Applied Arthropod Ecology

The research group studies ecological interactions among arthropods and plants in managed and semi-natural ecosystems. It includes effects of crop and plant diversity on herbivores and their natural enemies, monitoring of organisms, and impact of management practices on functional biodiversity of insects and other fauna - from population to landscape level.

Cocinellid in aphid colony

Our goal is to contribute to the development of sustainable use of natural resources, which facilitate adaptation to changes in management practices, land-use and climate. We focus on monitoring and management strategies in production systems, with emphasis on preventive and direct measures of biological control. It encompasses methods that characterise the complex interactions of organisms in ecosystems by field experiments, insect observations, laboratory bioassays, and molecular methods.

 

  • Functional biodiversity in managed and natural ecosystems
  • The biology and ecology of insect pests and their natural enemies in agroecosystems
  • Monitoring of organisms
  • Biodiversity impact on ecosystem services

 

AllEcoSys - Agroecology living labs fostering prosperous and sustainable agri-food systems (Innovation Fund Denmark /Agroecology partnership Horizon Europe, 2025-2028)

WHEATSUSTAIN – Sustainable wheat futures: Natural enemies in gout fly management (Danish EPA /Miljøstyrelsens program for Bekæmpelsesmiddelforskning, 2025-2027)

GSC Agroforestry - Exploring barriers and drivers of agroforestry adoption in Denmark to foster sustainable land use – (KU Funding /GSC Knowledge Gap Project, 2025-2026)

PROSPER – Promote organic strawberry production under protected conditions in Denmark (GUDP, 2023-2027)

AgroBioConnect: Connections in the landscape - Role of landscape complexity in agroecosystem sustainability (SusCrop ERA-NET, GUDP, 2023-2026)

 

Jachowicz N, Jacobsen SK, Sigsgaard L (2025) Molecular gut content analysis reveals predator feeding preferences and potential for biological control of aphids in sugar beet fields. BioControl 70: 627–638

Frohling CB, Sigsgaard L, Jacobsen SK (2025) Plant diversification impact on the oviposition response of a predatory bug in a laboratory set-up. Agric Forest Entomol

Jachowicz N, Sigsgaard L (2025) Highly diverse flower strips promote natural enemies more in annual field crops: A review and meta-analysis. Agric Ecosyst Environ 109412

Jensen PM, Danielsen F, Jacobsen SK, Vikstrøm T (2024) Fair concordance between Google Trends and Danish ornithologists in the assessment of temporal trends in Danish bird populations highlights the informational value of big data. Environ Monit Assess 196:276

Jacobsen SK, Sigsgaard L, Johansen AB, Thorup-Kristensen K, Jensen PM (2022) The impact of reduced tillage and distance to field margin on predator functional diversity. J Insect Conservation 26:491-501

 

 

Researchers

Name Title Phone E-mail
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Caroline Bayer Frøhling PhD Fellow +4535333914 E-mail
Lene Sigsgaard Associate Professor +4535332674 E-mail
Nika Jachowicz-Miranda Postdoc E-mail
Per Moestrup Jensen Associate Professor +4535332673 E-mail
Peter Esbjerg Professor Emeritus +4535332686 E-mail
Stine Kramer Jacobsen Associate Professor +4535332675 E-mail
Troels Vogelius Bang Research Assistant E-mail

Research group leader

Stine Kramer Jacobsen
Associate Professor
stikra@plen.ku.dk
+4535332675