Monitoring Butterflies for Ecology and Conservation: The British Butterfly Monitoring Scheme

Forword J.A. Thomas. Preface. 1. The current status of British butterflies. 2. Aims and methods of monitoring. 3. Validation of the monitoring method. 4. Sites, site selection and 'national' monitoring. 5. Local distribution of butterflies. 6. Fluctuations in numbers. 7. Colonization and extinction. 8. Effects of wether on numbers. 9. Migration. 10. The flight-periods of butterflies. 11. Widespread butterflies of the countryside. 12. Rare and localized butterflies. 13. Site studies. 14. Population ecology. 15. Climatic warming. 16. Synopsis. Appendix A: Life cycles, food plants and behaviour. Appendix B: Sites and recorders in the Butterfly Monitoring Scheme. Appendix C: latin names of plants mentioned in the text. References. Sit index. Species index. Subject index.