Search results 7.13.1 Introduction ECOLOGY 7.13 WHITE-CLAWED CRAYFISH 7.13.1 Introduction The White-clawed Crayfish is the only species of freshwater crayfish which is native to the UK. It has a wide distribution in the British Isles across lowland England and Wales and in central Ireland, mainly... 07-13-1-introduction 7.13.5 Survey Work ECOLOGY 7.13 WHITE-CLAWED CRAYFISH 7.13.5 Survey Work All surveys should be undertaken by suitably experienced, and where necessary, licensed surveyors. Habitat assessments can be undertaken at any time of year but surveys can only take place from mid-July to... 07-13-5-survey-work 7.13.7 Discovery on site ECOLOGY 7.13 WHITE-CLAWED CRAYFISH 7.13.7 Discovery on site If crayfish are identified during construction works on site, the works must be stopped immediately and the crayfish species identified by a suitably licensed person. If signal crayfish or any other... 07-13-7-discovery-on-site 7.13.8 General Good practice ECOLOGY 7.13 WHITE-CLAWED CRAYFISH 7.13.8 General Good Practice Plant and footwear used in and alongside water courses occupied by signal crayfish must be disinfected before being used elsewhere to avoid the spread of 'crayfish plague' Clearly cordon off... 07-13-8-general-good-practice 7.17.1.4 Hazards and method of distribution ECOLOGY 7.17 INVASIVE PLANT SPECIES 7.17.1 Giant hogweed 7.17.1.4 Hazards and method of distribution Giant hogweed presents both health and environmental hazards. The stems, edges and undersides of the leaves have small hairs, which contain large amounts of... 07-17-1-4-hazards-and-method-of-distribution 7.17.1.5 Control Measures ECOLOGY 7.17 INVASIVE PLANT SPECIES 7.17.1 Giant hogweed 7.17.1.5 Control Measures 7.17.1.5.1 Chemical Control Chemical control is the most effective method of controlling the plant. Spraying can start as soon as the plant is about 1m high, usually in March... 07-17-1-5-control-measures 7.17.2.4 Control Measures ECOLOGY 7.17 INVASIVE PLANT SPECIES 7.17.2. Japanese knotweed and hybrid species 7.17.2.4 Control Measures 7.17.2.4.1 Chemical Control Herbicide containing glyphosate can be used to control Japanese knotweed in the long term and can either be sprayed onto,... 07-17-2-4-control-measures 7.18.1.5 Control Measures ECOLOGY 7.18 INJURIOUS WEEDS 7.18 Common Ragwort 7.18.1.5 Control measures 7.18.1.5.1 Chemical Control Herbicides can be an effective method of control but one application is not usually sufficient. An annual regime of spraying will usually control the spread... 07-18-1-5-control-measures Appendix 2 European Protected Species ECOLOGY APPENDIX 2 European and Nationally Protected Species European Protected Species The ‘Habitats Directive’ (Council Directive 92/43/EEC) is transposed into legislation extending to England and Wales by The Conservation of Habitats and Species... 07-appendix-2-european-protected-species 8.1 Introduction CONTAMINATED LAND 8.1 Introduction A significant proportion of construction works are completed on formerly developed sites, which are typically characterised as ‘brownfield’. These sites will have been subject to either former construction... 08-1-introduction 29 30 31 32 33 34 35 36 37 38
