• Publications
  • Influence
Intraguild interactions between spiders and ants and top-down control in a grassland food web
In most terrestrial ecosystems ants (Formicidae) as eusocial insects and spiders (Araneida) as solitary trappers and hunters are key predators. To study the role of predation by these generalistExpand
Integrating ecosystem engineering and food webs
Ecosystem engineering, the physical modification of the environment by organisms, is a common and often influential process whose significance to food web structure and dynamics is largely unknown. Expand
Intraguild interactions among generalist predator functional groups drive impact on herbivore and decomposer prey
We found no positive effect of increasing predator functional group richness on prey control. However there was evidence for strong composition effects between the functional groups. The presence ofExpand
Defensive insect symbiont leads to cascading extinctions and community collapse
Abstract Animals often engage in mutualistic associations with microorganisms that protect them from predation, parasitism or pathogen infection. Studies of these interactions in insects have mostlyExpand
Habitat structure mediates top–down effects of spiders and ants on herbivores
Abstract Differences in structural complexity of habitats have been suggested to modify the extent of top–down forces in terrestrial food webs. In order to test this hypothesis, we manipulatedExpand
Effects of urbanization on direct and indirect interactions in a tri-trophic system.
While effects of urbanization on species assemblages are receiving increasing attention, effects on ecological interactions remain largely unexplored. We investigated how urbanization influences theExpand
Low Levels of Artificial Light at Night Strengthen Top-Down Control in Insect Food Web
Artificial light has transformed the nighttime environment of large areas of the earth, with 88% of Europe and almost 50% of the United States experiencing light-polluted night skies [1]. TheExpand
The loss of indirect interactions leads to cascading extinctions of carnivores.
Species extinctions are biased towards higher trophic levels, and primary extinctions are often followed by unexpected secondary extinctions. Currently, predictions on the vulnerability of ecologicalExpand
Individual and species-specific traits explain niche size and functional role in spiders as generalist predators.
The function of a predator within a community is greatly based on its trophic niche, that is the number and the strength of feeding links. In generalist predators, which feed on a wide range of prey,Expand
Herbivory in Spiders: The Importance of Pollen for Orb-Weavers
Orb-weaving spiders (Araneidae) are commonly regarded as generalist insect predators but resources provided by plants such as pollen may be an important dietary supplementation. Their webs snareExpand