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Earthworms winners of humid 2023 & Leeuwarden bags the title Soil Animal City of the Year
Spring has started in the Netherlands, and that means our soil life is very active again. How much do we know of the creatures living under our feet? That is where the citizen science project of the Soil Animal Days comes in. What did the results of 2023 show us? Earthworms like wet weather and managed to retain their position in the national soil animals Top 3: they were spotted in 87% of gardens. And in Leeuwarden, people searched for soil animals with such enthusiasm and a clear focus on the importance of soil animals that the Frisian capital may proudly call itself Soil Animal City of the Year. -
Seasonal timing
Species can adapt over the course of time. As the lives of species are altered by climate change, a different seasonal timing could make them adapt to an early spring, for example. How does this work, and what are the limits to such adaptations? -
Dealing with bluegreen algae
Worldwide, excessive nutrient loads in lakes and reservoirs have led to the rapid increase of harmful cyanobacteria. Blooms of these algae block the use of surface water for drinking, irrigation and recreation. Climate change is expected to further increase the frequency, duration, and magnitude of cyanobacterial blooms. Aquatic ecologists from NIOO are busy gaining more detailed insights into cyanobacterial blooms across scales, in future climates and in respect to toxicity. -
Impact of nutrients
Nutrient availability in natural ecosystems has increased due to anthropogenic activities like spill-over from agricultural ecosystems. In the Netherlands, this has led to the acidification of natural areas for example. At NIOO, we aim to understand the impact of nutrients on natural systems in more detail, to help to bring back the balance. -
How do nutrients and temperature affect cyanobacterial bloom toxicity?
Toxic cyanobacterial blooms threaten freshwater quality, made worse by climate change and eutrophication. The toxicity of these blooms depends not only on cyanobacteria quantity but also on the presence potentially toxin-producing species and genotypes, and their varied toxin production. -
Climate change impacts on harmful algal blooms
Harmful cyanobacterial blooms produce toxins that are a major threat to water quality and human health. Blooms increase with eutrophication and are expected to be amplified by climate change. Yet, we lack a mechanistic understanding on the toxicity of blooms, and their response to the complex interplay of multiple global change factors. Bloom toxicity is determined by a combination of mechanisms acting at different ecological scales, ranging from cyanobacterial biomass accumulation in the ecosystem, to the dominance of toxic species in the community, contribution of toxic genotypes in the population, and the amounts of toxins in cells. -
National Soil Animal Days 2024
Every year around World Animal Day, we go on safari in our own gardens looking for the important but often overlooked soil animals. This year marks the 10th edition of the Soil Animal Days. -
Observations National Soil Animal Days 2023
Every year around World Animal Day, it's time to go on safari in your own garden - looking for the all-important but often overlooked soil animals. 2023 will mark the 9th edition of the Dutch Soil Animal Days. The annual event, organised by NIOO and a growing number of partners, is still welcoming observations. All observations up to and including 31 October will count for the national Soil Animal Top 3 of 2023. -
Inaugural lecture by Dedmer van de Waal
Op donderdag 6 juli houdt Dedmer van de Waal zijn oratie als bijzonder hoogleraar Aquatische Functionele Ecologie aan de Universiteit van Amsterdam. -
National Soil Animal Days 2023
Ieder jaar gaan we rond Dierendag op safari in eigen tuin, op zoek naar die belangrijke maar vaak vergeten bodemdieren. In 2023 is het tijd voor de 9e editie!