Cut marks on the bones of bears show that people in North-West Europe used bearskins to keep warm 300,000 years ago.

Harvesting rice from the same field, without planting new rice plants? A discovery may bring this scenario closer. Leiden scientists have discovered a gene that allows annual plants to grow after flowering, instead of dying. Publication on 13 April in Nature Plants.

Leiden evolutionary biologist Maurijn van der Zee has co-operated on an enormous international project to describe the genetic material of the pea aphid Acyrthosiphon pisum. The more than 100 authors involved in the project have published their findings in the online magazine PLoS Biology.

If male budgerigars can successfully open a puzzle box with food, they become more attractive to females. Biologist Carel ten Cate and Chinese colleagues published experimental evidence for this in a paper in Science on 11 January. Various Dutch and international media wrote about the paper.

Merijn de Bakker and colleagues of the IBL-research group of Prof. Mike Richardson provide a unique view on digit evolution in crocodiles and birds in their recent study published in Nature.

The SNP genotyping line offers flexible genotyping for small and large projects at affordable price and high quality. The use as SNPs as molecular markers is very versatile and can be used for a wide variety of scientific questions ranging from paternity analysis, conservatuion genetis towards QTL…

Archaeologist Dr Gerrit Dusseldorp's research project was covered by a South African newspaper. Dusseldorp and his team investigate the evolution of human behaviour through artefacts dug up in South African caves.

In an unpredictable environment bacteria evolve the same strategy as shareholders who try to protect themselves against unpredictable swings in the stock market. Experimental evolution biologist Dr Bertus Beaumont published an article on this discovery on 5 November in the journal Nature.

PhD defence

We spoke with Mathilde Witkam about her research as a dual PhD candidate at the Dual PhD Centre. Her dissertation is about the effect of open government on public trust. Mathilde: ‘Trust in government ensures that people are more honest in their tax returns; less control saves time and money.’

Lecture, LACG Meetings

In Microbial Sciences, we perform multidisciplinary research to understand the structure and function of microbes at all levels of biological organization, from small molecules and cellular structures at atomic resolution to multicellular communities.

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

The research that is united in the Liveable Planet programme, touches upon a wide range of aspects of human life. The goal is to deepen and expand the scope and to connect more researchers. The following case studies are examples of current research projects.

A project to explore the configuration of different types of settlement and its role in the evolution of landscape, both in pre-Roman times and in the so-called Colonial landscape. We used several techniques of field survey, pottery classification and other non-invasive approaches to the archaeological…

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

We are very happy to welcome you to spend a semester or year studying or doing an internship with us at the Leiden University Medical Center. Here you will find information on your course timetables and registration.

β-Lactamases are enzymes that can break down β-lactam substrates, such as antibiotics, preventing the use of these antibiotics for the treatment of various infectious diseases. However, some compounds, β-lactamase inhibitors, can block these enzymes allowing for possible treatments using a combination…

Promotores: Prof.dr. J. Zaanen & Prof.dr. K.E. Schalm

Tracing the evolution of the molecular gas content in galaxies is critical for a complete understanding of galaxy formation and evolution, as it provides the direct fuel for star formation. Studies of high-redshift (z>1) molecular gas reservoirs, most commonly traced by carbon monoxide (CO), have seen…

Political scientist Matthew Longo (Leiden University) takes a detailed look at the evolution of border security in the United States after 9/11. Far from the walls and fences that dominate the news, he reveals borders to be thick, multi-faceted and binational institutions that have evolved greatly in…

Everything you need to know about the minor Ecology, Migration and Tolerance: Limits to Cooperation.

PhD defence

PhD defence

Lecture

PhD candidates are encouraged to start thinking about job prospects well before the defence of their thesis. Many PhD graduates find employment in an academic or semi-academic environment.

This project explores the religious lives of a Surinamese Hindu community practicing in Amsterdam at the Sri Radha Krishna Mandir from an interdisciplinary perspective.

The function of TLRs in innate immunity has aroused worldwide attention soon after its discovery. Because of the broad functions of TLR2 in innate immunity, the drive for the development of TLR2-targeted vaccines or therapeutic treatments has accelerated in the last decades.

‘Quantum technology is going to change the world, but most people don’t feel connected to it. I want to change that,’ says Julia Cramer, assistant professor at Leiden University. Known for her passion for science communication, Cramer actively seeks opportunities to share the wonders of quantum technology…

As the flagship journal of the National Academy of Sciences USA, PNAS publishes several special features each year highlighting topics that are expected to engage the interest of the journal’s broad readership. Archaeologist Wil Roebroeks was invited by the Editors of PNAS to contribute a paper on the…

If an algorithm has to learn to understand language, simply having a lot of data doesn’t help much. Like us, a computer has to learn the language in interaction with others. Tessa Verhoef is fascinated by how this interaction works.

The mission of the Plant Sciences cluster is to contribute to the sustainable production of high-quality crops, flowers and high-value bio-based products, and to contribute to the maintenance and restoration of biodiversity in natural ecosystems. This is realised by generating fundamental knowledge…

This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.

Nature is a never-ending source of inspiration for the researchers at the Institute of Biology Leiden (IBL). Based on a better fundamental understanding of nature, they are able to seek solutions in the area of health and biodiversity. The theme of IBL is ‘Harnessing biodiversity for health.’

Koper

These are the proposed research projects for LEAPS 2019. Please note that not all projects will go ahead and some may still be added in the near future. Final funding decisions lie with the Faculty sponsors. And please make a note that if you are interested in an ESA project, to check if your state…

Article by Leiden University political scientist Daniel Thomas about shifting norms for membership in international organisations.

Why did India develop a strong military partnership with the state of Irael, after having ignored it for 42 years? How could both countries develop defense ties in spite of limited political leadership involvement? Finally, what are the prospects for defense relations as India grows to become one of…

Structural variants (SVs) are the hidden architecture of the human genome, and are critical for us to understand diseases, evolution, and so on.

Historical evolution law

Two years ago, Amanda Henry joined the Faculty of Archaeology’s Archaeological Sciences department. She investigates diet and human evolution, with a specific focus on plant foods. ‘Most of the studies on the prehistoric diet focus on meat and hunting. This just didn’t make sense to me.’

Update : March 2020 A.J. Mills

Can thrips resistance in strawberry be explained based on secondary metabolite profiles and plant morphological traits?

The Institute of Biology Leiden (IBL) is an internationally oriented institute for research and education in biology.

In the research programme Microbial Sciences we perform state-of-the-art research in the field of biotechnology and microbial sciences.

The information below concerns courses that our group teaches in Leiden. 

Developing methodes to understand the evolution of patches in natural ecosystems

The mission of the Plant Science research programme is to contribute to the sustainable production of high quality crops, flowers and high-value bio-based products. This is realised by generating fundamental knowledge of basic biological processes related to development of plants and their interaction…