Taxonomy as a science has accumulated data and knowledge for more than 250 years.

The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Promotor: Prof.dr. E.F. Smets, Co-promotor: Dr. V.S.F.T. Merckx

To explore the potential of marine microorganisms as producers of novel antimicrobial agents and as bioprotectants in aqua- and agriculture, using an integrative, ecology-based strategy for bioprospecting.

We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…

How did digital intermediality symbolise and facilitate the transfer of content from popular culture into policy statements and vice versa in the period between 1945 and the new millenium?

Which metabolites of sponge are influenced by individual environmental or biological factors?

How does invasive hybridization affect threatened native species?

On December 16th 23 students of the Institute of Environmental Sciences of Leiden University took part of the first total species inventory to assess the effectiveness of an underwater landscape that was build in March 2003 to restore the biodiversity in an area where the environment was destroyed by…

What is the function of the insect serosa?

Can birds - like people- ‘see’ voices and learn how to sing by listening and watching?

Where did species survive the cold cycles of the current Ice Age?

The Leiden municipality wants to make the city centre climate-proof and combat heat stress by greening it. But they want to do this in a way that does justice to the city’s heritage. Researcher Fenna IJtsma delves into historical greenery to offer inspiration.

How do humans, non-humans and their interactions and relations shape the home as ecological and social space?

1. What is the exact role of PIN proteins in PAT? 2. How is PIN polarity established, and how is it modulated by AGC kinase-mediated phosphorylation? 3. What is the role of the AGC kinase, as modulators of PAT, in translating environmental signals, such as gravity, light or mechanical stress, to plant…

Gilles van Wezel of the Institute of Biology Leiden will lead a European consortium to search for new medicines and disease-suppressive microbes while preserving biodiversity. The consortium will explore the largely unknown potential of marine microorganisms.

A banker who puts making money second and makes a profit nonetheless. A farmer who stops ploughing and using insecticides but still has a good harvest. A new white paper by Leiden-Delft-Erasmus and Naturalis Biodiversity Center shows how the meeting of disciplines provides solutions to climate change…

Promotor: Prof.dr. P.G.L Klinkhamer

A study by an international group of scientists headed by Prof. Michael Richardson showed that asymmetry in the snake lungs manifests itself early in development.

Two Leiden research projects that focus on increasing the biodiversity of Dutch production systems for food and ornamental horticulture have started thanks to funding from the Dutch Research Council's KIC research programme.

Through various initiatives, Leiden University is trying to make people aware of the importance of biodiversity: the cultivation of a wide variety of micro-organisms, animals and plant species. This is important because in the Netherlands biodiversity has declined from about 40 percent in 1900 to about…

Inaugural address of Prof.dr.ir. Peter van Bodegom

Ben Wielstra studies hybrid zones, regions in which distinct populations of organisms meet, mate and produce genetically admixed offspring. In the journal Current Biology, he introduces hybrid zones in an accessible way.

Which genes are involved in woodiness and associated traits such as drought tolerance, flowering time, stem elongation, life span, and plant herbivory, and how do these gene regulatory pathways overlap?

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, Dr. B.W. Hoeksema

The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…

Ben Wielstra studies balanced lethal systems, in which half of the offspring die before birth. In the journal Current Biology, he explains in an accessible way how such a disadvantage can originate in nature.

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…

They are often little more than a square metre of plants, yet pavement gardens are a source of life. PhD candidate Joeri Morpurgo conducted research in the centre of Amsterdam and The Hague and discovered how important small green spaces are, especially for cities.

The logic seems inescapable indeed. The bigger the population, the higher the probability it contains an Einstein. Hence, bigger populations are more likely to develop complex culture.

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh

Lecture

Ben Wielstra and his team have received a ENW-M-1 grant. This grant of 354.000 euros is awarded by NWO, and will enable the researchers of the Institute of Biology Leiden and Naturalis to continue their evolutionary newt research.

Tapping to a rhythm, recognizing sound patterns and enjoying music: For people, it is common sense. But is this also the case for animals? It is the research topic of Michelle Spierings, a researcher at the Institute of Biology Leiden, and it is nominated for the Klokhuis Wetenschapsprijs.

I think we should go this way. This way! THIS! WAY!! Making yourself heard in a city can be difficult. That is not only the case for humans, but birds seem to be hindered by urban noise as well. Researcher Hans Slabbekoorn of Leiden University already showed that great tits in Leiden communicate differently…

We are developing the conceptual framework, which is new to this taxonomic group, and evaluate the current state of the art with respect to all critical parameters and transfer functions for a fully developed Population Consequences of Acoustic Disturbance (PCAD) model.

A new analysis of the king cobra genome by Michael Richardson, Christian Henkel (IBL) and collaborators at the IBL and Naturalis, Helsinki and Singapore has been published in

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

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

It came as a shock to many people: one million plant and animal species are threatened to become extinct. But this number isn’t the most relevant aspect, argue Alexander van Oudenhoven, Koos Biesmeijer and three other experts in Dutch newspaper Trouw. ‘It is more important to realise that the fate of…

Like ants, termites and bees, some bacteria work together as a multicellular group. There is a strict division of labour in such colonies, to make the group more resilient to the outside world. Now researchers have found that some parts of the bacterial colony can take ‘for the greater good’ to a whole…

For nine years he worked on the three-volume standard work Plant Galls of Europe. It yielded 2300 pages about 10,000 species of European galls, abnormal outgrowths in plants caused by parasites. Hans Roskam from the Institute of Biology Leiden: ‘The abundance of galls says something about the natural…