3,000 rice plants at the Polderlab near Leiden. The researchers aimed to test rice as a middle…

For thirty years, the Dutch Newspaper AD conducted an annual search for the best herring. This came to an end when economist Ben Vollaard, based on a statistical analysis, claimed it was rigged. But that claim doesn't smell right, says Leiden statistician Richard Gill. ‘The way you code and process…

Acute stress seems to have a surprisingly positive effect on our health. Researcher Erin Faught received an NWO veni grant to find out why that is and how we can use that knowledge to our advantage. For her lab research, she uses a remarkable small animal to learn more about our own stress levels.

The Special Issue, edited by Jorrit Rijpma, Melanie Fink, Kristof Gombeer, and Anna Petrig, contains a selection of contributions from the Conference organised by the Europa Institute on the topic of the EU and Maritime Security in October 2018.

She has had the idea for seven years, but now environmental scientist and conservation biologist Kat Stewart finally gets to work on it. She has been awarded a Vidi grant by NWO to find out how DNA from water can be used to shed light on invasive species and their impact on native populations.

Nanomaterials can pass much further along the food chain than was previously thought. The particles can change shape and size in each organism, enabling them to pass on to the next one in the chain. Researchers from the Institute of Environmental Sciences discovered this accidentally when using a novel…

Women confined to the kitchen? Not in Scheveningen around 1900. There, some women ran entire shipping companies. This is according to new research by history student Sjors Stuurman. He compiled the results in a book he wrote for Muzee Scheveningen.

The story of Tutankhamun, the Egyptian pharaoh, is world famous. But did you know that the Ancient Egyptians mummified not only people but animals too? The National Museum of Antiquities in Leiden recently put a bunch of animal mummies through a CT scanner. This was in collaboration with Canon Netherlands…

Education

What we buy and consume in Europe often has an impact on biodiversity somewhere else in the world. With a Horizon Europe Funding of 600.000 euros, assistant professor Laura Scherer and her team will develop models to look at the impact of global trade in non-food biomass. ‘After developing the models,…

A sense of security plays an important role in the decision to contribute to nature conservation. Stacey Mac Donald conducted four years of research on the influence of social and political changes and the (post) colonial context on nature conservation in the Dutch Caribbean. On 17 May she will defend…

With a single sample of water or soil, researches can analyse the DNA of everything that is living in that environment. During her research, PhD candidate Beilun Zhao discovered a way to analyse not only the kind of species, but also the age of the species in a water sample. The method showed its first…

The journal Philosophical Transactions of the Royal Society – Biological Sciences published its theme issue ‘Conflict across taxa’ on 4 April, which was edited by Professor of Social and Organisational Psychology Carsten de Dreu. Together with researchers from other disciplines he provides more insight…

On January 1st Jasper Knoester started as our new dean. How is he doing? What exactly does he do? And what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

Hans Slabbekoorn is specialised in animal sounds. On 1 July, he was appointed professor of Acoustic ecology and behaviour. A great honour, according to the new professor. ‘This job never gets boring, whether I am investigating the urban jungle or marine noise.’

Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.

It has been just over a decade since the first students graduated with Leiden University’s unique Liberal Arts and Sciences Bachelor degree. We caught up with one of those pioneering graduates.

In the Dutch tv-programme 'NOS Amalia and the Dutch Caribbean' Stacey shows the impact of climate change on the coast, coral and culture.

From 22 to 24 October, researchers of the MARBLES-project informed museum visitors about microbes: bacteria and fungi that live all around us. The event was organised around the Micro-day of Leiden, which is this year’s EU City of Science.

Colleagues from the Faculty of Social and Behavioural Sciences work on a variety of topics that contribute to a healthy society. Erik Bähre, Tessa Minter and Natashe Lemos Dekker presented their work during the Healthy Society Event on 9 June 2022.

How can we cooperate better as a Faculty? Both with each other and with the outside world. Around 70 students and staff discussed this during the latest strategy session in Corpus. Keynote Harry van Dorenmalen, former president of IBM Europe: 'You know best what this Faculty stands for and what it n…

What is the environmental impact of the fish on our plates? And is an electric car really more sustainable when we include the generation of electricity? Jeroen Guinée maps the environmental impact of products and technologies. He analyses them from raw material to waste disposal. He was appointed Professor…

Exploring logging's real impact: Insights from Anthropologist Tessa Minter in the Solomon Islands.