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'Carabidologists do it all' (Niemelä 1996a) is a phrase with which most European carabidologists are familiar. Indeed, during the last half a century, professional and amateur entomologists have contributed enormously to our understanding of the basic biology of carabid beetles. The success of the field is in no small part due to regular European(More)
Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species' threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic(More)
conductor with nonlinear characteristics, a diode, is illuminated by radar waves, it can re-radiate an harmonic of the original radar signal. This harmonic signal can be detected and used to locate the reflector together with anything attached to it. The energy to operate the reflector is delivered by the illuminating radar. The harmonic radar is such a(More)
Food and feed safety risk assessment uses multi-parameter models to evaluate the likelihood of adverse events associated with exposure to hazards in human health, plant health, animal health, animal welfare, and the environment. Systematic review and meta-analysis are established methods for answering questions in health care, and can be implemented to(More)
Destructive host-feeding is common in hymenopteran parasitoids. Such feeding may be restricted to host stages not preferred for oviposition. However, whether this is a fixed strategy or can vary according to resource levels or parasitoid needs is less clear. We tested the trade-off between host feeding and oviposition on two whitefly parasitoids under(More)
E. wiltoni Locket, Leptyphanthes tenuis (Blackwall) dominated in pitfall trap catches. In this paper, we provide the first quantitative data on the density and diversity of spiders in New Zealand cultivated land under different management regimes, and compare the species assemblages with those found in similar habitats in England. Our main study site was on(More)
In China, two invasive pests, Bemisia tabaci MEAM1 (Gennadius) and Frankliniella occidentalis (Pergande), often co-occur with the native pest, Aphis gossypii (Glover), on plants of Malvaceae and Cucurbitaceae. All three are preyed on by the native ladybird, Harmonia axyridis (Pallas); however, the native predator might be expected to prefer native prey to(More)
Sentinel prey can provide a direct, quantitative measure of predation under field conditions. Live sentinel prey provides more realistic data but rarely allows the partitioning of the total predation pressure; artificial prey is less natural but traces left by different predators are identifiable, making it suitable for comparative studies. We reviewed the(More)
Previously, we demonstrated via meta-analysis that Cry toxins and proteinase inhibitors that are used in GM plants have nonzero direct and indirect effects on arthropod predators and parasitoids in the laboratory (Andow et al. 2009, Lö vei et al. 2009). Our purpose was not to analyze the risks associated with any particular GM plant, but to measure whether(More)