The Team Natuur in Productie (Nature in production) is a group of international researchers, following the way nature develops at Marker Wadden step by step financed by the Gieskes-Strijbis Fond. Their home bases are Netherlands Institute of Ecology (NIOO-KNAW) , Radboud University of Nijmegen (RU) and University of Groningen (RUG).

Liesbeth Bakker, Dr.

I am a wetland and wildlife ecologist studying ecosystem functions and services, food webs,
restoration ecology and rewilding. I am particularly interested in the impact of wildlife on
biodiversity, ecosystem functions and landscape structure in relation to global change and
human pressure. I am a senior scientist at the Department of Aquatic Ecology of the
Netherlands Institute of Ecology (NIOO-KNAW) and the chair of the Centre for Wetland Ecology.

You can find more information about me at:

At the Marker Wadden I am project leader of the scientific research program Nature in
Production. I supervise the ongoing research by the PhDs and postdoc and coordinate the
outreach and stakeholder participation and communication.

You can contact me at

Casper van Leeuwen, Dr.

I lead a Junior Research Group at the Netherlands Institute of Ecology in which we study the movement and interactions of plants and animals in freshwater ecosystems. We aim to understand how, why and when organisms move – and how their consequential presence or absence affects aquatic food webs. We inclusively study phytoplankton, zooplankton, aquatic invertebrates, aquatic plants, fish and waterbirds, and ask questions on both ecological and evolutionary timescales.

You can find more information about me on

At the Marker Wadden, I am studying the following topics:
– Fish foraging and spawning activities at the Marker Wadden
– Interactions of fish with the developing food web at the Marker Wadden
– Effects of Marker Wadden on the productivity of the Markermeer food web

You can contact me at

Yvonne Kahlert, MSc

I am an aquatic ecologist and currently doing a PhD at the University of Groningen under the supervision of Prof. Dr. Han Olff. My research interest focus on aquatic ecology, food webs and the cross interactions between water and land.

You can find me on the website of the University of Groningen
or follow me on Twitter

At Marker Wadden I study the following topics:

– the early succession of terrestrial arthropods
– the transfer of energy and nutrients from the aquatic habitats towards the terrestrial ecosystem and its effect on terrestrial arthropods and birds
– the productivity of Marker Wadden in comparison to other nature habitats in times of declines in local species abundance.

You can contact me at

Marloes van den Akker, MSc

I am a passionate and enthusiastic aquatic ecologist with a strong interest in nature restoration and conservation. I like to do research on aquatic ecosystem functioning on the level of the total ecosystem. I am interested in ecosystem engineers, wetland biogeochemistry and biogeophysics, in plant-herbivore interactions and food web assembly and development.

Currently, I am employed as a PhD student at the Radboud University of Nijmegen (RU) at the department of Aquatic Ecology and Environmental Science.

You can also find me on LinkedIn and the website of the University of Nijmegen.

At the Marker Wadden, I am studying the following topics:

– Vegetation development in relation to elevation, water table, soil type, and grazing by geese
– Interactive effects of bioturbation and water table on soil biogeochemistry/biophysics
– Effect of reed on wetland biogeochemistry and biophysics
– Bottom-up and top down regulation of food web development

You can contact me at

Hui Jin, MSc

I am a PhD candidate from Netherlands Institute of Ecology (NIOO-KNAW) with interest in ecological restoration, particularly about the shallow lakes. I am curious about how the ecosystem response to the intervention induced by human activity.

You can find more information about me on

At the Marker Wadden, I am studying the following topics:

– How the islands alter the resources availability for the growth of phytoplankton
– How light and nutrient availability shape the seston property
– How the food quantity and quality affect the zooplankton biomass production
– How the macrophytes colonization affect plankton dynamics

You can contact me at