WAGENINGEN – Insects are choosier than you might think: whether or not they end up feeding on a particular plant depends on much more than just the species to which that plant belongs. The quality of the individual plant is an important factor as well. As is the variety of other plants growing around it. But what, ultimately, makes an insect choose one plant over another?

Fields and meadows provide a range of key services, as long as the soil is healthy. A group of researchers and companies will study how farmlands can be returned to multifunctionality.

A hyperparasitoid is a parasitoid whose host is also a parasitoid. NIOO-researcher Martine Kos and her former colleague Roxina Soler have been doing research into ways to protect crops against these harmful insects.

‘Relationships’ in the soil become stronger during the process of nature restoration. Although all major groups of soil life are already present in former agricultural soils, they are not really ‘connected’ at first. These connections need time to (literally) grow, and fungi are the star performers here. A European research team led by the Netherlands Institute of Ecology (NIOO-KNAW) has shown the complete network of soil life for the first time. This Wednesday, the results of the extensive study are published in Nature Communications.

55 trillion kilograms: that's how much carbon could be released into the atmosphere from the soil by mid-century if climate change isn't stopped. And all in the form of greenhouse gases such as CO2 and methane. Tom Crowther (NIOO-KNAW) and his team are publishing the results of a worldwide study into the effects of climate change on the soil in the issue of Nature that came out on 1 December.

In nature, plants cannot grow without soil biota such as fungi and bacteria. Successful plants are able to harness positive, growth-promoting soil organisms while avoiding the negative effects of others. Which plant traits can predict these interactions, or the success of a plant? Researchers and plant breeders would like to know. In a paper in the Journal of Ecology of August 24, a team from the Netherlands Institute of Ecology (NIOO-KNAW), Wageningen University and the Universität Leipzig tested exactly this and found thick roots to be a leading trait.

Restoring nature, for instance on former farmland? That works a lot faster, more precise, and less disruptive via soil inoculation. Take a bit of healthy soil from a natural area close by and restore the desired type of nature within a couple of years. In the journal Nature Plants, the Netherlands Institute of Ecology (NIOO-KNAW) and Natuurmonumenten (Society for Nature Conservation) also solve a long-lasting subject of discussion: it’s the soil bugs that steer such nature restoration.

Epigenetics is a fast-growing field of research all over the world. Ecological epigenetics has now been further advanced thanks to the development of a new research technique. ‘This technique is cheaper and faster and enables research that was previously impossible to conduct.’ The time has come to look at how important epigenetic changes really are for dealing with climate change, plagues and other stress-factors. The research team led by the Netherlands Institute of Ecology (NIOO-KNAW) is publishing its technique in the scientific journal Nature Methods.

Climate-change discussions on social media are very influential. A new study in BioScience shows that when it comes to iconic topics such as polar bears and retreating sea ice, climate blogs fall into two distinct camps. With little or no overlap between deniers and the available scientific facts. The study’s first author, NIOO-KNAW researcher Jeff Harvey says: “It’s time for scientists to counter the misinformation and engage directly with the public far more.”

Ever wonder what makes soil, soil? And could soil from the Amazon rainforest really be the same as soil from your garden? Researchers from the University of Manchester and the Netherlands Institute of Ecology (NIOO-KNAW) are using DNA sequencing to unlock the secrets of the world’s soils, and analyse ecological patterns and microbial communities on a global scale.