S (Sina) Bohm

Research at Vegetation and Landscape Ecology (VLE)

Since May 2025, I have been working as a researcher in the Vegetation and Landscape Ecology (VLE) team at Wageningen Environmental Research (WENR). Together with the team, I assess the vitality of populations of native, vulnerable plant species in the Netherlands, using field measurements and genetic research. For some species, we carry out experimental reintroductions or restoration. In addition, I am involved in the monitoring and evaluation of the Nitrogen Reduction and Nature Improvement Act (NL: Wet stikstofreductie en natuurverbetering; Wsn).

PhD research on population ecology and translocation of vulnerable wild plants

My PhD research focuses on the ecology and genetic diversity of protected forest plant species in the Netherlands. Many herbs of old-growth, species-rich forests are rare and scattered across small, isolated populations throughout the country. Limited genetic exchange between populations can lead to inbreeding in plants, with negative consequences for their vitality. Inbred populations may regain vitality and resilience by introducing plants from other forests—a method known as genetic reinforcement. However, a good understanding of the ecology and genetic structure of populations is essential to prevent unintended harm from such interventions. For example, local adaptations could be lost. Research into the genetic structure and ecological requirements of a species is crucial to making genetic reinforcement and reintroductions successful. That is why I study the genetic structure and suitable habitat of oxlip (Primula elatior), a characteristic species of old-growth woodlands.

Reintroducing plants – with or without microorganisms?

The role of microorganisms in plant reintroductions is a hot topic in the research field. Plants interact with bacteria and fungi in the soil. Some microorganisms help plants absorb nutrients, while others are harmful pathogens. Especially in forests where ecological conditions have only recently been restored or in newly planted forests, the microbial communities differ from those in typical old-growth forests—often fewer or different types of microorganisms are present. The question is whether a plant species benefits from the co-introduction of local microorganisms via soil inoculation when being reintroduced into a forest. I investigate this question through greenhouse and field experiments with oxlip (Primula elatior), European guldenrod (Solidago virgaurea), and Slender St. John's wort (Hypericum pulchrum), using soils with and without inoculation.

• WWF Germany (1-3-2021/31-12-2099)
  WWF Junior or Youth Camps are vacation camps for children between 7 and 21 years of age. |I am helping at these camps as a so called Teamer providing supervision and nature education.