Department of Evolutionary Biology and Environmental Studies

PhD position: Experimental evolution of reproductive strategies under varying sex ratios 80 %

Start of employment 01.09.2025, temporary

Prof. Dr. Stefan Lüpold from the Department of Evolutionary Biology and Environmental Studies seeks a highly motivated PhD candidate to investigate how operational sex ratios shape long-term evolutionary adaptations in reproductive strategies. The project leverages Drosophila prolongata populations experimentally evolved over 60 generations under male- or female-biased OSR regimes. This work addresses critical gaps in understanding how competition and mate choice drive the evolution of male and female mating strategies in dynamic social environments.

Your responsibilities

This fully funded project of 4 years combines large-scale experimental evolution with cutting-edge deep-learning tools for automated, high-throughput phenotyping of behavioral and morphological traits. This approach allows rigorous testing of hypotheses about adaptive benefits of evolved strategies in mixed social contexts.

Your profile

  • Master's degree in evolutionary biology, ecology, animal behavior, or a related field
  • Good knowledge of sexual selection theory and evolutionary ecology
  • Experience with statistical analysis using R or similar
  • Enthusiasm for lab-based experimental work using a unique Drosophila species
  • Ability to work independently and collaboratively in an interdisciplinary team
  • Strong written and verbal communication skills in English
    Prior experience with behavioral assays, insect experimentation, or deep-learning is a plus though not essential. We prioritize candidates with a commitment to learning these techniques.

Information on your application

Please send the following documents to the contact below:
  • Motivation letter (1-2 pages) describing your expertise and interests, as well as why you see yourself as a good fit for this project
  • CV with publication list (if available) and contacts of 2-3 referees
  • Academic transcripts
  • Interviews will start on 9 June 2025.

What we offer

Our employees benefit from a wide range of attractive offers. More

What we offer

Work-Life Balance
  • Flexible working models (such as part-time positions, mobile working, job-sharing)
  • Childcare at the kihz foundation of UZH and ETH


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Learning and Development
  • Wide range of continuing education courses of UZH and the Canton of Zurich
  • Language Center run jointly with ETH Zurich

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Food
  • Food and drinks at reduced prices in the UZH cafeterias
  • Lunch-Check-card with UZH contribution

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Healthcare
  • Special conditions on the Academic Sports Association ASVZ
  • Free seasonal flu vaccinations
  • Rest and relaxation at the quiet room in the university tower

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Discounts
  • Private traffic: Carsharing, rent a vehicle, parking space
  • Digitalization: Hardware, software, mobile phone subscriptions
  • Special conditions on hotel reservations

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Conditions of Employment
  • Policies of the UZH
  • Most UZH staff are employed according to public law


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International Services
  • Support for people from outside Switzerland

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Campuses
  • Campuses Zurich City, Zurich Irchel, Oerlikon and Schlieren
  • Sites Zurich West, Old Botanical Garden, Botanical Garden and Lengg

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Further information

Questions about the job

Prof. Dr. Stefan Lüpold Professor +41 44 635 47 77
Contact Form

Contact question to: Prof. Dr. Stefan Lüpold

Thank you for your message. We will get back to you shortly.

Questions about the application procedure

Isabel Schöchli Administrative assistant +41 44 635 52 04
Contact Form

Contact question to: Isabel Schöchli

Thank you for your message. We will get back to you shortly.
Working at UZH
The University of Zurich, Switzerland's largest university, offers a range of attractive positions in various subject areas and professional fields. With around 10,000 employees and currently 12 professional apprenticeship streams the University offers an inspiring working environment on cutting-edge research and top-class education. Put your talent and skills to work with us. Find out more about UZH as an employer!
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Please apply via our job portal www.jobs.uzh.ch.

Working at UZH

The University of Zurich, Switzerland's largest university, offers a range of attractive positions in various subject areas and professional fields. With around 10,000 employees and currently 12 professional apprenticeship streams the University offers an inspiring working environment on cutting-edge research and top-class education. Put your talent and skills to work with us. Find out more about UZH as an employer! More
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