Dokumente Fakultät für Biologie und Psychologie (inkl. GAUSS) nach Gutachter "Vidal, Stefan Prof. Dr."
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Agricultural intensification, biological pest control and spatio-temporal changes in food web structure
(2011-11-22)Agricultural intensification (AI) is a major driver of losses in agrobiodiversity and associated ecosystem functions such as biological control, thereby indirectly affecting agricultural ... -
Ants and spiders in grassland food webs
(2008-08-29)A challenge in ecology is to uncover the link between food web interactions and ecosystem function. Recent studies have shown that top-down forces by invertebrate predators on their prey ... -
Below- and aboveground farmland biodiversity in relation to local and regional management
(2010-06-02)The expansion of global croplands, plantations and pastures in the last decades, which led to a dramatic change in the spatial structuring of agricultural landscapes is one of the main ... -
Long-term development of different grassland insect communities in Central Europe since the 1950s
(2011-09-13)Central European landscape considerably changed during the second half of the 20th century. These changes are probably mainly caused by modern agriculture. Today, Central Europe consists ... -
Monitoring der Resistenzentwicklung des Maiszünsler (Ostrinia nubilalis), Hübner) gegenüber Bt-Mais
(2004-04-23)Goal of this thesis was to collect data about baseline susceptibility and resistance allele frequency of the Euopean corn borer (Ostrinia nubilalis, Lepidoptera: Pyralidae) in Germany and ... -
Multitrophic interactions along a plant size gradient in Brassicaceae
(2015-02-19)Plant size is hypothesised to be a major driver of biotic interactions, as larger plants are more conspicuous and offer a wider range of resources and niches for associated animals. However, the role of interspecific ... -
Pollinator biodiversity, functional complementarity and dynamic plant-pollinator interaction networks
(2012-11-06)Worldwide declines in biodiversity have prompted concerns about the functioning of ecosystems that may rely on it. This is also true for the pollination of plants, which is essential for the reproduction and thus long-term ... -
Räumlich-zeitliche Auswirkungen der Landnuzung auf die Diversität von Bienen und Wespen.
(2006-03-17)Anthropogenic land use changes may have major consequences for global biodiversity and the functioning and stability of ecosystem processes. However, species diversity is determined by a ... -
Trophic interactions of ants, birds and bats affecting crop yield along shade gradients in tropical agroforestry
(2015-12-09)Tropical agroforests are diverse systems where several predator groups shape animal communities and plant-arthropod interactions. Ants, birds and bats in particular can reduce herbivores and thereby increase crop yield. ...