741 search results for “species” in the Public website
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Species Literacy in the Netherlands
How can species literacy in the Netherlands be explained and improved?
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Cryptic species discovery
Do understudied animals contain hidden species?
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Invasive plant species, models for evolutionary change
Which traits did change due to the invasion process of plants and how do these traits contribute to the invasiveness of such species. What is the role of carbohydrate accumulation? What is the function of carbohydrate accumulation in plants? Is genetic variation depleted in invasive species under se…
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Impacts of fire on invertebrate species
What impact does a mid-season wildfire have on grassland invertebrates?
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Trans-species perspectives on African Studies
In the last couple of decades an ‘animal turn’ has taken place in the social sciences. This has led to a call to study social issues by including non-human animal perspectives. This Collaborative Research Group thinks it's high time that African Studies joins the chorus of minds that try to contribute…
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Impacts of grassland wildfire on invertebrate species
Does a mid-season fire impact invertebrate populations?
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Diversity in the globally intertwined giant barrel sponge species complex
This thesis describes the genetic and prokaryotic diversity of giant barrel sponges.
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Unlocking Nature’s Pharmacy from Bogland Species
Development of Natural Resource for New Medicines
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Patterns of coral species richness and reef connectivity in Malaysia
Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema
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Phylogeny and species delimitation within the moss genus Dicranum Hedw.
Promotor: Prof.dr. E. Smets, Dr. M. Stech
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Species Literacy: The perception and cultural portrayal of animals
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.
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Postdoc Unlocking Nature’s Pharmacy from Bogland Species
Science, Institute of Biology Leiden (IBL)
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Postdoc, (Unlocking Nature’s Pharmacy from Bogland Species)
Science, Institute of Biology Leiden (IBL)
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intra and interspecific variation in stems of herbaceous and woody species
My PhD thesis investigates the ecological significance of resistance against drought-induced air bubble formation inside the water conduits of plants (embolism), and the plasticity and functional aspects of stem anatomical traits in woody and herbaceous species.
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Effects of light at night on plants and their interactions with other species
What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?
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Special issue: Storying multi-species relationships, commoning and the state in the Himalayas
Himalayan environments have changed and continue to change as a result of how people interpret, source, and use them. Scholarly investigation of the induced transformations, whether in deforestation, dam construction, or glacial melt, highlights how man is shaping the world in the Anthropocene.
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candidate in Animal Cognition, Biases in auditory perception: a cross-species comparison
Science, Institute of Biology Leiden (IBL)
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of leptin in tuberculosis and diabetes: multi-omics studies across species
In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.
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chemical diversity in plants: pyrrolizidine alkaloids in Jacobaea species
Promotor: P.G.L. Klinkhamer, Co-Promotores: K. Vrieling, P.P.J. Mulder
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Plant species disappear and reappear
The disappearance and reappearance of species of plants in the Netherlands is a normal phenomenon. In the period from 1981-2000 the number of plants to have disappeared was considerably lower than previously, whereas the number of species rediscovered is much higher. Climate change may be the cause.
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feeeders between introduced Ring-necked parakeets and native bird species in the Netherlands
Does the presence of Ring-necked parakeets negatively influence feeding and feeding behaviour of native bird species on artificial bird feeders and if so, what are possible solutions?
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Neural correlates of vocal learning in songbirds and humans: cross-species fMRI studies into individual differences
Vocal learning is a trait shared by songbirds and humans. It is also a trait that is restricted by the brain rather than by a species' vocal apparatus. In this dissertation, functional MRI is employed in both species in order to explore potential common neural mechanisms underlying the ability to develop…
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Models Predicting the Toxicity of Metal-based Nanoparticles to Aquatic Species
Describe and identify what dosimetry parameters are of importance to interpret dose-response relationships (eg., mortality, sub-lethal, growth or reproduction inhabitation, DNA damage and reactive oxygen species, etc. ) for metal-based nanoparticles? How to develop quantitative models that enable to…
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Hundreds of fossil tree species belong to a single species
Paleobotanist Menno Booi discovered that 250 previously described fossil tree species are objectively not distinguishable; they belong to only one single species.
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longevity and stress response modelled by stem cells from a variety of species.
Science, Leiden Academic Centre for Drug Research (LACDR)
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Measuring species traits for biodiversity policy goals
An international team including Peter van Bodegom shows how trait variability can be incorporated in Essential Biodiversity Variables to allow monitoring how organisms respond to global change. They published their results in the journal Nature Ecology & Evolution.
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Parallel evolution in an invasive plant species: evolutionary changes in allocation to growth, defense, competitive ability and regrowth of invasive
Promotor: Prof.dr. P.G.L Klinkhamer
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Dutch youth unfamiliar with native animal species
For the first time research has been done on species literacy in the Netherlands. Children in primary schools know about 1 in 3 native animal species. Publication in Biological Conservation.
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The underwater Hobbit – a new shrimp species
‘In a hole under water there lived a hobbit’: a new species of shrimp named after Bilbo Baggings. Biology student Werner de Gier described this newly discovered species during his bachelor internship at Naturalis Biodiversity Center.
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Student discovers new shrimp species by chance
When biology student Mike Groenhof was making a phylogenetic tree of fifty shrimp species for his internship, one specimen turned out to be an undescribed species. The animal was collected by Naturalis scientist 18 years ago, and had been under the radar ever since.
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Using DNA to look for fish species
Researchers from Biomon have used DNA-techniques to find 40 different species of fish in the river Dommel. This technique is capable of detecting more species than conventional methods of measuring.
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How tree species adapt to climate change
Can trees adapt to (climate) change? Which trees are more or less capable of doing so, and why? A group of researchers from all over the world set to work on these questions. Professor of Environmental Biology Peter van Bodegom helped to classify the functional traits of tree species. These are for…
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Green miner: new plant species mines metal
A plant that takes metal from the ground all by itself: a natural way to mine or to clean the soil. PhD student Roderick Bouman (Hortus Botanicus Leiden) described a new plant species from Sabah, Borneo, which can be used to extract nickel. In an open access article in Botanical studies, he and the…
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Nature's Nether Regions
What the Sex Lives of Bugs, Birds, and Beasts Tell Us About Evolution, Biodiversity, and Ourselves, Menno Schilthuizen reports from the front lines of evolutionary biology, on a quest to make sense of the origins, workings and evolution of our and other species’ reproductive selves.
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The complicated conservation problem of genetic pollution
How does invasive hybridization affect threatened native species?
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Habitats of freshwater fish species are threatened by global warming
The habitats of freshwater fish species are threatened by global warming, mainly due to rising water temperatures. This is the conclusion of a study led by Radboud University, in collaboration with Utrecht University, PBL Netherlands Environmental Assessment Agency, Leiden University and others. The…
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New rare species named after Hortus prefect Paul Kessler
A new plant species was named after Paul Kessler, prefect of the Leiden Hortus botanicus. Kessler discovered the small tree, which is related to the kiwifruit, himself.
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Newly discovered plant species store manganese in leaves
Leiden scientists have discovered a new plant genus with two new species at a potential nickel mine site in Indonesia. Remarkable characteristic of the plants: they store manganese in their leaves.
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Most species-rich coral reefs are not necessarily protected
Coral reefs throughout the world are under threat. After studying the reefs in Malaysia, Zarinah Waheed concluded that there is room for improvement in coral reef conservation. PhD defence 22 November.
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Ecology of the Ethiopian wolf (Canis simensis Rüppell 1835) in a changing landscape: Human carnivore interactions in Afroalpine ecosystems of
Ethiopian wolves are endangered diurnal Afroalpine rodent hunters. I investigated the interaction between wolves, rodents and human land use in Borena Sayint National Park (BSNP), Abune Yosef and Aboi Gara in Ethiopia.
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NanoFeed
Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?
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Towards understanding the toxicity of copper nanoparticles in aquatic ecosystems
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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Resolving rapid radiations
What are the phylogenetic relationships among the members of speciation bursts?
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deposition elements through the food web – impacts on butterflies and moth species
Nitrogen deposition does not only affect plant biodiversity, but also strongly affects the composition of the remainder of the food web, through the changes in plant composition. In an unprecedented analysis of population changes of butterfly and moth species, an international research team including…
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These animal species are dear to us, but can we protect them?
Animal species that are dear to us in the Netherlands often spend a large part or all of their lifecycle in other parts of the world. But their habitats worldwide are under increasing pressure, are often inadequately protected and much poorer than the global average. ‘If we truly care about these animals,…
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Metagenomics for community ecology; a next generation of eDNA monitoring tool for biomass studies in freshwater environments
How can we quantify the density of species within a community through environmental DNA concentrations?
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Dynamic biogeography – Hybrid zone movement
Does a moving hybrid zone leave a genomic footprint?
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Weathering the Ice Age
Where did species survive the cold cycles of the current Ice Age?
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Invertebrates on the edge
What invertebrates live in the fields and edges? Do the populations change with landscape complexity?
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Systematic, phylogenetic and pollination studies of Specklinia (Orchidaceae)
Promotor: Prof.dr. E.F. Smets, Co-promotores: Dr. B. Gravendeel, F. Pupulin