24. Birkhofer K (2016) Conservation biological control of arthropod pests under a changing climate. 25th International Congress of Entomology, Orlando, USA (invited by J. Ding)

23. Birkhofer, Smith HG (2016) Large scale agricultural intensification alters the relationship between biodiversity and multiple ecosystem services. 46th Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Marburg, Germany

22. Birkhofer K (2016) Interactions between above- and belowground organisms contribute to the provision of conservation biological control services. Workshop Plant-soil-microbe interactions for crop and pest management, Wageningen University (invited by A. Pineda, M. Bezemer & I. Kaplan)

21. Birkhofer K (2016) Conservation biological control and ecological intensification. BOKU Vienna, Austria (invited by T. Frank)

20.  Birkhofer K (2015) Threats to conservation biological control in Sweden. Stellenbosch University, South Africa

19. Birkhofer K, Smith HG (2015) Effects of landscape complexity on multi-taxon indicator bundles for ecosystem services. ICCB-ECCB, Montpelier, France

18. Birkhofer K (2015) Quantifying predation in terrestrial ecosystems. 45th Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Göttingen, Germany

17. Birkhofer K, Bengtsson J, Smith HG (2014) Understanding farming system effects on spatial and trophic interactions between generalist predators, aphids and barley in southern Sweden. 10th European congress of Entomology, York, UK (invited by J Bell)

16. Birkhofer K (2014) Land-use effects on the functional diversity of terrestrial invertebrate communities. 10th European congress of Entomology, York, UK (invited by WW Weisser)

15. Birkhofer K, Ekroos J, Smith HG (2014) Effect of maize on the diversity of arthropod predators and its value as a resource for arthropod fauna. Seminar 475 of the Nordic Association of Agricultural Scientists, Kristianstad, Sweden

14. Birkhofer K, Smith HG (2013) The right kind of diversity (or why it still is so difficult to relate diversity to ecosystem functions). 43rd Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Potsdam, Germany

13. Birkhofer K, Ekroos J, Smith HG (2013) Organic farming and animal communities in Europe: winners and losers, taxonomic breadth and latitudinal gradients. 11th INTECOL Congress, London, UK

12. Birkhofer K, Wolters V, Diehl E (2013) The role of ecological and phylogenetic constraints for the topology of terrestrial predator-prey networks. Symposium “Food Webs: Science for Impact” Schloss Rauischolzhausen, Germany (invited by PC de Ruiter, JC Moore and V Wolters)

11. Birkhofer K, Smith HG (2012) A landscape of fear or a sea of opportunities: the spatial relationship between arthropods and vegetation in cereal farming systems. 42nd Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Lüneburg, Germany

10. Birkhofer K (2012) Scale dependent biological control: Global, regional and within field spatial interactions between natural enemies and cereal aphids. 4th International EcoSummit, Columbus, US (invited by Dr. K. Hedlund)

9. Birkhofer K, Wolters V (2010) Litter utilization by soil animals and cascading effects on aboveground generalist predators in arthropod food webs. 4th Annual Meeting of the Netherlands Ecological Society, Lunteren, Netherlands (invited by Dr. E. de la Pena)

8. Birkhofer K, Wolters V (2010) Processes at different spatial scales affect soil invertebrate communities and their functional role in grassland habitats. 40th Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Giessen, Germany

7. Birkhofer K, Wolters V (2009) Sustainable agro-ecosystems & soil organisms: moving towards a process-oriented understanding of management impact. 94th Conference of the Ecological Society of America (ESA), Albuquerque, US (invited contribution to the symposium “How can soil microbial ecology contribute to the sustainability of agricultural systems?” by T. Cheeke-Icoz)

6. Birkhofer K, Wolters V (2008) Scale-dependence of diet composition in spiders: effects of hunting strategy, habitat and global distribution. 24th European Conference of Arachnology, University Bern, Switzerland

5. Birkhofer K, Scheu S (2007) Cursorial spiders retard initial aphid population growth in winter wheat: a molecular approach. 17th International Congress of Arachnology, Sao Pedro, Brazil

4. Birkhofer K, Wolters V (2007) Plant-based payment schemes for ecological goods: do ground-dwelling spiders profit? 37th Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Marburg, Germany

3. Birkhofer K, Scheu S, Wise DH (2006) Pest control potential of web-building spiders in alfalfa. 23rd European Colloquium of Arachnology, Sitges, Spain

2. Birkhofer K, Wise DH, Scheu S (2006) Consequences of microhabitat diversification for agrobiont generalist predators. 36th Annual Conference of the Ecological Society of Germany, Switzerland and Austria, Bremen, Germany

1. Birkhofer K, Henschel JR, Scheu S (2004) Territorial behaviour of Leucorchestris arenicola. 16th International Congress of Arachnology, Gent, Belgium