دانلود کتاب Grasshoppers & crickets

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For the first time ever, a DVD featuring exclusive video and audio material accompanies the latest New Naturalist volume, a multimedia first for the series. Ted Benton offers a comprehensive account of the appearance, variations, behaviour, habitat, life-cycles and distribution of all the native British species of bush-crickets, crickets, groundhoppers and grasshoppers. Many details from direct field observation are included, which are published here for the first time. With up-to-date information on newly arrived and recently established species, as well as long-established non-native species such as the house cricket and greenhouse camel cricket Benton pays special attention to a key area of evolutionary thought that has stimulated an international research focus on grasshoppers and crickets. Recent approaches to mating and reproduction emphasise differences and even conflicts of interest between males and females. The sexually selected adaptations and counter-adaptations to...