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Diet, fecundity and egg size in some polyphagous predatory carabid beetles
TLDR
Variations in fecundity, as well as the ability of the medium‐sized species to also build up fat reserves, were obtained when beetles were subjected to different dietary regimes consisting of aphids, or foods with a lower or higher protein content. Expand
The harmonic radar: a new method of tracing insects in the field
TLDR
A novel technique for tracing the movements of insects in the field based on radar technology originally developed for locating avalanche victims, which has been successfully tested in a field‐tracing experiment with carabid beetles. Expand
Movements of carabid beetles (Coleoptera: Carabidae) inhabiting cereal fields: a field tracing study
TLDR
No statistically significant difference was observed between the movements of hungry and satiated beetles, although starved beetles tended to disperse shorter distances per move and turned back more often (especially P. niger). Expand
Influence of Hunger Level and Prey Densities on Movement Patterns in Three Species of Pterostichus Beetles (Coleoptera: Carabidae)
TLDR
The foraging behavior of hungry and satiated individuals of three species of polyphagous and predatory carabids was studied by tracking beetles in cereal fields, using a portable harmonic radar system, and the influence of motivation (hunger level) on movement patterns and foragingbehavior exhibited by P. cupreus, P. melanarius, and P. niger is discussed. Expand
Habitat selection, reproduction and survival of two small carabid species on arable land: a comparison between Trechus secalis and Bembidion lampros
TLDR
The adaptive significance of their reproductive tactics and habitat preferences as adults and the suitability of cereal fields as habitats for reproduction and survival of populations are discussed. Expand
The abundance of arthropods along two field margins with different types of vegetation composition: an experimental study
TLDR
The effects of vegetation types and reclamation measures on the abundance of certain functional groups of above-ground and soil arthropod groups were studied and the possibility of improving the conditions for beneficial (predatory/ pollinating) arthropods are discussed. Expand
Mandible wear in the carabid beetle Pterostichus melanarius in relation to diet and burrowing behaviour
TLDR
Differences in behaviour apparently resulted in differential wear patterns between the sexes in the predatory carabid beetle Pterostichus melanarius Illiger, with females found to erode their mandibles more than males in the hard‐food‐only treatment, whereas males wore down their mandible more than females in the soil‐ only treatment. Expand
Habitat choice of some field‐inhabiting carabid beetles (Coleoptera: Carabidae) studied by recapture of marked individuals
TLDR
Habitat choice of some field‐inhabiting carabid beetles was studied in the field, and some species‐specific characteristics considered important for habitat choice by these carABid beetles, and the relevance of these characteristics for their dispersal behaviour are discussed. Expand
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