PhD: Biogeography of plant-associated fungi Galapagos islands - NIOO-KNAW

PhD:
Biogeography of plant-associated fungi on the Galapagos islands - NIOO-KNAW - Wageningen

Background

The Galápagos Islands are a classic model system for studying adaptive radiation, where geographic isolation and environmental heterogeneity have driven the diversification of unique endemic species. Among these, Scalesia (Asteraceae), the iconic “giant daisy,” has evolved into multiple species adapted to different islands, elevations, and soil types. While plant diversification in the Galápagos is well documented, the diversity and biogeography of associated microbial communities remain largely unexplored.

This system provides a unique opportunity to test island biogeography theory (IBT) in plant-associated microbiomes. Emerging evidence suggests that plant-microbial associations can shape host plant establishment, fitness, and distribution. Fungal communities are key components of plant microbiomes, ranging from mutualists to pathogens. In particular, arbuscular mycorrhizal fungi (AMF), yeasts, and fungal pathogens colonizing roots and leaves play critical roles in nutrient acquisition, plant health, and stress resilience.

Understanding this plant–microbe biogeography is therefore essential for both advancing ecological theory and supporting the conservation and restoration of unique island ecosystems.

What you will be doing

In this project, you will investigate the biogeography of above- and below ground fungi associated with several Scalesia species. We aim to develop an integrated view of diversity and distribution of three components of the fungal microbiome: arbuscular mycorrhizal fungi (AMF), yeasts, and fungal pathogens colonizing roots and leaves. This system will provide a unique opportunity to test if the fungal plant microbiome follows classic biogeography theory, while characterizing its spatial distribution as well as taxonomic and functional diversity.

In addition, we will assess how these fungal communities impact plant establishment, fitness, and (a) biotic stress resilience. To achieve these aims, you will employ molecular ecology in combination with microbiology techniques, plant bioassays, field sampling, and bioinformatic tools.

• Closely collaborate with European and Ecuadorian students and partners.
• Communicate your research through presentations at national and international conferences and peer-reviewed publications in scientific journals.
• Supervise HBO and MSc students.
• Contribute to maintaining a friendly, inclusive, and collaborative working atmosphere within the research group.

What you will be contributing

You have an MSc degree in microbial ecology, plant-soil interactions, or related field. You see challenges as opportunities to learn, remain resilient when faced with setbacks, and enjoy finding creative solutions in a dynamic interdisciplinary and international research environment. You also enjoy working in a team environment, taking ownership of your work while contributing to shared goals. You have good communication skills in English, both written and spoken.

What do we offer?

A fully funded 4-year PhD position (1.0 FTE) with a preferred starting date of October 1, 2026. The initial appointment will be made for one year and will be extended an additional three years following a positive evaluation. You will be supervised by experienced researchers and work in close collaboration with other PhD candidates and postdocs within the NIOO. You will become a member of the graduate school PE&RC (https://(Use the "Apply for this Job" box below).

) through which you can follow courses on ecological subjects, research methods, statistical analyses, and transferable skills. In addition, departments and the Netherlands Institute of Ecology (NIOO-KNAW) organise weekly seminars, science lunches, and journal clubs to stimulate scientific discussion and exchange ideas.

You will work at the Netherlands Institute of Ecology (NIOO-KNAW) in Wageningen. This PhD position is embedded within two departments and the Galapagos Microbiome Initiative. The PhD will work with Dr. Camille Delavaux at the Department of Terrestrial Ecology and Dr. Viviane Cordovez at the Department of Microbial Ecology at NIOO-KNAW.

Diversity & Inclusion

The KNAW considers a working environment in which everyone feels welcome and appreciated of great importance. A working environment in which attention is paid to individual quality and where development opportunities are paramount. Together we strive for an inclusive culture in which we embrace differences. We would therefore like to invite candidates who want to contribute to this through their background and experience.

In the event of equal suitability, preference will be given to the candidate who thus enhances diversity within the Academy.