1,019 search results for “evolution” in the Public website
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Frederic Lens: building bridges in biodiversity research
Four green research institutes in Leiden are joining forces to integrate evolution and biodiversity research, at local and at the national level. Pivot in this collaboration is Frederic Lens.
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When does resistance to toxins evolve in animals? Students publish major review
Does a snake die when it bites its lip? Why will a mongoose survive a scorpion’s sting, but we humans perish? These questions occupied the minds of toxin-enthusiasts and Master’s students Biology Jory van Thiel and Roel Wouters. They collected information from many sources and published their findings…
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Tropical bananaquits lose song quality in the city
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…
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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Netherlands (WIIS-NL) Inaugural Event: 1325 twenty years on – the evolution of the WPS agenda after 9/11
On Thursday 11 November, Women in International Security Netherlands (WIIS-NL) held its inaugural webinar event on 11 November with four speakers in conjunction with the International Centre for Terrorism (ICCT) and the Chair UN Studies in Peace and Justice at Leiden University.
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Collaborating bacteria sacrifice themselves for the greater good
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…
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Ten thousand types of plant outgrowths bundled
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…
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Noise pollution affects marine life worldwide
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…
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Female budgerigars like smart males
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 .
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Deconstructing stability. Modelling changing environmental conditions and man-land relations in the Pleistocene landscape of Twente (2850 - 12
The project Deconstructing Stability aims to improve reconstructions of late prehistoric landscapes and predictive models for the purpose of archaeological heritage management.
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Hybrid zones: a quick guide by Ben Wielstra
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.
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Neutral outflows in high-redshift dusty galaxies
Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…
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Plant ageing, rejuvenation and life history strategy
What are key regulators of plant ageing that can reverse ageing in plants (rejuvenation), and how can we use this knowledge to improve crop plants?
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Veni-grant for Michelle Spierings: ‘Do birds hear tick-tock too, or tock-tick?’
‘I did not expect to receive the grant, but it will make an amazing research possible,’ Michelle Spierings says. The researcher of the Institute of Biology Leiden (IBL) got awarded a Veni-grant of the Dutch Research Council (NWO).
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Supergenes make bizarre traits possible
Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…
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Balanced lethal systems: a quick guide by Ben Wielstra
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.
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NWO grant of 350.000 for Wielstra lab
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.
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A radio view of dust-obscured star formation
Within the field of astronomy, understanding how galaxies grow and evolve from the Big Bang to the present day is a challenging and complex question.
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The distribution of stellar mass in galaxy clusters over cosmic time
Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: Dr. H.Hoekstra
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The serosa: an evolutionary novelty in insect eggs
What is the function of the insect serosa?
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‘Seeing voices’: the role of multimodal cues in vocal learning
Can birds - like people- ‘see’ voices and learn how to sing by listening and watching?
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Iron complexes as electrocatalysts for the water oxidation reaction
In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.
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Weathering the Ice Age
Where did species survive the cold cycles of the current Ice Age?
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Fundamental research on the voltammetry of polycrystalline gold
Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.
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Hierarchical Systems
The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.
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Dynamics of the Oort Cloud and Formation of Interstellar Comets Santiago Torres Rodriguez
The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.
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From midplane to planets : the chemical fingerprint of a disk
This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.
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Hans Slabbekoorn receives NWA grant to study fish around wind farms in the North Sea
The Dutch Research Council (NWO) awarded behavioural biologist Hans Slabbekoorn (Institute of Biology Leiden) a grant of 750,000 euros to study fish and sounds around wind farms in the North Sea.
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The interplay between stars, gas and dust in faint star-forming galaxies
When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.
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The complicated conservation problem of genetic pollution
How does invasive hybridization affect threatened native species?
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Animal Sciences
We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.
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Substrate adaptability of β-lactamase
The research aims to explore the evolutionary adaptability of enzymes and the impact of temperature on protein evolution pathways, using M. tuberculosis β-lactamase BlaC as the object of study. Enzymes inherently embody a delicate balance between activity and stability, and the acquisition of new enzymatic…
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The Great Collapse
Promotor: Prof.dr. S.F. Portegies Zwart
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Unravelling the genes responsible for life history traits in the giant woody cabbage (Brassica oleracea)
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?
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Even a duck can parrot
That a parrot can copycat sounds is nothing new. But vocal learning is not common in animals. Researcher Carel ten Cate of the Institute of Biology Leiden (IBL) of Leiden University has now discovered a duck species that can imitate sounds. ‘It started with an obscure reference about an Australian musk…
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Is it possible to avoid dehydration? Gene promotes wood formation
‘It was a discovery we did not expect,’ says Remko Offringa, professor of Plant developmental genetics. Today he publishes a new trait of a versatile gene in Current Biology: it makes the difference in plants between herbaceous and woody stem growth. A useful feature to prevent dehydration.
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Michelle Spierings aims for Klokhuis Wetenschapsprijs with musicality animals
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.
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Student hauls in NWO grant for research into 'rejuvenating gene'
Master's student Thalia Luden receives an NWO grant for her research proposal about a gene that brings flowering plants back into a growth phase. Companies in floriculture and vegetable seed breeding also contribute to the research.
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MIGRADROME: new study on the impact of vessel sound pollution on fish behaviour
Fishes rely heavily on sound to find their way during migration or dispersal. Many species are affected by noise pollution. Hans Slabbekoorn from the Institute of Biology Leiden received a HORIZON2020 grant of 500,000 euros to study the impact of sound conditions on movement decisions of fishes.
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Biologist Carel ten Cate will now really retire. Right?
Pigeons, zebra finches and parakeets. Carel ten Cate studied bird sounds. But not just that. Together with linguists from Leiden, he investigated parallels between birdsong and language. On 9 June, his farewell symposium was held to mark the end of his broad career. Well, the end? Carel ten Cate has…
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Birds around airports may be deaf and more aggressive
Birds around airports are more aggressive and sing as if they have hearing loss. Collaboration between researchers of Manchester Metropolitan University and the Institute of Biology Leiden has led to surprising new findings about the impact of anthropogenic noise on birds around airports. Publication…
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A PCAD-model for fish to study the impact of airgun sound exposure on free-ranging cod
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.
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From the First Galaxies to the Peak of the Star Formation History
How did galaxies form? How did galaxies evolve?
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Isotopes and the characterization of extrasolar planets
Diverse types of exoplanets such as gas giants on close-in orbits (hot Jupiters) and young massive giants on wide orbits (super Jupiters), with no analogs in the Solar System, pose challenges but also opportunities to our understanding of planet formation and evolution.
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Simulating the birth environment of circumstellar discs
Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.
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Aphid genome unravelled
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.
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Evolutionary diversification of coral-dwelling gall crabs (Cryptochiridae)
Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, Dr. B.W. Hoeksema
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The promise of bureaucratic reputation approaches for the EU regulatory state
Reputation literature has provided crucial insights about the evolution of the US regulatory state. Daniel Carpenter’s influential account painstakingly demonstrates the relevance of reputation to bureaucratic ‘power’ and to early institutional state-building in the US context. We argue that adopting…
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Unveiling protostellar disk formation around low-mass stars
Promotor: Prof.dr. E.F. van Dishoeck, Co-promotor: S. Bruderer
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Arie Verhagen
Faculty of Humanities
a.verhagen@hum.leidenuniv.nl | +31 71 527 4152