Each of Mistra EviEM’s systematic reviews is conducted as a project by a group of specially appointed experts. Here you can read about our ongoing and completed projects.
Many species that previously associated with meadows and pastures can now be found on roadsides instead. But how should roadside management be carried out in order to benefit the diversity of plants and animals?
What is the impact on soil organic carbon (SOC)? Now, EviEM has started a systematic review in which we analyse the results of these studies and examine which crop rotations are favourable for organic carbon in agricultural soil.
How does managed burning in forests affect species that do not directly depend on fire or the dead wood that fires provide? EviEM examined the evidence from a recently completed systematic map on biodiversity effects of active management in forest set-asides.
In parallel with the recorded increase in use of Neonicotinoid insecticides there have been increasing concerns and debate about the potential negative effects of these insecticides on non-target organisms, particularly on bees. Against this background, in some countries legislators and politicians have been faced with a need to make decisions on the future registration of some or all of this class of insecticides.
Can valuable forest ecosystems be conserved or restored by manipulation of grazers and browsers? EviEM has reviewed how changes of the grazing pressure affect forest plants and invertebrates.
Can manipulation of dead wood help to conserve or restore forest biodiversity? EviEM investigates how prescribed burning and creation or addition of dead wood affect forest flora and fauna.
SR11 Which agricultural management interventions are most influential on soil organic carbon (using time series data)?
Farmers are often faced with a variety of choices of land management practices, but little is known about their relative impacts on long-term conservation of soil carbon. EviEM is conducting a systematic review of the long-term (>10 years) impacts of farmland management on soil organic carbon.
Reducing the intensity of tillage of arable land is a common environmental management practice for conserving carbon in the soil, but the quantitative impacts of these practices is not well understood. EviEM has undertaken a systematic review of studies investigating the impacts of tillage on soil organic carbon.
Many species that previously associated with meadows and pastures now thrive on roadsides. EviEM has performed a systematic review of how the biodiversity of roadsides is affected by various kinds of management.
Vegetated strips (permanently vegetated land within or around agricultural fields) are used to reduce the impacts of intensive farming activities in a variety of ways, for example, by providing habitats for organisms, and reducing nutrients in ground water. A large volume of research exists regarding the use and efficacy of vegetated strips, and EviEM has produced a systematic map on the topic.
How are the early life stages of fish impacted by various human disturbances in shallow coastal nursery habitats? In order to clarify what science has to say on the matter, EviEM conducts a systematic review of the evidence.
Should forests set aside for conservation or restoration be left untouched, or is active management required if their biodiversity is to be preserved? EviEM has assessed the scientific evidence on this issue.
Many poly- and perfluorinated alkylated substances (PFAS) are toxic and persistent, and production of some of these chemicals is now being phased out. EviEM has no studied how this has affected PFAS concentrations in the environment.
Agricultural land has the potential to store carbon. EviEM has mapped out the evidence relating to how different farming methods affect the amount of organic carbon in arable soils.
Reducing the stocks of zooplankton-feeding fish such as roach and bream can be a way to curb algal blooms and similar problems in eutrophic lakes. In Sweden, the method has only been tried in a few cases. EviEM has assessed how useful it is.
In recent years, many wetlands have been constructed or restored in order to absorb nutrients from watercourses. But how much nutrients do such wetlands actually remove? EviEM has reviewed the available evidence on this subject.
Are reindeer harming the mountain vegetation of Northern Scandinavia? Or is their grazing, on the contrary, essential for maintaining the diversity of the montane flora? Opinions on this issue have been divided over the years, but Mistra EviEM has now conducted a systematic review that attempts to achieve unequivocal answers.